Flame-retarded, conductive compositions which include polyphenyl

Details Flame-retarded, conductive compositions which include polyphenyl Flame-retarded, conductive compositions which include polyphenyl

1993-01-11

1994-03-15

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524141, 524449, 524494, 524496, C08J 510, C08K 552, C08L 7112

Patent

active

052946541

ABSTRACT:
Improved polyphenylene ether-based compositions are described, which also contain polystyrene; selected amounts of glass fibers and inorganic nonfibrous agents such as clay or mica; carbon fibers or metal-coated graphite fibers; and certain diphosphate- or polyphosphate-based flame retardant compositions. The compositions, which can be injection-molded, exhibit excellent electrical dissipation characteristics, as well as excellent flame retardancy (without cracking or "juicing"); heat distortion temperature characteristics; tensile yield; and flexural modulus. Specific methods for preparing such compositions also contribute to their enhanced performance. Furthermore, the compositions may be foamed

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