Corrosion inhibiting compositions and the process for using same

Details Corrosion inhibiting compositions and the process for using same Corrosion inhibiting compositions and the process for using same

1978-12-08

1981-01-20

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Corrosion inhibiting coating composition

106 1413, 106 1414, 106 1416, 252181, 252389A, 422 12, C23F 1108

Patent

active

042460301

ABSTRACT:
This invention is directed to corrosion inhibiting compositions and to a process for inhibiting corrosion and the deposition of mineral scale on metal in aqueous systems. The invention comprises adding to a water system effective amounts of an inhibiting composition comprising a water-soluble carboxylic acid and/or the salt thereof containing at least one hydroxyl group per molecule, an amino alkylene phosphonic acid or its derivative, a dispersing amount of a water-soluble polymeric dispersing agent and other inhibitors such as the molybdates, azoles and various inorganic metal compounds.

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patent: 3214454 (1965-10-01), Blaser et al.
patent: 3336221 (1967-08-01), Ralston
patent: 3639645 (1972-02-01), Miller et al.
patent: 3699048 (1972-10-01), Krueger et al.
patent: 3723347 (1973-03-01), Mitchell
patent: 3784469 (1974-01-01), Krueger et al.
patent: 3803047 (1974-04-01), Hwa
patent: 3806459 (1974-04-01), Petrey
patent: 3891568 (1975-06-01), Nishio et al.
patent: 3960576 (1976-06-01), Carter et al.
patent: 3992318 (1976-11-01), Gaupp et al.
patent: 4138353 (1979-02-01), Lipinski

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