Surface application of polymers and polymer mixtures to improve paper strength
US8696869B2 · kind B2 · utility
12Cited by
17References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2010 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Jul 15, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/64
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Stable, coating compositions useful for enhancing the dry strength of paper are disclosed. The compositions comprise an aqueous solution of nearly neutral polymer, cationic polymer and starch. 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.