Rubber-coated gasket

Details Rubber-coated gasket Rubber-coated gasket

1988-12-13

1990-09-11

Herbert, Thomas J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

277235B, 428324, 428325, 428332, 428339, 428463, 428465, B32B 516, B32B 1508

Patent

active

049562266

ABSTRACT:
A rubber-coated gasket and method of forming the same is provided wherein a rubber layer is formed on one or both sides of the metal sheet, the rubber layer being formed of nitrile rubber containing a flaky filler and/or an alkyl titanate. The rubber layer which preferably has a thickness of 10-300 micrometers is bonded with a primer based on phenolic resin to the metal sheet. The additives and the rubber render it difficult for anti-freeze to penetrate through the rubber layer. In addition, the phenolic resin in the primer forms an antifreeze-resistant network structure which maintains the integrity of adhesion between the metal substrate and the rubber layer even if the gasket is submerged in hot anti-freeze.

REFERENCES:
patent: 2957784 (1960-10-01), Schiefelbein
patent: 4210567 (1980-07-01), Kosters
patent: 4402518 (1983-09-01), Locacius
patent: 4477094 (1984-10-01), Tamamoto et al.
patent: 4617078 (1986-10-01), Takahashi et al.

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