Title:
METHOD FOR PRODUCING OPTICAL FILM, AND OPTICAL FILM
Document Type and Number:
WIPO Patent Application WO/2016/158968
Kind Code:
A1
Abstract:
Provided are: a production method for producing a high-strength thin optical film by stretching a melt-extruded film containing rubber particles while preventing the occurrence of blushing which may be caused by the rubber particles; and an optical film.
A method for producing an optical film according to the present invention is characterized by comprising a relaxation step of shrinking the size of a stretched film in the direction of stretching of the stretched film, while applying a tensile force to the stretched film in the direction of the stretching of the stretched film, wherein the stretched film comprises a thermoplastic resin composition comprising a thermoplastic resin and rubber particles.
Inventors:
KAMIKARIYA NAOYA (JP)
Application Number:
PCT/JP2016/060164
Publication Date:
October 06, 2016
Filing Date:
March 29, 2016
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
B29C55/12; C08J5/18; G02B5/30
Domestic Patent References:
| WO2008136346A1 | 2008-11-13 | |||
| WO2014041803A1 | 2014-03-20 |
Foreign References:
| JP2014240906A | 2014-12-25 | |||
| JP2010126550A | 2010-06-10 | |||
| JP2010271690A | 2010-12-02 | |||
| JP2012032773A | 2012-02-16 | |||
| JP2008266603A | 2008-11-06 | |||
| JP2008132746A | 2008-06-12 |
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki et al. (JP)
Right wood Masayuki (JP)
Right wood Masayuki (JP)
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