公开(公告)号：US11384192B2

公开(公告)日：2022-07-12

申请号：US17059023

申请日：2019-05-22

Applicant: KURARAY CO., LTD.

Inventor： Masahiro Kato ,  Yasushi Senda ,  Yoshihiro Aoki ,  Nobuhiro Oya ,  Hideaki Suzuki

IPC: C08F297/04 ,  C08F8/04 ,  C08L53/02

Abstract: 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° C. for 30 min under nitrogen atmosphere, a weight change rate is −5.5% or more.
Condition (2): the peak top intensity of tan δ 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 −70 to 120° C., and a temperature rise rate of 3° C./min, is 1.0 or more.