×

Low surface energy liner of perfluoropolyether

  • US 4,472,480 A
  • Filed: 07/02/1982
  • Issued: 09/18/1984
  • Est. Priority Date: 07/02/1982
  • Status: Expired due to Term
First Claim
Patent Images

1. A substrate having an adherent, cohesive liner of low surface energy, 5 to 500 nanometers in thickness, prepared from monomer polymerized in situ on said substrate in the form of a coating, and comprising an insoluble addition polymer which comprises a plurality of perfluoropolyether segments of the formula


  • space="preserve" listing-type="equation">--CF.sub.2 O(CF.sub.2 CF.sub.2 O).sub.m (CF.sub.2 O).sub.n CF.sub.2 --
where m and n denote randomly distributed repeating units and the ratio m/n is 0.2/1 to 5/1, each said segment having a number average molecular weight of 800 to 10,000, said segments being at least 75 percent of the weight of said liner.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×