公开(公告)号：US20220153971A1

公开(公告)日：2022-05-19

申请号：US17438699

申请日：2020-03-27

Applicant: JSR CORPORATION

Inventor： Takumi ADACHI ,  Hirofumi SENGA ,  Michitaka KAIZU ,  Toshimitsu KIKUCHI ,  Takuya SANO

IPC: C08L15/00 ,  C08C19/22 ,  C08C19/02 ,  C08C19/25 ,  C08K3/36 ,  B60C1/00

Abstract: A hydrogenated conjugated diene-based polymer which has a structure formed by bonding a nitrogen-containing compound having two or more alkoxysilyl groups and two or more nitrogen atoms with a plurality of conjugated diene-based polymer chains, wherein: when a composition ratio (molar ratio) in the hydrogenated conjugated diene-based polymer of each of a structural unit represented by formula (1), a structural unit represented by formula (2), a structural unit represented by formula (3), and a structural unit represented by formula (4) is p, q, r, and s, respectively, a value a represented by formula (i) is 0.80 or more and 0.97 or less, and an equilibrium storage modulus E′ of the hydrogenated conjugated diene-based polymer is 2.4 MPa or more, α=(p+(0.5×xr))/(p+q+(0.5×xr)+s) . . .(i)