US3945931A
Expired / Lapsed
US
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Utilization of amido-acids for the production of aqueous fluids for the working of metals
Assignee: Aquila SpA
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Filing: 1974-10-18
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Granted: 1976-03-23
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Expires: 1994-10-18
Abstract
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.
Inventors
- 👤 Giancarlo Bussi
- 👤 Pierpaolo Baradel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:18
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/083; C10M2201/084; C10M2201/085; C10M2201/087; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/08; C10M2215/082; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/28; C10M2215/30; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/066; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/043; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2040/00; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
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.
Claim 2
Dependent Claim
67 words
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.
Claim 3
Dependent Claim
53 words
An aqueous fluid as claimed in claim 1 further comprising in said solution, at least one salt of an ester selected from the group consisting of: ##EQU8## 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.
Claim 4
Dependent Claim
24 words
An aqueous fluid as claimed in claim 1 wherein the concentration of the salt in the aqueous solution is between about 10 and 70%.
Claim 5
Dependent Claim
24 words
An aqueous fluid as claimed in claim 1 wherein the concentration of the salt in the aqueous solution is between about 1 and 10%.
Claim 6
Dependent Claim
42 words
An aqueous fluid as claimed in claim 1 further comprising an additive selected from the group consisting of an anti-foam agent, a bactericide, an anti-corrosive agent, a colorant, an odor additive, and an agent modifying the physical characteristics of the aqueous solution.
Claim 7
Dependent Claim
30 words
An aqueous fluid as claimed in claim 1 wherein said salt is selected from the group consisting of an alkaline salt, an amine salt, an ammonium salt and mixtures thereof.
Claim 8
Dependent Claim
128 words
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 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.
Claim 9
Dependent Claim
128 words
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 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.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |