Title:
ADHESIVE LAYER, ADHESIVE SHEET, MULTILAYER BODY AND METHOD FOR PRODUCING MULTILAYER BODY
Document Type and Number:
WIPO Patent Application WO/2020/230858
Kind Code:
A1
Abstract:
The present invention provides: an adhesive layer which enables the formation of an adhesive sheet that has low moisture permeability, while having excellent durability; an adhesive sheet which is provided with this adhesive layer; a multilayer body; and a method for producing a multilayer body. An adhesive layer according to the present invention contains an adhesive composition containing a polyolefin, a (meth)acrylic monomer and a hydrogen abstraction type initiator, and satisfies the physical properties (1) and (2) described below if post cured by being irradiated with an active energy ray so that the accumulated amount of light is 3,000 mJ/cm2. Physical property (1): In a tensile test measurement at a tension rate of 10 mm/min, the elongation at break is 1,200% or more and the stress at a strain of 1,000% is 0.40 N/mm2 or more. Physical property (2): The water vapor permeability at a thickness of 100 μm is 50 g/m2∙24 hr or less.
Inventors:
YAMAMOTO MASAYUKI (JP)
YAMAGUCHI TAKAMICHI (JP)
YAMAGUCHI TAKAMICHI (JP)
Application Number:
PCT/JP2020/019315
Publication Date:
November 19, 2020
Filing Date:
May 14, 2020
Export Citation:
Assignee:
OJI HOLDINGS CORP (JP)
International Classes:
B32B27/00; C09J4/02; C09J7/30; C09J11/06; C09J123/16
Domestic Patent References:
| WO2015129625A1 | 2015-09-03 | |||
| WO2016043268A1 | 2016-03-24 |
Foreign References:
| JP2017119847A | 2017-07-06 | |||
| JP2017203835A | 2017-11-16 | |||
| JP2018039863A | 2018-03-15 |
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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