Patent ID: 7045202

Claim:
A long glass fiber filler reinforced resin material for molding comprising: a masterbatch formed of a composite of a matrix resin of homopolypropylene having a pentad isotactic index of at least 95% and a long glass fiber filler, and including an affinity providing component for providing affinity between said matrix resin and said long glass fiber filler; and a diluent resin of an ethylene-propylene block copolymer including a polypropylene component having a pentad isotactic index of at least 95%, an islands-sea structure where domains of polyethylene components are formed in the polypropylene component, and a melt flow rate of 21.3 to 44.0 g/10 min, which is measured on the condition of a temperature of 230° C. and a load of 21.18N according to JIS K7210, wherein said matrix resin of the masterbatch has a melt flow rate of 120 to 300 g/10 min, which is measured on the same condition as the melt flow rate of the diluent resin and is larger than six times the melt flow rate of the diluent resin, said long glass fiber filler, of which the surface is treated with a coupling agent, is in a content of 30 to 50 mass percent with respect to a total mass thereof, and said affinity providing component is acid-denatured polypropylene having a functional group that reacts chemically with said coupling agent, and including at least one selected from the group consisting of maleic anhydride-denatured polypropylene and acrylic acid-denatured polypropylene as a constituent.