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US 3,945,931 AGranted
Utilization of amido-acids for the production of aqueous fluids for the working of metals
AssigneeAquila S.p.A.
InventorsGiancarlo Bussi, Pierpaolo Baradel
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Abstract
An aqueous fluid for the working of metals comprising an aqueous solution of at least one salt of an amido acid of the formula: ##EQU1## in which R is a hydrocarbon group, substituted or not by chlorine, and having between 9 and 25 carbon atoms; n and n' are whole numbers or zero, identical or not, whose sum (n + n') is equal to 1 or 2.
Claims7
An aqueous fluid for the working of metals comprising an aqueous solution of at least one salt of an amido acid of the formula:
- ##EQU7## in which R is a hydrocarbon group substituted or not by chlorine, and having between 9 and 25 carbon atoms;
- n and n' are whole numbers of zero, identical or not, whose sum (n + n') is equal to 1 or 2.
A mixture of salts consisting of at least one of the salts of an amido acid of the general formula:
- ##EQU9## in which R' is hydrocarbon group substituted by chlorine and comprising nine to twenty-five carbon atoms,
- -n and n' are whole numbers or zero, identical or not, in which the sum (n + n') is equal to 1 or 2.
- -M is selected from the group consisting of alkali metals, the ammonium ion (NH.sub.4) and substituted ammonium radicals derived from amines,
- and at least one salt of at least one orthophosphoric ester selected from the group consisting of:
- ##EQU10## in which the groups Z and Z' are identical or not, and include between 10 and 20 carbon atoms and including in addition a chlorine atom.
2 more elements
Dependencies are inferred from the claim text.