Title:
LAMINATE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/139981
Kind Code:
A1
Abstract:
A laminate production method including a sandwich lamination step in which a first laminate and a second laminate are stacked and integrated with a heat seal layer therebetween, wherein: the first laminate is provided with a first paper layer; the second laminate is provided with a second paper layer; at least one of the first laminate and the second laminate is provided with the heat seal layer; the sandwich lamination step is a step for integrating the first laminate and the second laminate with the heat seal layer therebetween; the heat seal layer includes an acrylic resin and a paraffin wax; and the glass transition temperature of the acrylic resin is between -25°C and 20°C inclusive.
Inventors:
TAKAHASHI RYOTA (JP)
USHIJIMA YOSUKE (JP)
USHIJIMA YOSUKE (JP)
Application Number:
PCT/JP2022/045883
Publication Date:
July 27, 2023
Filing Date:
December 13, 2022
Export Citation:
Assignee:
SAKATA INX CORP (JP)
International Classes:
B32B27/10; B32B27/30; B32B29/00; B32B37/12; B65D65/40; B65D65/46
Domestic Patent References:
| WO2020203346A1 | 2020-10-08 | |||
| WO2021153240A1 | 2021-08-05 |
Foreign References:
| JP2016504432A | 2016-02-12 | |||
| JPH0525796A | 1993-02-02 | |||
| JPH09188995A | 1997-07-22 |
Attorney, Agent or Firm:
ASAHINA & CO. (JP)
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