Title:
硬化接着剤シートを含む積層体の製造方法
Document Type and Number:
Japanese Patent JP6444990
Kind Code:
B2
Abstract:
Problem: To provide a method for producing a laminate comprising a thick, highly transparent cured adhesive sheet exhibiting flow characteristics accompanied by satisfactory fluidity and satisfactory initial adhesion to an adherend before irradiation, and satisfactory hardness (in particular, a high storage modulus) after irradiation. Solution: A method for producing a laminate comprising a first substrate, a second substrate, and a cured adhesive sheet disposed therebetween, the method comprising steps of: forming into a sheet a radiation-curable adhesive sheet precursor comprising a polymer/monomer mixture comprising a partially polymerized (meth) acrylic monomer, a monomer having radiation reactive sites activated by short-wavelength radiation of a first wavelength or less, and a photoinitiator for initiating polymerization of the polymer/monomer mixture and the radiation reactive site-possessing monomer via radiation of a wavelength greater than the first wavelength; irradiating the precursor with radiation of a wavelength greater than the specific wavelength to polymerize the radiation-curable adhesive sheet precursor, forming a radiation-curable adhesive sheet; disposing the radiation-curable adhesive sheet adjacent to at least one surface of the first substrate; disposing the second substrate adjacent to a radiation-curable adhesive sheet; applying heat and/or pressure to the radiation-curable adhesive sheet; and irradiating the radiation-curable adhesive sheet with radiation comprising short-wavelength radiation of a first wavelength or less to obtain a cured adhesive sheet.
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Inventors:
Toshihiro Suwa
Takeda Hikaru
Takeda Hikaru
Application Number:
JP2016510726A
Publication Date:
December 26, 2018
Filing Date:
April 22, 2014
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
International Classes:
B32B27/00; B29C65/52; B32B37/12; C09J4/02; C09J7/00; C09J11/06; C09J131/00
Domestic Patent References:
| JP2014152294A | ||||
| JP2009114451A | ||||
| JP2013040256A | ||||
| JP2007503518A |
Foreign References:
| WO2012032995A1 |
Attorney, Agent or Firm:
Taro Akazawa
Wakako Nomura
Tsukuda Seigen
Ryohei Yoshino
Wakako Nomura
Tsukuda Seigen
Ryohei Yoshino