Title:
BARRIER FILM
Document Type and Number:
WIPO Patent Application WO/2024/070760
Kind Code:
A1
Abstract:
The present invention provides a barrier film which is capable of achieving a good balance between barrier properties after a Gelbo flex test and barrier properties after retort processing. This barrier film is obtained by sequentially stacking a resin base material, an aluminum oxide vapor deposition film, and if necessary, a coating layer in this order; and the aluminum oxide vapor deposition film has a peak top ratio P of 1.05 to 1.60 if an X-ray absorption fine structure analysis is performed from the aluminum oxide vapor deposition film surface side of the barrier film, the peak top ratio P being defined below. P = (intensity peak top around 1,572 eV)/(intensity peak top around 1,566 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/JP2023/033686
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:
| JPH09323373A | 1997-12-16 | |||
| JP2002187231A | 2002-07-02 | |||
| 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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