| abstract |
The present invention provides an antifreeze/coolant additive and antifreeze/coolant compositions comprising polymeric polycarboxylates which prevents hard water precipitants and scale formation, reduce the corrosion rate of heat-rejecting aluminum, resist cavitation erosion-corrosion of aluminum and aluminum alloys, 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. |