Halophenyl ester flame retardants for polyphenylene ether resins

Details Halophenyl ester flame retardants for polyphenylene ether resins Halophenyl ester flame retardants for polyphenylene ether resins

1988-03-25

1990-05-22

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...

524412, C08K 510, C08K 511, C08K 512

Patent

active

049278738

ABSTRACT:
Flame retardancy of polyphenylene ether resins is increased by blending with the resin a flame retarding amount of a halophenyl hydrocarbyl ester. The ester is preferably the reaction production of a halogenated phenol, preferably a bromophenol, and a hydrocarbyl acid, acid chloride or acid anhydride. 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 halophenyl esters are also effective as processing aids in improving the flowability and moldability of the polyphenylene ether resins during melt processing.

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