1,2-Polybutadiene compositions and cured flame retarded 1,2-poly

Details 1,2-Polybutadiene compositions and cured flame retarded 1,2-poly 1,2-Polybutadiene compositions and cured flame retarded 1,2-poly

1979-08-29

1981-05-19

Seccuro, Carman J.

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

Synthetic resins

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

525209, 525225, 525226, 525282, 525288, 525292, 525256, 525263, 525194, 525205, 525291, 525300, 525303, 525305, 525310, C08L 3316, C08L 900

Patent

active

042684331

ABSTRACT:
Flame retardation of 1,2-polybutadiene based upon the use of halogenated bisphenol bisacrylate reactive flame retardants, for example, 2,2-bis(4-methacryloyl-3,5-dibromophenyl)-propane. Flame retardancy performance of UL 94 V-0 or V-1 has been achieved without impairing desirable dielectric properties and heat resistance inherently possessed by 1,2-polybutadiene. If an aromatic bismaleimide modifier, for example, N,N'-4,4'-diphenylmethane bismaleimide, is jointly used, a thermal expansion coefficient less than a half of the thermal expansion coefficient of cured 1,2-polybutadiene can be achieved.

REFERENCES:
patent: 2925407 (1960-02-01), Goldberg
patent: 3153014 (1974-10-01), Fletcher et al.
patent: 3925275 (1975-12-01), Musashi et al.
patent: 4058658 (1977-11-01), Morgan et al.
patent: 4108943 (1978-08-01), Lee

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