Preparation of poly(arylene sulfide ketone) and poly(arylene sul

Details Preparation of poly(arylene sulfide ketone) and poly(arylene sul Preparation of poly(arylene sulfide ketone) and poly(arylene sul

1989-12-29

1991-03-26

Anderson, Harold D.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528226, 528388, 528499, C08G 7516, C08G 1600

Patent

active

050030426

ABSTRACT:
A process is provided for preparing a polymeric resin comprising the steps of: (a) preparing a first slurry, wherein the solid component thereof comprises a first particulate resin selected from the group consisting of poly(arlene sulfide ketone)s and poly(arylene sulfide diketone)s, and wherein the liquid component thereof comprises a polar organic compound; (b) substantially liquifying the first particulate resin to form a mixture comprising the substantially liquified first particulate resin and the polar organic compound; and (c) reducing the temperature of the mixture sufficiently to solidify the substantailly liquified resin and form a second slurry, wherein the solid component thereof comprises a second polymeric resin. The filterability of the slurry containing the second polymeric resin is superior to that of the first slurry.

REFERENCES:
patent: 4232142 (1980-11-01), Barr et al.
patent: 4361693 (1982-11-01), Jansons
patent: 4415729 (1983-11-01), Scoggins et al.
patent: 4730034 (1988-03-01), Nesheiwat et al.
patent: 4748231 (1988-05-01), Nesheiwat
patent: 4892929 (1990-01-01), Geibel et al.

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