Title:
LAMINATE, PACKAGING BAG, AND PRODUCTION METHOD FOR LAMINATE
Document Type and Number:
WIPO Patent Application WO/2024/048347
Kind Code:
A1
Abstract:
A laminate comprising a first film, an adhesive layer, and a second film in this order, wherein: the first film and the second film are laminated with the adhesive layer therebetween, and at least one of the first film and the second film has a gas barrier layer; the adhesive layer is a cured product of a solvent-free two-part curable polyurethane adhesive; and the area ratio of air bubbles based on the area of the adhesive layer is less than or equal to 4% when observing the adhesive layer from the laminating direction of the laminate.
Inventors:
ARITA TAKESHI (JP)
FUKUNAGA GODAI (JP)
MASUKO TATSUYA (JP)
KUDO SHIGEKI (JP)
FUKUNAGA GODAI (JP)
MASUKO TATSUYA (JP)
KUDO SHIGEKI (JP)
Application Number:
PCT/JP2023/029981
Publication Date:
March 07, 2024
Filing Date:
August 21, 2023
Export Citation:
Assignee:
TOPPAN HOLDINGS INC (JP)
International Classes:
B32B27/40; B32B7/12; B32B27/00; B65D65/40; C09J175/04
Domestic Patent References:
| WO2022172760A1 | 2022-08-18 | |||
| WO2020129668A1 | 2020-06-25 | |||
| WO2016204065A1 | 2016-12-22 |
Foreign References:
| JP2021066031A | 2021-04-30 | |||
| JP2018162420A | 2018-10-18 | |||
| JP2020066639A | 2020-04-30 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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