Glass fiber reinforced polypropylene resin pellet for tank arranged in vehicle front portion, contains glass fiber, heavy metal deactivator and polypropylene resin containing propylene type random copolymer and propylene homopolymer

摘要

A glass fiber reinforced polypropylene resin pellet contains glass fiber (B), heavy metal deactivator (C) and polypropylene resin (A) containing propylene type random copolymer (a) and propylene homopolymer (b). Component (a) is obtained by copolymerizing monomer(s) chosen from ethylene and alpha -olefin, and propylene. Component (A) has intrinsic viscosity of 1.15-1.5 dl/g or less measured using 135[deg]C tetralin. A glass fiber reinforced polypropylene resin pellet contains glass fiber (B) having weighted mean fiber length of 2-20 mm, heavy metal deactivator (C) and polypropylene resin (A) containing propylene type random copolymer (a) (in wt.%) (10-100) and propylene homopolymer (b) (0-90). The weight ratio of component (A) with respect to component (B) is 70/30-30/70. The ratio of component (C) with respect to sum total weight of components (A,B) is 0.15/100-5/100. The sum total weight of components (a,b) is 100 wt.%. Component (a) is obtained by copolymerizing monomer(s) chosen from ethylene and alpha -olefin, and propylene. Component (A) has intrinsic viscosity of 1.15-1.5 dl/g or less measured using 135[deg]C tetralin. Component (A) contains 0.7-3 wt.% of structural unit derived from monomer(s) chosen from ethylene and alpha -olefin. The sum total weight of structural unit derived from monomer of component (A) is 100 wt.%. An independent claim is included for tank arranged in vehicle front portion structure or vehicle engine room, which is obtained by melt-kneading the glass fiber reinforced polypropylene resin pellet, supplying the molten resin to metal mold, and solidifying.