Process for preparation of rubber laminate

Details Process for preparation of rubber laminate Process for preparation of rubber laminate

1989-06-22

1990-12-04

Gallagher, John J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

15624413, 428 368, 428 3691, 428413, 523451, B32B 3126

Patent

active

049751395

ABSTRACT:
Disclosed is a process for the preparation of a rubber laminate, which comprises bringing an uncured composition comprising a fluororubber and a metal oxide incorporated therein into contact with an uncured composition comprising an epoxy group-containing acrylate rubber and a phosphonium salt of the following general formula incorporated therein: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are selected from the group consisting of hydrocarbon groups having 1 to 20 carbon atoms, secondary and tertiary amino groups substituted with a hydrocarbon group having 1 to 20 carbon atoms and fluoroalkyl groups having 1 to 20 carbon atoms, with the proviso that the case where all of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are secondary or tertiary amino groups or fluoroalkyl groups is excluded, and R.sub.5 stands for a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, and curing them.

REFERENCES:
patent: 4343861 (1982-08-01), Stivers

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