| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydrogenated block copolymer capable of imparting performance excellent in balance to a molding of a polypropylene resin composition.SOLUTION: There is provided a hydrogenated block copolymer which has a polymer block (C) mainly containing a conjugated diene compound, a polymer block (B1) mainly containing a conjugated compound, a polymer block (S) mainly containing a vinyl aromatic compound, and a polymer block (B2) mainly containing a conjugated diene compound in this order, in the molecule, where a content of (C) is 5-20 mass%, a content of (B1) is 70-90 mass%, a content of (S) is 1-10 mass%, a content of (B2) is 1-10 mass%, each of vinyl bond amounts before hydrogenation of (C) and (B1) are 5-20 mol% and 60-100 mol%, and a hydrogenation rate is 80 mol% or more.SELECTED DRAWING: None |
