High catalyst process for glucamide detergents
US5338486A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1993 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Jan 21, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D11/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Improved process for manufacturing a linear glucamide surfactant comprising reacting an N-alkylglucamine, e.g., N-methylglucamine, a fatty ester, e.g., coconut methyl ester and a catalyst at high concentration selected from trilithium phosphate, trisodium phosphate, tripotassium phosphate, tetrasodium pyrophosphate, tetrapotassium pyrophosphate, pentasodium tripolyphosphate, pentapotassium tripolyphosphate, 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.