Cleaning compositions based on N-alkyl pyrrolidones having about 8 to about 12 carbon atoms in the alkyl group and corresponding methods of use
US5503778A · kind A · utility
44Cited by
67References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1994 |
| Grant date | Apr 2, 1996 |
| Priority date | — |
| Expiry date | Nov 30, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/43
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Cleaning compositions are presented which surprising exhibit increased cleaning performance as the amount of solubilizing coupler is increased beyond that necessary to fully solubilize a very slightly water-soluble organic solvent component. Methods of use of the compositions to remove hydrophobic soils and soap scum are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.