Method of producing silicone rubber compositions

Details Method of producing silicone rubber compositions Method of producing silicone rubber compositions

1994-08-31

1996-03-26

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 38, 525477, 523209, 523212, C08G 7704

Patent

active

055021468

ABSTRACT:
A method of producing a silicone rubber composition, comprising heating a mixture of an organopolysiloxane having a silanol group at both the ends of the molecular chain, a end blocking agent, such as a triorganosilanol, a silane or a siloxane having two dialkylaminosilyl groups in the molecule, and a reinforcing filler thereby carrying out chain lengthening and end blocking of said organopolysiloxane. According to this method, a silicone rubber composition whose low-molecular siloxane content is held down remarkably can be produced without consuming a large amount of energy for the mixing.

REFERENCES:
patent: 3766128 (1973-10-01), Brady et al.
patent: 3796686 (1974-03-01), Golitz et al.
patent: 4528353 (1985-07-01), Lucas et al.
patent: 4585849 (1986-04-01), Saykowski et al.
patent: 5140061 (1992-08-01), Feder

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