Patent 5338487 Issued on August 16, 1994. Estimated Expiration Date: January 26, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
516/203, The agent contains organic compound containing nitrogen, except if present soley as NH4+510/350, Nitrogen containing surfactant devoid of covalently bonded anionic substituents which is admixed with a diverse non-soap surfactant510/356, Oxygen containing surfactant devoid of covalently bonded anionic substituents (e.g., polyethoxylated alcohol, amine oxide, etc.)510/433, Nitrogen in organic surfactant devoid of covalently bonded anionic substituents510/502, Hydroxy in the component510/535, Surfactant composition for cleaning agents (other than raw soap)554/66Hydroxyalkyl substituent on the amido nitrogen
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.
Other References
Synthesis of Long Chain N-Alkyllactylamines from Unprotected Lactose-A new Series of Non-Ionic Surfactants, Latge et al. J. Dispersion Science and Technology, 12(3&4), pp. 227-237 (1991)
U.S. patent application Ser. No. 07/755,900, filed Sep. 6, 1991 (Ofosu-Asante et al) entitled Detergent Compositions Containing Calcium and Polyhydroxy Fatty Acid Amide (not enclosed)
"N-D-Gluco-N-methylalkanamide Compounds, a New Class of Non-Ionic Detergents For Membrane Biochemistry", Biochem. J. (1982) vol. 207, pp. 363-366, Hildreth H. Kelkenberg, Tenside Surfactants Detergents 25 (1988) pp. 8-13
Relative Stabilities of d-Glucose-Amine Derivatives, Mohammad and Olcott, JACS, Apr. 1947, p. 969
[23] 1-Amino-1-deoxy-D-glucitol, Long and Bollenback, Meth. Carbohyd. Chem., vol. 2, (1963), pp. 79-83
The Reaction of Glucose with Some Amines, Mitts and Hixon, JACS, vol. 66, (1944), pp. 483-486
Synthesis of 14 C-Labeled N-Methylglucamine, Heeg et al, Can. J. of Pharmaceutical Sciences, vol. 10, No. 3 (1975), pp. 75-76
Derwent Abstract, 91-183/88 (Corresponding to JO3112904 91.05.14)
Chemical Abstracts, CA 84(2):8854M (Corresponding to DE2404070
January 26, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
