Alkaline carpet cleaning composition comprising a pyrrolidone-based solvent
US6693068B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2001 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | May 9, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/33
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Improved aqueous carpet cleaning compositions which are ideally suited for use in machinery designed or used in the mechanical cleaning of carpets. The compositions are alkaline, and include one or more detersive surfactants, preferably one or more nonionic surfactants and one or more anionic surfactants; at least about 2% wt. of aminopolycarboxylic acid salt; an organic solvent constituent, preferably which includes a pyrrolidone based organic solvent constituent and excludes glycol and glycol ether solvents; an anti-resoiling agent; and water in quantum sufficient to provide 100% wt. of the compositions, as well as further optional constituents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.