Antifreeze composition containing a corrosion inhibitor combinat

Details Antifreeze composition containing a corrosion inhibitor combinat Antifreeze composition containing a corrosion inhibitor combinat

1979-10-17

1980-12-30

Pitlick, Harris A.

Compositions

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

Organic components

C09K 500

Patent

active

042422140

ABSTRACT:
The invention is a synergistic combination of inhibitors which effectively prevents corrosion in automotive cooling systems containing antifreeze solution based on water-soluble alcohols. The combination includes sodium tetraborate, sodium benzoate, sodium metaborate, sodium metasilicate and tolyltriazole or benzotriazole.

REFERENCES:
patent: 3228884 (1966-01-01), Daignault et al.
patent: 3282846 (1966-11-01), Scott
patent: 3362910 (1968-01-01), Ordelt et al.
patent: 3414519 (1968-12-01), Beynon
patent: 3769220 (1973-10-01), Willard
West Additives for Corrosion Control, Soap & Chemical Specialties, Sep. 1964, pp. 177, 178, 212 & 213, Oct. 1964, pp. 192, 193 & 226.

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