Biodegradable aqueous filter cleaner formulation
US5324443A · kind A · utility
12Cited by
15References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1993 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Feb 1, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/085
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A biodegradable aqueous filter cleaning formulation containing effective amounts of a biodegradable carboxylic acid and/or salt thereof, a nonionic biodegradable surfactant based on oxyalkylated linear alcohols, and a water soluble organic solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.