Title:
POLY(VINYL ALCOHOL) FILM AND PRODUCTION METHOD FOR POLARIZING FILM
Document Type and Number:
WIPO Patent Application WO/2019/189695
Kind Code:
A1
Abstract:
A poly(vinyl alcohol) film which comprises a vinyl-alcohol-based polymer and which, when analyzed by the pulse NMR solid-echo method at 80°C, gives a free induction decay curve regarding 1H spin-spin relaxation, the free induction decay curve being separated, through curve fitting, into three curves respectively attributable to three components, i.e., A component, B component, and C component, and lying in order of increasing relaxation time, the relaxation time of A component being 0.0083-0.0093 milliseconds and the proportion of A component being 10-35%.
Inventors:
NISHIMURA YOHEI (JP)
KUSAKA YASUNARI (JP)
NAKAJIMA NAMI (JP)
KUSAKA YASUNARI (JP)
NAKAJIMA NAMI (JP)
Application Number:
PCT/JP2019/013876
Publication Date:
October 03, 2019
Filing Date:
March 28, 2019
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
G02B5/30; C08F118/08; C08J5/18
Domestic Patent References:
| WO2015020046A1 | 2015-02-12 | |||
| WO2018003671A1 | 2018-01-04 |
Foreign References:
| JP2018028662A | 2018-02-22 | |||
| JP2002236214A | 2002-08-23 | |||
| JPH06136151A | 1994-05-17 | |||
| JP2012082313A | 2012-04-26 | |||
| JP3422759B2 | 2003-06-30 | |||
| JP2018002983A | 2018-01-11 |
Other References:
BRUKER, TD-NMRA (VERSION 4.3, REV. 0.8
See also references of EP 3779533A4
See also references of EP 3779533A4
Attorney, Agent or Firm:
TAGUCHI, Masahiro et al. (JP)
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