Resin composition and sheet-shaped molded body thereof

A resin composition comprising:

• a polypropylene-based resin (a) having a number average molecular weight of 50000 or higher;
• a hydrogenated block copolymer (b);
• a hydrogenated block copolymer (c);
• and
• a polyolefin resin (d) having a number average molecular weight of lower than 50000,
• wherein the hydrogenated block copolymer (b) comprises:
• at least one polymer block A comprising an aromatic vinyl compound unit as a main constituent;
• and at least one polymer block B comprising a conjugated diene compound unit as a main constituent,
• a total content of the aromatic vinyl compound unit in the hydrogenated block copolymer (b) is 5 to 30% by mass,
• 80 mol % or more of all the conjugated diene compound units in the hydrogenated block copolymer (b) is hydrogenated,
• an amount of vinyl bond of the hydrogenated block copolymer (b) before hydrogenation is more than 60 mol %,
• the hydrogenated block copolymer (c) comprises:
• at least one polymer block C comprising an aromatic vinyl compound unit as a main constituent;
• and at least one polymer block D comprising a conjugated diene compound unit as a main constituent,
• a total content of the aromatic vinyl compound unit in the hydrogenated block copolymer (c) is 5 to 30% by mass,
• 80 mol % or more of all the conjugated diene compound units in the hydrogenated block copolymer (c) is hydrogenated,
• an amount of vinyl bond of the hydrogenated block copolymer (c) before hydrogenation is 40 to 60 mol %,
• a mass ratio of a content of the hydrogenated block copolymer (b) to a content of the hydrogenated block copolymer (c), (b)/(c), is 20/80 to 80/20,
• a mass ratio of a content of the polypropylene-based resin (a) to the total content of the hydrogenated block copolymer (b) and the hydrogenated block copolymer (c), (a)/((b)+(c)), is 40/60 to 90/10, and
• a content of the polyolefin resin (d) in the resin composition is 0.01 to 1.5 parts by mass based on 100 parts by mass of the total content of the hydrogenated block copolymer (b) and the hydrogenated block copolymer (c).