Title:
粘着剤組成物
Document Type and Number:
Japanese Patent JP7372544
Kind Code:
B2
Abstract:
An adhesive composition of one aspect of the present invention contains a block copolymer composed of a polymer block A which includes a (meth)acrylate ester unit having a linear or branched side chain of 1 to 8 carbon atoms and has a number average molecular weight of 2,000 to 10,000, a polymer block B which includes at least one of an aromatic vinyl compound unit and a (meth)acrylate ester unit having a cyclic structure, and a polymer block C which includes a (meth)acrylate ester unit having a linear or branched side chain of 1 to 8 carbon atoms, wherein the mass ratio (B/C) between the polymer block B and the polymer block C is within a range from 5.0/95.0 to 30.0/70.0, the mass ratio (A/(B+C)) between the polymer block A and the total of the polymer block B and the polymer block C is within a range from 0.1/99.9 to 5.0/95.0, and the acid value of the block copolymer is at least 8 mgKOH/g.
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Inventors:
Hirokazu Mogami
Miki Takeya
Miki Takeya
Application Number:
JP2020040491A
Publication Date:
November 01, 2023
Filing Date:
March 10, 2020
Export Citation:
Assignee:
Fujikura Kasei Co., Ltd.
International Classes:
C09J153/00
Domestic Patent References:
| JP2016216524A | ||||
| JP2015151452A | ||||
| JP2018535283A | ||||
| JP2001181591A | ||||
| JP2002146316A | ||||
| JP201656295A | ||||
| JP20183035A |
Foreign References:
| WO2020032163A1 | ||||
| WO2018151034A1 |
Attorney, Agent or Firm:
Sumio Tanai
Mitsunaga Igarashi
Toshio Komuro
Yuichiro Shimizu
Mitsunaga Igarashi
Toshio Komuro
Yuichiro Shimizu