Tubular extrusion molding product comprising high molecular...

Details Tubular extrusion molding product comprising high molecular... Tubular extrusion molding product comprising high molecular...

C - Chemistry, Metallurgy

08

G

C08G 75/02 (2006.01) B29C 47/00 (2006.01)

Patent

CA 2141993

A tubular extrusion molding product comprising a high molecular weight polyarylene sulfide having a melt viscosity of from 3,100 poise to 60,000 poise produced by reacting an alkali metal sulfide and a dihaloaroamtic compound in the presence of an organic amide solvent, cooling a gaseous phase part in the reaction zone during the reaction thereby condensating at least a part of the gaseous phase and refluxing the resultant condensate to a liquid phase in the reaction zone. A tubular extrusion molding product having further improved impact resistance can be provided by copolymerizing from 0.2 mold to 1 mold of a polyhaloaromatic compound to the alkali metal sulfide. A tubular extrusion molding product of improved impact resistance is provided by further applying a heat treatment of the polyarylene sulfide intermediate product thereby increasing the melt viscosity.

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