Title:
DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2015/151222
Kind Code:
A1
Abstract:
A double-sided pressure-sensitive adhesive sheet (1) used to adhere a first hard object (4) and a second hard object (5) together. Said double-sided pressure-sensitive adhesive sheet (1) has a first pressure-sensitive adhesive surface (11S) that adheres to the first hard object (4) and a second pressure-sensitive adhesive surface (12S) that adheres to the second hard object (5). The ratio (L1/L2) of the peel force (L1) between the first pressure-sensitive adhesive surface (11S) and the first hard object (4) as per a loop tack test to the peel force (L2) between the second pressure-sensitive adhesive surface (12S) and the second hard object (5) as per a loop tack test is between 0.0005 and 0.05, inclusive. The contact angle of diiodomethane on at least the first pressure-sensitive adhesive surface (11S) is greater than or equal to 85°. This double-sided pressure-sensitive adhesive sheet (1) excels in terms of reworkability, and the first hard object (4) and the second hard object (5) bonded together using this double-sided pressure-sensitive adhesive sheet (1) can be separated such that at least the first hard object (4) can be reused.
Inventors:
ARAI TAKAYUKI (JP)
TAKAHASHI YOICHI (JP)
SHOSHI SATORU (JP)
TAKAHASHI YOICHI (JP)
SHOSHI SATORU (JP)
Application Number:
PCT/JP2014/059602
Publication Date:
October 08, 2015
Filing Date:
March 31, 2014
Export Citation:
Assignee:
LINTEC CORP (JP)
International Classes:
C09J7/22; C09J7/38; C09J133/04; C09J183/04
Domestic Patent References:
| WO2009038183A1 | 2009-03-26 |
Foreign References:
| JPH01138284A | 1989-05-31 | |||
| JPH10316954A | 1998-12-02 | |||
| JPH1095638A | 1998-04-14 | |||
| JP2009001754A | 2009-01-08 | |||
| JPH05255648A | 1993-10-05 | |||
| JPH11504625A | 1999-04-27 | |||
| JP2004099758A | 2004-04-02 | |||
| JP2010143976A | 2010-07-01 | |||
| JP2003150316A | 2003-05-23 | |||
| JP2000265132A | 2000-09-26 | |||
| JPH05320592A | 1993-12-03 |
Attorney, Agent or Firm:
HAYAKAWA, Yuzi et al. (JP)
Yuji Hayakawa (JP)
Yuji Hayakawa (JP)
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