Kuraray Co., Ltd.

Yoshihiro Aoki

Masahiro Kato

Hideaki Suzuki

Yasushi Senda

Nobuhiro Oya

The present invention relates to a modified hydrogenated product of a block copolymer having a polymer block (A) containing a structural unit derived from an aromatic vinyl compound, and a polymer block (B) containing a structural unit derived from a conjugated diene compound, a method of producing the modified hydrogenated product, and a resin composition containing the modified hydrogenated product. The modified hydrogenated product has one or more functional groups selected from an alkoxysilyl group, a carboxy group, an amino group, a hydroxy group, an epoxy group, and an acid anhydride-derived group, and satisfies the following conditions. Condition (1): after stay at 330&#xb0; C. for 30 min under nitrogen atmosphere, a weight change rate is &#x2212;5.5% or more. Condition (2): the peak top intensity of tan &#x3b4; measured in accordance with JIS K7244-10 (2005), under conditions including a strain amount of 0.1%, a frequency of 1 Hz, a measurement temperature of &#x2212;70 to 120&#xb0; C., and a temperature rise rate of 3&#xb0; C./min, is 1.0 or more.

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Kamisu, Japan

Yoshihiro Aoki