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Method for depositing a fluorocarbonsulfonic acid polymer on a support from a solution

  • US 4,661,411 A
  • Filed: 02/25/1986
  • Issued: 04/28/1987
  • Est. Priority Date: 02/25/1986
  • Status: Expired due to Fees
First Claim
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1. The method of supporting a fluorinated polymer having pendant chains containing sulfonic acid groups, on a support, comprising the steps:

  • (a) soaking a substrate with a solution that contains a fluorinated polymer having pendant chains containing sulfonic acid groups;

    (b) removing the solvent from the mixture;

    (c) heating the remaining composition to above the glass transition temperature of the polymer for a sufficient time to render the polymer insoluble.

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