Limescale removal compositions
US5677271A · kind A · utility
4Cited by
15References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 1996 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | May 10, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/042
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Limescale removing compositions are disclosed which comprises a C1-C6 linear or branched alkyl sulfonic acid or mixtures thereof. Said alkyl sulfonic acids are particularly efficient in removing limescale and they are furthermore stable to bleach/oxidants. Therefore, compositions can be formulated which further comprise acid-stable oxidant compounds. Also, mixtures of alkyl sulfonic acids and sulfamic acid are particularly effective in removing limescale. The compositions of the invention are used to remove limescale from a variety of surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.