Cationic polysaccharide, its preparation and use
US8304533B2 · kind B2 · utility
3Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2007 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Mar 24, 2028 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H19/54
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to polysaccharide, preferably starch, of high purity having cationic degree of substitution over 0.50 and bound nitrogen index after cationization reaction stage over 0.75, and to preparation thereof as well as to its use in making of paper or paperboard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.