Compositions – Heat-exchange – low-freezing or pour point – or high boiling... – Organic components
Patent
1996-03-13
1997-07-01
Green, Anthony
Compositions
Heat-exchange, low-freezing or pour point, or high boiling...
Organic components
106 1417, 106 1442, 106 1444, 252 74, 252390, C09K 500, C23F 1100
Patent
active
056434936
ABSTRACT:
The invention described herein is a corrosion inhibitor concentrate, and a method for preparation thereof, which may be formulated free of nitrites, nitrates, amines, and phosphates. The inhibitor concentrate is a "single part" synergistic combination of inhibitors, stabilizers, and antifoam agents, useful for reinhibition of recycled antifreeze/coolant. The inhibitor concentrate is efficacious for corrosion inhibition in coolants across a broad range of glycol quality. The inhibitor concentrate comprises specific amounts of water, triazole, alkali metal hydroxide, borate, alkali metal silicate, silicate stabilizer, and anti-foaming agent.
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Connor Kevin C.
Hillier Eric H.
Green Anthony
The Dow Chemical Company
Treangen John B.
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