Process for producing polyphenylene ether composition containing

Details Process for producing polyphenylene ether composition containing Process for producing polyphenylene ether composition containing

1979-10-03

1981-10-06

Foelak, Morton

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 37M, 525 1, 525 4, 525132, 525152, 528212, C08L 7104

Patent

active

042934788

ABSTRACT:
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 ether 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.

REFERENCES:
patent: 3306874 (1967-02-01), Hay
patent: 3383435 (1968-05-01), Cizek
patent: 4011200 (1977-03-01), Yonemitsu et al.
patent: 4038343 (1977-07-01), Yonemitsu et al.

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