Glycol-based polycarboxylate-containing antifreeze coolant formulations
US5330670A · kind A · utility
9Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1991 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | Jul 23, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F11/173
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides an antifreeze/coolant composition with polymeric polycarboxylates which prevents hard water precipitants and scale formation, is soluble in alcohol and alcohol/water mixtures, is compatible with other commonly used antifreeze/coolant components, does not corrode or damage automotive cooling systems and is effective at relatively low concentrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.