Process for the preparation of high molecular weight, optionally

Details Process for the preparation of high molecular weight, optionally Process for the preparation of high molecular weight, optionally

1986-08-06

1988-07-26

Anderson, Harold D.

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

Synthetic resins

From sulfur-containing reactant

C08G 7516

Patent

active

047601280

ABSTRACT:
The invention relates to a process for the preparation of high molecular weight, optionally branched polyarylene sulphides with melt viscosities which can be adjusted within a defined range, a high stability of the melt and low corrosion.
These polyarylene sulphides are obtained by reacting alkali metal sulphides, if appropriate mixed with alkali metal bisulphides and reaction accelerators, with dihalogenoaromatics and, if appropriate, polyhalogenoaromatics, with the addition of particular monomercapto compounds.

REFERENCES:
patent: 3386950 (1968-06-01), Horvath et al.
patent: 3870686 (1975-03-01), Campbell
patent: 4535149 (1985-08-01), Ebert et al.
patent: 4605713 (1986-08-01), Heitz et al.

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