Preparation of low color copoly(arylene sulfide) by heating copo

Details Preparation of low color copoly(arylene sulfide) by heating copo Preparation of low color copoly(arylene sulfide) by heating copo

1989-05-11

1990-07-31

Anderson, Harold D.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528388, 528389, 528481, C08G 7516

Patent

active

049451553

ABSTRACT:
A process comprising heating for a sufficient period of time and at a temperature in the range of the glass transition temperature of the polymer to 5 degrees C below the melting point of the polymer, a solid, comminuted, copoly(arylene sulfide) prepared by reacting at a polymer producing temperature a mixture of a diiodoaromatic compound and elemental sulfur which contains less than 0.05 weight percent carbon, the copoly(arylene sulfide) corresponding to the structure

REFERENCES:
patent: 3354129 (1967-11-01), Edmond et al.
patent: 4098776 (1978-07-01), Tieszen et al.
patent: 4786713 (1988-11-01), Rule et al.

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