Phenylene sulfide/biphenylene sulfide copolymer pipe

Details Phenylene sulfide/biphenylene sulfide copolymer pipe Phenylene sulfide/biphenylene sulfide copolymer pipe

1992-06-30

1996-11-12

Dodson, Shelley A.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 369, 138124, 138125, 138137, 138141, B29D 2300

Patent

active

055738230

ABSTRACT:
An improved pipe is produced from phenylene sulfide/biphenylene sulfide copolymers, The improved pipe has greater flexibility and ductility than pipe produced from normal PPS resin. Such pipe is produced by preparing a phenylene sulfide/biphenylene sulfide copolymer and forming the copolymer into essentially amorphous pipe by extrusion followed by rapid and uniform quench to avoid pipe crystallization, Also disclosed is a method wherein such amorphous pipe is oriented by subsequent die extrusion.

REFERENCES:
patent: 4490522 (1984-12-01), Kawabata et al.
patent: 4794161 (1988-12-01), Kato et al.
patent: 5151235 (1992-09-01), Reed
patent: 5268451 (1993-12-01), Iizuka et al.

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