To obtain the subject composition capable of producing a molding product having excellent balance of rigidity and impact resistance (especially low-temperature impact resistance) by including a specific block copolymer, glass fibers and a prescribed polypropylene.
This composition is obtained by compounding (A) 40-98 wt.% of a propylene block copolymer which comprises (i) a polymer block composed of a propylene homopolymer or a random copolymer of (a) propylene and (b) ≤10 mol.% of a copolymerizable monomer of ethylene and/or a 4-20C α-olefin and (ii) a polymer block composed of a random copolymer of the component (a) and 10-80 mol.% of the component (b), satisfying the equation nb≤n+1.5 (nb is the average chain length of block of the component (b); (n) is the total average chain length of the component (b)) and has 0.1-200 g/10 minutes melt flow rate with (B) 1-50 wt.% of glass fibers and (C) 0.1-10 wt.% of an unsaturated carboxylic acid modified polypropylene.
FUJITA YUJI
SAKAIZAWA MASAO
SUZUKI TORU
SUGANO TOSHIHIKO
TAYANO TAKAO