Scale inhibition
US5160630A · kind A · utility
7Cited by
9References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 23, 1991 |
| Grant date | Nov 3, 1992 |
| Priority date | — |
| Expiry date | Sep 23, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F5/14
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method of inhibiting the precipitation of calcium carbonate scale from an aqueous system, comprising adding to the aqueous system, a compound having the formula I: ##STR1## in which M is hydrogen or an alkali metal ion, an ammonium ion or a quaternized amine radical; R.sub.1 is hydrogen or methyl; and n is an integer ranging from 1 to 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.