Method and compositions for cleaning aluminum cans
US11535818B2 · kind B2 · utility
1Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2018 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Dec 19, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/44
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition, kit and method useful in a multi-stage washing method for cleaning an aluminum or aluminum alloy containers while reducing hazardous exposure of workers to toxic levels of hydrogen fluoride or ammonium bifluoride employs a stable, neutralized ammonium bifluoride-containing accelerator solution for addition to an acidic wash solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.