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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)
Application Number:
PCT/JP2019/006170
Publication Date:
August 27, 2020
Filing Date:
February 19, 2019
Export Citation:
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Assignee:
TERAOKA SEISAKUSHO KK (JP)
International Classes:
C09J7/38; C09J133/06; G02F1/1333
Foreign References:
US20150315425A12015-11-05
JP2007217441A2007-08-30
JP2013256552A2013-12-26
JP2012201735A2012-10-22
JPS5030055B11975-09-29
US20140184053A12014-07-03
JP2005275053A2005-10-06
JP2008248226A2008-10-16
Other References:
See also references of EP 3929262A4
Attorney, Agent or Firm:
ISHIBASHI, Masayuki et al. (JP)
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