Exhibit 10.46
                            CHANGE IN CONTROL AGREEMENT

          THIS CHANGE IN CONTROL AGREEMENT ("Agreement") is made as of May 1,
1999 by and between McWhorter Technologies, Inc., a Delaware corporation (the
"Company") and Warren Grayson (the "Employee").

          WHEREAS, Company considers the maintenance of a motivated management
group to be essential to protecting and enhancing the best interests of Company
and its stockholders and to that end Company has determined to provide benefits
to certain management employees in the event their employment is terminated
following a Change in Control of Company; and

          WHEREAS, Employee is a member of Company's management group and
Company has determined that to reinforce and encourage the continued attention
and dedication of Employee to his duties, free from distractions which could
arise in anticipation of or subsequent to a Change in Control of Company, it
should enter into this Agreement with the Employee;

          NOW, THEREFORE, in consideration of the mutual covenants contained
herein, Company and Employee agree as follows:

     1.   TERM AND NATURE OF AGREEMENT.  This Agreement shall commence as
of the date hereof and shall continue in effect until May 1, 2002.  As of May 1,
2002 and each third May 1st occurring thereafter, this Agreement shall be
automatically renewed for a term of three (3) years unless Company gives written
notice to Employee at least 90 days prior to the renewal date that this
Agreement will not be extended.  Notwithstanding the foregoing, if a Change in
Control (as hereinafter defined) occurs during the last two (2) years of any
term of this Agreement, the term of this Agreement shall automatically be
extended for a period of twenty-four (24) months after the end of the month in
which the Change in Control occurs.  Furthermore, Employee may terminate this
Agreement at any time by giving Company 30 days' advance written notice.  This
Agreement shall be construed and enforced under the Employee Retirement Income
Security Act of 1974, as amended ("ERISA") as an unfunded welfare benefit plan.
The Agreement shall be administered by the Compensation Committee of the Board
of Directors of the Company (the "Committee").

     2.   SEVERANCE BENEFITS FOLLOWING A CHANGE IN CONTROL.  If Employee's
employment with Company is terminated within twenty-four (24) months following a
Change in Control, Employee shall be entitled to the following severance
benefits (in addition to any non-severance compensation and benefits provided
for under any of Company's employee benefit plans, policies and practices or
under the terms of any other contracts, but in lieu of any severance pay under
any Company employee benefit plan, policy and practice or under the terms of any
other contract including any employment contract):



     (a)  If Employee's employment is terminated by reason of Employee's
disability, retirement or death of by Employee other than for Good Reason, the
Company shall pay Employee his full base salary through the Date of Termination
at the rate in effect at the time of termination (or the date of death in the
case of Employee's death), plus any bonus or incentive compensation award which,
pursuant to the terms of any compensation or incentive plan, Employee is
entitled to receive but which has not yet been paid.

     (b)  If Employee's employment is terminated for Cause, Company shall
pay Employee his full base salary through the Date of Termination at the rate in
effect at the time Notice of Termination is given plus any bonus or incentive
compensation award which, pursuant to the terms of any compensation or incentive
plan, Employee is entitled to receive but which has not yet been paid.

     (c)  If Employee's employment is terminated by Company other than for
Cause or by Employee for Good Reason, then:

          (i)       Within five (5) days after the Date of Termination, Company
     shall pay Employee his full base salary through the Date of Termination at
     the greater of the rate in effect at the time the Change in Control
     occurred or the rate in effect when the Notice of Termination was given
     plus an amount equal to 100% of Employee's Target Annual Bonus (as defined
     below).

          (ii)      Company shall pay Employee a gross severance benefit equal
     to (i) 2 times Employee's Annual Base Salary at the greater of the rate in
     effect at the time the Change in Control occurred or the rate in effect
     when Notice of Termination was given plus (ii) 2 times Employee's Target
     Annual Bonus.  The severance benefit shall be paid in a lump sum within 30
     days of Employee's Termination.  Employee's "Annual Base Salary" shall mean
     the yearly salary rate established from time to time by Company as
     Employee's regular salary for the next succeeding twelve (12) month period,
     payable pursuant to the Company's payroll on a periodic basis and
     Employee's "Target Annual Bonus" shall mean the maximum available normal
     bonus Employee could earn under Company's bonus program for the year in
     which his Date of Termination occurs.

          (iii)     Any outstanding options to purchase stock of Company held by
     Employee shall immediately vest and become exercisable in full in
     accordance with their terms and the provisions of the Company's 1994 Stock
     Incentive Plan and 1996 Incentive Stock Plan and any other stock option
     plan or arrangement of the Company.

          (iv)      The restrictions on any shares of restricted stock held by
     Employee which have not yet terminated will terminate immediately.

          (v)       Company shall pay the costs of a reasonable outplacement
     service until Employee is employed on a full time basis.



          (vi)      For all purposes of Employee's participation in the
     Company's Deferred Compensation Plan (the "Plan"):  (a) the definition of
     Change in Control contained in this Agreement shall govern and be deemed to
     be the definition of "Change in Control" applicable to the Plan,
     notwithstanding any provisions of the Plan, including Section 1.17, to the
     contrary, and (b) the provisions of Section 3.9 (d) of the Plan and any
     similar successor provisions shall not be applicable.

          (vii)     Until the earlier of the second anniversary of the
     Termination or the date on which Employee becomes employed by a new
     employer, Company shall, at its expense, provide Employee and Employee's
     family members with medical, dental, life insurance, disability and
     accidental death and dismemberment benefits at the highest level provided
     to Employee and Employee's family members during the period beginning
     immediately prior to the Change of Control and ending on the Date of
     Termination, PROVIDED, HOWEVER, that if Employee become employed by a new
     employer which maintains a major medical plan that either (i) does not
     cover Employee and Employee's family members with respect to a pre-existing
     condition which was covered under the Company's major medical plan, or (ii)
     does not cover Employee and Employee's family members for a designated
     waiting period, Employee's coverage under the Company's major medical plan
     shall continue (but shall be limited in the event of noncoverage due to a
     preexisting condition, to the preexisting condition itself) until the
     earlier of the end of the applicable period of noncoverage under the new
     employer's plan or the second anniversary of the Date of Termination.

     3.   EXCISE TAX 280G GROSS UP.  In the event it shall be determined
that any payment or benefit provided under Paragraph 2(c) above together with
any other payments or benefits Employee is entitled to receive by reason of his
termination (a "Payment") would be subject to the excise tax imposed by Section
4999 of the Internal Revenue Code of 1986 ("Code"), or any interest or penalties
are incurred by Employee with respect to such excise tax (such excise tax,
together with any such interest and penalties, hereinafter collectively referred
to as the "Excise Tax"), Employee shall be entitled to receive an additional
payment (a "Gross-Up Payment") in an amount such that after payment by Employee
of all taxes (including any interest or penalties imposed with respect to such
taxes), including, without limitation, any income taxes (and any interest and
penalties imposed with respect thereto) and Excise Tax imposed upon the Gross-Up
Payment, Employee retains an amount of the Gross-Up Payment equal to the Excise
Tax imposed upon the Payment.  Payment of the Gross-Up Payment shall be subject
to the following:

          (a)       Subject to paragraph 3(b) below, the determination of
     whether and when a Gross-Up Payment is required and the amount of such
     Gross-Up Payment shall be made by an accounting firm (the "Accounting
     Firm") selected by the Company from among the following:  Arthur Andersen &
     Co., KPMG Peat Marwick, Price Waterhouse Coopers, and Deloitte & Touche.
     The Company will notify Employee of the identity of the Accounting Firm
     within fifteen (15) business days of Employee's Termination and the
     Accounting Firm shall provide detailed supporting calculations to Company
     and Employee within thirty (30) business days of being requested by
     Employee to make a Gross-Up Payment determination.  If the Accounting Firm
     determines that a Gross-Up



     Payment is required, the Gross-Up Payment so determined shall be paid
     within five (5) days after the receipt of the Accounting Firm's
     determination.  If the Accounting Firm determines that no Excise Tax is
     payable by Employee, it shall so advise Employee in writing. The
     Accounting Firm's determinations shall be binding upon Company and
     Employee.  If, following the exhaustion of Company's remedies under
     paragraphs (b) and (c) below, Employee is required to pay an Excise Tax,
     the Accounting Firm shall make a determination of the amount of any
     underpayment in any previous Gross-Up Payment and any underpayment shall
     be paid promptly by Company to Employee.

          (b)       Employee shall notify Company in writing of any claim by the
     Internal Revenue Service that, if successful, would require Company to make
     a Gross-Up Payment.  Such notification shall be given as soon as
     practicable but no later than ten (10) business days after Employee is
     informed in writing of such claim and shall apprise Company of the nature
     of such claim and the date on which such claim is requested to be paid.
     Employee shall not pay such claim prior to the expiration of the thirty
     (30) day period following the date on which it give such notice to Company
     (or such shorter period ending on the date that any payment of taxes with
     respect to such claim is due).  If Company notifies Employee in writing
     prior to the expiration of such period that it desires to contest such
     claim, Employee shall (i) give Company any information reasonably requested
     by Company relating to such claim, (ii) take such action in connection with
     contesting such claim as Company shall reasonably request in writing,
     including, without limitation, accepting legal representation with respect
     to such claim by an attorney reasonably selected by Company, (iii)
     cooperate with Company in good faith in order to effectively contest such
     claim and (iv) permit Company to participate in any proceedings relating to
     such claim; provided, however, that Company shall bear and pay directly all
     costs and expenses (including additional interest and penalties) incurred
     in connection with such contest and shall indemnify and hold Employee
     harmless, on an after-tax basis, for any Excise Tax or income tax
     (including interest and penalties with respect hereto) imposed as a result
     of such representation and payment of costs and expenses.

          (c)       Without limitation on the foregoing provisions of this
     Section 3, Company shall control all proceedings taken in connection with
     contesting a claim by the Internal Revenue Service and, at its sole option,
     may pursue or forego any and all administrative appeals, proceedings,
     hearings and conferences with the taxing authority in respect of such claim
     and may, at its sole option either direct Employee to pay the tax claimed
     and sue for a refund or contest the claim in any permissible manner, and
     Employee agrees to prosecute such contest to a determination before any
     administrative tribunal, in a court of initial jurisdiction and in one or
     more appellate courts, as Company shall determine; provided, however, that
     if Company directs Employee to pay such claim and sue for a refund, Company
     shall advance the amount of such payment to Employee on an interest-free
     basis, and shall indemnify and hold Employee harmless, on an after-tax
     basis, from any Excise Tax or income tax (including interest or penalties
     with respect thereto) imposed with respect to such advance or with respect
     to any imputed income with respect to such advance; and provided, further
     that if Employee is required to extend the statute



     of limitations to enable Company to contest such claim, Employee may
     limit this extension solely to such contested amount.  Company's control
     of the contest shall be limited to issues with respect to which a
     Gross-Up Payment would be payable hereunder and Employee shall be
     entitled to settle or contest, as the case may be, any other issue
     raised by the Internal Revenue Service or any other taxing authority.

          (d)       If, after the receipt by Employee of an amount advanced by
     Company pursuant to paragraph 3(c) above, Employee becomes entitled to
     receive any refund with respect to such claim, Employee shall (subject to
     Company's complying with the requirements of paragraphs 3(b) and (c))
     promptly pay to Company the amount of such refund (together with any
     interest paid or credited thereon after taxes applicable thereto).

          (e)       If, after the receipt by Employee of any amount advanced by
     Company under paragraph 3(c), a determination is made that Employee shall
     not be entitled to any refund with respect to such claim and Company does
     not notify Employee in writing of its intent to contest such denial of
     refund prior to the expiration of thirty (30) days after such
     determination, then such advance shall be forgiven and shall not be
     required to be repaid and the amount of such advance shall offset, to the
     extent thereof, the amount of Gross-Up Payment required to be paid.

     4.   NON-SOLICITATION AND NON-COMPETITION.  In consideration for the
severance benefits called for under paragraph 2(c) and Section 3 above, Employee
agrees that during the 24-month period following his Date of Termination (the
"Severance Period"), Employee:

          (a)       will not, without the prior written consent of Company,
     alone or in association with others, solicit on behalf of Employee, or any
     other person, firm, corporation or entity, any employee of Company, or any
     of its operating divisions, subsidiaries or affiliates, for employment with
     a person, firm, corporation or entity which competes with Company, or any
     of its divisions, subsidiaries or affiliates.

          (b)       will not, without the prior written consent of Company,
     directly or indirectly, engage or invest in, counsel or advise or be
     employed by any other person, firm, corporation or entity engaged in or
     conducting business which is the same as, or competing with, the business
     being conducted by Company, or any of its operating divisions, subsidiaries
     or affiliates, in any area or territory in which Company, or such operating
     divisions, subsidiaries or affiliates, shall be conducting business during
     the Severance Period.  Notwithstanding the foregoing, Employee shall be
     entitled to passively own not more than four and nine-tenths percent (4.9%)
     of any publicly held entity engaged in any business in which Company, or
     any of its operating divisions, subsidiaries or affiliates, shall be
     engaged during said period.

Should Employee fail to comply with the non-solicitation and/or non-competition
restrictions contained in this Section 4, this Agreement shall immediately
terminate and Employee shall forfeit any remaining unpaid benefits under this
Agreement.



     5.   OTHER EMPLOYMENT.  Employee shall not be required to mitigate the
amount of any payment or benefit provided for under this Agreement by seeking
other employment or otherwise nor shall the amount of any payment or benefit
provided for in this Agreement be reduced by any compensation earned by Employee
as a result of other employment.  Payment to Employee pursuant to this Agreement
shall constitute the entire obligation of Company for severance pay and full
settlement of any claim for severance pay under law or in equity that Employee
might otherwise assert against Company or any of its employees, officers or
directors on account of Employee's termination.

     6.   CHANGE IN CONTROL.  For purposes of this Agreement a "Change in
Control" shall have occurred if:

          (a)       any "Person" (as such term is used in Section 13(d) and
     14(d) of the Securities Exchange Act of 1934, as amended ("Exchange Act"))
     other than Company, any corporation owned, directly or indirectly, by the
     stockholders of Company in substantially the same proportions as their
     ownership of stock of Company, and any trustee or other fiduciary holding
     securities under a Company employee benefit plan or such proportionately
     owned corporation, becomes the "beneficial owner" (as defined in rule 13d-3
     under the Exchange Act), directly or indirectly, of securities of Company
     representing 20% or more of the combined voting power of Company's then
     outstanding securities;

          (b)       during any period of not more than 24 months, individuals
     who at the beginning of such period constitute the Board of Directors of
     the Company, and any new director (other than a director designated by a
     Person who has entered into an agreement with Company to effect a
     transaction described in paragraph (a), (c), or (d) of this Section 6)
     whose election by the board or nomination for election by the Company's
     stockholders was approved by a vote of at least two-thirds of the directs
     then still in office who either were directors at the beginning of the
     period or whose election or nomination for election was previously so
     approved, cease for any reason to constitute at least a majority thereof;

          (c)       the stockholders of Company approve a merger or
     consolidation of Company with any other corporation, other than (i) a
     merger or consolidation which would result in the voting securities of
     Company outstanding immediately prior thereto continuing to represent
     (either by remaining outstanding or by being converted into voting
     securities of the surviving entity) more than 60% of the combined voting
     power of the voting securities of the Company or such surviving entity
     outstanding immediately after such merger or consolidation, or (ii) a
     merger or consolidation effected to implement a recapitalization of Company
     (or similar transaction) in which no Person acquires more than 20% of the
     combined voting power of Company's then outstanding securities; or

          (d)       the stockholders of Company approve a plan of compete
     liquidation of Company or an agreement for sale or disposition by Company
     of all or substantially all of its assets (or any transaction having a
     similar effect).



Company may also determine, in its discretion, that a sale of a substantial
portion of its assets or one of its businesses constitutes a "Change of Control"
with respect to Employee if Employee is employed in the affected operation.

     7.   TERMINATIONS FOR CAUSE AND GOOD REASON.  Employee will be
considered to have been terminated for "Cause" if the termination is by reason
of Employee willfully engaging in conduct demonstrably and materially injurious
to the Company, Employee being convicted of or pleading guilty or nolo contendre
to a crime involving moral turpitude or Employee's willful and continued failure
for a significant period of time to perform Employee's duties after a demand for
substantial performance has been delivered to Employee by the Board of Directors
of Company which demand specifically identifies the manner in which the Boar
believes that Employee has not substantially performed his duties.  Employee's
termination shall be considered to have been for "Good Reason" if Employee's
termination is by reason of the occurrence of any of the following events within
24 moths following a Change in Control without Employee's express written
consent:

          (a)       any change in Employee's authorities, duties,
     responsibilities (including reporting responsibilities) or performance
     criteria or objectives or a change of more than 20 miles in Employee's
     place of employment which, in Employee's judgment, represents an adverse
     change; the assignment to Employee of any duties or work responsibilities
     which, in his reasonable judgment, are inconsistent with such authorities
     or responsibilities; or any removal of Employee from, or failure to
     reappoint or reelect him to any of such positions, except if any such
     changes are because of disability, retirement or Cause;

          (b)       a reduction in or failure to pay any portion of Employee's
     Annual Base Salary as in effect on the date of the Change in Control or as
     the same may be increased from time to time thereafter;

          (c)       the failure by Company to provide Employee with compensation
     and benefits (including, without limitation, incentive, bonus and other
     compensation plans and any vacation, medical, hospitalization, life
     insurance, dental or disability benefit plan), or cash compensation in lieu
     thereof, which are, in the aggregate, no less favorable than those provided
     by Company to Employee immediately prior to the occurrence of the Change in
     Control;

          (d)       any breach by Company of any provision of this Agreement;
          and

          (e)       the failure of Company to obtain a satisfactory agreement
     from any successor or assign of Company to assume and agree to perform this
     Agreement, as required in Section 9 of this Agreement.

Employee's continued employment after the expiration of six months from any
action which would constitute Good Reason under paragraph 7(a) above shall
constitute a waiver of rights with respect to such action constituting Good
Reason under this Agreement.



     8.   NOTICE OF TERMINATION.  Any purported termination of employment
by Company or by Employee shall be communicated by a written Notice of
Termination to the other party which notice is given in accordance with Section
11 of this Agreement.  No termination shall be effective without such a Notice
of Termination.  The Notice of Termination shall set forth in reasonable detail
the facts and circumstances claimed to provide a basis for termination of
Employee's employment and shall specify the Date of Termination.  The "Date of
Termination" shall mean the date specified in the Notice of Termination provided
that in no case shall the date be less than thirty (30) days or more than sixty
(60) days after the date of Notice of Termination is given.  If within thirty
(30) days after any Notice of Termination is given the party receiving such
Notice of Termination notifies the other party that a dispute exists concerning
the termination, the Date of Termination shall be the date on which the dispute
is finally determined wither by mutual written agreement of the parties, or by
the final judgment, order or decree of a court of competent jurisdiction (the
time for appeal therefrom having expired and no appeal having been taken).

     9.   SUCCESSORS.  Company will require any successor or assign
(whether direct or indirect, by purchase, merger, consolidation or otherwise)
to all or substantially all of the business and/or assets of Company to
expressly assume and agree to perform this Agreement in the same manner and
to the same extent Company would be required to perform if no such succession
or assignment had taken place.  As used in this Agreement, "Company" shall
include any successor or assign to its business and/or assets which assumes
and agrees to perform this Agreement by operation of law, or otherwise.  This
Agreement shall inure to the benefit of and be enforceable by Employee's
personal and legal representatives, executors, administrators, successors,
heirs, distributees, devisees and legatees.  If Employee should die while any
amounts would still be payable to him hereunder if he had continued to live,
all such amounts, unless otherwise provided herein, shall be paid in
accordance with the terms of this Agreement to Employee's named beneficiary
and if there is no such named beneficiary, to Employee's estate in a lump sum.

     10.  FEES AND EXPENSES.  Company shall pay all reasonable legal fees
and related expenses (including the reasonable costs of experts, evidence and
counsel), when and as incurred by Employee, as a result of contesting or
disputing any termination of employment of Employee following a Change in
Control whether or not such contest or dispute is resolved in Employee's favor
but only if Employee was seeking in good faith to obtain or enforce any right or
benefit provided by this Agreement or by any other plan or arrangement
maintained by the Company under with Employee is or may be entitled to receive
benefits.

     11.  NOTICE.  Any notice or other communication provided for or
required by this Agreement shall be in writing and shall be deemed to have been
duly given when personally delivered or sent by certified mail, return receipt
requested, postage prepaid, addressed to the respective addresses last given by
each party to the other or to such other address as either party may have
furnished to the other in writing.



     12.  MODIFICATIONS, WAIVERS AND SURVIVAL OF OBLIGATIONS.  No provision
of this Agreement may be modified, waived or discharged unless such
modification, waiver or discharge is agreed to in writing and signed by Employee
and Company.  A waiver of any condition or provision of this Agreement shall be
limited to the terms an conditions of such waiver and shall not be construed as
a waiver of any similar or dissimilar provisions or conditions at any time.  The
obligations of Company under Sections 2 and 3 shall survive the expiration of
the term of this Agreement.

     13.  CLAIMS PROCEDURE.  Any claim for benefits under this Agreement by
Employee shall be made in writing.

     14.  GOVERNING LAW.  The laws of Illinois shall be controlling in all
matters relating to this Agreement to the extent not preempted by ERISA.

     15.  SEVERABILITY.  The provisions of this Agreement shall be deemed
severable and the invalidity or unenforceability of any provision shall not
affect the validity or enforceability of the other provisions hereof.

     16.  ENTIRE AGREEMENT.  The Agreement constitutes the entire agreement
between the parties hereto and supersedes all prior agreement, understandings
and arrangements, oral or written, between the parties hereto with respect to
the subject matter hereof.

     17.  ACTION BY COMPANY.  Any action required of or permitted by
Company under this Agreement shall be by resolution of its Board of Directors,
by resolution of a duly authorized committee of its Board of Directors, or by a
person or persons authorized by resolutions of its Board of Directors or such
committee.

     18.  COUNTERPARTS.  This Agreement may be executed in several
counterparts, each of which shall be deemed to be an original but all of which
together will constitute one and the same instrument.

     19.  NON-EXCLUSIVITY OF RIGHTS.  Nothing in this Agreement shall
prevent or limit Employee's continuing or future participation in any benefit,
bonus, incentive or other plan or program provide by Company and for which
Employee may qualify, nor shall anything herein limit or reduce such rights as
Employee may have under any other agreements with Company.  Amounts which are
vested benefits or which Employee is otherwise entitled to receive under any
plan or program of Company shall be payable in accordance with such plan or
program, except as explicitly modified by this Agreement.

                                   McWHORTER TECHNOLOGIES, INC.

                                   By:  /s/ Jeffrey M. Nodland
                                      ------------------------
                                   Its:  President and Chief Executive Officer

                                        /s/ Warren Grayson
                                        ------------------
                                             Employee