Antifreeze/coolant composition

Details Antifreeze/coolant composition Antifreeze/coolant composition

1998-03-10

2000-08-01

Skane, Christine

Compositions

Etching or brightening compositions

252 76, C09K 520, C09K 500

Patent

active

060962364

ABSTRACT:
An antifreeze/coolant composition is disclosed, which can effectively inhibit corrosion of metals, particularly cast aluminum and cast iron, and can also inhibit cavitation damage to metals in an engine cooling system. The antifreeze/coolant composition comprises a glycol as the chief ingredient, 0.1-0.5% by weight of at least one ingredient selected from among hexanoic acid heptanoic acid and their salts, and 0.1-0.5% by weight of at least one ingredient selected from among alkylbenzoic acids having C.sub.1 -C.sub.5 alkyl and their salts.

REFERENCES:
patent: 4647392 (1987-03-01), Darden et al.
patent: 4851145 (1989-07-01), Van Neste et al.
patent: 5489391 (1996-02-01), Nawa et al.
patent: 5811025 (1998-09-01), Kawai et al.

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