Title:
DOUBLE-SIDED ADHESIVE TAPE
Document Type and Number:
WIPO Patent Application WO/2021/152890
Kind Code:
A1
Abstract:
Provided is a double-sided adhesive tape having excellent pull-removability. A double-sided adhesive tape according to an embodiment of the present invention is composed of an acrylic adhesive, wherein the acrylic adhesive is formed from an acrylic adhesive composition, the acrylic adhesive composition including: an acrylic partial polymer obtainable by polymerizing a monomer component (m1); a monomer component (m2); a cross-linking agent; and a photopolymerization initiator. The monomer component (m2) includes an alkyl (meth)acrylate having, at an ester terminal thereof, an alkyl group having 4-10 carbon atoms, and a polymerizable monomer of which a corresponding homopolymer has a Tg of 0°C or more. In the monomer component (m2), the content of said polymerizable monomer of which a corresponding homopolymer has a Tg of 0°C or more is 10-90 parts by weight with respect to 100 parts by weight of the alkyl (meth)acrylate having, at an ester terminal thereof, an alkyl group having 4-10 carbon atoms. The acrylic adhesive composition includes a filler, and the average particle diameter of the filler is 1.0-50 μm.
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Inventors:
FUKUHARA JUNJI (JP)
NIWA MASAHITO (JP)
ISEKI TORU (JP)
YOKOKAWA RYOSUKE (JP)
NIWA MASAHITO (JP)
ISEKI TORU (JP)
YOKOKAWA RYOSUKE (JP)
Application Number:
PCT/JP2020/031371
Publication Date:
August 05, 2021
Filing Date:
August 20, 2020
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
C09J4/02; C09J7/38; C09J11/04; C09J11/06; C09J133/04
Domestic Patent References:
| WO2013011946A1 | 2013-01-24 | |||
| WO2014174732A1 | 2014-10-30 |
Foreign References:
| JP2016098366A | 2016-05-30 | |||
| JP2017200998A | 2017-11-09 | |||
| JP2013194072A | 2013-09-30 | |||
| JP2014051644A | 2014-03-20 | |||
| JP2014185322A | 2014-10-02 | |||
| JP2011518920A | 2011-06-30 |
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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