EXHIBIT 32.1

CERTIFICATION BY CEO PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

     In connection with the special financial report pursuant to Rule 15d-2 under the Securities Exchange Act of 1934 of Viskase Companies, Inc. (the “Company”) for the year ended December 31, 2004, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Robert L. Weisman, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1.	the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2.	the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Robert L. Weisman

Robert L. Weisman

President and Chief Executive Officer

Date: April 6, 2005

     A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.