Halogenated polyester flame retardants for polyphenylene ether,

Details Halogenated polyester flame retardants for polyphenylene ether, Halogenated polyester flame retardants for polyphenylene ether,

1989-11-06

1991-08-27

Hoke, Veronica P.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524410, 524411, 524412, C08K 512

Patent

active

050433741

ABSTRACT:
Flame retardancy of polyphenylene ether, polyolefin and polyethylene terphthalate resins and resin blends is increased by blending with the resin a flame retarding amount of a halogenated polyester which is the reaction product of a halogenated phthalic acid or phthalic anhydride with an epoxide or hydroxy compound containing at least two hydroxyl groups. The polyphenylene ether resin may include homopolymers or copolymers of polyphenylene ethers or blends of polyphenylene ethers with vinyl aromatic resins such as styrene polymers and copolymers. The flame retarding polyesters are also effective as processing aids in improving the flowability and moldability of the resins during melt processing.

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