Flame retardant organopolysiloxane-polycarbonate graft copolymer

Details Flame retardant organopolysiloxane-polycarbonate graft copolymer Flame retardant organopolysiloxane-polycarbonate graft copolymer

1990-08-27

1991-08-13

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 26, 528 31, 528 25, 528 29, C08G 7706

Patent

active

050397729

ABSTRACT:
Flame retardant graft organopolysiloxane-polycarbonate copolymers are provided which can be made by effecting addition between a silicon-hydride siloxane and an aliphatically unsaturated substituted bisphenol followed by phosgenation of the resulting adduct. Alternatively, direct addition of the silicon-hydride siloxane onto an aliphatically unsaturated substituted polycarbonate backbone also can be effected.

REFERENCES:
patent: 3450736 (1969-06-01), DeMonterey
patent: 3781378 (1973-12-01), Kantor
patent: 4613641 (1986-09-01), Haubennestel et al.
patent: 4748225 (1988-05-01), Yoshioka et al.
patent: 4839443 (1989-06-01), Akutsu et al.
patent: 4945148 (1990-07-01), Rich et al.

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