Exhibit 2.1
September 30, 2003
                                                                    Confidential



                            STOCK PURCHASE AGREEMENT

                                      among

                                   3M Company,

                        3M Innovative Properties Company,

                                Durel Corporation

                                       and

                               Rogers Corporation


                      regarding the acquisition of stock in

                                Durel Corporation








         This STOCK PURCHASE AGREEMENT (the "Agreement") is made this 30th day
of September, 2003, by and among 3M Company, a Delaware corporation, with its
principal offices at 3M Center, St. Paul, Minnesota 55133 ("3M"), 3M Innovative
Properties Company, a Delaware corporation, with its principal offices at 3M
Center, St. Paul, Minnesota 55133 ("3M IPC") (3M and 3M IPC are referred to
jointly and severally as "Seller"), Durel Corporation, a Delaware corporation
with its principal place of business at 2225 West Chandler Boulevard, Chandler,
Arizona 85224 ("Joint Venture Company"), and Rogers Corporation, a Massachusetts
corporation, with its principal place of business at One Technology Drive,
Rogers, Connecticut 06263 ("Purchaser").

The Purchaser, the Joint Venture Company, and the Seller are each referred to as
a "Party" and, collectively, as the "Parties."

1.       BACKGROUND

         (a)      Purchaser and Seller's predecessor, Minnesota Mining and
                  Manufacturing Company, and the Joint Venture Company
                  originally entered into a Joint Venture Agreement on May 30,
                  1988, subsequently amended from time to time, ("JVA") for the
                  purpose of creating a business enterprise for developing,
                  manufacturing, and selling certain electroluminescent
                  products.

         (b)      Seller owns fifty percent (50%) of the issued and outstanding
                  shares of the Joint Venture Company, Seller's ownership
                  consisting of 1000 such shares, each share having a par value
                  of $0.01 (each a "Share" and, collectively, the "Shares"), and
                  Purchaser owns the remaining fifty percent (50%) of the Joint
                  Venture Company's shares.

         (c)      Purchaser has expressed an interest to become the sole owner
                  of the Joint Venture Company and Seller has expressed an
                  interest to sell to Purchaser all of its Shares in the Joint
                  Venture Company.

         NOW, THEREFORE, in consideration of the mutual agreements hereinafter
set forth, each of the Parties agree to this Stock Purchase Agreement as
follows.

2.       DEFINITIONS

         In this Agreement, the following terms and expressions shall have the
following meanings (such meanings to be equally applicable to both the singular
and plural forms of each of the terms and expressions defined):

         "Act" shall mean the Securities Act of 1933, as amended.

         "Acquired Business" shall have the meaning set forth in Section 7.1(b)
hereof.

         "Affiliate" shall mean any person or entity directly or indirectly
controlling, controlled by or under common control with another person or
entity. For purposes of this definition the term "control" (including the terms
"controlling" and "controlled") shall mean the possession, directly or
indirectly, of the power to direct or cause the direction of the management and
policies of a person or entity, whether through the ownership of voting
securities, by contract, or otherwise.


                                       1


         "Agreement" shall mean this Stock Purchase Agreement among the
Purchaser, the Joint Venture Company, and the Seller, as may be amended from
time to time as provided herein.

         "Ancillary R&D" shall have the meaning set forth in Section 7.1(a).

         "Applicable Books and Records" shall have the meaning set forth in
Section 7.6 hereof.

          "Closing" shall mean the closing of the sale and the purchase of the
Shares in accordance with Section 4.1 hereof.

         "Closing Date" shall have the meaning set forth in Section 4.1 hereof.

         "Dispute" shall have the meaning set forth in Section 10.1 hereof.

         "Environmental Laws" means any Laws relating to pollution or protection
of the environment, including regulations relating to emissions, discharges,
releases or threatened releases of pollutants, contaminants, chemicals, or
industrial, toxic or hazardous substances or wastes into the environment
(including without limitation ambient air, surface water, groundwater, or land),
or otherwise relating to the manufacture, processing, distribution, use,
treatment, storage, disposal, transport, or handling of pollutants,
contaminants, chemicals, or industrial, toxic or hazardous substances or wastes.

         "Governmental Authority" shall mean any local, regional, national or
supranational governmental authority or agency.

         "Indemnitee" shall have the meaning set forth in Section 9.4 hereof.

         "Indemnitor" shall have the meaning set forth in Section 9.4 hereof.

         "Joint Venture Company " shall have the meaning set forth in the
introductory section hereof.

         "Joint Venture Product Line" shall mean: (i) inverters, for use with
inorganic electroluminescent phosphors, which are semiconductors or discrete
component devices that convert DC power into AC power and increase peak-to-peak
voltage to at least 50 volts; and/or (ii) products based on inorganic
electroluminescent phosphors including coated inorganic phosphors, compositions
such as dispersions containing such phosphors, and light sources or lamps made
with such phosphors, a commercialized example of such electroluminescent
phosphors being zinc sulfide-based phosphors. The term inorganic
electroluminescent phosphors means inorganic phosphors which, in their intended
use, will be excited by a capacitively coupled AC electric field to give off
light. The term "electroluminescent phosphors" does not include, for example,
materials used in light emitting diodes (LEDs), including organic light emitting
diodes (OLEDs), or photoluminescent materials. The Joint Venture Product Line
does not include products into which the electroluminescent lamps, inverters or
compositions like those sold by the Joint Venture Company are incorporated, such
as time pieces, cellular phones, and automobile instrument panels.


                                       2


         "JVA" shall have the meaning set forth in Section 1(a) hereof.

         "Laws" means any federal, state, local, and foreign law, statute,
ordinance, rule, regulation, judgment, order, injunction, decree, arbitration
award, agency requirement, license or permit.

         "Losses" or "Claims" shall have the meaning set forth in Section 9.2
hereof.

         "Party" and "Parties" shall have the meanings set forth in the second
introductory paragraph hereof.

         "Patent License" shall have the meaning set forth in Section 7.3
hereof.

         "Person" shall mean any individual, corporation, general or limited
partnership, limited liability joint venture company, joint venture company,
organization or other entity or governmental body.

         "PLA" shall have the meaning set forth in Section 7.4 hereof.

         "Principals" shall have the meaning set forth in Section 10.1 hereof.

         "Purchase Price" shall have the meaning set forth in Section 3.2
hereof.

         "Purchaser" shall have the meaning set forth in the introductory
section hereof.

         "Seller" shall have the meaning set forth in the introductory section
hereof.

         "Shares" shall have the meaning set forth in Section 1(b) hereof.

         "Third Party Claim" shall have the meaning set forth in Section 9.4
hereof.

3.       PURCHASE AND SALE OF SHARES

         3.1. Sale and Purchase of Shares. On the date hereof ("Closing Date"),
Seller has sold, assigned, transferred and delivered to Purchaser and Purchaser
has purchased and accepted from Seller, all of Seller's right, title and
interest in and to the Shares, representing all of Seller's equity interest in
the Joint Venture Company. Seller has not been able to locate the original
certificate representing the Shares, and therefore in connection with the
consummation of this transaction, Seller has executed and delivered to Purchaser
an Affidavit of Loss and Indemnity.


                                       3


         3.2. Purchase Price. In consideration for the aforementioned transfer
and delivery to Purchaser of all of Seller's right, title, and interest in and
to the Shares, Purchaser has paid to Seller the Purchase Price of Twenty-Six
Million United States Dollars ($26,000,000.00) ("Purchase Price") in immediately
available funds.

4.       CLOSING

         4.1. Closing. The sale and transfer of the Shares by Seller to
Purchaser (the "Closing") is made effective as of 12:01 a.m. eastern time on the
date hereof ("Closing Date").

         4.2. Seller's Deliveries. At the Closing, Seller:

               (a)  transferred all of its right, title and interest in and to
                    the Shares to Purchaser; and

               (b)  delivered to Purchaser statements of resignations of each
                    director of the Joint Venture Company who represented Seller
                    on the board of directors of the Joint Venture Company
                    effective as of the Closing Date; and

               (c)  delivered to Purchaser and the Joint Venture Company such
                    other documents as were required to be delivered pursuant
                    hereto.

4.3. Purchaser Deliveries. At the Closing, Purchaser:

               (a)  transferred to Seller the Purchase Price by wire transfer in
                    immediately available funds into the accounts designated by
                    Seller prior to the Closing; and

               (b)  delivered to Seller such other documents as were required to
                    be delivered pursuant hereto.

         5.       SELLER'S REPRESENTATIONS AND WARRANTIES

         Seller hereby makes and agrees to the following representations and
warranties to and for the benefit of Purchaser, each of which is made as of the
Closing Date, and acknowledges that Purchaser has relied upon such
representations and warranties in connection with the purchase of the Shares
hereunder.

         5.1. Organization. Seller is a corporation duly organized and validly
existing under the laws of Delaware and has all power and authority to carry on
its business as presently being conducted.

         5.2. Capitalization. The Shares constitute all issued and outstanding
shares of Seller in the Joint Venture Company owned by Seller. Seller owns and
has title to the Shares, free and clear of all liens, claims, options, warrants,
pre-emption rights, charges and other encumbrances.


                                       4


         5.3. Authorization, Execution and Delivery.

               (a)  Seller has all requisite corporate power and authority to
                    enter into, execute and deliver this Agreement and each
                    other document delivered in connection herewith and to
                    perform all of its obligations hereunder.

               (b)  The execution of this Agreement and each other document
                    delivered in connection herewith by Seller and the
                    performance by Seller of the transactions contemplated
                    herein have been duly authorized and executed by all
                    necessary corporate action on the part of Seller.

               (c)  This Agreement and each other document delivered in
                    connection herewith by Seller constitute the legal, valid
                    and binding obligations of Seller, enforceable against
                    Seller in accordance with their respective terms.

         5.4. No conflict, consents. The execution of this Agreement by Seller
and each other document delivered in connection herewith by Seller does not and
the consummation of the transactions contemplated hereby will not:

               (a)  violate any law, regulation, order or judgment applicable to
                    the Seller;

               (b)  conflict with or result in any breach of any provision of
                    the charter documents of Seller; or

               (c)  require the Seller to obtain the approval or consent of any
                    Person, firm or other entity.

         5.5. Insolvency, Liquidation. Seller has not ceased payments of its
debts or had an administrator or reorganizer appointed or is otherwise subject
to, party to or otherwise affected by any action, request, decision or other
measure under any law or statute relating to bankruptcy, receivership,
liquidation or any event or procedure analogous thereto.

         5.6. Litigation and Investigations.

               (a)  There is no suit, administrative, arbitration or other legal
                    proceedings or investigations by any Person pending or
                    threatened against Seller that will affect the transaction
                    contemplated by this Agreement, and there are no such suits
                    or proceedings pending or threatened by Seller against any
                    Person and, to Seller's knowledge, there are no
                    circumstances likely to give rise to the same.

               (b)  Seller is not or has not been subject to or is in default
                    with respect to any court, administrative or arbitration
                    order, judgment, injunction, decree or other award made by
                    any Governmental Authority that will materially affect the
                    transaction contemplated by this Agreement.


                                       5


         5.7 Brokerage. There are no claims for brokerage commissions or
finder's fees or similar compensation in connection with the transactions
contemplated by this Agreement based on any arrangement or agreement made by or
on behalf of Seller.

         5.8 Claims. Seller has no knowledge of any claim arising from or
related to a material breach of the JVA or any document executed in connection
with the JVA by either it, the Joint Venture Company, or the Purchaser.

         6.       REPRESENTATIONS AND WARRANTIES OF PURCHASER

         Purchaser hereby makes and agrees to the following representations and
warranties to and for the benefit of Seller, each of which is made as of the
Closing Date, and acknowledges that Seller has relied upon such representations
and warranties in connection with the sale of the Shares hereunder.

         6.1. Organization. Purchaser is a corporation duly organized and
validly existing under the laws of Massachusetts and has all power and authority
to carry on its business as presently being conducted.

         6.2. Authorization, Execution and Delivery.

               (a)  Purchaser has all requisite corporate power and authority to
                    enter into, execute and deliver this Agreement and each
                    other document delivered in connection herewith and to
                    perform all of its obligations hereunder.

               (b)  The execution of this Agreement and each other document
                    delivered in connection herewith by Purchaser and the
                    performance by Purchaser of the transactions contemplated
                    herein have been duly authorized and executed by all
                    necessary corporate action on the part of Purchaser.

               (c)  This Agreement and each other document delivered in
                    connection herewith by Purchaser constitute the legal, valid
                    and binding obligations of Purchaser, enforceable against
                    Purchaser in accordance with their respective terms.

         6.3. No Conflict, Consents. The execution of this Agreement by
Purchaser and each other document delivered in connection herewith by Purchaser
does not and the consummation of the transactions contemplated hereby will not:

               (a)  violate any law, regulation, order or judgment applicable to
                    Purchaser;


                                       6


               (b)  conflict with or result in any breach of any provision of
                    the charter documents of Purchaser; or

               (c)  require Purchaser to obtain the approval or consent of any
                    Person, firm or other entity which has not been received.

         6.4 Insolvency, Liquidation. Purchaser has not ceased payments of its
debts or had an administrator or reorganizer appointed or is otherwise subject
to, party to or otherwise affected by any action, request, decision or other
measure under any law or statute relating to bankruptcy, receivership,
liquidation or any event or procedure analogous thereto.

         6.5      Litigation and Investigations.

               (a)  There is no suit, administrative, arbitration or other legal
                    proceedings or investigations by any Person pending or
                    threatened against the Purchaser that will affect the
                    transaction contemplated by this Agreement, and there are no
                    such suits or proceedings pending or threatened by the
                    Purchaser against any Person and, to the Purchaser's
                    knowledge, there are no circumstances likely to give rise to
                    the same.

               (b)  The Purchaser is not or has not been subject to or is in
                    default with respect to any court, administrative or
                    arbitration order, judgment, injunction, decree or other
                    award made by any Governmental Authority that will
                    materially affect the transaction contemplated by this
                    Agreement.

         6.6 Claims. Purchaser has no knowledge of any claim arising from or
related to a material breach of the JVA or any document executed in connection
with the JVA by either it, the Joint Venture Company, or the Seller.

         6.7 Investment Intent. Purchaser is purchasing the Shares for its own
account and not with a view to resell or otherwise distribute the Shares in
contravention of the provisions of state or federal securities laws.

         6.8 Receipt of Information. Purchaser is fifty percent (50%) owner of
the Joint Venture Company and has access to and has been furnished access to the
business records of the Joint Venture Company and such additional information
and documents as Purchaser has requested. Purchaser has been afforded an
opportunity to ask questions of and receive answers from Seller concerning the
terms and conditions of this Agreement.

         6.9 Restricted Securities. Purchaser understands that the Shares may
not be sold, transferred, or otherwise disposed of without registration under
the Act, or an exemption therefrom, and that in the absence of an effective
registration statement covering the Shares or an available exemption from
registration under the Act, the Shares must be held indefinitely. Purchaser will
not sell, transfer, or otherwise dispose of the Shares except pursuant to an
effective registration statement or pursuant to an available exemption from
registration.


                                       7


         6.10 Experience. Purchaser is a sophisticated investor possessing such
knowledge and experience in financial and business matters and in making
investments of this type. Purchaser is capable of evaluating the merits and
risks of purchasing the Shares. Purchaser is able to bear the economic risk of
purchasing the Shares.

         6.11 Brokerage. There are no claims for brokerage commissions or
finder's fees or similar compensation in connection with the transactions
contemplated by this Agreement based on any arrangement or agreement made by or
on behalf of Purchaser.

7.       Post-Closing Covenants

         7.1. Non-Competition/Confidentiality.

               (a)  For a period of four (4) years from the Closing Date, Seller
                    shall not, and shall cause its Affiliates not to, engage in
                    the manufacture, distribution or sale of products within the
                    Joint Venture Product Line. During said four (4) year period
                    Seller further shall not, and shall cause its Affiliates not
                    to, undertake preparations or research, or otherwise make
                    investments, with the primary intent of manufacturing,
                    distributing or selling products within the Joint Venture
                    Product Line at the conclusion of the four (4) year period.
                    The foregoing sentence is not intended to prevent research
                    and development that is not for the primary intent described
                    therein, and Seller remains free to conduct any such
                    permitted research and development, including research and
                    development activities within the Joint Venture Product Line
                    that is ancillary to Seller's permitted research and
                    development activities (hereafter "Ancillary R&D"). If a
                    product falling within the Joint Venture Product Line
                    results from Ancillary R&D, neither Seller nor any of its
                    Affiliates will sell or distribute such a product, or
                    license such Ancillary R&D for use within the Joint Venture
                    Product Line, until after five (5) years from the Closing
                    Date. Nothing in this paragraph is intended to prevent
                    Seller or its Affiliates from doing research and development
                    involving phosphors for intended uses in which they will not
                    be excited by a capacitively coupled AC electric field.

               (b)  Section 7.1(a) shall be deemed not breached as a result of
                    any of the following:

                    (i)  The acquisition of any business or the assets of a
                         business ("Acquired Business") that, directly or
                         indirectly, manufactures, distributes or sells products
                         within the Joint Venture Product Line; provided that:
                         (a) the aggregate consolidated revenues of the Acquired
                         Business from sales in the Joint Venture Product Line
                         are less than both $5 million and ten percent (10%) of
                         total aggregate consolidated revenues of the Acquired
                         Business for the twelve-month period immediately before
                         the acquisition; or (b) if the aggregate consolidated
                         revenues of the Acquired Business from such activities
                         are more than the amounts permitted above for the
                         twelve month period immediately before the acquisition,
                         Seller shall, or shall cause its Affiliate(s) to,
                         effect the disposition of the part of the Acquired
                         Business engaged in such manufacture, distribution and
                         sales within one (1) year of the date of such
                         acquisition.


                                       8


                    (ii) The manufacture and sale of products within the Joint
                         Venture Product Line, including the purchase of
                         products within the Joint Venture Product Line from
                         other suppliers for resale or use in Seller's own
                         products, provided that:

               a)   The manufacture or sale of the products is limited to the
                    fields of Commercial Graphic Materials, Traffic Control
                    Materials or Marine Markets (Excluded Fields) defined as:

                    i)   Commercial Graphic Materials are graphic signs and
                         sheets for commercial uses and components of such signs
                         and sheets. Commercial Graphic Materials include flat
                         panel displays having a multiplicity of pixels for
                         forming images that can be changed (switched on or off)
                         over relatively short periods of time. A pixel is a
                         small image-forming unit on a display screen the
                         illumination of which can be controlled independently
                         of adjacent pixels.

                    ii)  Traffic Control Materials are signs for marking
                         transportation arteries, such as navigational lanes for
                         maritime use, airport runways and taxiways for aviation
                         use, railroad and subway lines, roads, construction
                         work zones, crosswalks and the like, sheeting for such
                         signs and components of such sheeting and signs.
                         Traffic Control Materials include flat panel displays
                         having a multiplicity of pixels for forming images that
                         can be changed (switched on or off) over relatively
                         short periods of time.

                    iii) Marine Markets are lighting devices used on boats and
                         boat docking facilities, such as lamps lighting the
                         interior of a boat or lamps lighting a boat walkway.

               b)   Such manufacture or sale occurs either i) before April 13,
                    2005, or ii) if after April 13, 2005, but during the four
                    year period of Section 7.1(a), only in each of those
                    Excluded Fields in which Seller and its Affiliates have had
                    total worldwide sales of products within the Joint Venture
                    Product Line during a consecutive 12-month period of at
                    least Five Hundred Thousand Dollars ($500,000.00) by April
                    13, 2005; and


                                       9


               c)   The Joint Venture Company does not make the required
                    products or have the capability to manufacture them in the
                    quality or quantity required. If the Joint Venture Company
                    makes the required products or has the capability to
                    manufacture them in the quality and quantity required,
                    Seller or its Affiliates, as the case may be, will obtain
                    from the Joint Venture Company so much of their requirements
                    for such products as the Joint Venture Company is willing to
                    supply at prices competitive with prices offered by any
                    other qualified prospective supplier of such products.
                    However, a supplier which Seller or its Affiliates have a
                    reasonable basis to conclude is infringing any of the
                    patents exclusively licensed to the Joint Venture Company by
                    Seller, without a license from or the permission of the
                    Joint Venture Company, shall not be a qualified supplier.

                    (iii) The resale by Seller or its Affiliate(s) of any
                         product purchased, directly or indirectly, from the
                         Joint Venture Company, as such product is purchased, in
                         combination with other components, or in modified form.

               (c)  Confidentiality. The Parties have agreed to amend the
                    Confidentiality Agreement between the Parties dated May 18,
                    1990, in accordance with the Confidentiality Agreement
                    Amendment attached hereto as Exhibit A.

         7.2 Non-Solicitation of Joint Venture Company Employees. For a period
of four (4) years from the Closing Date, Seller shall not, and shall cause its
Affiliates not to, solicit any Joint Venture Company employee without
Purchaser's prior written consent. As used in this section, "solicit" shall not
be interpreted to include general employment advertising or general employment
solicitations that are not specifically targeted or directed to Joint Venture
Company employees.

         7.3 Intellectual Property. The Parties have agreed to a license of
certain patents from the Closing Date as set forth in the Patent License,
Exhibit B (the "Patent License").

         7.4      Transition Assistance.

               (a)  After the Closing, the Joint Venture Company will be solely
                    responsible for designing, developing, manufacturing and
                    selling the Joint Venture Company Product Line for all
                    applications. Seller will provide reasonable cooperation and
                    support, without compensation, for a mutually agreed period
                    of time, not to exceed three (3) months after Closing, to
                    assist the Joint Venture Company in supporting automotive
                    applications for the Joint Venture Company Product Line.
                    Seller and Purchaser shall cooperate to ensure, and
                    Purchaser will use commercially reasonable efforts to cause
                    the Joint Venture Company to meet all outstanding
                    pre-Closing Date supply commitments to automotive customers
                    of Joint Venture Company products.


                                       10


               (b)  John Dowdell, who is an employee of Seller currently
                    seconded to and serving as the President of the Joint
                    Venture Company under the terms of a Personnel Lease
                    Agreement (the "PLA") between the Joint Venture Company and
                    Minnesota Mining and Manufacturing Company, will remain as
                    an employee of Seller. A true and correct copy of the PLA is
                    attached hereto as Exhibit E. To assist with the transition
                    to a Purchaser-appointed successor, the PLA will remain in
                    effect for so long as Purchaser may desire, but no longer
                    than ninety (90) days following the Closing Date. The Joint
                    Venture Company's obligations under Sections 3, 5, 6, 9 and
                    10 of the PLA will survive its termination.

         7.5 Notices. From and after the Closing, Seller shall promptly forward
to Purchaser any correspondence and notices received by Seller that relate to
the Joint Venture Company.

         7.6 Access to and Retention of Records. The Parties agree that all
"Applicable Books and Records" (as defined below) retained by the Joint Venture
Company shall be open for inspection by representatives of the Seller at any
time during regular business hours for a period of three (3) years from the date
of preparation or compilation of such books, records, documents or materials and
that the Seller may during such period at its expense make such copies or
excerpts therefrom, in either case to comply with legal, audit or tax
obligations, as they may reasonably request. For a period of seven (7) years
following the Closing Date, the Joint Venture Company shall not destroy or give
up possession of any original or final copy of any of the Applicable Books and
Records reasonably required in the preparation of tax, regulatory and other
governmental compliance matters, without first offering Seller the opportunity
to obtain such original or final copy or a copy thereof. For purposes of this
Section, the term "Applicable Books and Records" shall mean all audited
financial statements, quarterly financial statements and tax statements of the
Joint Venture Company.

         7.7 Tax Reporting. The Parties hereby agree to report or cause to be
reported, as applicable, the sale and purchase of the Seller's Shares in the
Joint Venture Company for all United States federal, state, and local tax
purposes in a manner consistent with such Purchase Price and such allocation
thereof, and not take or cause to be taken, as applicable, any position on any
tax return that is inconsistent with such Purchase Price or such allocation
thereof, except as may be required by applicable law, without obtaining the
prior written consent of the Parties.

         7.8      Covenant Regarding Seller Know-How.

               (a)  "Seller Know-How" shall mean information in tangible or
                    intangible form, received by the Joint Venture Company from
                    Seller or its Affiliates before the Closing Date and related
                    to developing, making, using, testing, marketing or selling
                    the Joint Venture Product Line.


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               (b)  Seller, on behalf of itself, its Affiliates, and their
                    respective successors and assigns, covenants that neither it
                    nor any of its Affiliates, nor any of their successors and
                    assigns, will sue the Joint Venture Company, its Affiliates,
                    and successors in interest to the Joint Venture Company
                    business for their use of Seller Know-How; provided that
                    such use is for the purpose of developing, making, using,
                    testing, marketing, or selling products within the scope of
                    the Joint Venture Product Line. The covenant in this
                    Paragraph 7.8(b) shall extend to parties in privity with the
                    Joint Venture Company, its Affiliates, and successors in
                    interest with respect to this covenant. As used herein,
                    parties "in privity" are parties having a mutual or
                    successive relationship to the Seller Know-How and this
                    covenant and having a legal right to access to the Seller
                    Know-How and an obligation to hold the Seller Know-How
                    confidential to the same degree as the Joint Venture
                    Company. A party in privity, may include, for example, a
                    foreign company that has been licensed by the Joint Venture
                    Company to manufacture the Joint Venture Product Line. The
                    covenant in this Paragraph 7.8(b) cannot be assigned or
                    licensed by the Joint Venture Company except in connection
                    with a sale of either a controlling interest in the shares
                    in the Joint Venture Company, or all or substantially all of
                    the assets of the Joint Venture Company.

               (c)  Seller, on behalf of itself, its Affiliates, and their
                    respective successors and assigns, covenants not to sue the
                    Joint Venture Company and the other parties mentioned in
                    Paragraph 7.8(b) above under Seller's patents to the extent
                    that Seller's patents cover Seller Know-How because of the
                    Joint Venture Company's manufacture, use, sale, or offer for
                    sale of:

                    (i)  products in the Joint Venture Product Line that are
                         made or sold by the Joint Venture Company on the
                         Closing Date or

                    (ii) products in the Joint Venture Product Line that are
                         within a category identified on Exhibit C attached
                         hereto and that are developed using Seller Know-How,
                         where such use of Seller Know-How would give rise to a
                         cause of action for patent infringement under Seller's
                         patents.

                    The covenant under this Paragraph 7.8(c) shall further
                    extend to the Joint Venture Company's direct and indirect
                    customers (including end users) to the extent that such
                    customers are using or reselling products in the Joint
                    Venture Product Line purchased from the Joint Venture
                    Company.

               (d)  Subject to the covenant of Paragraph 7.8(c) above, and
                    subject to any express licenses to the Joint Venture Company
                    under other agreement(s), Seller may separately license its
                    patents to or enforce its patents against the Joint Venture
                    Company or any other entity including the other parties
                    mentioned in Paragraph 7.8(b).


                                       12


               (e)  With respect to any covenants made herein, it is understood
                    that Seller Know-How includes only information received by
                    the Joint Venture Company from Seller or its Affiliates
                    before the Closing Date, and no covenant shall cover any
                    know-how, information, or Seller inventions conceived after
                    the Closing Date or any patents covering such know-how,
                    information or inventions.

               (f)  In the event that the Joint Venture Company enters into, or
                    has entered into, confidentiality agreements with its
                    employees relating to, among other things, Seller Know-How,
                    the Parties hereby express their intention that Seller shall
                    be a third-party beneficiary of such agreements to the
                    extent that such agreements apply to Seller Know-How,
                    thereby allowing Seller to enforce such agreements directly
                    so as to protect the confidentiality of Seller Know-How.

         7.9 Research and Development Agreement. The Parties have agreed to an
extension of the termination of the Research and Development Agreement between
Seller and the Joint Venture Company (attached hereto as Exhibit D).

8.       TERMINATION OF JVA

         Termination of JVA. Except as provided herein, the JVA, including its
reciprocal manufacturing and sales restrictions, non-compete and confidentiality
provisions will terminate upon Closing. Notwithstanding the foregoing, and for
the avoidance of doubt, Sections 10.01 and 10.03 of the JVA shall be replaced in
their entirety by Section 7.1 of this Agreement and Exhibit A, respectively.

9.       INDEMNIFICATION

         9.1 The representations and warranties set forth in this Agreement
shall survive for a period of twelve (12) months from the Closing Date. The
covenants and other agreements contained in this Agreement shall survive in
accordance with their terms.

         9.2 Indemnification by Seller. Seller agrees to defend, indemnify and
hold harmless Purchaser, and its Affiliates, agents and any of its successors
and assigns, from and against any and all losses, damages, claims, suits,
proceedings, liabilities, costs and expenses (including settlement costs,
interest, penalties, reasonable attorney's fees and any reasonable legal or
other expenses for investigation or defense of any actions or threatened
actions) (collectively, "Losses" or "Claims," as the context requires) which may
be imposed, sustained, incurred or suffered or asserted as a result of, relating
to or arising out of any of the following: (i) the breach of any representation
or warranty of Seller contained in this Agreement; and (ii) any failure by
Seller or any of its Affiliates to perform any covenant, agreement or obligation
of Seller (including its Affiliates) contained in this Agreement.


                                       13


         9.3 Indemnification by Purchaser. Purchaser agrees to defend, indemnify
and hold harmless Seller and its Affiliates, agents and any of its successors
and assigns from and against any and all Losses and Claims which may be imposed,
sustained, incurred or suffered or asserted as a result of, relating to or
arising out of any of the following: (i) the breach of any representation or
warranty of Purchaser contained in this Agreement; (ii) any failure by Purchaser
to perform any covenant, agreement or obligation of Purchaser contained in this
Agreement; (iii) any failure by the Joint Venture Company to satisfy its
obligation or liabilities, including without limitation (a) for taxes, charges,
fees and periodic deposits (including interest and penalties) determined to be
due to any Governmental Authority; (b) Joint Venture Company employee
compensation, benefits, pensions (including the funding of the Joint Venture
Company pension fund), programs or taxes; (c) the Joint Venture Company's
employment of any current or former Joint Venture Company employee, or the
provision of services to the Joint Venture Company by any individual who was not
an employee of the Joint Venture Company, but who was, without limitation, an
independent contractor; (d) contractual undertakings of the Joint Venture
Company; (e) the design, development, manufacture, sale, advertising or
promotion of the products of the Joint Venture Company; (f) non-compliance with
Laws, including Environmental Laws; provided that the indemnification provided
by clause (iii) of this Section 9.3 shall not apply to Losses or Claims to the
extent (but only to the extent) attributable to any intentionally tortious or
criminally wrongful action taken by Seller or any of its Affiliates.

         9.4      Procedure for Third Party Claims.

               (a)  If a Person entitled to assert a claim for indemnification
                    under this Agreement shall receive notice of the assertion
                    by any Person not a party to this Agreement of any claim or
                    of the commencement of any action or proceeding (a "Third
                    Party Claim") with respect to which Seller or Purchaser is
                    obligated to provide indemnification, the indemnified party
                    (the "Indemnitee") shall give the indemnifying party (the
                    "Indemnitor") prompt written notice after becoming aware of
                    such Third Party Claim. The failure of the Indemnitee to
                    give notice as provided in this Section shall not relieve
                    the Indemnitor of its obligations for indemnification under
                    this Agreement, except to the extent that the failure has
                    materially and adversely affected the rights of the
                    Indemnitor. The notice from the Indemnitee shall describe
                    the Third Party Claim in reasonable detail.

               (b)  An Indemnitor may elect to compromise or defend, at the
                    Indemnitor's own expense and by such Indemnitor's own
                    counsel, any Third Party Claim. If an Indemnitor elects to
                    compromise or defend a Third Party Claim, it shall, within
                    thirty (30) days (or sooner, if the nature of the Third
                    Party Claim so requires), notify the Indemnitee of its
                    intent to do so, and the Indemnitee shall cooperate in the
                    compromise of, or defense against, the Third Party Claim.
                    The Indemnitor shall pay the Indemnitee's actual
                    out-of-pocket expenses incurred in connection with its
                    cooperation. After notice from an Indemnitor to an
                    Indemnitee of its election to assume the defense of a Third
                    Party Claim, the Indemnitor shall not be liable to the
                    Indemnitee under this Agreement for any legal expenses
                    subsequently incurred by the Indemnitee in connection with
                    the defense of the Third Party Claim, provided that
                    Indemnitee shall have the right to employ one counsel to
                    represent Indemnitee if, under applicable standards of
                    professional conduct, a conflict of interest between the
                    Indemnitee and the Indemnitor exists in respect of such
                    Third Party Claim, and in that event the fees and expenses
                    of such separate counsel shall be paid by the Indemnitor. If
                    an Indemnitor elects not to defend against a Third Party
                    Claim, or fails to notify an Indemnitee of its election as
                    provided in this Paragraph, the Indemnitee may pay,
                    compromise or defend such Third Party Claim on behalf of and
                    for the account and risk of the Indemnitor. No Indemnitor
                    shall consent to entry of any judgment or enter into any
                    settlement, except with the written consent of each related
                    Indemnitee (which consent shall not be unreasonably
                    withheld), which provides for anything other than money
                    damages or other money payments for which the Indemnitee is
                    entitled to indemnification under this Agreement or which
                    does not contain as an unconditional term thereof the giving
                    by the claimant or plaintiff to the Indemnitee of a release
                    from all liability in respect of the Third Party Claim.


                                       14


         9.5 Procedure for Non-Third Party Claims. With respect to any claim for
indemnification hereunder which does not result from a Third Party Claim, the
Indemnitor shall have a period of thirty (30) days after receipt of notice from
the Indemnitee within which to respond to the Indemnitee. If the Indemnitor does
not respond within the thirty (30) days period or responds within such period
and rejects the claim in whole or in part, the Indemnitee shall be free to
pursue such remedies as may be available to the Indemnitee under applicable law.

         9.6 Reduction of Claim or Loss. If the amount of any Claim or Loss
shall, at any time subsequent to payment pursuant to this Agreement, be reduced
by recovery, settlement or otherwise, the amount of such reduction, less any
expenses incurred in connection therewith, shall promptly be repaid by the
Indemnitee to the related Indemnitor.

         9.7 Limitation. Notwithstanding anything to the contrary in Sections
9.2 (i) and 9.3(i), neither Party shall be entitled to seek indemnification from
the other Party for any Losses or Claims unless the Indemnitee's Losses or
Claims exceed Twenty-Five Thousand Dollars ($25,000.00), and then
indemnification will be available only for Losses and Claims in excess of
Twenty-Five Thousand Dollars ($25,000.00). Notwithstanding anything herein to
the contrary, the maximum aggregate liability of Seller or Purchaser under
Section 9.2(i) or 9.3(i) shall not exceed the Purchase Price, except in the case
of Claims or Losses arising with respect to either Section 5.8 or 6.6, in which
case the maximum aggregate liability of Seller or Purchaser under Section 9.2(i)
or 9.3(i) shall not exceed seventy-five percent (75%) of the Purchase Price. IN
NO EVENT SHALL ANY PARTY BE LIABLE FOR INCIDENTAL, PUNITIVE, SPECIAL OR
CONSEQUENTIAL DAMAGES TO THE OTHER PARTIES.

         9.8 Remedies Cumulative and Non-Exclusive. The remedies provided in
this Section shall be cumulative and shall not preclude the assertion by any
Party to this Agreement of any other rights or the seeking of any other remedies
against any other Party to this Agreement.


                                       15


         9.9 Mutual Release of Claims and Defenses. Purchaser, Seller, and the
Joint Venture Company each expressly and irrevocably waives, releases and
forever discharges each other Party or Parties and its or their predecessors and
current or former Affiliates from and against any and all demands, claims,
actions, causes of action, defenses, or disputes of any kind whatsoever (whether
in law or equity and whether for damages, costs, attorneys' fees or expenses),
whether known or unknown, which it ever had, now has or hereinafter can, shall
or may claim to have against any of them, relating to, arising out of or based
on any matter, cause or thing whatsoever for acts, omissions or events occurring
through the date of this Agreement and relating to the Joint Venture Company,
the JVA, or the relationship of Seller and Purchaser created in connection
therewith, other than claims directly arising under the express terms of this
Agreement or any other agreement executed in connection therewith. This general
release specifically includes any and all claims, actions and causes of action
relating to the creation, funding, and operation of the Joint Venture Company or
any breach or alleged breach of the JVA. For the avoidance of doubt, this
Section 9.9 does not in any way limit the indemnity undertakings of Seller and
Purchaser under Sections 9.2 and 9.3, respectively.

10.      DISPUTE RESOLUTION

         10.1 Dispute Resolution. Any disagreement or dispute between the
Parties arising out of or related to this Agreement or the breach or making
hereof (a "Dispute") shall be resolved in the manner provided in this Section
10.1. Should there develop any Dispute, any Party may, by written notice to the
other Party, request that such Dispute be referred to the Executive Vice
President of the Transportation Business of 3M, the Chief Executive Officer of
the Purchaser, and, for so long as it remains a legal Person not part of
Purchaser, the General Manager of the Joint Venture Company (the "Principals"),
as applicable, who shall negotiate in good faith to attempt to resolve the
Dispute. No settlement reached under this Section 10.1 shall be binding on the
Parties until reduced to a writing signed on behalf of the Parties by the
Principals.

         10.2 Mediation. Should the procedure outlined in Section 10.1 fail to
bring about a resolution of each outstanding Dispute within 30 days following
the giving of the notice referred to therein, then the parties shall promptly
initiate a voluntary, non-binding mediation conducted by a mutually-agreed
mediator. The Parties shall each bear a pro rata share of the costs and expenses
of the mediation and shall endeavor in good faith for a period of 120 days
following the giving of the notice referred to in Section 10.1 to resolve
through such mediation each outstanding Dispute. No settlement reached under
this Section 10 shall be binding on the Parties until reduced to a writing
signed on behalf of the Parties by the Principals.

         10.3 Litigation. In the event the parties are unable to resolve any
outstanding Dispute as provided above, then such outstanding Dispute shall be
determined by litigation as provided in Section 10.6, below.

         10.4 Injunctive Relief. Notwithstanding anything to the contrary
provided in this Section 10, and without prejudice to the above procedures, any
Party may at any time, in connection with any Dispute, apply to a court of
competent jurisdiction for temporary injunctive or other provisional judicial
relief if in such Party's sole judgment such action is necessary to avoid
irreparable damage or to preserve the status quo until such time as the Dispute
is otherwise resolved in accordance with this Section 10.


                                       16


         10.5 Governing Law; Waiver of Jury. Any questions, claims, disputes,
remedies, or litigation arising from or related to this Agreement, and any
relief or remedies sought by any parties hereunder, shall be governed
exclusively by the laws of the State of New York, without giving effect to the
conflicts of laws principles thereof. Each Party hereby irrevocably waives any
and all statutory or constitutional right to trial by jury in any action,
proceeding or counterclaim (whether based on contract, tort or otherwise)
arising out of or relating to this Agreement or the actions of the parties in
the negotiation, administration, performance or enforcement thereof.

         10.6 Litigation; Jurisdiction. In the event and to the extent that the
parties are unable to resolve any dispute in the manner provided above, and as a
last resort only, any party may commence litigation; provided that any lawsuit
must be filed and maintained in the state or federal courts (as jurisdictionally
appropriate) of the state in which one or more defendants is to receive notices
under Section 11.2.

11.      GENERAL PROVISIONS

         11.1 Expenses. All fees and expenses incurred in connection with this
Agreement, including all fees of counsel and accountants, shall be borne by the
Party incurring the same.

         11.2 Notices. All notices, requests, demands and other communications
required or permitted under this Agreement shall be in writing and delivered by
hand or mailed, certified or registered mail with postage prepaid, or by
telecopier, or by overnight courier service:


                           (i)      If to Seller, to:

                                    Steve J. Landwehr Executive Vice President
                                    Transportation Business 3M Company 3M
                                    Center, Bldg. 220-14W-01 St. Paul, Minnesota
                                    55144-1000 Fax No. 651-736-6388


                                       17


                                    with a copy to:
                                    --------------

                                    Richard F. Ziegler
                                    Senior Vice President Legal Affairs and
                                        General Counsel
                                    3M Company
                                    3M Center, Bldg. 220-14W-07
                                    St. Paul, Minnesota  55144-1000
                                    Fax No. 651-736-7859

or to such other person or address as Seller shall furnish in writing.

                           (ii)     If to Purchaser, to:

                                    Robert D. Wachob
                                    President and Chief Operating Officer
                                    Rogers Corporation
                                    One Technology Drive
                                    P.O. Box 188 Rogers, Connecticut 06263

                                    with copies to:
                                    --------------

                                    Terrence W. Mahoney, Esq.
                                    LeBoeuf Lamb Greene & MacRae
                                    260 Franklin Street
                                    Boston, MA  02110

                                    and

                                    Robert M. Soffer
                                    Vice President and Secretary
                                    Rogers Corporation
                                    One Technology Drive
                                    P.O. Box 188
                                    Rogers, Connecticut  06263

or to such other person or address as Purchaser shall furnish in writing.


                                       18


                            (i)     If to the Joint Venture Company, to:

                                    Robert M. Soffer
                                    Vice President and Secretary
                                    Rogers Corporation
                                    One Technology Drive
                                    P.O. Box 188
                                    Rogers, Connecticut  06263

                                    with copies to:
                                    --------------

                                    Michael D. Bessette
                                    Vice President
                                    Durel Corporation
                                    2225 West Chandler Blvd.
                                    Chandler, AZ 85224

                                    and

                                    Terrence W. Mahoney, Esq.
                                    LeBoeuf Lamb Greene & MacRae
                                    260 Franklin Street
                                    Boston, MA  02110

or to such other person or address as the Joint Venture Company shall furnish in
writing.

         11.3 Assignment. This Agreement and all of its provisions shall be
binding upon and inure to the benefit of the Parties and their respective
successors and permitted assigns. Purchaser may assign its rights and benefits
under this Agreement (but not its obligations) to any Person which acquires
either the shares of the Joint Venture Company or all or substantially all the
assets of the Joint Venture Company. Except as set forth in the preceding
sentence, neither this Agreement nor any of the rights, interests or obligations
under this Agreement shall be assigned by any of the Parties without the prior
written consent of the other Parties, except by operation of law.

         11.4 Counterparts. This Agreement may be executed simultaneously in two
or more identical counterparts, each of which shall be deemed an original, but
all of which together shall constitute one and the same instrument.

         11.5 Interpretation. The headings of the Sections and Subsections of
this Agreement are inserted for convenience only and shall not constitute a part
of or affect in any way the meaning or interpretation of this Agreement. The
words "include," "includes" and "including" when used in this Agreement shall be
deemed in each case to be followed by the words "without limitation."


                                       19


         11.6 Entire Agreement. This Agreement, including the Exhibits and
Schedules to this Agreement, and the other documents and certificates delivered
pursuant to the terms of this Agreement set forth the entire agreement and
understanding of the Parties with respect to the subject matter of this
Agreement and supersedes all prior agreements, promises, covenants,
arrangements, communications, representations or warranties, whether oral or
written, by any officer, employee or representative of any Party.

         11.7 Amendment; Waiver. This Agreement may be amended only by a written
instrument executed by Seller, Purchaser and the Joint Venture Company. Any
failure of any Party to comply with any obligation, agreement or condition under
this Agreement may only be waived in writing by the other Parties, but such
waiver shall not operate as a waiver of, or estoppel with respect to, any
subsequent or other failure. No failure by any Party to take any action against
any breach of this Agreement or default by the other Parties shall constitute a
waiver of such Party's right to enforce any provision of this Agreement or to
take any such action.

         11.8 Third Parties. Except as specifically set forth or referred to in
this Agreement nothing in this Agreement expressed or implied is intended, or
shall be construed, to confer upon or give to any person or entity other than
the Parties and their successors or assigns, any rights or remedies under or by
reason of this Agreement.

         11.9 Additional Documents and Acts. After the Closing, each Party
agrees to execute and deliver such additional documents, certificates and
instruments, and to perform such additional acts, as may be reasonably requested
and necessary or appropriate to carry out all of the provisions of this
Agreement, and to consummate all of the transactions contemplated by this
Agreement including, without limitation, such documents as may be required to
confirm the termination of any obligation Seller may have had prior to the
Closing to guaranty indebtedness of the Joint Venture Company.

         11.10 Specific Performance. The Parties agree that irreparable damage
would occur in the event any provision of this Agreement were not performed in
accordance with the terms hereof and that the Parties shall be entitled to
specific performance of the terms hereof, in addition to any other remedy at law
or in equity.

         11.11 No Causes of Action Against Individuals. No claims relating to
the subject matter of this Agreement may be brought by any Party against any
director, officer or employee of the other Party in his or her individual
capacity.

         11.12 No Presumption Regarding Drafting. The Parties acknowledge that
they have reviewed this Agreement prior to its execution and that changes were
made to this Agreement based upon their comments. If any disputes arise with
respect to the interpretation of any provision of this Agreement, the provision
shall be deemed to have been drafted by all of the Parties to it and shall not
be construed against any Party on the basis that the Party was responsible for
drafting that provision.




                                       20





         IN WITNESS WHEREOF, the Parties have executed this Agreement, acting by
their duly authorized agents, as of the date first above written.


SELLER:                                    PURCHASER:

3M COMPANY                                 ROGERS CORPORATION


By: /s/ Steven J. Landwehr                 By:  /s/ Robert M. Soffer
    ----------------------                      --------------------

Printed Name:  Steven J. Landwehr          Printed Name:  Robert M. Soffer
               ------------------                         ----------------
Title: Executive Vice President            Title:  Vice President and Secretary
       --------------------------                  ----------------------------

3M INNOVATIVE PROPERTIES COMPANY           JOINT VENTURE COMPANY:
                                           DUREL CORPORATION

By:  /s/ Carolyn A. Bates                  By:  /s/ Robert A. Schneider
   ----------------------                     -------------------------
Printed Name: Carolyn A. Bates             Printed Name:  Robert A. Schneider
              ----------------                            ------------------

Title:  Secretary                          Title:  Chief Financial Officer
        ---------                                  -----------------------


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