Title:
CURABLE ADHESIVE FOR POLARIZING FILMS, POLARIZING FILM, OPTICAL FILM AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/030203
Kind Code:
A1
Abstract:
This curable adhesive for polarizing films, which contains a curable component, has a bulk water absorption of 10% by weight or less in cases where a cured product of this curable adhesive for polarizing films is immersed in pure water at 23°C for 24 hours, said bulk water absorption being represented by the following formula.
Bulk water absorption (%) = {(M2 - M1)/M1} × 100 (%)
(In this formula, M1 represents the weight of the cured product before immersion, and M2 represents the weight of the cured product after immersion.)
This curable adhesive for polarizing films provides excellent adhesion between a polarizer and a transparent protective film, and is able to have satisfactory optical durability in a harsh environment at high temperature and high humidity. In addition, this curable adhesive for polarizing films exhibits sufficient adhesive power even if immersed in water for a long period of time.
Inventors:
SAITO TAKESHI (JP)
OKAMOTO MIKI (JP)
YAMASAKI TATSUYA (JP)
IKEDA TETSUROU (JP)
OKAMOTO MIKI (JP)
YAMASAKI TATSUYA (JP)
IKEDA TETSUROU (JP)
Application Number:
PCT/JP2014/072816
Publication Date:
March 05, 2015
Filing Date:
August 29, 2014
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
C09J201/00; C09J4/00; C09J11/06; G02B5/30
Foreign References:
| JP2013112715A | 2013-06-10 | |||
| JP2013112693A | 2013-06-10 |
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
Patent business corporation ユニアス international patent firm (JP)
Patent business corporation ユニアス international patent firm (JP)
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