Filled polymer composition for automatic addition of a corrosion inhibitor to a coolant system
US4333850A · kind A · utility
6Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1979 |
| Grant date | Jun 8, 1982 |
| Priority date | — |
| Expiry date | Jun 15, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F11/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A filled insoluble polymer containing one or more corrosion inhibitors and a slightly water soluble polymer is utilized to automatically and continuously add a corrosion inhibitor to a coolant solution passing through a heat exchanger. The corrosion inhibitor is gradually leached from the filled polymer supplying inhibitor to the coolant to protect the metallic parts of the coolant system that are subject to corrosive conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.