Title:
粘着剤組成物及び粘着シート
Document Type and Number:
Japanese Patent JP6996250
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an adhesive composition capable of forming an adhesive layer which hardly causes defects such as an adhesive residue when re-peeled after sticking, and to provide a pressure-sensitive adhesive sheet which hardly causes defects such as an adhesive residue when it is re-peeled after sticking.SOLUTION: An adhesive composition contains a (meth)acrylic copolymer (A) having a structural unit derived from a macromonomer (a) and a structural unit derived from a vinyl monomer (b), where the vinyl monomer (b) contains alkyl (meth)acrylate having an alkyl group having 9 or more carbon atoms, and a ratio of the (meth)acrylic copolymer (A) represented by G'/G'is 1 or more and 15 or less. G'represents a storage elastic modulus G'(Pa) at 10°C, and G'represents a storage elastic modulus G'(Pa) at 80°C.SELECTED DRAWING: None
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Inventors:
Eri Masuda
Junichi Nakamura
Junichi Nakamura
Application Number:
JP2017223955A
Publication Date:
January 17, 2022
Filing Date:
November 21, 2017
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C09J133/06; C09J7/38; C09J151/06
Domestic Patent References:
| JP2167380A | ||||
| JP2006016549A | ||||
| JP2017193634A | ||||
| JP2017119801A | ||||
| JP2015010197A | ||||
| JP2017531057A | ||||
| JP2015174907A |
Foreign References:
| WO2015080244A1 | ||||
| CN105969253A |
Attorney, Agent or Firm:
田▲崎▼ 聡
Shunsuke Fushimi
Kazunori Onami
Shunsuke Fushimi
Kazunori Onami
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