Rubber-laminated material for gaskets

Details Rubber-laminated material for gaskets Rubber-laminated material for gaskets

1990-10-12

1992-10-13

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Composite

Of metal

428462, 428463, 428465, 428472, 428492, B32B 1508

Patent

active

051549778

ABSTRACT:
A rubber-laminated material for gaskets is disclosed in which a primer layer is formed on a one-surface or on each of opposite surfaces of a metal plate subjected to chemical conversion treatment and a rubber layer is laminated on said primer layer. The primer layer is composed of high-reactive xylene denatured phenol resin having an oxymethylene group or an acetal group and the rubber layer is composed of NBR rubber. A chromium sealing layer of a chromic (III) acid or a chromic (VI acid is formed on the chemical conversion treated surface coated with a phosphate.

REFERENCES:
patent: 2957784 (1960-10-01), Schiefelbein
patent: 4740427 (1988-04-01), Ochiumi et al.
patent: 4882215 (1989-11-01), Ushio et al.

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