Process for producing polyphenylene ether composition...

Details Process for producing polyphenylene ether composition... Process for producing polyphenylene ether composition...

C - Chemistry, Metallurgy

08

J

400/3040, 400/63

C08J 3/22 (2006.01) C08J 3/20 (2006.01) C08K 3/00 (2006.01) C08L 25/04 (2006.01)

Patent

CA 1142672

Abstract of the Disclosure An improved method for dispersing an inorganic pigment uniformly in polyphenylene ether resins, A polyphenylene ether composition having an inorganic pigment uniformly dispersed therein is obtained by intimately mixing a polyphenylene ether resin and the inorganic pigment in a weight ratio of from 0.5.1 to 2:1 by a high-speed mixer to form a pre-blend, and then mixing the pre-blend intimately with a polyphenylene other in a conventional mixer such as an extruder. The pre- blend can also be uniformly dispersed in a mixture of the polyphenylene ether with polystyrene, a styrene/butadiene copolymer, a styrene/butadiene/acrylonitrile terpolymer, or a rubber-modified high impact polystyrene. -1-

337030

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