Title:
GAS BARRIER FILM, LAMINATE, AND PACKAGING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2022/270490
Kind Code:
A1
Abstract:
This gas barrier film comprises a substrate having polyethylene as the main resin component, and an inorganic oxide layer formed on a first surface side of the substrate. The birefringence ΔN of a first surface, calculated on the basis of measurement by a parallel Nicol rotation method, is 0-0.007, and the proportion of the polyethylene in the gas barrier film as a whole is at least 90 mass%.
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Inventors:
TANAKA RYOTA (JP)
OMORI HARUKA (JP)
OSAWA KENTA (JP)
MATSUHISA KENJI (JP)
OMORI HARUKA (JP)
OSAWA KENTA (JP)
MATSUHISA KENJI (JP)
Application Number:
PCT/JP2022/024648
Publication Date:
December 29, 2022
Filing Date:
June 21, 2022
Export Citation:
Assignee:
TOPPAN INC (JP)
International Classes:
B32B9/00; B32B27/32; B65D65/40; C09J7/30
Domestic Patent References:
WO2021029156A1 | 2021-02-18 | |||
WO2019189092A1 | 2019-10-03 | |||
WO2003009998A1 | 2003-02-06 |
Foreign References:
JP2013022918A | 2013-02-04 | |||
JP2000355068A | 2000-12-26 | |||
JP2004203023A | 2004-07-22 | |||
JP2001157705A | 2001-06-12 | |||
US20190022988A1 | 2019-01-24 | |||
US20110226723A1 | 2011-09-22 | |||
JP2021102659A | 2021-07-15 | |||
JP2021102660A | 2021-07-15 | |||
JP6191221B2 | 2017-09-06 | |||
JP2000254994A | 2000-09-19 | |||
JP4373797B2 | 2009-11-25 | |||
JP2020055157A | 2020-04-09 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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