US4383937A
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Aqueous functional fluid compositions
Assignee: DEUTSCHEBANK TRUST Co AMERICAS
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Filing: 1981-09-21
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Granted: 1983-05-17
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Expires: 2001-09-21
Abstract
Abstract Corrosion inhibiting aqueous functional fluid compositions are provided which comprise (a) water (b) a water soluble or dispersible, surface active, corrosion inhibiting alkali metal, ammonium or organic amine salt of a water insoluble C4 to C9 aliphatic monohydric secondary alcohol half ester of a hydrocarbon cyclic dicarboxylic acid or anhydride, said half ester having a molecular weight of from 240 to 297, (e.g. monoethanolamine salt of the 2-octanol half ester of phthalic acid) and optionally (c) a substance selected from the group consisting of an anionic surfactant, a nonionic surfactant, a cationic surfactant, an amphoteric surfactant and a lubricant or mixture thereof, the fluid having a pH in the range of 8 to 12. Such aqueous fluids are useful as metal working fluids.
Inventors
- 👤 Mark A. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:52
CPC Classifications
C; C10; C10M; C10M173/00; C10M105/00; C10M105/56; C10M105/68; C10M129/00; C10M129/02; C10M129/68; C10M129/76; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C10M2201/00; C10M2201/02; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2207/00; C10M2207/28; C10M2207/284; C10M2207/285; C10M2207/287; C10M2207/288; C10M2207/289; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/26; C10M2215/28; C10M2219/00; C10M2219/04; C10M2219/044; C10M2227/00; C10M2227/06; C10M2227/061; C10N; C10N2040/00; C10N2040/08; 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: 25
Claim 1
Independent Claim
136 words
A corrosion inhibiting aqueous functional fluid composition comprising (a) water, (b) a water soluble or dispersible, surface active, corrosion inhibiting alkali metal, ammonium or organic amine salt of a water insoluble C 4 to C 10 aliphatic monohydric secondary alcohol half ester of a hydrocarbon carbocyclic dicarboxylic acid or anhydride having 6 to 9 carbon atoms and a C 4 to C 6 carbocyclic ring and selected from the group consisting of cycloaliphatic, alkyl substituted cycloaliphatic, aromatic or alkyl substituted aromatic dicarboxylic acid or anhydride, said half ester having a molecular weight in the range of from 240 to 297 and optionally (c) a substance selected from the group consisting of a surfactant and a water soluble or dispersible lubricant or mixtures thereof, said fluid having a pH in the range of from 8 to 12.
Claim 2
Dependent Claim
136 words
A corrosion inhibiting aqueous functional fluid composition comprising (a) water, (b) a water soluble or dispersible, surface active, corrosion inhibiting alkali metal, ammonium or organic amine salt of a water insoluble C 4 to C 10 aliphatic monohydric secondary alcohol half ester of a hydrocarbon carbocyclic dicarboxylic acid or anhydride having 6 to 9 carbon atoms and a C 4 to C 6 carbocyclic ring and selected from the group consisting of cycloaliphatic, alkyl substituted cycloaliphatic, aromatic or alkyl substituted aromatic dicarboxylic acid or anhydride, said half ester having a molecular weight in the range of from 240 to 297 and optionally (c) a substance selected from the group consisting of a surfactant and a water soluble or dispersible lubricant or mixtures thereof, said fluid having a pH in the range of from 8 to 12.
Claim 3
Dependent Claim
16 words
A corrosion inhibiting aqueous functional fluid composition according to claim 1 comprising (a), (b) and (c).
Claim 4
Dependent Claim
16 words
A corrosion inhibiting aqueous functional fluid composition according to claim 2 wherein (c) is a surfactant.
Claim 5
Dependent Claim
20 words
A corrosion inhibiting aqueous functional fluid composition according to claim 2 wherein (c) is a water soluble or dispersible lubricant.
Claim 6
Dependent Claim
26 words
A corrosion inhibiting aqueous functional fluid composition according to claim 2 wherein (c) is a mixture of a surfactant and a water soluble or dispersible lubricant.
Claim 7
Dependent Claim
15 words
A corrosion inhibiting aqueous functional fluid composition according to claim 1 comprising (a) and (b).
Claim 8
Dependent Claim
161 words
A corrosion inhibiting aqueous functional fluid composition according to claims 3, 4, 5 or 6 wherein (b) is the water soluble or dispersible alkali metal, ammonium or organic amine salt of a water insoluble half ester having the formula ##STR52## where R and R 1 are the same or different and are selected from the group consisting of straight or branched chain alkyl group having 1 to 8 carbon atoms or straight or branched chain alkenyl or alkynyl group having 2 to 8 carbon atoms such that the sum of the carbon atom content of R and R 1 is from 3 to 9 and R 2 is a divalent hydrocarbon carbocyclic group having from 4 to 7 carbon atoms and a C 4 to C 6 carbocyclic ring selected from the group consisting of divalent cycloaliphatic, alkyl substituted cycloaliphatic, aromatic or alkyl substituted aromatic radicals, said half ester having a molecular weight in the range of from 240 to 297.
Claim 9
Dependent Claim
19 words
A corrosion inhibiting aqueous functional fluid composition according to claim 7 wherein R 2 is a divalent cycloaliphatic radical.
Claim 10
Dependent Claim
21 words
A corrosion inhibiting aqueous functional fluid composition according to claim 7 wherein R 2 is a divalent alkyl substituted cycloaliphatic radical.
Claim 11
Dependent Claim
19 words
A corrosion inhibiting aqueous functional fluid composition according to claim 7 wherein R 2 is a divalent aromatic radical.
Claim 12
Dependent Claim
28 words
A corrosion inhibiting aqueous functional fluid composition according to claim 8 wherein the salt is a mono, di or tri (C 2 to C 4 alkanol) amine salt.
Claim 13
Dependent Claim
28 words
A corrosion inhibiting aqueous functional fluid composition according to claim 9 wherein the salt is a mono, di or tri (C 2 to C 4 alkanol) amine salt.
Claim 14
Dependent Claim
28 words
A corrosion inhibiting aqueous functional fluid composition according to claim 10 wherein the salt is a mono, di or tri (C 2 to C 4 alkanol) amine salt.
Claim 15
Dependent Claim
25 words
A corrosion inhibiting aqueous functional fluid composition according to claim 11 wherein the water insoluble half ester is the 2-octanol half ester of 4-cyclohexene-1,2-dicarboxylic anhydride.
Claim 16
Independent Claim
150 words
A method of preparing a corrosion inhibiting aqueous functional fluid composition comprising the steps of (1) mixing together (a) water (b) a water soluble or dispersible, surface active, corrosion inhibiting alkali metal, ammonium or organic amine salt of a water insoluble C 4 to C 10 aliphatic monohydric secondary alcohol half ester of a hydrocarbon carbocyclic dicarboxylic acid or anhydride having 6 to 9 carbon atoms and a C 4 to C 6 carbocyclic ring and selected from the group of cycloaliphatic, alkyl substituted cycloaliphatic, aromatic or alkyl substituted aromatic dicarboxylic acid or anhydride, said half ester having a molecular weight in the range of from 240 to 297 and optionally (c) a substance selected from the group consisting of a surfactant and a water soluble or dispersible organic lubricant or mixtures thereof and (2) adjusting the pH of the fluid to within the range of from 8 to 12.
Claim 17
Independent Claim
150 words
A method of preparing a corrosion inhibiting aqueous functional fluid composition comprising the steps of (1) mixing together (a) water (b) a water soluble or dispersible, surface active, corrosion inhibiting alkali metal, ammonium or organic amine salt of a water insoluble C 4 to C 10 aliphatic monohydric secondary alcohol half ester of a hydrocarbon carbocyclic dicarboxylic acid or anhydride having 6 to 9 carbon atoms and a C 4 to C 6 carbocyclic ring and selected from the group of cycloaliphatic, alkyl substituted cycloaliphatic, aromatic or alkyl substituted aromatic dicarboxylic acid or anhydride, said half ester having a molecular weight in the range of from 240 to 297 and optionally (c) a substance selected from the group consisting of a surfactant and a water soluble or dispersible organic lubricant or mixtures thereof and (2) adjusting the pH of the fluid to within the range of from 8 to 12.
Claim 18
Dependent Claim
17 words
The method according to claim 15 wherein step 1 is the step of mixing (a) and (b).
Claim 19
Dependent Claim
18 words
The method according to claim 15 wherein step 1 is the step of mixing (a), (b) and (c).
Claim 20
Independent Claim
16 words
The method according to claims 16 or 17 wherein steps 1 and 2 are conducted simultaneously.
Claim 21
Independent Claim
137 words
The method according to claims 16 or 17 wherein the half ester has the following formula: ##STR53## where R and R 1 are the same or different and are selected from the group consisting of straight or branched chain alkyl group having 1 to 8 carbon atoms or straight or branched chain alkenyl or alkynyl group having 2 to 8 carbon atoms such that the sum of the carbon atom content of R and R 1 is from 3 to 9 and R 2 is a divalent hydrocarbon carbocyclic group having 4 to 7 carbon atoms and a C 4 to C 6 carbocyclic ring selected from the group consisting of divalent cycloaliphatic, alkyl substituted cycloaliphatic, aromatic or alkyl substituted aromatic radicals, said half ester having a molecular weight in the range of from 240 to 297.
Claim 22
Dependent Claim
22 words
The method according to claim 19 wherein R 2 is a divalent cycloaliphatic radical and the salt is an alkanol amine salt.
Claim 23
Dependent Claim
24 words
The method according to claim 19 wherein R 2 is a divalent alkyl substituted cycloaliphatic radical and the salt is an alkanol amine salt.
Claim 24
Dependent Claim
22 words
The method according to claim 19 wherein R 2 is a divalent aromatic radical and the salt is an alkanol amine salt.
Claim 25
Dependent Claim
26 words
The method of working metal comprising the step of working metal in the presence of a corrosion inhibiting aqueous functional fluid composition according to claim 7.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |