Title:
PHOTOCURABLE ADHESIVE COMPOSITION, DOUBLE-SIDED ADHESIVE SHEET AND METHOD FOR PRODUCING SAME, AND OPTICAL DEVICE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2021/070635
Kind Code:
A1
Abstract:
The present invention provides: a colored double-sided adhesive sheet which absorbs visible light; and a photocurable adhesive composition which is used for the production of this colored double-sided adhesive sheet. A photocurable adhesive composition according to the present invention contains a polymer, a photopolymerizable compound, a photopolymerization initiator and a coloring agent. With respect to the coloring agent, the transmittance in the ultraviolet region (at a wavelength of from 330 nm to 400 nm) is higher than the transmittance in the visible light region (at a wavelength of from 400 nm to 700 nm). A colored double-sided adhesive sheet according to the present invention is formed by applying this composition to a base material and performing, if necessary, photocuring or removal of a solvent.
Inventors:
NAKANO TAKESHI (JP)
TAKARADA SHOU (JP)
FUNAKI CHIHIRO (JP)
WATANABE KENTO (JP)
ASAI RYOKO (JP)
TAKARADA SHOU (JP)
FUNAKI CHIHIRO (JP)
WATANABE KENTO (JP)
ASAI RYOKO (JP)
Application Number:
PCT/JP2020/036330
Publication Date:
April 15, 2021
Filing Date:
September 25, 2020
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B32B27/00; B32B7/12; B32B27/16; B32B27/30; C09J7/38; C09J11/02; C09J133/00; C09J201/00; G02F1/1333
Foreign References:
| JP2015147873A | 2015-08-20 | |||
| JP2013257493A | 2013-12-26 | |||
| JP2014227453A | 2014-12-08 | |||
| JP2009138026A | 2009-06-25 | |||
| JP2009108274A | 2009-05-21 | |||
| JP2014502291A | 2014-01-30 | |||
| JP2008031226A | 2008-02-14 | |||
| JP2010270236A | 2010-12-02 | |||
| JP2019112275A | 2019-07-11 |
Attorney, Agent or Firm:
HARUKA PATENT & TRADEMARK ATTORNEYS (JP)
Download PDF: