Method for the preparation of silicone rubber

Details Method for the preparation of silicone rubber Method for the preparation of silicone rubber

1997-08-28

1999-07-20

Cain, Edward J.

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...

524492, 524494, C08K 300

Patent

active

059257091

ABSTRACT:
A silicone rubber is prepared from a silicone rubber compound comprising (A) an organopolysiloxane having an average degree of polymerization of at least 100, (B) a reinforcing silica filler, and (C) an organohydrogenpolysiloxane by mixing component (C) with components (A) and (B) and heating them at a temperature of at least 100.degree. C. to form the silicone rubber compound, adding an organic peroxide or a platinum group metal catalyst to the compound, and crosslinking the compound. The silicone rubber exhibits a minimal difference in physical properties between primary vulcanization and secondary vulcanization.

REFERENCES:
patent: 5118754 (1992-06-01), Miyakoshi et al.
patent: 5198171 (1993-03-01), Kasahara et al.
patent: 5563203 (1996-10-01), Yoshino et al.
patent: 5679727 (1997-10-01), Griffith et al.
European Search Report, EP 97 30 6663, Jan. 9, 1998.

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