Title:
METHOD OF PRODUCING THIN POLARIZING FILM
Document Type and Number:
WIPO Patent Application WO/2012/033153
Kind Code:
A1
Abstract:
A method of producing thin polarizing film having superior optical properties is provided. This method of producing thin polarizing film comprises a step of preparing a laminate (10) by forming polyvinyl alcohol-based resin layers (12) on a thermoplastic resin base material (11), a step of stretching the laminate (10) while submerged in an aqueous solution of boric acid, and a step of stretching the laminate (10) while drying after stretching while submerged in the aqueous solution.
Inventors:
MORI TOMOHIRO (JP)
MIYATAKE MINORU (JP)
KAMIJO TAKASHI (JP)
GOTO SHUSAKU (JP)
KITAGAWA TAKEHARU (JP)
MIYATAKE MINORU (JP)
KAMIJO TAKASHI (JP)
GOTO SHUSAKU (JP)
KITAGAWA TAKEHARU (JP)
Application Number:
PCT/JP2011/070438
Publication Date:
March 15, 2012
Filing Date:
September 08, 2011
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
MORI TOMOHIRO (JP)
MIYATAKE MINORU (JP)
KAMIJO TAKASHI (JP)
GOTO SHUSAKU (JP)
KITAGAWA TAKEHARU (JP)
MORI TOMOHIRO (JP)
MIYATAKE MINORU (JP)
KAMIJO TAKASHI (JP)
GOTO SHUSAKU (JP)
KITAGAWA TAKEHARU (JP)
International Classes:
B29C55/06; G02B5/30; G02F1/1335; B29K29/00; B29K67/00; B29L7/00; B29L9/00; B29L11/00
Foreign References:
| JP2003043257A | 2003-02-13 | |||
| JP2001091740A | 2001-04-06 | |||
| JP2005266325A | 2005-09-29 | |||
| JP2009258411A | 2009-11-05 | |||
| JP2007017845A | 2007-01-25 | |||
| JP2000338329A | 2000-12-08 | |||
| JP2001343521A | 2001-12-14 |
Attorney, Agent or Firm:
MOMII, Takafumi (JP)
Takafumi Momii (JP)
Takafumi Momii (JP)
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Claims: