Title:
CUP-STATE CONTAINER
Document Type and Number:
Japanese Patent JP2016078907
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a cup-state container formed by closing one end opening of a cylindrical trunk 2 with a bottom material 1, excellent in gas barrier property.SOLUTION: A bottom material is formed of a substrate 11 and a gas barrier layer 12, in which the gas barrier layer is a layer including a gas barrier composite structure formed by reaction of a polyvalent metal compound and a phosphorus compound. The composite structure is a composite structure in which metal atoms M and phosphorus atoms are bound by covalent bond expressed by M-O-P-O-M or M-O-(P-O-P)-O-M, when the polyvalent metal atom is expressed by M, in which plural phosphorus atoms P coordinate with the metal atom M as a center, and plural metal atoms M coordinate with the phosphorus atom P as a center. Therefore, the composite structure has a fine structure in which atoms are bound by covalent bond in a mesh-state, as the result, high gas barrier property is exhibited. In addition, the composite structure is excellent in resistance to bending or heat.SELECTED DRAWING: Figure 3
Inventors:
UMEYAMA HIROSHI
ONUMA YUTA
ONUMA YUTA
Application Number:
JP2014213483A
Publication Date:
May 16, 2016
Filing Date:
October 20, 2014
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
B65D3/22; B32B9/00
Domestic Patent References:
| JP2012020769A | 2012-02-02 | |||
| JPH09164626A | 1997-06-24 | |||
| JP2012066868A | 2012-04-05 |
Foreign References:
| WO2013051287A1 | 2013-04-11 | |||
| WO2013051288A1 | 2013-04-11 | |||
| WO2011122036A1 | 2011-10-06 |
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