Method for the preparation of highly substituted granular starches
US4048435A · kind A · utility
13Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1976 |
| Grant date | Sep 13, 1977 |
| Priority date | — |
| Expiry date | Jul 12, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B31/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Highly substituted granular starches are prepared by reacting the starch in an aqueous system with a reagent capable of producing an acetal cross-linkage; reacting the resultant acetal cross-linked starch with a mono-functional esterifying or etherifying reagent under aqueous alkaline conditions and removing the acetal cross-linkages by treating under acid conditions. The highly substituted starches are particularly useful in operations, such as papermaking, wherein the cross-linkages can be removed and the starch readily dispersed during a relatively low pH starch cooking process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.