Process for making arylene sulfide polymers

Details Process for making arylene sulfide polymers Process for making arylene sulfide polymers

1978-05-11

1979-12-11

Marquis, Melvyn I.

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

Synthetic resins

From sulfur-containing reactant

528 86, C08G 7500

Patent

active

041784332

ABSTRACT:
Polyarylene sulfide resins essentially free of disulfide linkages are obtained by reacting S.sub.2 Cl.sub.2 or S.sub.2 Br.sub.2 with a benzenoid aromatic compound having 0-2 substituents per benzene ring at about 90.degree. C.-350.degree. C. in the presence of a metal halide Friedel-Crafts catalyst. The process is conveniently carried out at 90.degree. C.-150.degree. C. in inert solvent solution from which the polymer precipitates as it is formed.

REFERENCES:
patent: 2513188 (1950-06-01), Macallum
patent: 2538941 (1951-01-01), Macallum
patent: 3274165 (1966-09-01), Lenz et al.
patent: 3311663 (1967-03-01), Degeorges et al.
patent: 3317487 (1967-05-01), Smith
Fujisawa et al., J. Polymer Science (B) 8(1), pp. 19-24 (1970).

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