Surface application of polymers to improve paper strength
US8900412B2 · kind B2 · utility
7Cited by
22References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2011 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Oct 31, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/64
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Stable, coating compositions are disclosed. The compositions comprise an aqueous solution of cationic polymer, starch, and a stabilizing agent. Method of using the coating composition to improve the dry strength of paper is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.