Polygalactomannan gum formate esters
US4011393A · kind A · utility
7Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1975 |
| Grant date | Mar 8, 1977 |
| Priority date | — |
| Expiry date | Apr 28, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B37/0096
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention provides novel guar gum formate esters having a degree of substitution between about 0.01 and 3.0, and further provides a process for producing guar gum formate esters by the interaction of guar gum powder or guar gum splits with concentrated formic acid. The invention process represents a general method for formylation of polygalactomannan gums. The polygalactomannan gum formate esters are useful as flocculants, and as sizing agents for paper and textiles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.