Process for recycling polyarylene sulfides

Details Process for recycling polyarylene sulfides Process for recycling polyarylene sulfides

1999-04-20

2000-05-30

Foelak, Morton

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

Synthetic resins

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

526 67, 526 68, 526 69, 528491, 528493, 528497, C08J 1104, C08J 600, C08F 200

Patent

active

060691816

ABSTRACT:
The present invention relates to a process for obtaining polyarylene sulfide from polyarylene sulfide-containing material. For this purpose, the polyarylene sulfide-containing material is treated with a solvent in which it dissolves, and is subsequently reprecipitated. The invention also relates to the purification of polyarylene sulfide-containing material by separating off extraneous substances, to polyphenylene sulfide particles having a specific surface area of at least 80 m.sup.2 /g and to their use as filter material.

REFERENCES:
patent: 5039788 (1991-08-01), Bobsein

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