Method for the production of heat-sealing barrier paper
US10494768B2 · kind B2 · utility
2Cited by
3References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2015 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Oct 3, 2036 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for the production of a heat-sealable paper that forms a barrier to water vapour, in particular having a water vapour permeability of at most 150 g/m2/24 h measured according to ASTM F1249 under so-called tropical conditions of 38° C. and 90% relative humidity, in which at least one coating layer comprising at least one thermoplastic film-forming polymer is applied in-line on the paper-making machine to the fibrous substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.