Halophenyl ester flame retardants for polyphenylene ether...

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

C - Chemistry, Metallurgy

08

K

400/5906, 400/83

C08K 5/10 (2006.01) C08K 5/105 (2006.01) C08L 71/12 (2006.01)

Patent

CA 1336635

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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