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Title:
HEAT-ADHESIVE FILM
Document Type and Number:
Japanese Patent JP2020110930
Kind Code:
A
Abstract:
To provide a heat-adhesive film capable of maintaining an adhesive strength in a hot and humid environment by suppressing a decrease in heat-adhesive strength over a long period of time, and also capable of suppressing deterioration of working environment, air pollution, and indoor environment pollution.SOLUTION: There is provided a film 10 at which a heat-adhesive layer 40 is formed on at least one surface of a thermoplastic resin substrate 20 via an anchor coat layer 30, in which the anchor coat layer is a polyurethane resin layer formed by using an aqueous-dispersion body composed of a polyurethane resin obtained by reacting a polyisocyanate component which is an aliphatic polyisocyanate with a polyol component which is polyether polyol or polyester polyol, and the heat-adhesive layer is a layer formed by an aqueous dispersion body containing at least one kind selected from the group of an aqueous dispersion body having a copolymer of vinyl chloride and vinyl acetate monomer, or an aqueous dispersion body having a copolymer of acryl, versatic vinylate and vinyl acetate monomer.SELECTED DRAWING: Figure 1

Inventors:
OKUMURA ATSUSHI
WATANABE TATSUYA
Application Number:
JP2019001120A
Publication Date:
July 27, 2020
Filing Date:
January 08, 2019
Export Citation:
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Assignee:
FUTAMURA CHEMICAL CO LTD
International Classes:
B32B27/40; B32B27/30; B32B27/32; C09D5/00; C09D5/02; C09D175/06; C09D175/08; C09J7/50; C09J127/06; C09J131/04
Domestic Patent References:
JPS4721438A
JP2003226851A2003-08-15
Attorney, Agent or Firm:
Noriaki Goto
Daiki Kato