Dynamically cured thermoplastic olefin polymers and process for

Details Dynamically cured thermoplastic olefin polymers and process for Dynamically cured thermoplastic olefin polymers and process for

1990-05-04

1991-09-24

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...

525 88, 525192, 525197, 525198, 525221, 525227, 525232, 525240, 525941, 524525, 524528, C08L 2326, C08L 2328, C08L 1502, C08L 2336, C08L 2516

Patent

active

050514776

ABSTRACT:
A dynamically vulcanized thermoplastic composition is provided which comprises a polymer blend of a polyolefin resin, a halogenated elastomeric copolymer, such as a halogenated butyl rubber, or a halogenated copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene, and a halogenated polyethylene. The composition has improved flame retarding properties. Additional flame retarding additives may be incorporated in the composition. The dynamically vulcanized thermoplastic composition is suitable for use in roofing sheets.

REFERENCES:
patent: 4130534 (1978-12-01), Coran et al.
patent: 4851468 (1989-07-01), Hazelton et al.
patent: 4910245 (1990-03-01), Flynn et al.
patent: 4978703 (1990-12-01), Ainsworth et al.

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