Title:
ADHESIVE SHEET, METHOD FOR PRODUCING LAMINATE, AND LAMINATE
Document Type and Number:
Japanese Patent JP2020111753
Kind Code:
A
Abstract:
To provide an adhesive sheet in which an adhesive layer has post curability and is excellent in workability when being post-cured.SOLUTION: An adhesive sheet 1 has an adhesive layer 11 in which an adhesive composition is in a semi-cured state, in which the adhesive composition contains a crosslinkable acrylic polymer, a crosslinking agent, a monomer having at least one a reactive double bond in the molecule and a polymerization initiator, a glass transition temperature (Tg) of a homopolymer when the monomer is polymerized is 30°C or higher, the adhesive layer has post curability, and the adhesive layer satisfies the following physical property group when being post-cured; a shear storage modulus G' measured at 23°C and a frequency of 1 Hz is 1×106 [Pa] or more, a shear storage modulus G' measured at 75°C and a frequency of 1 Hz is 1×105 [Pa] or more, and a probe tackiness value measured at 23°C is 1.5 N/5 mmφ or less.SELECTED DRAWING: Figure 1
Inventors:
YAMAGUCHI TAKAYU
SHIODA SHUNSUKE
YAMAMOTO MASAYUKI
SHIODA SHUNSUKE
YAMAMOTO MASAYUKI
Application Number:
JP2020038099A
Publication Date:
July 27, 2020
Filing Date:
March 05, 2020
Export Citation:
Assignee:
OJI HOLDINGS CORP
International Classes:
C09J7/38; B32B27/00; B32B27/30; C09J4/00; C09J7/20; C09J11/06; C09J133/00
Domestic Patent References:
| JP2014214198A | 2014-11-17 | |||
| JP2017066294A | 2017-04-06 | |||
| JPS60196956A | 1985-10-05 | |||
| JP2015030765A | 2015-02-16 |
Foreign References:
| WO2013061938A1 | 2013-05-02 | |||
| US20160122599A1 | 2016-05-05 |
Attorney, Agent or Firm:
Patent Service Corporation Patent Office Sykes