Title:
GAS BARRIER LAYERED PRODUCT, PACKAGING MATERIAL, PACKAGE AND PACKAGED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2022/107858
Kind Code:
A1
Abstract:
Provided by an embodiment of the present invention is a gas barrier layered product comprising, in the stated order, a substrate, an inorganic vapor deposited layer containing an inorganic oxide, and a covering layer. The covering layer contains a carboxyl group-containing polymer (a), polyvalent metal-containing particles (b), a surfactant (c) and a silicon-containing compound (d). The silicon-containing compound (d) is at least one type selected from the group consisting of a silane coupling agent having a specific structure, a hydrolyzate thereof and a condensate thereof. The molar ratio of [number of moles (dt) of silicon-containing compound (d)/number of moles (at) of carboxyl groups in carboxyl group-containing polymer (a)], which is expressed by (dt/at), is 0.15-6.10%. The thickness of the covering layer is 230-600 nm. However, (d) in the molar ratio of (d)/(a) is the mass of the silicon-containing compound (d) calculated in terms of silane coupling agent.
Inventors:
MAEDA MASAKI (JP)
Application Number:
PCT/JP2021/042484
Publication Date:
May 27, 2022
Filing Date:
November 18, 2021
Export Citation:
Assignee:
TOPPAN INC (JP)
International Classes:
B32B9/00; B32B27/18; B32B27/30; B65D65/40
Domestic Patent References:
| WO2020203766A1 | 2020-10-08 |
Foreign References:
| JP2016199722A | 2016-12-01 | |||
| JP2016193509A | 2016-11-17 | |||
| JP2005126528A | 2005-05-19 | |||
| JP2020186774A | 2020-11-19 | |||
| JP2020023130A | 2020-02-13 |
Other References:
"Microparticle Engineering System", vol. I, 2001, FUJI TECHNO SYSTEM, pages: 362 - 365
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (JP)
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