Process for isolating polyarylene sulphides

Details Process for isolating polyarylene sulphides Process for isolating polyarylene sulphides

C - Chemistry, Metallurgy

08

G

402/344

C08G 75/02 (2006.01)

Patent

CA 1315911

23189-6751 Process for isolating polyarylene sulphides A B S T R A C T The invention relates to a process for purifying polyarylene ulphides, comprising cooling the reaction solution obtained from the polymerisation reaction for producing poly- arylene sulphides to a temperature between 30 and 70°C having a cooling rate of 0.l to 20°C per second, grinding the cooled product, and treating the cooled product with water or an organic solvent. In this process polyarylene sulphides are obtained with a particularly low electrolyte content.

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