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Title:
BARRIER FILM, LAMINATE, AND PACKAGING PRODUCT
Document Type and Number:
WIPO Patent Application WO/2020/250969
Kind Code:
A1
Abstract:
[Problem] To improve the adhesion of a deposition film to the substrate. [Solution] This barrier film is provided with: a substrate including a polyester; and a deposition film containing aluminum oxide. Element-bonded Al2O3 and element-bonded CN are at least detected by etching the barrier film from the deposition film side, using a time-of-flight secondary ion mass spectrometry method. The peak intensity of a peak of the element-bonded CN detected at the interface between the substrate and the deposition film is at least 0.15 times the maximum value of an intensity of the element-bonded Al2O3.

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Inventors:
IWAHASHI HIROYUKI (JP)
TAKAHASHI MASAHIRO (JP)
KISHIMOTO YOSHIHIRO (JP)
SHIBATA TAKAHUMI (JP)
Application Number:
PCT/JP2020/023006
Publication Date:
December 17, 2020
Filing Date:
June 11, 2020
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
B32B9/00; B32B27/36; B65D65/40; C08J7/048
Domestic Patent References:
WO2014050951A12014-04-03
WO2003009998A12003-02-06
Foreign References:
JP2013142161A2013-07-22
JP2020075480A2020-05-21
JPH07233463A1995-09-05
JP2017177343A2017-10-05
Other References:
See also references of EP 3984738A4
Attorney, Agent or Firm:
NAKAMURA Yukitaka et al. (JP)
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