Title:
RAW MATERIAL FILM, STRETCHED OPTICAL FILM MANUFACTURING METHOD, AND STRETCHED OPTICAL FILM
Document Type and Number:
WIPO Patent Application WO/2018/235532
Kind Code:
A1
Abstract:
The present invention provides a raw material film with which a stretched optical film that is thin and not easily torn can be relatively easily obtained, the stretched optical film that is thin and not easily torn, and a stretched optical film manufacturing method by which this stretched optical film can be relatively easily obtained. The present invention is a raw material film for manufacturing a stretched optical film, the raw material film having an average thickness of 45 μm or less, and containing a vinyl alcohol-based polymer as a main component, and resin particles with a glass transition temperature of 30°C or lower, wherein the content of the resin particles relative to 100 parts by mass of the vinyl alcohol-based polymer is 1-50 parts by mass inclusive.
Inventors:
KAWASAKI EMI (JP)
KAWASAKI MASAHIRO (JP)
OHASHI WATARU (JP)
INATOMI ATSUSHI (JP)
ISOZAKI TAKANORI (JP)
KUBO KEIJI (JP)
KAWASAKI MASAHIRO (JP)
OHASHI WATARU (JP)
INATOMI ATSUSHI (JP)
ISOZAKI TAKANORI (JP)
KUBO KEIJI (JP)
Application Number:
PCT/JP2018/020386
Publication Date:
December 27, 2018
Filing Date:
May 28, 2018
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
G02B5/30; B29C55/04; C08J5/18; B29K29/00; B29L7/00; B29L11/00
Domestic Patent References:
| WO2016093277A1 | 2016-06-16 |
Foreign References:
| JP2016166305A | 2016-09-15 | |||
| JP2017009795A | 2017-01-12 |
Attorney, Agent or Firm:
AMANO Kazunori (JP)
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