Invention Grant
- Patent Title: Block copolymer hydride and stretched film formed from same
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Application No.: US15517964Application Date: 2015-10-08
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Publication No.: US10239966B2Publication Date: 2019-03-26
- Inventor: Daisuke Saito , Yosuke Harauchi , Atsushi Ishiguro , Teiji Kohara
- Applicant: ZEON CORPORATION
- Applicant Address: JP Chiyoda-ku, Tokyo
- Assignee: ZEON CORPORATION
- Current Assignee: ZEON CORPORATION
- Current Assignee Address: JP Chiyoda-ku, Tokyo
- Agency: Kenja IP Law PC
- Priority: JP2014-210418 20141015
- International Application: PCT/JP2015/078696 WO 20151008
- International Announcement: WO2016/060070 WO 20160421
- Main IPC: C08F297/04
- IPC: C08F297/04 ; C08F8/04 ; C08F212/08 ; C08F236/06 ; C08L47/00 ; C08J5/18 ; G02B5/30

Abstract:
The present invention is a hydrogenated block copolymer obtained by hydrogenating a block copolymer [C] that comprises polymer blocks [A] and polymer block [B], a ratio (wA:wB) of a weight fraction wA of the polymer blocks [A] and a weight fraction wB of the polymer block [B] in the block copolymer [C] being 45:55 to 65:35, a ratio (w[IB]:w[IIB]) of a weight fraction w[IB] of the repeating unit [I] derived from an aromatic vinyl compound and a weight fraction w[IIB] of the repeating unit [II] derived from a linear conjugated diene compound in the polymer block [B] being 40:60 to 55:45, 90% of more of unsaturated bonds included in the block copolymer [C] having been hydrogenated, a weight average molecular weight of 60,000 to 150,000, a low-temperature-side glass transition temperature [Tg1] of 0° C. or more and a high-temperature-side glass transition temperature [Tg2] of 135° C. or more, and a stretched film.
Public/Granted literature
- US20170291966A1 BLOCK COPOLYMER HYDRIDE AND STRETCHED FILM FORMED FROM SAME Public/Granted day:2017-10-12
Information query
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