Patent ID: 8592513

Claim:
An elastomer composition comprising: (a) a hydrogenated block copolymer mixture comprising hydrogenated block copolymers (a-1) and (a-2): 100 parts by mass, (a-1): a hydrogenated block copolymer, obtained by hydrogenating a block copolymer comprising at least two polymer blocks A comprising a vinyl aromatic compound as a main component and at least one polymer block B comprising a conjugated diene compound as a main component, wherein a number average molecular weight is more than 200,000 and 400,000 or less, and a content of the polymer blocks A is 15 to 40% by mass: 10 to 60 parts by mass, (a-2): a hydrogenated block copolymer, obtained by hydrogenating a block copolymer comprising at least one polymer block A comprising a vinyl aromatic compound as a main component and at least one polymer block B comprising a conjugated diene compound as a main component, wherein a number average molecular weight is more than 30,000 and 140,000 or less, a content of the polymer block A is 10 to 25% by mass, a vinyl bond content in the conjugated diene compound before hydrogenation is 40 to 60 mol %, and the hydrogenated block copolymer (a-2) has a melt flow rate value (MFR) of 0.1 g/10 minutes or more and less than 30 g/10 minutes, as determined at 230° C. under a load of 2.16 kg in accordance with ASTM D1238: 40 to 90 parts by mass; (b) a polypropylene resin having a melt flow rate value (MFR) of 5 g/10 minutes or more and 100 g/10 minutes or less, as determined at 230° C. under a load of 2.16 kg in accordance with ASTM D1238: 30 to 125 parts by mass; and (c) a hydrocarbon oil: 0 to 60 parts by mass, wherein a crystal melting heat quantity (ΔH) of the hydrogenated block copolymer (a-2) is less than 0.5 J/g.