Title:
LAMINATE
Document Type and Number:
WIPO Patent Application WO/2019/022027
Kind Code:
A1
Abstract:
A laminate having a polarizer material film and an unstretched base material film provided upon the polarizer material film. The retardation Re1 of the polarizer material film in the in-plane direction is at least 10 nm and the thickness T1 of the polarizer material film is no more than 40 µm. The polarizer material film may be obtained by dry stretching. Ideally, the polarizer material film has been stretched at a stretch ratio X of 1.5–5.5 and when the free end of the laminate has been uniaxially stretched at a stretch ratio of 6.0/X, the thickness T2 of the polarizer material film is no more than 20 µm.
Inventors:
MASHIMA HIROMU (JP)
INOMATA TAKAMICHI (JP)
INOMATA TAKAMICHI (JP)
Application Number:
PCT/JP2018/027561
Publication Date:
January 31, 2019
Filing Date:
July 23, 2018
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
G02B5/30; B29C55/06; B32B7/02; B32B27/00; B32B27/30; B32B27/32; B32B27/36; B29K23/00; B29K33/04; B29K45/00; B29K67/00; B29L7/00; B29L9/00; B29L11/00
Domestic Patent References:
| WO2000032646A1 | 2000-06-08 | |||
| WO2001081957A1 | 2001-11-01 | |||
| WO2015002020A1 | 2015-01-08 |
Foreign References:
| JP2015191224A | 2015-11-02 | |||
| JP2017102439A | 2017-06-08 | |||
| JP2016505404A | 2014-03-28 | |||
| US20160084990A1 | 2016-03-24 | |||
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| JPH03223328A | 1991-10-02 | |||
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Other References:
See also references of EP 3660555A4
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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