Coating process for papers and cardboards and its use for obtaining paper which has a good smoothness
US5219619A · kind A · utility
14Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1992 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Feb 24, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31895
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Coating process for papers and cardboards, in which cross-linked polymers insoluble in water, containing in molar proportions in the polymerized state: PA0 50 to 99.995% acrylic acid at least 70% of which is in the form of ammonium acrylate, PA0 0.005 to 0.5% bisacrylamidoacetic acid which has about the same neutralization ratio as acrylic acid and, PA0 the complement to 100% with acrylamide, are used as coating agent, and use in paper coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.