EXHIBIT 4.6 EXECUTION COPY VISKASE COMPANIES, INC. REGISTRATION RIGHTS AGREEMENT Dated as of April 15, 2003 TABLE OF CONTENTS THIS TABLE OF CONTENTS IS NOT PART OF THE AGREEMENT TO WHICH IT IS ATTACHED BUT IS INSERTED FOR CONVENIENCE ONLY.Registration Rights Agreement • December 27th, 2004 • Viskase Companies Inc • Plastics products, nec • New York
Contract Type FiledDecember 27th, 2004 Company Industry Jurisdiction
Warrant AgentWarrant Agreement • December 27th, 2004 • Viskase Companies Inc • Plastics products, nec • New York
Contract Type FiledDecember 27th, 2004 Company Industry Jurisdiction
BETWEENEquity Registration Rights Agreement • December 27th, 2004 • Viskase Companies Inc • Plastics products, nec • New York
Contract Type FiledDecember 27th, 2004 Company Industry Jurisdiction