Polyarylene sulfide preparation method with dithionite

Details Polyarylene sulfide preparation method with dithionite Polyarylene sulfide preparation method with dithionite

1984-08-31

1986-08-12

Anderson, Harold D.

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

Synthetic resins

From sulfur-containing reactant

524419, 524609, 528381, 528389, C08G 7516

Patent

active

046057331

ABSTRACT:
A polyarylene sulfide is prepared in a reaction mixture containing a dihaloaromatic compound, a sulfur source, a polar organic compound and an alkali metal or alkaline earth metal dithionite. The presence of dithionite in the reaction mixture enables the production of polymer and products therefrom having a reduced Tmc and enhanced heat stability.

REFERENCES:
patent: 4059533 (1977-11-01), Watson
patent: 4424339 (1984-01-01), Idel
patent: 4501713 (1985-02-01), Wright
Nickless, Inorganic Sulphur Chemistry, 1968, pp. 519-521.
Nordell, Water Treatment, 1961, pp. 104-105, 262.
Betz, Handbook of Industrial Water Conditioning, 1976, pp. 86-89.

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