Title:
BARRIER FILM
Document Type and Number:
WIPO Patent Application WO/2024/070759
Kind Code:
A1
Abstract:
Provided is a barrier film capable of having both barrier properties after a Gelbo flex test and barrier properties after a retort treatment. This barrier film comprises a resin base, an aluminum oxide vapor deposition film, and an optional covering layer, which are layered in the stated order. The peak top ratio P, as defined in the following, of the aluminum oxide vapor deposition film is not less than 0.70 but less than 1.05 as measured by X-ray absorption microstructural analysis conducted from the aluminum oxide vapor deposition film side of the barrier film. P = (intensity peak top at or near 1572 eV)/(intensity peak top at or near 1566 eV)
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Inventors:
MORIMOTO TARO (JP)
SHIBATA TAKAFUMI (JP)
MIZOSHIRI MAKOTO (JP)
TAZAWA HIDETSUGU (JP)
YOKOKAWA YUKA (JP)
HARADA RYUTARO (JP)
SAWADA MASANORI (JP)
MATSUI SHIGEKI (JP)
SHIBATA TAKAFUMI (JP)
MIZOSHIRI MAKOTO (JP)
TAZAWA HIDETSUGU (JP)
YOKOKAWA YUKA (JP)
HARADA RYUTARO (JP)
SAWADA MASANORI (JP)
MATSUI SHIGEKI (JP)
Application Number:
PCT/JP2023/033685
Publication Date:
April 04, 2024
Filing Date:
September 15, 2023
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
B32B9/00; B32B27/06; B65D65/40
Foreign References:
| JPH11170427A | 1999-06-29 | |||
| JP2022128500A | 2022-09-01 | |||
| JP2017177343A | 2017-10-05 | |||
| JP2020049941A | 2020-04-02 | |||
| JP2020044708A | 2020-03-26 | |||
| JP2022142332A | 2022-09-30 | |||
| JP2022142333A | 2022-09-30 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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