Title:
粘着剤層及び粘着フィルム
Document Type and Number:
Japanese Patent JP6720255
Kind Code:
B2
Abstract:
To provide an adhesive layer that can form an adhesive layer having excellent reworkability and high adhesion performance although it is thin film, and an adhesive film prepared therewith.SOLUTION: In the adhesive layer, an acrylic polymer is a copolymer obtained by copolymerizing (A) a total of 100 pts.wt. of a monomer group consisting of an alkyl (meth) acrylate monomer with a C1-C14 alkyl group and a (meth) acrylate monomer having an aromatic group, and (B) a hydroxy group-containing copolymerizable vinyl monomer of 0.1-3.5 pts.wt., without containing a carboxyl group-containing monomer, the copolymer having an acid value of 0.1 or less and a weight average molecular weight of 1,000,000 or more, wherein butylacrylate is contained at a rate of at least 30 pts.wt. or more, and the methyl (meth) acrylate monomer is contained at a rate of 20 pts.wt. or more, or the (meth) acrylate monomer having an aromatic group is contained at a rate of 5-30 pts.wt., and the adhesive layer has a refractive index of 1.47-1.50.SELECTED DRAWING: None
Inventors:
Takeshi Nagakura
Ryo Hasegawa
Hiroyuki Yoshida
Hishinuma Masayo
Ryo Hasegawa
Hiroyuki Yoshida
Hishinuma Masayo
Application Number:
JP2018165333A
Publication Date:
July 08, 2020
Filing Date:
September 04, 2018
Export Citation:
Assignee:
Fujimori Industry Co., Ltd.
International Classes:
C09J7/38; B32B27/00; B32B27/30; C09J11/06; C09J133/04; G02B5/30
Domestic Patent References:
| JP2009215528A | ||||
| JP2009544765A | ||||
| JP2012247574A | ||||
| JP2012102276A | ||||
| JP2002173656A | ||||
| JP2012208247A | ||||
| JP2014152317A | ||||
| JP6644971B2 |
Attorney, Agent or Firm:
Field Saki Satoshi
Kazunori Onami
Tomoyuki Teihiro
Kazunori Onami
Tomoyuki Teihiro