Process for production of polygalactomannan ethers
US4169945A · kind A · utility
17Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1978 |
| Grant date | Oct 2, 1979 |
| Priority date | — |
| Expiry date | Jan 5, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/922
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention provides an improved process for producing alkyl ethers of polygalactomannan gum by contacting polygalactomannan gum with alkyl halide in the presence of a metal hydroxide catalyst and a quaternary ammonium phase-transfer agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.