Title:
METHOD FOR PRODUCING LONG STRETCHED FILM AND LONG POLARIZING FILM
Document Type and Number:
WIPO Patent Application WO/2019/188857
Kind Code:
A1
Abstract:
This method for producing a long stretched film includes, in the stated order, a first step for stretching a long unstretched film in a direction at an angle of 15-50° with respect to the width direction to obtain a long first stretched film, and a second step for stretching the long first stretched film in the width direction to obtain a long second stretched film. The long second stretched film has a slow axis that forms an angle of 10-30° with respect to the width direction.
Inventors:
ISHIHARA JIRO (JP)
Application Number:
PCT/JP2019/012274
Publication Date:
October 03, 2019
Filing Date:
March 22, 2019
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
B29C55/14; G02B5/30
Foreign References:
| JP2012101466A | 2012-05-31 | |||
| JP2012173677A | 2012-09-10 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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