Title:
ADHESIVE TAPE
Document Type and Number:
WIPO Patent Application WO/2012/124519
Kind Code:
A1
Abstract:
Provided is an adhesive tape which has unevenness followability capable of sufficiently filling unevenness of an adherend and can hold a state in which unevenness is sufficiently filled over time. The adhesive tape includes an adhesive agent layer and a substrate layer, and the adhesive agent layer has a storage elasticity modulus at 20°C of 0.5 × 106 Pa to 1.0 × 108 Pa and a loss tangent tan δ at 20°C to 80°C of 0.1 or more. In a preferred embodiment, the adhesive agent layer contains an amorphous propylene-(1-butene) copolymer obtained by polymerization using a metallocene catalyst, and the propylene-(1-butene) copolymer has a weight average molecular weight (Mw) of 200,000 or more and a molecular weight distribution (Mw/Mn) of 2 or less.
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Inventors:
SASAKI TAKATOSHI (JP)
HABU TAKASHI (JP)
IKISHIMA SHINSUKE (JP)
KAMEI KATSUTOSHI (JP)
ASAI FUMITERU (JP)
HABU TAKASHI (JP)
IKISHIMA SHINSUKE (JP)
KAMEI KATSUTOSHI (JP)
ASAI FUMITERU (JP)
Application Number:
PCT/JP2012/055557
Publication Date:
September 20, 2012
Filing Date:
March 05, 2012
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
SASAKI TAKATOSHI (JP)
HABU TAKASHI (JP)
IKISHIMA SHINSUKE (JP)
KAMEI KATSUTOSHI (JP)
ASAI FUMITERU (JP)
SASAKI TAKATOSHI (JP)
HABU TAKASHI (JP)
IKISHIMA SHINSUKE (JP)
KAMEI KATSUTOSHI (JP)
ASAI FUMITERU (JP)
International Classes:
C08F210/08; C09J7/22; C09J7/38; C09J123/14; C09J201/00
Domestic Patent References:
WO2008102670A1 | 2008-08-28 | |||
WO2005090505A1 | 2005-09-29 |
Foreign References:
JP2002155249A | 2002-05-28 | |||
JP2005298703A | 2005-10-27 | |||
JP2008214437A | 2008-09-18 | |||
JPH09137013A | 1997-05-27 | |||
JP2012062406A | 2012-03-29 |
Attorney, Agent or Firm:
MOMII, Takafumi (JP)
Takafumi Momii (JP)
Takafumi Momii (JP)
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Claims: