Title:
ADHESIVE SHEET AND PEELING METHOD FOR ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2019/151194
Kind Code:
A1
Abstract:
Provided is an adhesive sheet having an adhesive layer. The adhesive layer includes a layer A that constitutes at least one surface of the adhesive layer. The adhesive sheet has: an adhesiveness N0 of at least 2.0 N/10 mm of an alkali glass plate serving as an adherend and made by a float method, the adhesiveness being measured after attaching the layer A on a surface having a contact angle of 5-10 degrees with respect to distilled water and leaving the layer for 1 day at room temperature; a decreasing ratio of at most 30% of a water resistant adhesiveness N1 to the adhesiveness N0, the water resistant adhesiveness being measured after immersing the adhesive layer into water for 30 minutes after leaving the adhesive layer for 1 day at room temperature, and taking out the adhesive layer from water and wiping attached water; and a decreasing ratio of at least 40% of a water peeling force N2 to the adhesiveness N0, the water peeling force being measured under a condition of a tensioning speed of 300 mm/minute and a peeling angle of 180 degrees after dropping 20 μL of distilled water to the adherend after leaving the adherend for 1 day at room temperature and introducing the distilled water on one end of the interface surface between the adhesive layer and the adherend.
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Inventors:
KOSAKA NAOFUMI (JP)
SHIMIZU YOSUKE (JP)
HONDA SATOSHI (JP)
SHIMOKURI TAIKI (JP)
TAKARADA SHOU (JP)
SATAKE MASAYUKI (JP)
OKADA KENICHI (JP)
TAKASHIMA ATSUSHI (JP)
MIZUHARA GINJI (JP)
OKAMOTO MASAYUKI (JP)
ASAI RYOKO (JP)
SHIMIZU YOSUKE (JP)
HONDA SATOSHI (JP)
SHIMOKURI TAIKI (JP)
TAKARADA SHOU (JP)
SATAKE MASAYUKI (JP)
OKADA KENICHI (JP)
TAKASHIMA ATSUSHI (JP)
MIZUHARA GINJI (JP)
OKAMOTO MASAYUKI (JP)
ASAI RYOKO (JP)
Application Number:
PCT/JP2019/002795
Publication Date:
August 08, 2019
Filing Date:
January 28, 2019
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
C09J7/38; B32B27/00; B32B27/30; C09J5/00; C09J11/00; C09J133/06; C09J201/00
Domestic Patent References:
| WO2017094474A1 | 2017-06-08 | |||
| WO2009093577A1 | 2009-07-30 |
Foreign References:
| JP2013117004A | 2013-06-13 | |||
| JP2005148638A | 2005-06-09 | |||
| JPH10125768A | 1998-05-15 | |||
| JPH09100448A | 1997-04-15 | |||
| JPH07294585A | 1995-11-10 | |||
| JPS6143677A | 1986-03-03 | |||
| JP2018018621A | 2018-02-01 | |||
| JP2018109385A | 2018-07-12 | |||
| JP2018143420A | 2018-09-20 | |||
| JP2005148638A | 2005-06-09 | |||
| JP2007051271A | 2007-03-01 | |||
| JP4971517B2 | 2012-07-11 |
Other References:
"Polymer Handbook", 1989, JOHN WILEY & SONS, INC.
J. SOC. COSMETIC CHEMISTS, vol. 1, 1949, pages 311
W. C. GRIFFIN: "Surfactant Handbook", 25 November 1972, KOGAKU TOSHO PUBLISHING, pages: 179 - 182
See also references of EP 3750963A4
J. SOC. COSMETIC CHEMISTS, vol. 1, 1949, pages 311
W. C. GRIFFIN: "Surfactant Handbook", 25 November 1972, KOGAKU TOSHO PUBLISHING, pages: 179 - 182
See also references of EP 3750963A4
Attorney, Agent or Firm:
OI, Michiko (JP)
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