Immediate and high performance flexible packaging applications using thermal lamination and new primer technology
US11141962B2 · kind B2 · utility
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4References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 29, 2016 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Jul 29, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/70
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for preparing a flexible packaging material (6) by laminating at a temperature greater or equal to 50° C. a printed substrate coated with a primer (4) comprising poly(acrylic acid) and/or poly(methacrylic acid) with another substrate coated with a thermal active material (2), to prepare a high performance flexible packaging multilayer material (6) showing improved shelf-life, without requiring curing stage of intermediate layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.