发明名称 |
PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE LAYER, AND PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive composition for forming a pressure-sensitive adhesive layer that can maintain high initial adhesive force and adhesion reliability (particularly, repelling resistance) upon bonding and can easily be peeled off and can easily separate and dismantle a joined part upon peeling from an adherend. <P>SOLUTION: The invention relates to a pressure-sensitive adhesive composition comprising: a monomer mixture comprising the following (a1), (a2) and (a3) or partially polymerized product thereof, and thermal-expandable fine particles: (a1): alkyl(meth)acrylate monomer having 4 to 12 carbon atoms in its alkyl moiety and having a glass transition temperature when formed into a homopolymer of lower than 0°C; (a2): monomer having at least one nitrogen atom and one ethylenically unsaturated bond in its molecule; and (a3): monomer having one ethylenically unsaturated bond in its molecule and having a glass transition temperature when formed into a homopolymer of 0°C or higher (excluding (a2) above). <P>COPYRIGHT: (C)2012,JPO&INPIT |
申请公布号 |
JP2012117041(A) |
申请公布日期 |
2012.06.21 |
申请号 |
JP20110183098 |
申请日期 |
2011.08.24 |
申请人 |
NITTO DENKO CORP |
发明人 |
NIWA MICHIHITO;NAKAJIMA ATSUSHI |
分类号 |
C09J4/02;C08F220/12;C08F220/56;C08F226/06;C09J7/00;C09J11/06 |
主分类号 |
C09J4/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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