Title:
STRUCTURE, METHOD FOR PRODUCING STRUCTURE, OIL-RESISTANT PAPER, GAS BARRIER PAPER, FLAVOR BARRIER PAPER AND PACKAGING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2024/090483
Kind Code:
A1
Abstract:
The present invention provides: a structure which is suppressed in cracking of a layer that has heat sealing properties, while having excellent water vapor barrier properties, heat sealing properties and oxygen barrier properties; a method for producing this structure; and oil-resistant paper, gas barrier paper, flavor barrier paper and a packaging material, each of which uses this structure. This structure is obtained by sequentially superposing a layer A, a layer B and a layer C in this order on at least one surface of a paper base material; the layer A contains at least one polymer that is selected from the group consisting of an olefin polymer, a styrene polymer and a polyester polymer; the layer B contains a vinyl alcohol polymer; and the layer C contains a polymer that has a glass transition temperature of -100°C to 5°C.
Inventors:
YAMAMOTO AYUMU (JP)
TAOKA YUTA (US)
TAOKA YUTA (US)
Application Number:
PCT/JP2023/038537
Publication Date:
May 02, 2024
Filing Date:
October 25, 2023
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
B32B27/10; B32B7/027; B32B27/08; B65D65/40
Domestic Patent References:
| WO2019069963A1 | 2019-04-11 | |||
| WO2022059324A1 | 2022-03-24 | |||
| WO2022009608A1 | 2022-01-13 |
Foreign References:
| JP2021075827A | 2021-05-20 | |||
| JP2020066216A | 2020-04-30 | |||
| JP2013236013A | 2013-11-21 | |||
| JP2021020398A | 2021-02-18 | |||
| JP2020196259A | 2020-12-10 | |||
| JP2020163675A | 2020-10-08 |
Attorney, Agent or Firm:
IKEDA Yoshinori (JP)
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