PROBLEM TO BE SOLVED: To obtain a rubber-reinforced vinyl-based resin excellent in impact resistance, weather resistance, coloring property and appearance after forming. ;SOLUTION: This rubber-reinforced vinyl-based resin is obtained by polymerizing 95-20wt.% vinyl-based monomer in the presence of (A) 5-80wt.% rubbery copolymer obtained by polymerizing monomers having a mixing ratio of ethylene/a 3-20C α-olefin/a non-conjugated diene =(5-95)/(95-5)/(0-30) (in wt.%) by using a metallocene catalyst. The rubber-reinforced vinyl-based resin having 5-200% grafting ratio and 0.1-1.0dl/g specific viscosity [η] of a methyl elhyl ketone-soluble fraction, is obtained.;COPYRIGHT: (C)1997,JPO
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