Patent ID: 7196130

Claim:
A thermoplastic resin composition (Y) comprising the following (A) to (C): (A) 20 to 64.9 wt % of an ethylene copolymer comprising (A-1) an ethylene/1-butene copolymer and (A-2) an ethylene polymer other than (A-1) in such a ratio that (A-1)/(A-2) is 20/80 to 100/0 by weight, (B) 35 to 70 wt % of a metal hydroxide, and (C) 0.1 to 30 wt % of a graft-modified ethylene polymer, wherein the ethylene/1-butene copolymer (A-1) has the following properties: (i) a density (ASTM D1505, 23° C.) in the range of 857 to 890 kg/m 3 , (ii) a melt flow rate (MFR 2 ) (ASTM D1238, loading 2.16 kg, 190° C.) under a loading of 2.16 kg at 190° C. in the range of 0.1 to 100 g/10 min., and (iii) an index (Mw/Mn) of molecular-weight distribution evaluated by GPC in the range of 1.5 to 3.5 and the graft-modified ethylene polymer (C) is a graft-modified product with an unsaturated carboxylic acid or a derivative thereof wherein the amount of the graft is 0.01 to 10 wt %, and the ethylene polymer before graft-modification is an ethylene/1-butene copolymer having the following properties: (i) a density (ASTM D1505, 23° C.) in the range of 857 to 890 kg/m 3 , (ii) a melt flow rate (MFR 2 ) (ASTM D1238, loading 2.16 kg, 190° C.) under a loading of 2.16 kg at 190° C. in the range of 0.1 to 20 g/10 min., and (iii) an index (Mw/Mn) of molecular-weight distribution evaluated by GPC in the range of 1.5 to 3.5.