×

Method of preparing a molded sealing composition for sealing against permeation of carbon dioxide gas

  • US 6,274,665 B2
  • Filed: 12/18/2000
  • Issued: 08/14/2001
  • Est. Priority Date: 10/31/1997
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of preparing a molded sealing composition for sealing against permeation of carbon dioxide gas, comprising the steps of:

  • (1) preparing a molding composition comprising a fluoro thermoplastic elastomer and a reinforcing filler having a particle size of not more than 100 nm;

    (2) molding said molding composition to obtain a vulcanized rubber composition; and

    (3) contacting said vulcanized rubber composition with carbon dioxide gas have carbon dioxide as a majority component to separate an air side from a carbon dioxide gas side.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×