Invention Grant
- Patent Title: Optical film
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Application No.: US15560255Application Date: 2016-03-22
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Publication No.: US10549514B2Publication Date: 2020-02-04
- Inventor: Kazuyuki Obuchi , Taku Hatano
- 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: JP2015-062150 20150325
- International Application: PCT/JP2016/059034 WO 20160322
- International Announcement: WO2016/152871 WO 20160929
- Main IPC: B32B27/32
- IPC: B32B27/32 ; B32B25/04 ; B32B25/14 ; B32B27/22 ; B32B25/16 ; B32B27/24 ; B32B25/08 ; B32B7/04 ; C08L53/02 ; H05B33/02 ; B32B27/28 ; B32B27/20 ; B32B15/06 ; B32B27/30 ; H01L51/52 ; B32B7/02 ; C08F8/04 ; C08F297/04 ; G02B5/30

Abstract:
An optical film including, in this order: a first layer containing a hydrogenated product of an aromatic vinyl compound-conjugated diene compound block copolymer; a second layer containing a norbornene-based polymer; and a third layer containing a hydrogenated product of an aromatic vinyl compound-conjugated diene compound block copolymer. Preferably, the hydrogenated product of the aromatic vinyl compound-conjugated diene compound block copolymer is a hydrogenated product of a styrene-isoprene copolymer. Preferably, a copolymerization ratio of styrene/isoprene in the hydrogenated product of the styrene-isoprene copolymer is 50/50 to 90/10.
Public/Granted literature
- US20180065348A1 OPTICAL FILM Public/Granted day:2018-03-08
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