Treatment for water systems to inhibit corrosion and scale formation
US4869827A · kind A · utility
10Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1988 |
| Grant date | Sep 26, 1989 |
| Priority date | — |
| Expiry date | May 18, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2075/027
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to an improved composition and method which inhibit the corrosion of and the formation of scale on metals present in an aqueous system. The composition comprises a water soluble copolymer having moieties derived from acrylic acid and from lower alkyl hydroxy acrylates, and a combination of a manganese compound and an aminoalkylenephosphonic acid derivative or its salts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.