Flame retardant polyphenylene ether-polystyrene blends of increa

Details Flame retardant polyphenylene ether-polystyrene blends of increa Flame retardant polyphenylene ether-polystyrene blends of increa

1984-11-28

1986-11-25

Kight, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524141, 524497, 524503, 524508, 524540, 524847, 525 92, 525151, C08K 552

Patent

active

046249796

ABSTRACT:
A method for increasing the heat distortion temperature of certain blends of polyphenylene ether resin and styrene polymers is described in which an admixture is formed of a polyphenylene ether resin and a flame retardant copolymer of styrene and up to 50 percent dibromostyrene. The resulting compositions can be formulated to include one or more additional ingredients and are moldable into articles characterized by good flame retardancy and light stability, as well as a higher heat distortion temperature compared with articles formed from corresponding blends using homopolystyrene or styrene-bromostyrene copolymer.

REFERENCES:
patent: 3809729 (1974-05-01), Reinhard
patent: 3816562 (1974-06-01), Holoch
patent: 4077934 (1978-03-01), Lee, Jr.

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