| 摘要 |
PROBLEM TO BE SOLVED: To provide a foam having excellent flexibility. SOLUTION: The foam is a foam comprising a hydrogenated copolymer and the hydrogenated copolymer is a hydrogenated copolymer obtained by adding hydrogen to a copolymer comprising a conjugate diene and a vinyl aromatic compound. The foam is characterized in that (a) content of the vinyl aromatic compound in the hydrogenated copolymer is in excess of 50% by weight and 90% by weight or less, (b) the content of the polymer block of the vinyl aromatic compound in the hydrogenated copolymer is 40% by weight or less, (c) a weight-average molecular weight of the hydrogenated copolymer is from 50,000 to 1,000,000 and (d) 75% or more of the double bonds based on the conjugate diene compound in the hydrogenated copolymer is hydrogenated. COPYRIGHT: (C)2004,JPO
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