Aqueous corrosion inhibitor formulations

Details Aqueous corrosion inhibitor formulations Aqueous corrosion inhibitor formulations

1995-06-07

1997-12-30

Lieberman, Paul

Compositions

Heat-exchange, low-freezing or pour point, or high boiling...

Organic components

252 79, 252396, C09K 500

Patent

active

057026319

ABSTRACT:
The present invention provides aqueous concentrated corrosion inhibition formulations suitable for addition to depleted antifreeze/coolant compositions or corrosive water that use a mixture of polymeric polycarboxylates, azoles, nitrate salts, phosphates, stabilized silicates and transition metal compounds which reduces the corrosion rate and is effective at relatively low concentrations. The formulations are particularly suitable for automotive applications.

REFERENCES:
patent: 4961878 (1990-10-01), Mullins
patent: 5290458 (1994-03-01), Turcotte et al.
patent: 5290467 (1994-03-01), Turcotte et al.
patent: 5290469 (1994-03-01), Turcotte et al.

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