Title:
POLY(VINYL ALCOHOL) FILM AND PRODUCTION METHOD FOR POLARIZING FILM
Document Type and Number:
WIPO Patent Application WO/2019/189693
Kind Code:
A1
Abstract:
The present invention relates to a poly(vinyl alcohol) film which comprises a vinyl-alcohol-based polymer and which, when immersed in 60°C water for 2 hours and then examined by the pulse NMR solid-echo method at 60°C, has an NMR signal intensity at the time of 0.10 milliseconds of 78% or less of the initial intensity. From the poly(vinyl alcohol)-based film of the present invention can be produced a polarizing film which has satisfactory polarizing performance and is less apt to decrease in polarizing performance even under high-humidity conditions.
Inventors:
NISHIMURA YOHEI (JP)
KUSAKA YASUNARI (JP)
NAKAJIMA NAMI (JP)
KUSAKA YASUNARI (JP)
NAKAJIMA NAMI (JP)
Application Number:
PCT/JP2019/013872
Publication Date:
October 03, 2019
Filing Date:
March 28, 2019
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
G02B5/30; C08F118/08
Domestic Patent References:
| WO2015020046A1 | 2015-02-12 |
Foreign References:
| JP2018028662A | 2018-02-22 | |||
| JP2013242342A | 2013-12-05 | |||
| JP2004279651A | 2004-10-07 | |||
| JP2015038168A | 2015-02-26 | |||
| JP2012082313A | 2012-04-26 | |||
| JP2009221462A | 2009-10-01 | |||
| JP3422759B2 | 2003-06-30 |
Attorney, Agent or Firm:
TAGUCHI, Masahiro et al. (JP)
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