Process for preparing self-curable alkenyl hydride siloxane copo

Details Process for preparing self-curable alkenyl hydride siloxane copo Process for preparing self-curable alkenyl hydride siloxane copo

1996-10-24

1998-05-19

Marquis, Melvyn I.

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...

524588, 528 15, 528 31, 428447, C08J 324

Patent

active

057537518

ABSTRACT:
A sequential catalysis of the ring opening polymerization of cyclic organosiloxanes using a base catalyst that can be neutralized by a subsequent redistribution and condensation Lewis acid catalyst, preferably a phosphonitrilic compound, permits the rapid synthesis of functionalized and poly-functionalized silicone copolymers such as alkenyl hydride copolymers, a new composition of matter, which is a one component curable silicone by means of hydrosilylation or peroxide initiated free radical polymerization. The alkenyl hydride copolymer is formulated into a curable composition, emulsified and coated onto an automobile airbag and subsequently cured.

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