Invention Grant
- Patent Title: Hydrogenated copolymer and composition containing the same
- Patent Title (中): 氢化共聚物和含有它们的组合物
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Application No.: US12078571Application Date: 2008-04-01
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Publication No.: US07960481B2Publication Date: 2011-06-14
- Inventor: Masahiro Sasagawa , Toshinori Shiraki , Shigeki Takayama , Shigeru Sasaki , Katsumi Suzuki , Takahiro Hisasue , Kazuo Moritou
- Applicant: Masahiro Sasagawa , Toshinori Shiraki , Shigeki Takayama , Shigeru Sasaki , Katsumi Suzuki , Takahiro Hisasue , Kazuo Moritou
- Applicant Address: JP Tokyo
- Assignee: Asahi Kasei Chemicals Corporation
- Current Assignee: Asahi Kasei Chemicals Corporation
- Current Assignee Address: JP Tokyo
- Agency: Staas & Halsey LLP
- Priority: JP2002-187325 20020627; JP2002-189562 20020628; JP2003-087488 20030327
- Main IPC: C08F8/04
- IPC: C08F8/04 ; C08C19/02

Abstract:
A hydrogenated copolymer obtained by hydrogenating an unhydrogenated copolymer comprising conjugated diene monomer units and vinyl aromatic monomer units, the hydrogenated copolymer containing at least one hydrogenated copolymer block (B) which is obtained by hydrogenating an unhydrogenated random copolymer block comprised of conjugated diene monomer units and vinyl aromatic monomer units, wherein the hydrogenated copolymer has the following characteristics: the hydrogenated copolymer has a content of the vinyl aromatic monomer units of from more than 40% by weight to less than 95% by weight; at least one peak of loss tangent (tan δ) is observed at −10 to 80° C. in a dynamic viscoelastic spectrum obtained with respect to the hydrogenated copolymer; and substantially no crystallization peak ascribed to the copolymer block (B) is observed at −20 to 80° C. in a differential scanning calorimetry (DSC) chart obtained with respect to the hydrogenated copolymer.
Public/Granted literature
- US20080194716A1 Hydrogenated copolymer and composition containing the same Public/Granted day:2008-08-14
Information query
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