Method for preparing a finely divided, free flowing organosiloxa

Details Method for preparing a finely divided, free flowing organosiloxa Method for preparing a finely divided, free flowing organosiloxa

1995-01-03

1996-01-23

Marquis, Melvyn I.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523213, C08K 906

Patent

active

054865514

ABSTRACT:
The compression set values of cured elastomers prepared from finely divided organosiloxane elastomer bases are reduced by treating the base with a silane or disilazane wherein the silicon atoms are bonded to one hydrolyzable group and three hydrocarbon radicals that are free of ethylenic unsaturation. The base is maintained in a fluidized state during this treatment.

REFERENCES:
patent: 3635743 (1972-01-01), Smith
patent: 3824208 (1974-07-01), Link et al.
patent: 4785047 (1988-11-01), Jensen
patent: 4882368 (1989-11-01), Elias et al.
patent: 4898898 (1990-02-01), Fitzgerald et al.
patent: 5008305 (1991-04-01), Kennan et al.
patent: 5081172 (1992-01-01), Chaffee et al.
patent: 5153238 (1992-10-01), Bilgrien et al.
"Reinforcement of Silicone Rubber by Particulate Silica" Boostra, Cochrane, Dannenberg; Cabot Corporation, Billerica, Mass. pp. 29-39, Jan. 1976.

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