Easily crystallizable polyphenylene sulfide copolymer and prepar

Details Easily crystallizable polyphenylene sulfide copolymer and prepar Easily crystallizable polyphenylene sulfide copolymer and prepar

1990-10-11

1992-06-09

Schofer, Joseph L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253339, 525535, 528388, C08G 7514, C08G 7516

Patent

active

051208040

ABSTRACT:
There are disclosed a class of halogen-ended polyalkylene glycols and halogen-ended polyolefins (II) which are copolymerizable with polyarylene sulfides or sulfone-based polymers. These halogen-ended polymers may be readily copolymerized with polyarylene sulfides or sulfone-based polymers to provide polyphenylene sulfide copolymers (I) exhibiting increased crystallization speeds. These high crystallization speeds enable the copolymers to be molded in a low-temperature mold, for example, at 100.degree. C. or less, while providing fully crystallized moldings having excellent heat resistance properties.

REFERENCES:
patent: 4355059 (1982-10-01), Blackwell
patent: 4451607 (1984-05-01), Garcia
patent: 4888390 (1989-12-01), Liang

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