Packaging material
US12091584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2020 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Feb 27, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2467/006
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention aims to provide a packaging material having excellent printed image quality as well as excellent laminate strength and heat sealability. Provided is a packaging material including at least: a base film, a primer layer, a printed layer, an adhesive layer, and a sealant film in a stated order, the primer layer being formed of a primer composition containing a water-soluble polyvalent metal salt, a chlorinated polyolefin emulsion, and at least one selected from the group consisting of an acrylic emulsion, a vinyl acetate emulsion, and a urethane-modified polyester resin, the printed layer being formed of a printing ink containing a polyester polyurethane resin, the adhesive layer being formed of an aliphatic ester adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.