Preparation of a cationic starch paste
US4554021A · kind A · utility
8Cited by
15References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1982 |
| Grant date | Nov 19, 1985 |
| Priority date | — |
| Expiry date | May 28, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B31/125
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a cationic starch dispersion wherein an alkaline, gelatinized starch is reacted with a cationic reagent either concurrently with, or subsequently to, the cooking process resulting in a product in which the cationic reagent is chemically bound to the starch molecule. The process is conducive to on-site preparation of a cationic starch derivative which can be utilized without additional treatment as a papermaking adjunct, textile size, waste-water treatment or tailings flocculent, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.