Fluid compositions containing polyhydroxy fatty acid amides
US5620952A · kind A · utility
10Cited by
10References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1996 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Mar 11, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D11/0094
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Stock solutions of polyhydroxy fatty acid amide surfactants at high concentrations are characterized by their unfortunate tendency to thicken, or gel, on storage. Mild heating and the inclusion of carboxylates such as oxydisuccinate, citrate or tartrate-succinate maintain the viscosity of such solutions below about 2,000 centipoise, even at temperatures around 30.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.