Method of manufacturing organopolysiloxane having terminal alken

Details Method of manufacturing organopolysiloxane having terminal alken Method of manufacturing organopolysiloxane having terminal alken

1988-08-31

1989-10-24

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

C07F 708

Patent

active

048763730

ABSTRACT:
Polymerizing cyclic trisiloxanes using as the polymerization initiator an alkali metal salt of an organosilane or organopolysiloxane having a terminal alkenyl group, followed by termination of the reaction, produces an organopolysiloxane having an alkenyl group on one end. These organopolysiloxanes are useful for making copolymers and as additives to siloxane elastomers.

REFERENCES:
patent: 3146251 (1964-08-01), Brown et al.
patent: 4611042 (1986-09-01), Rivers-Farrell et al.
patent: 4792596 (1988-12-01), Otilinger et al.

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