Increasing paper strength by surface treatment
US11781271B2 · kind B2 · utility
0Cited by
3References
14Claims
0Family size
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Key dates
| Filing date | Mar 13, 2020 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Sep 15, 2040 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This method for treating the surface of paper and/or one of the layers thereof, comprises the following successive steps:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.