Thermoplastic resin composition

Claim 1

A thermoplastic resin composition comprising components (1), (2) and (3) in which component (2) forms a continuous phase, component (1) forms a continuous phase intermingled with component (2) or forms a dispersed phase in component (2), and component (3) is dispersed in component (1), at least a part of component (3) having a continuous structure; (i) said component (1) ranging from 10 to 55% by weight and being an amorphous polymer having a glass transition temperature of at least 90° C. and being selected from the group consisting of polyphenylene ether, polycarbonate, amorphous polyamide having a crystallinity less than 15%, polystyrene and acrylonitrile-butadiene-styrene resin; (ii) component (2) ranging in an amount from 40 to 85% by weight and being a crystallized polymer which shows at least partial crystalline properties, has a melting point of at least 100° C. and is at least one material selected from the group consisting of polyolefins, crystalline polyamides having a crystallinity of at least 15%, and polyalkylene terephthalates; and (iii) component (3) ranging in an amount from 5 to 35 % by weight of a rubbery polymer having a storage shear modulus at room temperature of 5×10 8 dyne/cm 2 or less, all weight percents being based on the weight of the thermoplastic resin composition, wherein the dispersed state of component (3) is such that the number of the rubber-like dispersed particles having compactness C (obtained by the expression C=4πs/L 2 , wherein S is the area of the rubbery polymer phase and L is the circumferential length thereof) of 0.6 or less is in the range of from 30 to 90% to the number of whole rubbery polymer particles.