Method of producing corrosion inhibitors

Details Method of producing corrosion inhibitors Method of producing corrosion inhibitors

1981-12-11

1984-07-10

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Corrosion inhibiting coating composition

106 1425, 106 1439, 106288B, C09D 508

Patent

active

044591551

ABSTRACT:
A method of producing a corrosion inhibitor formed of particles of an inorganic oxide having corrosion inhibiting anions chemically bound to the particles comprising contacting the inorganic oxide with an aqueous solution containing corrosion inhibiting anions at a temperature of from 50.degree. to 95.degree. C. and at a pH sufficiently low to initiate ion-exchange and maintaining the pH at this low level by the addition to the solution of further anions or a compound forming such anions in solution. Preferably the corrosion inhibiting anions are molybdate anions.
The particles may be incorporated into protective coatings in amounts up to 80% wt based on dry film weight giving coatings with up to 12% wt of anions.

REFERENCES:
patent: 3232887 (1966-02-01), Pessimisis
patent: 3874883 (1975-04-01), Robitaille et al.
patent: 3905916 (1975-09-01), Riley et al.
patent: 3969127 (1976-07-01), Robitaille et al.
patent: 4016108 (1977-04-01), Robson

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