THERMOPLASTIC RESIN MOLDED PRODUCT

摘要

A THERMOPLASTIC RESIN MOLDED PRODUCT COMPRISES A THERMOPLASTIC RESIN CONTAINING 5 TO 40% BY WEIGHT OF RUBBER PARTICLES. THE RUBBER PARTICLES PRESENT NEAR THE SURFACE OF THE MOLDED PRODUCT FULFILL CONDITIONS OF THE EQUATIONS (1) TO (4): ( B/A )≤2 (1) WHERE A AND B ARE THE AVERAGE MINOR AND MAJOR AXIS LENGTHS IN A SECTION OF THE RUBBER PARTICLES, 1≤{ (B/A) MAX. } / { ( B/A ) MIN. }≤1.5 (2) WHERE {(B/A)MAX.} AND {(B/A)MIN.} ARE THE MAXIMUM AND MINIMUM VALUES OF THE RATIOS OF (B/A), AND 0≤( AMAX.–A ) / A≤0.2 (3) 0≤( A−AMIN. ) / A≤0.2 (4) WHERE AMAX. AND AMIN. ARE THE MAXIMUM AND MINIMUM VALUES OF THE PROPORTIONS OF THE AREAS ACCOUNTED FOR BY THE RUBBER PARTICLES IN SECTIONS OF THE MOLDED PRODUCT, AND A IS THE AVERAGE VALUE OF THE PROPORTIONS.