Catalyzed process for glucamide detergents
US5338487A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1993 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Jan 26, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C231/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved process for manufacturing a linear glucamide surfactant comprises reacting an N-alkylglucamine, e.g., N-methylglucamine, a fatty ester, e.g., coconut methyl ester and a catalyst selected from trilithium phosphate, trisodium phosphate, tripotassium phosphate, tetrasodium pyrophosphate, tetrapotassium pyrophosphate, pentasodium tripolyphosphate, pentapotassium tripolyphosphate, lithium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide, lithium carbonate, sodium carbonate, potassium carbonate, disodium tartrate, dipotassium tartrate, sodium potassium tartrate, trisodium citrate, tripotassium citrate, sodium basic silicates, potassium basic silicates, sodium basic aluminosilicates, potassium basic aluminosilicates and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.