Title:
METHOD FOR PRODUCING MULTILAYER FILM, AND MULTILAYER FILM
Document Type and Number:
WIPO Patent Application WO/2024/018705
Kind Code:
A1
Abstract:
The present invention provides: a method for producing a multilayer film, the method being capable of laminating a multilayer film of three or more layers, which include an aluminum foil as an intermediate layer, with use of a solvent-free adhesive; and a multilayer film. The present invention provides a method for producing a multilayer film in which three or more films are bonded with each other, the method comprising: a first lamination step in which a solvent-free adhesive is applied to a first film and a second film is superposed thereon so as to be laminated into a first intermediate; and a second lamination step in which a solvent-free adhesive is applied to the first intermediate and a third film is superposed thereon so as to be laminated. With respect to this method for producing a multilayer film, among the first film and the second film, one that is superposed on the third film, with a second adhesive coating layer being interposed therebetween, is formed of an aluminum foil.
Inventors:
GOTOU OSAMU (JP)
SAEKI MAYUMI (JP)
SAEKI MAYUMI (JP)
Application Number:
PCT/JP2023/014803
Publication Date:
January 25, 2024
Filing Date:
April 12, 2023
Export Citation:
Assignee:
TOYO SEIKAN CO LTD (JP)
International Classes:
B32B37/12; B05D1/28; B05D1/36; B05D7/14; B05D7/24; B29C65/48; B32B27/00
Foreign References:
| JP2001164229A | 2001-06-19 | |||
| JP2020109151A | 2020-07-16 | |||
| JP2001172602A | 2001-06-26 | |||
| JP2023073092A | 2023-05-25 |
Attorney, Agent or Firm:
FUJIMOTO Nobuo et al. (JP)
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