Releasing silicone composition and cured matter thereof

Details Releasing silicone composition and cured matter thereof Releasing silicone composition and cured matter thereof

1990-09-27

1992-03-10

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 31, 528 32, 528 41, C08G 7706

Patent

active

050950851

ABSTRACT:
A releasing silicone composition, which in cured form has from medium to high bond release strength, comprising 0.1 to 10 parts by weight of an organopolysiloxane of the formula ##STR1## wherein R.sup.1 is alkyl of 1-3 carbon atoms, or a phenyl group; each R.sup.2 is R.sup.1 or R.sup.3 ; R.sup.3 is C.sub.l H.sub.2l+1 COOCH.sub.2 CH.sub.2 CH.sub.2 -- in which l is an integer from 14-20; m is an integer from 50-200; and n is an integer from 0-20, in a silicone composition comprising 100 parts by weight of an organopolysiloxane which contains at least two vinyl groups bonded directly to silicon atoms, from 0.1 to 30 parts by weight of an organohydrogenpolysiloxane which contains at least two hydrogen atoms bonded directly to silicon atoms, and a platinum catalyst.

REFERENCES:
patent: 4384100 (1983-05-01), Takamizawa
patent: 4855378 (1989-08-01), Pradl et al.
patent: 4954597 (1990-09-01), Revis

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