Deposit control method
US4534866A · kind A · utility
17Cited by
7References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 17, 1983 |
| Grant date | Aug 13, 1985 |
| Priority date | — |
| Expiry date | Feb 17, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F14/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A water system deposit control method and composition of high calcium tolerance are herein disclosed. The composition comprises a reaction product formed from acrylic acid, hydroxylated lower alkyl acrylate and hypophosphorous acid. In accordance with the method herein, an effective amount, from about 0.1-500 ppm of the composition is added to the water system, e.g., cooling water system, so as to inhibit the build-up or agglomeration of undesirable deposits along the metal surfaces on contact with the water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.