Use of alkane sulphonic acid for rust removal
US8574370B2 · kind B2 · utility
1Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2009 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Nov 27, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23G1/088
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to the use of at least one alkane sulphonic acid, with formula R—SO3H, where R represents a saturated, linear or branched hydrocarbon chain, comprising 1 to 4 atoms of carbon for removing rust from all types of surface, in particular from metal surfaces, specifically iron, steel and others. The invention also relates to a method for cleaning rust from all types of surfaces using at least one alkane sulphonic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.