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EP0194534A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Textile or porous material impregnated with a fluorine-containing copolymer

Assignee: Daikin Industries Ltd
•
Filing: 1986-02-28
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Granted: —
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Expires: 2006-02-28
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Abstract

Abstract @ An impregnated material comprising an organic or inorganic material selected from the group consisting of a woven fabric, a non-woven fabric and an open cell porous material which is impregnated with a copolymer which comprises 50 to 95 % by mole of repeating units derived from tetrafluoroethylene and 5 to 50 % by mole of repeating units derived from perfluoroalkyl vinyl ether of the formula:wherein R, is a C<sub>1</sub>-C<sub>6</sub> perfluoroalkyl group or a group of the formula.wherein R, is the same as defined above, X is a fluorine atom or a trifluoromethyl group and n is an integer of 1 to 10, which has good chemical, corrosion, solvent and oil resistance as well as water- and oil-repellence.

Inventors

  • 👤 Shoji Kawachi
  • 👤 Masayusa Tomoda
  • 👤 Yutaka Ueta
  • 👤 Masahiko Oka

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-29 12:12
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/244; D06M15/256; D06N; D06N3/00; D06N3/04; D06N3/047; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172; Y10T442/2262; Y10T442/227; Y10T442/2549

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 111 words
- 1. An impregnated material comprising an organic or inorganic material selected from the group consisting of a woven fabric, a non-woven fabric and an open cell porous material which is impregnated with a copolymer which comprises 50 to 95 % by mole of repeating units derived from tetrafluoroethylene and 5 to 50 % by mole of repeating units derived from perfluoroalkyl vinyl ether of the formula: wherein R f is a C 1 -C 6 perfluoroalkyl group or a group of the formula: wherein R f is the same as defined above, X is a fluorine atom or a trifluoromethyl group and n is an integer of 1 to 10.
Claim 2
Dependent Claim 21 words
An impregnated material according to claim 1, wherein the copolymer further comprises at least one of other fluorine-containing ethylenically unsaturated comonomer.
Claim 3
Dependent Claim 33 words
An impregnated material according to claim 2, wherein the content of other comonomer is 0.1 to 20 % by mole based on the total mole of tetrafluoroethylene and the perfluoroalkyl vinyl ether (I).
Claim 4
Dependent Claim 40 words
An impregnated material according to claim 2, wherein at least one of other comonomer is a fluorine-containing vinyl ether of the formula: wherein n is the same as defined above, and Y is an iodine atom or a bromine atom.

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