Exhibit 3(a)(1) CERTIFICATE OF AMENDMENT OF CERTIFICATE OF INCORPORATION CHEMICAL FABRICS CORPORATION, a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware, DOES HEREBY CERTIFY: FIRST: That by vote of the Board of Directors of Chemical Fabrics Corporation, at a duly called Regular Meeting of the Board, a resolution was duly adopted setting forth a proposed amendment to the Certificate of Incorporation of said Corporation and directing the holders of Common Stock of said Corporation to consider said amendment at the Annual Meeting of Stockholders. The resolution setting forth the proposed amendment is as follows: RESOLVED, That it is deemed advisable and in the best interest of the Corporation to amend Article FIRST of its Certificate of Incorporation (as previously amended) to read in its entirety as follows: "The name of the Corporation is CHEMFAB CORPORATION." RESOLVED, That the proposed amendment to the Corporation's Certificate of Incorporation as set forth in the immediately preceding resolution shall be submitted to the shareholders of the Corporation for their consideration and approval at the Corporation's 1991 Annual Meeting, and that, upon approval by the holders of a majority of the shares of Common Stock of the Corporation issued and outstanding as of the record date for such meeting, the Corporation be and it hereby is authorized and directed to amend its Certificate of Incorporation as set forth in the immediately preceding resolution, and the officers of the Corporation be and they hereby are authorized and directed to execute and deliver any and all documents and certificates deemed necessary to effectuate the proposed amendment set forth above, including a Certificate of Amendment to the Certificate of Incorporation for filing with the Secretary of State of the State of Delaware. SECOND: That thereafter at the Annual Meeting of Stockholders, pursuant to said resolution of the Board of Directors, by vote of the holders of record of at least a majority of the issued and outstanding shares of Common Stock, par value $.10 per share, of said corporation, representing not less than the minimum number of votes necessary to authorize and take the actions set forth therein, said amendment was duly adopted. THIRD: That said amendment was duly adopted in accordance with the provisions of Section 242 of the General Corporation Law of the State of Delaware. IN WITNESS WHEREOF, Chemical Fabrics Corporation has caused this certificate to be signed by Duane C. Montopoli, its President, and attested by William H. Everett, its Secretary, this 31st day of October, 1991. CHEMICAL FABRICS CORPORATION By: /s/ Duane C. Montopoli --------------------------- President Attest: /s/ William H. Everett - ------------------------- Secretary