Gas barrier laminate having excellent water barrier property
US9676171B2 · kind B2 · utility
4Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Feb 6, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A gas barrier laminate 10 having an inorganic barrier layer 3 and a water-trapping layer 5 that are formed on a plastic base material 1, the water-trapping layer 5 including a matrix of a cationic polymer (a) in which is distributed a hygroscopic agent (b) having such a hygroscopic property as to attain a humidity lower than a humidity that can be attained by using the matrix. The gas barrier laminate exhibits super barrier property against water despite of a structure of a small number of layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.