Surface active lactams
US5294644A · kind A · utility
70Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1991 |
| Grant date | Mar 15, 1994 |
| Priority date | — |
| Expiry date | Feb 12, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/07
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to properties and uses of N-hydrocarbon substituted lactams, particularly N-alkyl substituted lactams having the formula ##STR1## wherein R' is a hydrophobic radical such as linear or branched chain alkyl group containing from 8 to 27 carbon atoms, most preferably micelle forming pyrrolidones having 12 to 16 carbon atoms in the R' group. The invention particularly relates to the uses of the N-hydrocarbon substituted lactams which involve surfactant properties, such as solubility, wetting, viscosity building, emulsifying and/or complexing properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.