Printing paper and newsprint paper with improved water absorptivity and the manufacturing process
US5750253A · kind A · utility
12Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1995 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | Dec 28, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31891
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Printing paper such as newspaper printing paper, the water absorbency of which is controlled by coating material for controlling water absorbency on the surface of base paper, wherein the coating material contains component A which is at least one water-soluble polyacrylamide selected from nonionic polyacrylamides, cationic polyacrylamides, and water-soluble polyacrylamides, and component B which is water-soluble anionic polymers of monomers having hydrophobic substitute(s) and monomers having at least carboxyl group(s) or sulfone group(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.