Process for the preparation of poly(arylene sulfide)...

Details Process for the preparation of poly(arylene sulfide)... Process for the preparation of poly(arylene sulfide)...

C - Chemistry, Metallurgy

08

G

402/344

C08G 75/14 (2006.01) C08G 75/02 (2006.01) D01F 6/76 (2006.01)

Patent

CA 2021177

A method is provided for the production of poly(arylene sulfide) compositions which are especially useful for the preparation of fibers and monofilaments which method comprises a) contacting under suitable conditions a sulfur source, a dihalogenated aromatic compound and optionally other halogenated aromatic compounds, a polar organic compound, a base, and an alkali metal carboxylate in order to form a substantially liquid mixture comprising poly(arylene sulfide) polymer, polar organic compound and water; b) slowly cooling to form a slurry comprising solid poly(arylene sulfide) particles and liquid comprising the polar organic compound and water and adding an effective amount of at least one extraction agent; c) contacting the poly(arylene sulfide) particles with an aqueous solution containing calcium ions; and d) recovering the poly(arylene sulfide) composition.

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