Method of inhibiting scale and controlling corrosion in cooling water systems
US5575920A · kind A · utility
42Cited by
20References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1995 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | Sep 18, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F14/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for simultaneously controlling the deposition of scale and the formation of corrosion in a cooling water system consisting of adding to the system a water soluble copolymer having the structure: ##STR1## wherein R.sub.1 is H or lower (C.sub.1 -C.sub.4) alkyl, F is H.sub.2 or O, M is a water soluble cation, R.sub.2 is (CH.sub.2 --CH.sub.2 --O).sub.n, ##STR2## or mixture of both, n is an integer of from 1 to about 40, R.sub.3 is H, lower (C.sub.1 -C.sub.4) alkyl or an acetate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.