Process for making aqueous betaine solutions
US5696287A · kind A · utility
4Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1996 |
| Grant date | Dec 9, 1997 |
| Priority date | — |
| Expiry date | Jul 22, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C227/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for producing high purity aqueous solutions of betaine by reaction of substantially equal molar ratios of trimethylamine and an alkaline salt of monochloroacetic acid in aqueous solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.