Laminated packaging material
US5491018A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1995 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Mar 16, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a laminated packaging material including a substrate, a silicon oxide layer, an adhesive layer or anchor coat layer and a heat-sealable resin layer which are successively laminated, the adhesive layer or anchor coat layer is formed by coating a water-based adhesive composition or a water-based anchor coat agent composition, respectively, on the silicon oxide layer, followed by drying. On the anchor coat layer, a solvent-free adhesive layer may be provided. Also in a laminated packaging material including a substrate, a silicon oxide layer, an ink layer, an adhesive layer and a heat-sealable resin layer which are successively laminated, the ink layer is formed by coating a water-based ink composition on the silicon oxide layer, followed by drying. In this case, the adhesive layer may preferably be formed by coating a water-based adhesive composition on the ink layer, followed by drying. When an oil-based ink is used as the ink composition, the anchor coat layer may preferably be formed by coating a water-based anchor coat agent composition on the silicon oxide layer, followed by drying.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.