Title:
ROLLED MASTER FILM, METHOD FOR PRODUCING STRETCHED OPTICAL FILM, AND STRETCHED OPTICAL FILM
Document Type and Number:
WIPO Patent Application WO/2018/235610
Kind Code:
A1
Abstract:
Provided are: a rolled master film from which a thin stretched optical film having high tear strength and excellent optical properties can be produced; a thin stretched optical film having high tear strength and excellent optical properties; and a method for producing the stretched optical film. The present invention is a rolled master film for producing a stretched optical film which has an average thickness of 45 μm or less and contains a vinyl alcohol polymer that is the main component and resin particles having an average particle diameter of 25 to 150 nm inclusive, wherein the content of the resin particles is 1 to 25% by mass inclusive.
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Inventors:
OHASHI WATARU (JP)
KAWASAKI MASAHIRO (JP)
ISOZAKI TAKANORI (JP)
KUBO KEIJI (JP)
KAWASAKI MASAHIRO (JP)
ISOZAKI TAKANORI (JP)
KUBO KEIJI (JP)
Application Number:
PCT/JP2018/021829
Publication Date:
December 27, 2018
Filing Date:
June 07, 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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