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Title:
PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET MAKING USE OF THE SAME
Document Type and Number:
WIPO Patent Application WO/2007/097365
Kind Code:
A1
Abstract:
A pressure-sensitive adhesive layer of pressure-sensitive adhesive sheet is prepared by the use of a pressure-sensitive adhesive composition comprising (A) polyrotaxane having a linear-chain molecule passing through opening portions of at least two cyclic molecules, the cyclic molecules having reactive groups, the linear-chain molecule at its both ends having block groups, and (B) adhesive polymer having two or more functional groups capable of reacting with the reactive groups, or a pressure-sensitive adhesive composition (A) polyrotaxane having a linear-chain molecule passing through opening portions of at least two cyclic molecules, the cyclic molecules having reactive groups, the linear-chain molecule at its both ends having block groups, (B’) adhesive polymer having two or more reactive groups and (C) compound having two or more functional groups capable of reacting with the reactive groups of the polyrotaxane (A) and the reactive groups of the polymer (B’). Thus, there can be provided a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer that excels in flexibility and exhibits high gel ratio and durability; and provided a pressure-sensitive adhesive composition for preparing of the pressure-sensitive adhesive layer.

Inventors:
ARAI TAKAYUKI (JP)
KASHIO MIKIHIRO (JP)
TAKATA TOSHIKAZU (JP)
Application Number:
PCT/JP2007/053197
Publication Date:
August 30, 2007
Filing Date:
February 21, 2007
Export Citation:
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Assignee:
LINTEC CORP (JP)
ARAI TAKAYUKI (JP)
KASHIO MIKIHIRO (JP)
TAKATA TOSHIKAZU (JP)
International Classes:
C09J201/00; C09J4/00; C09J4/06; C09J7/38; C09J105/16; C09J109/00; C09J123/06; C09J123/12; C09J123/22; C09J133/08; C09J167/00; C09J171/00; C09J171/08; C09J179/02; C09J183/04; C09J201/02
Domestic Patent References:
WO2001083566A12001-11-08
WO2005095493A12005-10-13
WO2003074099A12003-09-12
WO2006088200A12006-08-24
WO2006090819A12006-08-31
Foreign References:
JP2003049143A2003-02-21
JPH03220120A1991-09-27
JP2004099792A2004-04-02
JP2005154675A2005-06-16
Other References:
See also references of EP 1995290A1
Attorney, Agent or Firm:
HAYAKAWA, Yuzi et al. (Suite 501 Hikawa-Annex No.2, 9-5, Akasaka 6-chom, Minato-ku Tokyo, JP)
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