Reagent for preparing polycationic polysaccharides
US5349089A · kind A · utility
4Cited by
26References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1993 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | Jan 11, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B31/125
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Cationic polysaccharide derivatives are prepared by reacting a polysaccharide with a polycationic reagent having one polysaccharide reactive group and at least two cationic groups. Suitable reagents include polycationic alkyl, aryl, alkaryl, cycloaliphatic, or heterocyclic amines, some of which are novel compositions. The polycationic polysaccharide derivatives prepared from these reagents are useful in the manufacture of paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.