Antifreeze containing carboxysiloxane metal salts and hydroxyben

Details Antifreeze containing carboxysiloxane metal salts and hydroxyben Antifreeze containing carboxysiloxane metal salts and hydroxyben

1979-01-02

1980-06-24

Weinblatt, Mayer

Compositions

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

Organic components

252 73, 252 75, 252 77, 252 781, 252 783, 252389R, 422 7, 422 14, 422 17, C09K 5000

Patent

active

042094151

ABSTRACT:
This invention relates to single-phase antifreeze and coolant concentrates comprising an alcohol, a metal salt of a carboxysiloxane and an organic basic PH buffer and corrosion inhibitor comprising a hydroxybenzoic acid or mixtures thereof. The concentrates are preferably used as coolants either undiluted or upon dilution with about 25 to about 90 percent by weight of water based upon the total weight of the concentrate. The alcohol is preferably ethylene glycol. The coolant compositions are effective in providing protection against corrosion of all metals and alloys used in industrial heat exchangers and are especially effective in inhibiting the corrosion of aluminum internal combustion engine and radiator components.

REFERENCES:
patent: 2094564 (1937-09-01), Schenck et al.
patent: 3121692 (1964-02-01), Moorehouse et al.
patent: 3265623 (1966-08-01), Pines et al.

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