Modified organopolysiloxane compositions

Details Modified organopolysiloxane compositions Modified organopolysiloxane compositions

1978-04-14

1979-10-23

Marquis, Melvyn I.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

20415913, 20415922, 2604482E, 2604482Q, 528 15, 528 25, 528 31, 528 32, 528 33, 528 43, 526279, 525477, C08L 4304

Patent

active

041721012

ABSTRACT:
Modified organopolysiloxane compositions containing in situ generated particulate matter and a method for preparing the same which comprises polymerizing organic monomers having aliphatic unsaturation in the presence of vinyl containing organopolysiloxanes and free radical initiators at an elevated temperature to form a composition in which one or more of the organopolysiloxane molecules have organic groups grafted thereto through a carbon-to-carbon linkage. The resultant composition may be cured to an elastomeric solid by combining the composition obtained from the polymerization with organosilicon compounds having an average of more than two hydrogen atoms per molecule and a catalyst which promotes the addition of SiH groups to vinyl groups.

REFERENCES:
patent: 2820798 (1958-01-01), Bailey et al.
patent: 2928806 (1960-03-01), Bailey et al.
patent: 3663649 (1972-05-01), Wheeler, Jr.
patent: 3723497 (1973-03-01), Baney
patent: 3808287 (1974-04-01), Thomas
patent: 3829529 (1974-08-01), Lengnick
patent: 3950300 (1976-04-01), Hittmair et al.
patent: 4014851 (1977-03-01), Bluestein

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