Polyphenylene oxide-recycled polystyrene composition and method

Details Polyphenylene oxide-recycled polystyrene composition and method Polyphenylene oxide-recycled polystyrene composition and method

1992-08-13

1993-04-06

Foelak, Morton

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

Synthetic resins

Process of treating scrap or waste product containing solid...

521 47, 521 81, 521139, C08J 1104

Patent

active

052004325

ABSTRACT:
A polymer composition comprises a melt compounded product of a polyphenylene oxide polymer and a recycled polystyrene material. The recycled polystyrene material exhibits a melt flow index greater than about 25 when devolatized by heating above its glass transition temperature. The polymer composition may be in various forms including extruded pellets, extruded foam, and expandable foam beads.

REFERENCES:
patent: 3070554 (1962-12-01), Nagle et al.
patent: 5118561 (1992-06-01), Gusawage et al.

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