Curable organopolysiloxane compositions with improved adhesion

Details Curable organopolysiloxane compositions with improved adhesion Curable organopolysiloxane compositions with improved adhesion

1986-12-08

1988-03-22

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524264, 524265, 524730, 528 15, 528 31, 528 32, 525478, C08L 8304

Patent

active

047329327

ABSTRACT:
Organopolysiloxane compositions comprising a polyorganosiloxane having olefinic unsaturation, an organohydrogen polysiloxane and a catalyst, exhibit improved adhesion to a number of substrates when it also comprises an organosilane of the general formula R'(RO).sub.2 SiR", wherein R denotes a monovalent hydrocarbon group, R' denotes an aliphatically unsaturated hydrocarbon or hydrocarbonoxy group and R" denotes an epoxy functional group. The organopolysiloxane compositions also exhibit reduced thixotropy over prior art compositions especially when a reinforcing silica filler is also present.

REFERENCES:
patent: 4426240 (1984-01-01), Louis et al.
patent: 4605722 (1986-08-01), Suzuki

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