Title:
ADHESIVE COMPOSITION AND ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2013/002288
Kind Code:
A1
Abstract:
An adhesive sheet having an adhesive layer, or alternatively an adhesive sheet having at least one adhesive layer, comprising an adhesive composition including 100 mass parts of a polyisobutylene-based resin (A) having a weight-average molecular weight of 270,000-480,000, 5-55 mass parts of a polyisobutylene-based resin (B) having a weight-average molecular weight of 100,000-250,000, and 10-55 mass parts of a hydrogenated petroleum resin (C) having a softening point of 90-135°C, wherein: the probe tack of the adhesive layer as measured at a peel rate of 600 mm/min in accordance with JIS- Z0237 (1991) has two maximum values, the first detected first maximum value P1 being 4.0N or greater, and the ratio between the second detected second maximum value P2 and the first maximum value P1 [P2/P1] being 0.25-1.50. The adhesive sheet has excellent adhesion and holding power, makes it possible to suppress the occurrence of zipping, has a low moisture vapor transmission rate and excellent transparency, and makes it possible to suppress the amount of outgas generated.
Inventors:
UEMURA KAZUE (JP)
ONO YOSHITOMO (JP)
AMINO YUMIKO (JP)
KAWADA SATOSHI (JP)
IKEDA HANAKO (JP)
ONO YOSHITOMO (JP)
AMINO YUMIKO (JP)
KAWADA SATOSHI (JP)
IKEDA HANAKO (JP)
Application Number:
PCT/JP2012/066438
Publication Date:
January 03, 2013
Filing Date:
June 27, 2012
Export Citation:
Assignee:
LINTEC CORP (JP)
UEMURA KAZUE (JP)
ONO YOSHITOMO (JP)
AMINO YUMIKO (JP)
KAWADA SATOSHI (JP)
IKEDA HANAKO (JP)
UEMURA KAZUE (JP)
ONO YOSHITOMO (JP)
AMINO YUMIKO (JP)
KAWADA SATOSHI (JP)
IKEDA HANAKO (JP)
International Classes:
C09J123/22; C09J7/10; C09J201/00; H01L51/50; H05B33/04
Domestic Patent References:
| WO2012032907A1 | 2012-03-15 | |||
| WO2011062167A1 | 2011-05-26 | |||
| WO2009148722A2 | 2009-12-10 |
Foreign References:
| JP2011231313A | 2011-11-17 | |||
| JP2011132522A | 2011-07-07 | |||
| JP2009524705A | 2009-07-02 | |||
| JP2010072471A | 2010-04-02 | |||
| JPH09221649A | 1997-08-26 | |||
| JPH05182759A | 1993-07-23 | |||
| JPH1074583A | 1998-03-17 | |||
| JPH10233283A | 1998-09-02 | |||
| JPH05101884A | 1993-04-23 | |||
| JP2007197517A | 2007-08-09 |
Other References:
See also references of EP 2727972A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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Claims: