Title:
HOT-MELT ADHESIVE SHEET
Document Type and Number:
Japanese Patent JP2023151005
Kind Code:
A
Abstract:
To provide a hot-melt adhesive sheet having an adhesive layer excellent in adhesion to an adherend and excellent in hot water resistance, acid resistance, and alcohol resistance.SOLUTION: In the hot-melt adhesive sheet according to the present invention, an adhesive layer formed of a hot-melt adhesive is laminated on at least one surface of a substrate. The hot-melt adhesive contains a crosslinked product of an adhesive composition containing a crosslinking agent and contains a polyurethane resin, an epoxy resin, an isocyanate-based crosslinking agent, and a crystalline polyester resin. The epoxy resin contains a bisphenol A type epoxy resin and a rubber-modified epoxy resin. The crystalline polyester resin has a number average molecular weight Mn of 33,000 or less and a glass transition temperature Tg of -5°C or lower. The isocyanate-based crosslinking agent is contained in an amount of 14 pts.mass or less based on 100 pts.mass of the total amount of the polyurethane resin and the crystalline polyester resin.SELECTED DRAWING: Figure 1
Inventors:
TAKAHATA RYOTA
TABUCHI AKITOMO
MUKOBATA KAZUMASA
TABUCHI AKITOMO
MUKOBATA KAZUMASA
Application Number:
JP2022060390A
Publication Date:
October 16, 2023
Filing Date:
March 31, 2022
Export Citation:
Assignee:
NITTOSHINKO CORP
International Classes:
C09J7/35; C09J163/02; C09J167/00; C09J175/04; H01M8/0284; H01M8/10
Attorney, Agent or Firm:
Patent Attorney Corporation Fujimoto Partners
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