Pollution-free cationization of starch
US4281109A · kind A · utility
15Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1980 |
| Grant date | Jul 28, 1981 |
| Priority date | — |
| Expiry date | Mar 3, 2000 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/29
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Cationic starch is prepared by an essentially pollution-free method wherein starch is reacted with a mixture of an epoxide etherifying reagent and alkali catalyst using substantially dry reaction conditions. The resultant cationic starches find particular use in papermaking applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.