Title:
PROCESS FOR PRODUCING POLARIZING PLATE
Document Type and Number:
Japanese Patent JP2014178709
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a process for producing a polarizing plate which is transparent, has resistance to high temperature and high humidity, and is significantly improved in brittleness.SOLUTION: A process for producing a polarizing plate comprising two polarizing plate protective films and a polarizer intercalated between the protective films is provided. At least one of the two polarizing plate protective films is an acrylic film comprising an acrylic resin (A) and a cellulose ester resin (B) at a ratio of 85:15 to 55:45 by mass. The acrylic film is drawn in at least one direction at a draw ratio of 10% or more and 150% or less, subjected to a saponification treatment within 360 hours after the drawing, and subsequently bonded to the polarizer with an aqueous adhesive agent.
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Inventors:
TAKEBE TAKASHI
TAKIMOTO MASATAKA
KUBO NOBUO
TAKIMOTO MASATAKA
KUBO NOBUO
Application Number:
JP2014116908A
Publication Date:
September 25, 2014
Filing Date:
June 05, 2014
Export Citation:
Assignee:
KONICA MINOLTA INC
International Classes:
G02B5/30; C08J5/18; C08J7/00; C08K5/103; C08L1/10; C08L33/00
Domestic Patent References:
| JP2009048162A | 2009-03-05 |
Foreign References:
| WO2008126528A1 | 2008-10-23 |
Attorney, Agent or Firm:
Hatta international patent business corporation