Water barrier laminate
US10556411B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2016 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Oct 20, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2457/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A water barrier laminate (11) including a plastic base material (1) that faces the atmosphere of a high water content, as well as a first inorganic barrier layer (3), a water-trapping layer (5) and a second inorganic barrier layer (7) formed in this order on the plastic base material (1) on the side that does not face the atmosphere of the high water content, wherein an auxiliary water-trapping layer (10) is formed on the second inorganic barrier layer (7) on the side opposite to the water-trapping layer (5) to trap the water from the side surface, the auxiliary water-trapping layer (10) being located on the surface that faces the atmosphere of a low water content or being located in a region at a distance of not more than 20 μm from the surface that faces the atmosphere of the low water content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.