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Title:
HARD COAT FILM
Document Type and Number:
WIPO Patent Application WO/2023/120474
Kind Code:
A1
Abstract:
The present invention provides a hard coat film excelling in initial adhesion and light-resistant adhesion with a readily adhering layer and a hard coat layer provided on a cycloolefin polymer-based film.　This hard coat film is obtained by laminating a hard coat layer containing an ultraviolet-curable resin, an ultraviolet absorber, and a pigment onto at least one side of a cycloolefin polymer-based film, with a readily adhering layer, comprising an ultraviolet-curable resin containing inorganic microparticles, interposed there between, and the hard coat film satisfies conditions (A) to (D). (A) The thickness of the readily adhering layer is 0.1-2.0 µm. (B) The thickness of the hard coat layer is 1.0-10 µm. (C) The survival rate of the hard coat layer and the readily adhering layer measured in accordance with a cross-cut method stipulated by JIS-K5600-5-6 is 100%. (D) The survival rate of the hard coat layer and the readily adhering layer measured by the cross-cut method after being radiated for 100 hours (light-resistance test) with ultraviolet rays at an irradiance of 500 W/m2 in an environment including a temperature of 63ºC and a relative humidity of 50% is 100%.

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Inventors:
HOTTA TAKESHI (JP)
SUGIYAMA YUSUKE (JP)
KOIKE RYO (JP)
YOKOI YUKI (JP)
SAKASHITA EISUKE (JP)
Application Number:
PCT/JP2022/046669
Publication Date:
June 29, 2023
Filing Date:
December 19, 2022
Export Citation:
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Assignee:
JUJO PAPER CO LTD (JP)
International Classes:
G02B1/14; B32B27/00; B32B27/32; C08J7/046; C09K3/00; G02B5/22
Domestic Patent References:
WO2017110810A12017-06-29
WO2013094664A12013-06-27
Foreign References:
JP2014084360A2014-05-12
JP2021017014A2021-02-15
JP2008134624A2008-06-12
JP2013113896A2013-06-10
JP2018132665A2018-08-23
JP2019026807A2019-02-21
JP2016169335A2016-09-23
JP2015063615A2015-04-09
US20160197300A12016-07-07
Attorney, Agent or Firm:
OTSUKA Takefumi (JP)
Download PDF:
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