Preparation of poly (arylene sulfide) from dihalo aromatic hydro

Details Preparation of poly (arylene sulfide) from dihalo aromatic hydro Preparation of poly (arylene sulfide) from dihalo aromatic hydro

1988-08-19

1989-09-19

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528128, 528214, 528388, C08G 7516, C08G 8300

Patent

active

048682756

ABSTRACT:
In a process in which a poly (arylene sulfide) is synthesized by reacting a dihaloaromatic compound and an alkali metal sulfide in a polar organic solvent, the curing ability of the product polymer is significantly enhanced by introducing a small proportion of a hydroxyl group-containing polyhaloaromatic compound to the reaction mixture when a conversion of at least 60% has been achieved with respect to the dihaloaromatic compound present in the reaction mixture. The product polymer may be advantageously employed in various molding, forming or coating processes to provide the produced articles with increased strengths. The hydroxyl groups introduced into the polymer enable the polymer to be modified, if desired.

REFERENCES:
patent: 3354129 (1967-11-01), Edmonds et al.
patent: 3647885 (1972-03-01), Geering et al.
patent: 3668258 (1972-06-01), Hageman
patent: 3763124 (1973-10-01), Edmonds
patent: 4405767 (1983-09-01), Beever et al.

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