Title:
ADHESIVE FILM
Document Type and Number:
Japanese Patent JP2020186400
Kind Code:
A
Abstract:
To provide an adhesive film that uses an adhesive composition capable of forming an adhesive layer having performance of excellent reworkability and high adhesion in spite of a thin film.SOLUTION: An adhesive composition contains an acrylic polymer being a copolymer having an acid number of 0.1 or less and a weight average molecular weight of 1,000,000 or more produced by copolymerizing 100 pts.wt. of the total of (A) a monomer group composed of an alkyl (meth)acrylate monomer having a C1 to C14 alkyl group and a (meth)acrylate monomer having an aromatic group and 0.1 to 3.5 pts.wt. of (B) a hydroxyl group-containing copolymerizable vinyl monomer free from a carboxyl group-containing copolymerizable vinyl monomer in which the acrylic copolymer contains a butyl acrylate in a ratio of at least 30 pts.wt. and a (meth)acrylate monomer having an aromatic group in a ratio of 5 to 20 pts.wt., and further contains an isocyanate compound in a ratio of 0.01 to 0.8 pt.wt. and a silane coupling agent in a ratio of 0.01 to 0.5 pt.wt..SELECTED DRAWING: None
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Inventors:
NAGAKURA TAKESHI
HASEGAWA RYO
YOSHIDA HIROYUKI
HISHINUMA AKIYO
HASEGAWA RYO
YOSHIDA HIROYUKI
HISHINUMA AKIYO
Application Number:
JP2020126775A
Publication Date:
November 19, 2020
Filing Date:
July 27, 2020
Export Citation:
Assignee:
FUJIMORI KOGYO CO
International Classes:
C09J7/38; C09J7/20; C09J11/06; C09J133/14; C09J175/04; G02B5/30; G02F1/1335
Domestic Patent References:
| JP2014152317A | 2014-08-25 | |||
| JP2009215528A | 2009-09-24 | |||
| JP6703086B2 | 2020-06-03 | |||
| JP6703087B2 | 2020-06-03 | |||
| JP6644971B2 | 2020-02-12 | |||
| JP6720255B2 | 2020-07-08 | |||
| JP6912627B2 | 2021-08-04 | |||
| JP6912628B2 | 2021-08-04 |
Attorney, Agent or Firm:
Field Saki Satoshi
Kazunori Onami
Tomoyuki Teihiro
Kazunori Onami
Tomoyuki Teihiro