Title:
ACRYLIC PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE TAPE, AND OPTICAL DEVICE INCLUDING OPTICAL SHEET FIXED BY SAID PRESSURE-SENSITIVE ADHESIVE TAPE
Document Type and Number:
WIPO Patent Application WO/2020/170342
Kind Code:
A1
Abstract:
Disclosed are: an acrylic pressure-sensitive adhesive composition which contains an acrylic copolymer (A) including a polymer chain obtained from constituent ingredients comprising an alkyl (meth)acrylate monomer (a1) having a linear and/or branched alkyl group having 6-10 carbon atoms and a nitrogen-containing monomer (a2) and which, in the range of 20-100°C, has a change in loss tangent (tanδ) of 0.5 or less; and a pressure-sensitive adhesive tape including at least one acrylic pressure-sensitive adhesive layer comprising said acrylic pressure-sensitive adhesive composition.
Inventors:
KUSANO DAICHI (JP)
ISHIKAWA KAZUKI (JP)
ISHIKAWA KAZUKI (JP)
Application Number:
PCT/JP2019/006170
Publication Date:
August 27, 2020
Filing Date:
February 19, 2019
Export Citation:
Assignee:
TERAOKA SEISAKUSHO KK (JP)
International Classes:
C09J7/38; C09J133/06; G02F1/1333
Foreign References:
US20150315425A1 | 2015-11-05 | |||
JP2007217441A | 2007-08-30 | |||
JP2013256552A | 2013-12-26 | |||
JP2012201735A | 2012-10-22 | |||
JPS5030055B1 | 1975-09-29 | |||
US20140184053A1 | 2014-07-03 | |||
JP2005275053A | 2005-10-06 | |||
JP2008248226A | 2008-10-16 |
Other References:
See also references of EP 3929262A4
Attorney, Agent or Firm:
ISHIBASHI, Masayuki et al. (JP)
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