Corrodible iron-containing surfaces carrying corrosion-inhibitin

Details Corrodible iron-containing surfaces carrying corrosion-inhibitin Corrodible iron-containing surfaces carrying corrosion-inhibitin

1976-05-05

1978-02-14

Robinson, Ellis

Stock material or miscellaneous articles

Composite

Of metal

21 27R, 106 14, 252392, 260584R, 427337, 427388R, 428538, C23F 1100, C09D 508, B32B 1504

Patent

active

040740137

ABSTRACT:
Corrodible iron-containing metals (including steel) possess decreased tendency to corrode when contacted with aqueous media (including dilute strong mineral acids) when they carry a surface coating of mixtures of aminoalkanols of the formula: ##STR1## wherein R.sub.1 and R.sub.2 each represent a C.sub.1-21 alkyl; and wherein the sum of the carbon atoms in R.sub.1 and R.sub.2 is 6 to 22. The vicinal ##STR2## substituents are non-terminal and are preferably uniformly distributed along the chain. The aminoalkanols are useful both in free base and in salt form.

REFERENCES:
patent: 2587546 (1952-02-01), Matuszak
patent: 2856363 (1958-10-01), Brennan
patent: 2914475 (1959-11-01), Oxford
patent: 2918390 (1959-12-01), Brown
patent: 3033796 (1962-05-01), Findley
patent: 3723530 (1973-03-01), Goetze
patent: 3766184 (1973-10-01), Johansson
patent: 3872116 (1975-03-01), Gipson
patent: 3897349 (1975-07-01), Marin
patent: 3953512 (1976-04-01), Belzecki
patent: 3974323 (1976-08-01), Brouillette

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