Coolant additive with corrosion inhibitive and scale preventativ

Details Coolant additive with corrosion inhibitive and scale preventativ Coolant additive with corrosion inhibitive and scale preventativ

1986-09-12

1987-12-08

Wax, Robert

Compositions

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

Organic components

252 76, 252 77, 252180, 252181, 252395, 252396, 524549, 524577, 524811, 524832, 526272, C09K 500

Patent

active

047117354

ABSTRACT:
Disclosed herein is an improved coolant additive having corrosion inhibitive and scale preventative properties. In particular, the inventive additive in its various embodiments is specifically designed to avoid the use of silicates which, as is well known, form deposits which coat the surfaces and passageways of heavy duty diesel and other cooling systems, resulting in shortened life and reduced efficiency thereof. The inventive additive includes sodium hydroxide and/or alkal metal carbonate, ricinoleic acid, Reomet 41, Thiotax, various forms of SMA copolymers, sodium benzoate, sodium nitrate, chelant(s), antifoam agents, dye/pH indicator and soft water (composition solvent), mixed together in predetermined proportions with the various embodiments of the inventive additive including other constituent substances.

REFERENCES:
patent: 2386183 (1945-10-01), Balcar
patent: 2723956 (1955-11-01), Johnson
patent: 2937145 (1960-05-01), Cutlip et al.
patent: 2972581 (1961-02-01), Johnson et al.
patent: 3959166 (1976-05-01), Oberhofer et al.
patent: 4105592 (1978-08-01), Collins
patent: 4382008 (1983-05-01), Boreland et al.
patent: 4446045 (1984-05-01), Snyder et al.
patent: 4495336 (1985-01-01), Hausler et al.
patent: 4587028 (1986-05-01), Darden

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