Rubber laminates of fluororubber and nitrile rubber

Details Rubber laminates of fluororubber and nitrile rubber Rubber laminates of fluororubber and nitrile rubber

1988-04-06

1989-05-09

Seccuro, Carman J.

Stock material or miscellaneous articles

Composite

Of polyisocyanurate

428421, 5253263, 525340, 525194, B32B 2504, B32B 2514

Patent

active

048289230

ABSTRACT:
Disclosed is a process for the preparation of rubber laminates. According to this process, a rubber laminate having a high bonding strength can be obtained by contacting an uncured composition A comprising a fluororubber and a metal oxide with an uncured composition B comprising a nitrile group-containing polymer rubber and a phosphonium salt represented by the following general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each stand for a hydrocarbon residue having 1 to 20 carbon atoms, which may be substituted, with the proviso that up to three of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be a primary, secondary or tertiary amino group or a fluoroalkyl group, and R.sub.5 stands for a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, and curing the uncured compositions.

REFERENCES:
patent: 4048261 (1917-09-01), Starmer
patent: 4361608 (1982-11-01), Furukawa et al.
patent: 4489196 (1984-12-01), Schmiegel
patent: 4544708 (1985-10-01), Moggi et al.
patent: 4600651 (1986-07-01), Aufdermarsh et al.
patent: 4606952 (1986-08-01), Sugimoto et al.
patent: 4614779 (1986-09-01), Watanabe et al.
patent: 4742126 (1988-05-01), Moggi et al.
patent: 4748208 (1988-05-01), Kassahara et al.

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