Antifreeze compositions

Details Antifreeze compositions Antifreeze compositions

1983-10-31

1984-06-19

Kittle, John E.

Compositions

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

Organic components

252 74, 252 77, 252389A, C09K 500, F28F 2302

Patent

active

044552483

ABSTRACT:
A single-phase glycol-based antifreeze composition having superior performance in multi-metal corrosion protection contains certain silicate, phosphate, borate, nitrate, azole, and alkali compounds in specified proportions. Such compositions are of particular advantage in inhibiting the corrosion of aluminum surfaces at elevated antifreeze service temperatures.

REFERENCES:
patent: 2524484 (1950-10-01), Smith
patent: 2693451 (1954-11-01), Heisig
patent: 3445395 (1969-05-01), Boehmer
patent: 4149985 (1979-04-01), Wilson
patent: 4242214 (1980-12-01), Lambert, Jr.
patent: 4382870 (1983-05-01), Abel et al.

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