Thermoplastic resin composition

Claim 1

A thermoplastic resin composition which comprises a blend obtained by blending 0.1 to 99% by weight of (a) a fluorine-containing polymer having a functional group and a number-average molecular weight of 2000 to 1000000 and 1 to 99.9% by weight of (b) a heat resisting polyarylene sulfide resin having a crystalline melting point or glass transition temperature of not less than 150° C.; said fluorine-containing polymer (a) having a functional group that is at least one selected from fluorine-containing polymers having functional groups, in which a concentration of the functional groups at a main chain end portion and side chain portion is 2 to 2000 μmol/g per the total weight of the fluorine-containing polymer, and represented by the formula (I): ##STR6## wherein X is a structural unit of the formula --(CH 2 CX 1 X 2 )-- (wherein X 1 and X 2 are the same or different, and each is hydrogen atom, fluorine atom, --(CH 2 ) p --(O) q --R--B 1 (R is a dihydric hydrocarbon group having carbon atoms of 1 to 20 or dihydric fluorine-substituted organic group having carbon atoms of 1 to 20, B 1 is hydrogen atom, fluorine atom, hydroxy group or epoxy group, p is 0 or 1 and q is 0 or 1), --OCO--R--B 1 (R and B 1 are the same as above) or --COO--R--B 1 (R and B 1 are the same as above)); Y is a structural unit of the formula --(CF 2 CY 1 Y 2 )--(wherein Y 1 and Y 2 are the same or different, and each is hydrogen atom, fluorine atom, chlorine atom, --(CF 2 ) r --(O) s --(R f ) t --(CH 2 ) u --B 2 (R f is a dihydric fluorine-substituted organic group having carbon atoms of 1 to 14, B 2 is hydrogen atom, halogen atom, hydroxy group, epoxy group or glycidyloxy group, r is 0 or 1, s is 0 or 1, t is 0 or 1, and u is an integer of 1 to 3) or S(CF 2 ) v --B 3 (B 3 is hydrogen atom, fluorine atom or chlorine atom, and v is an integer of 1 to 10)); both A 1 and A 2 are end portions of a main chain; provided that each of X and Y may comprise two or more structural units; Y may not be present when X has the structural unit derived from CH 2 ═CHF, CH 2 ═CF 2 or fluoroalkyl-α-substituted acrylate (substituent is hydrogen atom, fluorine atom or methyl); X may not be present when Y has the structural unit derived from CH 2 ═CF 2 or CH 2 ═CHCl; at least one of A 1 and A 2 contains hydroxy group, epoxy group or glycidyl group when both of X and Y do not contain hydroxy group, epoxy group or glycidyl group; said resin composition contains only the fluorine-containing polymer represented by the formula (I) as the fluorine-containing polymer having functional group.