Polyphenylene sulfide composition and method of producing the sa

Details Polyphenylene sulfide composition and method of producing the sa Polyphenylene sulfide composition and method of producing the sa

1988-12-02

1990-06-19

Anderson, Harold D.

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

Synthetic resins

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

524188, 524609, 528388, C08G 7514

Patent

active

049354736

ABSTRACT:
The present invention discloses a composition comprising a mixture containing 100 parts by weight of substantially linear polyphenylene sulfide which is treated with an aqueous solution of an acid or a salt of a strong acid and a weak base and which has not less than 70 mol % of a repeating unit of ##STR1## 0.05 to 5 parts by weight of at least one aminoalkoxysilane compound and, if necessary, 0.01 to 3 parts by weight of a releasing agent, the mixture being kneaded under heating at a temperature higher than the melting point of the polyphenylene sulfide, said composition exhibiting excellent impact strength and weld strength and providing molded product with small amount of flash generated during molding. The invention also discloses a composition which further comprises a fibrous reinforcing material and/or an inorganic powdered or granular filler, according to necessity, as well as disclosing a method of producing said composition.

REFERENCES:
patent: 4451601 (1984-05-01), Blackwell
patent: 4645826 (1987-02-01), Iizuka et al.

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