Non-silicate antifreeze formulations

Details Non-silicate antifreeze formulations Non-silicate antifreeze formulations

1984-10-15

1986-05-06

Lieberman, Paul

Compositions

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

Organic components

252 74, 252 75, 252 79, C09K 500

Patent

active

045870284

ABSTRACT:
Non-silicate, non-gelling corrosion inhibited antifreeze compositions containing a water-soluble liquid alcohol freezing point depressant and an inhibitor combination comprising an alkali metal salt of benzoic acid, an alkali metal salt of a dicarboxylic acid and an alkali metal nitrate are described. These formulations work just as well or better than silicate-based formulations in all regards and have the advantage of not having to contain expensive organo silane gellation inhibitors as do silicate-containing antifreezes. The dicarboxylic acid used preferably has eight to twelve carbon atoms.

REFERENCES:
patent: 4242214 (1980-12-01), Lambert, Jr.
patent: 4338209 (1982-07-01), Manabe et al.
patent: 4382008 (1983-05-01), Boreland et al.

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