초록 ▼

Compositions comprising a poly(arylene sulfide) which crystallizes to a fine-grained crystalline morphology are provided. A method is also provided for treating compositions comprising a poly(arylene sulfide) by incorporation of a crystalline morphology altering additive, heating the resulting mixtu

Compositions comprising a poly(arylene sulfide) which crystallizes to a fine-grained crystalline morphology are provided. A method is also provided for treating compositions comprising a poly(arylene sulfide) by incorporation of a crystalline morphology altering additive, heating the resulting mixture above the melting point of the poly(arylene sulfide) and cooling the mixture at a rate of less than 50°C. per minute. Exemplary additives include a poly(arylene sulfide-ketone) and a polyaryl ketone.

대표청구항 ▼

A method comprising the steps of: (a) blending a first poly(arylene sulfide)-containing composition together with an additive which is effective to achieve a crystalline morphology modification of said poly(arylene sulfide), said first poly(arylene sulfide)-containing composition and said additive f

A method comprising the steps of: (a) blending a first poly(arylene sulfide)-containing composition together with an additive which is effective to achieve a crystalline morphology modification of said poly(arylene sulfide), said first poly(arylene sulfide)-containing composition and said additive forming a mixture; (b) heating said mixture to melt the poly(arylene sulfide) present in the poly(arylene sulfide)-containing composition; (c) further heating said mixture to at least 15°C. above the temperature employed in step (b); and (d) cooling said mixture at a rate of less than about 50°C. per minute thus forming a second poly(arylene sulfide)-containing composition.