Title:
PROTECTIVE FILM, FILM LAMINATE, AND POLARIZING PLATE
Document Type and Number:
WIPO Patent Application WO/2016/043239
Kind Code:
A1
Abstract:
[Problem] To provide a protective film which has a thickness of less than 40 µm, a moisture permeability of 80 g/(m2∙24 hours) or less, and high surface hardness. [Solution] The protective film pertaining to the present invention is formed by repeating units having a structure derived from a bifunctional urethane methacrylate, and the repeating units have a plurality of types of saturated cycloaliphatic groups. Therefore, the protective film has low moisture permeability despite having a thickness of less than 40 µm and has high surface hardness. Damage to the surface of the protective film during conveyance or the like can therefore be prevented, and even in a high-temperature high-humidity environment, a polarizing film to which the protective film is affixed does not readily absorb moisture and expansion and contraction of the polarizing film is suppressed.
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Inventors:
GOTO MAKOTO (JP)
MURATA CHIKARA (JP)
SUZUKI MASAYASU (JP)
KUWABARA MASAOMI (JP)
KATO MASAO (JP)
MURATA MAKOTO (JP)
MURATA CHIKARA (JP)
SUZUKI MASAYASU (JP)
KUWABARA MASAOMI (JP)
KATO MASAO (JP)
MURATA MAKOTO (JP)
Application Number:
PCT/JP2015/076352
Publication Date:
March 24, 2016
Filing Date:
September 16, 2015
Export Citation:
Assignee:
TOMOEGAWA CO LTD (JP)
International Classes:
C08F299/06; B32B27/40; C08J5/18; C08J7/043; C08J7/044; C08J7/046; C08J7/048; G02B1/12; G02B1/14; G02B5/02; G02B5/30
Domestic Patent References:
| WO2012096111A1 | 2012-07-19 | |||
| WO2011122519A1 | 2011-10-06 |
Foreign References:
| JP2005255979A | 2005-09-22 | |||
| JPH05105746A | 1993-04-27 | |||
| JPH05105747A | 1993-04-27 | |||
| JP2012236938A | 2012-12-06 | |||
| JP2011094108A | 2011-05-12 |
Attorney, Agent or Firm:
ITOH, ATSUSHI (JP)
Atsushi Ito (JP)
Atsushi Ito (JP)
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