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Aqueous fluorine-containing rubber coating composition and article coated therewith

Assignee: Daikin Industries Ltd
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Filing: 1982-02-11
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Granted: —
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Expires: 2002-02-11
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Abstract

Abstract An aqueous fluorine-containing rubber coating composition comprising (a) fluorine-containing rubber, (b) fluorine-containing resin, (c) an aminosilane compound of the formula:wherein R is methyl or ethyl; X is a single bond or -(CH<sub>2</sub>)<sub>2</sub>-NH-, -CONH- or -(CH<sub>2</sub>)<sub>2</sub>-NH-(CH<sub>2</sub>)<sub>2</sub>-NH-; and n is 2 or 3, and (d) an aqueous liquid vehicle, the weight ratio of the component (a) and the component (b) being from 95 : 5 to 35 : 65, which makes the resultant coating film non-adherent and more lubricous.

Inventors

  • 👤 Tatsushiro Yoshimura
  • 👤 Tsutomu Terada
  • 👤 Shozo Nakayama

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-27 19:59
CPC Classifications
C; C09; C09D; C09D115/00; C09D115/02; C09D127/00; C09D127/02; C09D127/12; C08; C08K; C08K5/00; C08K5/54; C08K5/544; C08K7/00; C08K7/02; C08K7/04; C08L; C08L2205/00; C08L2205/02; C08L27/00; C08L27/02; C08L27/12

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 81 words
An queous fluorine-containing rubber coating composition comprising (a) fluorine-containing rubber, (b) fluorine-containing resin, (c) an aminosilane compound of the formula: wherein R is methyl or ethyl; X is a single bond or - (CH 2 ) 2 -NH-, -CONH- or -(CH 2 ) 2 -NH-(CH 2 ) 2 -NH-; and n is 2 or 3, and (d) an aqueous liquid vehicle, the weight ratio of the component (a) and the component (b) being from 95 : 5 to 35 : 65.
Claim 2
Dependent Claim 81 words
An queous fluorine-containing rubber coating composition comprising (a) fluorine-containing rubber, (b) fluorine-containing resin, (c) an aminosilane compound of the formula: wherein R is methyl or ethyl; X is a single bond or - (CH 2 ) 2 -NH-, -CONH- or -(CH 2 ) 2 -NH-(CH 2 ) 2 -NH-; and n is 2 or 3, and (d) an aqueous liquid vehicle, the weight ratio of the component (a) and the component (b) being from 95 : 5 to 35 : 65.
Claim 3
Dependent Claim 28 words
The coating composition according to claim 1 wherein the weight ratio of the aminosilane compound and the fluorine-containing rubber is from 1 : 100 to 30 : 100.
Claim 4
Dependent Claim 13 words
The coating composition according to claim 1 comprising additionally an inorganic fibrous material.
Claim 5
Dependent Claim 27 words
The coating composition according to claim 1 or 3 further comprising an amine compound having at least one terminal amino group directly attached to a hydrocarbon group.
Claim 6
Dependent Claim 20 words
The coating composition according to claim 1 or 4 wherein the amine compound has at least two terminal amino groups.
Claim 7
Dependent Claim 30 words
The coating composition according to claim 4 or 5 wherein the molar ratio of the aminosilane compound and the amine compound is from 1 : 99 to 90 : 10.
Claim 8
Dependent Claim 16 words
The coating composition according to claim 1 wherein the aminosilane compound is partly or completely prehydrolyzed.
Claim 9
Dependent Claim 23 words
The coating composition according to claim 3 wherein the inorganic fibrous material is glass fibers, carbon fibers, asbestos fibers or fibrous potassium titanate.
Claim 10
Dependent Claim 19 words
An article coated with the aqueous fluorine-containing rubber coating composition according to any one of claims 1 to 8.
Claim 11
Dependent Claim 10 words
The article according to claim 9 which is a gasket.
Claim 12
Dependent Claim 13 words
The article according to claim 10 wherein the gasket is a metal-made gasket.
Claim 13
Dependent Claim 14 words
The article according to claim 11 wherein the metal is iron, aluminum or copper.

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