Title:
LAMINATE, PACKAGING FILM, AND METHOD FOR MANUFACTURING LAMINATE
Document Type and Number:
WIPO Patent Application WO/2024/048470
Kind Code:
A1
Abstract:
This laminate (1) comprises a base material (2) and a heat seal layer (3). The heat seal layer (3) is a dried article of a coating composition. The coating composition contains a resin component comprising a copolymer of 4-methyl-1-pentene and an α-olefin (excluding 4-methyl-1-pentene) and/or a modified form of the copolymer. In the copolymer, the content ratio for constituent units derived from 4-methyl-1-pentene is 50-99 mol% inclusive, and the content ratio for constituent units derived from the α-olefin is 1-50 mol% inclusive, relative to the total amount of constituent units derived from 4-methyl-1-pentene and constituent units derived from the α-olefin. The oxygen transmission coefficient and the carbon dioxide transmission coefficient of the laminate are each 1000 cm3·mm/(m2·24hr·atm) or greater.
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Inventors:
SAKAMOTO NATSUKI (JP)
HIROTA YOSHIHITO (JP)
HIROTA YOSHIHITO (JP)
Application Number:
PCT/JP2023/030821
Publication Date:
March 07, 2024
Filing Date:
August 25, 2023
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
B32B27/12; B65D65/40; C08J7/048
Foreign References:
| JPH07233354A | 1995-09-05 | |||
| JP2013194132A | 2013-09-30 | |||
| JP2016190326A | 2016-11-10 | |||
| JP2016023308A | 2016-02-08 | |||
| JP2016023307A | 2016-02-08 | |||
| JP2021155487A | 2021-10-07 |
Attorney, Agent or Firm:
IKUMI PATENT ATTORNEYS OFFICE (JP)
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