Stock material or miscellaneous articles – Composite – Of metal
Patent
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.
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Koch Karlheinz
Kolaczinski Gerhard
Rupilius Wolfgang
Stein Werner
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Henkel KGaA
Robinson Ellis
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