Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1990-03-29
1994-07-19
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525390, 525537, 518388, C08F28300
Patent
active
053310640
ABSTRACT:
Graft copolymers of polybenzazole and poly(phenylene sulfide) are synthesized by the reaction of terephthalic acid and 4,6-diaminoresorcinol with 2-(polyphenylene sulfide)terephthalic acid. The resulting graft copolymer can be cross-linked by heating to provide a cross-linked product having improved thermal stability, acid resistance, and compressive strength.
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DeVilbiss, III Thomas A.
So Ying H.
Bleutge John C.
Lee Helen F.
The Dow Chemical Company
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