Invention Grant
- Patent Title: Multi-block copolymer composition obtained by modification treatment, and film
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Application No.: US16642897Application Date: 2018-08-23
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Publication No.: US11492452B2Publication Date: 2022-11-08
- Inventor: Kousuke Isobe , Sadaharu Hashimoto , Atsushi Nozawa , Atsushi Noro , Takato Kajita , Yushu Matsushita
- Applicant: ZEON CORPORATION , NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
- Applicant Address: JP Tokyo; JP Nagoya
- Assignee: ZEON CORPORATION,NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
- Current Assignee: ZEON CORPORATION,NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
- Current Assignee Address: JP Tokyo; JP Nagoya
- Agency: Kenja IP Law PC
- Priority: JPJP2017-167040 20170831
- International Application: PCT/JP2018/031200 WO 20180823
- International Announcement: WO2019/044660 WO 20190307
- Main IPC: C08F297/04
- IPC: C08F297/04 ; C08J5/18 ; C08F297/08

Abstract:
A main purpose of the present invention is to provide a multi-block copolymer composition having good elasticity and excellent stress relaxation properties, as well as small tension set. The present invention achieves the purpose by providing a multi-block copolymer composition obtained by a modification treatment, the composition including a block copolymer B formed by introducing a functional group capable of forming a non-covalent bond to a block copolymer A; wherein the block copolymer A includes a block copolymer A1 having a specific primary structure and a block copolymer A2 having a specific primary structure, and the mass ratio (A1/A2) of the block copolymer A1 and the block copolymer A2 is 100/0 to 50/50.
Public/Granted literature
- US20200255607A1 MULTI-BLOCK COPOLYMER COMPOSITION OBTAINED BY MODIFICATION TREATMENT, AND FILM Public/Granted day:2020-08-13
Information query
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