Title:
粘着剤層及び粘着フィルム
Document Type and Number:
Japanese Patent JP6588594
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an adhesive layer that does not cause errors in measurements of the surface hardness of a laminate made up of optical members bonded together, and also has both durability and reworkability, and provide an adhesive film.SOLUTION: An acrylic polymer contains, based on 100 pts.wt of (A)-(D) acrylic monomers in total, (E) a hydroxy group-containing copolymerizable vinyl monomer of 0.1-10 pts.wt.; (C) a nitrogen-containing vinyl monomer is a (meth) acrylic monomer containing an amide bond or an amino group; the acrylic polymer has an acid value of 0.1 or less; the acrylic polymer has Tg of -35°C or more; an adhesive composition contains an isocyanate compound as a crosslinker of 0.01-1.0 pts.wt, and a silane coupling agent of 0.01-0.5 pts.wt.; an adhesive layer has a gel fraction of 40-85%; the adhesive layer has a thickness of 1 μm-20 μm; and the adhesive layer of 10 μm in thickness has an adhesion of 1.5-8.0 N/25 mm.SELECTED DRAWING: None
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Inventors:
Takeshi Nagakura
Ryo Hasegawa
Hiroyuki Yoshida
Hishinuma Masayo
Ryo Hasegawa
Hiroyuki Yoshida
Hishinuma Masayo
Application Number:
JP2018077119A
Publication Date:
October 09, 2019
Filing Date:
April 12, 2018
Export Citation:
Assignee:
Fujimori Industry Co., Ltd.
International Classes:
C09J7/38; C09J11/06; C09J133/06; C09J133/14; C09J133/24; G02B5/30
Domestic Patent References:
| JP2014118487A | ||||
| JP2012201734A | ||||
| JP2008095064A | ||||
| JP2014234460A | ||||
| JP2010275385A | ||||
| JP2013212657A | ||||
| JP2016164214A | ||||
| JP2016172808A |
Foreign References:
| WO2013176457A1 | ||||
| US20120327510 |
Attorney, Agent or Firm:
Field Saki Satoshi
Kazunori Onami
Tomoyuki Teihiro
Kazunori Onami
Tomoyuki Teihiro