US4191666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable aqueous emulsions of trichlorotrifluoroethane and method
Assignee: Produits Chimiques Ugine Kuhlmann
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Filing: 1976-01-09
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Granted: 1980-03-04
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Expires: 1996-01-09
Abstract
Abstract A stable emulsion comprising from about 70% to 98.5% by weight of trichlorotrifluoroethane, from about 1% to 20% by weight of water, and from about 0.5% to 10% by weight of a mixture of: at least one hydrophilic amine phosphate ester selected from the neutralization product of: (a) a phosphoric compound selected from a monophosphoric, diphosphoric, or a mixture of monophosphoric and diphosphoric compounds of: (i) straight or branched-chain aliphatic alcohols containing from 6 to 20 carbon atoms; or (ii) ether alcohols obtained by the ethoxylation, by 1 to 5 moles of ethylene oxide, of an alkylphenol or of a straight or branched-chain aliphatic alcohol containing from 6 to 20 carbon atoms; and (b) a hydrophilic, water-soluble amine selected from primary, secondary, or mixture of such amines; and at least one lipophilic phosphate ester selected from the neutralization product of (a) and a lipophilic amine; said mixture of amine phosphate esters containing, by weight thereof, at least 5% by weight of the hydrophilic amine phosphate ester.
Inventors
- 👤 Pierre Chabert
- 👤 Louis Foulletier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:34
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/34; C11D1/345; C09; C09K; C09K23/00; C09K23/14; C11D1/004; C11D1/006; C11D3/00; C11D3/43; C23; C23G; C23G5/00; C23G5/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
184 words
A stable emulsion consisting essentially of from about 70% to 98.5% by weight of trichlorotrifluorethane, from about 1% to 20% by weight of water, and from about 0.5% to 10% by weight of a mixture of: at least one hydrophilic amine phosphate ester selected from the group consisting of the neutralization product of: (a) a phosphoric compound selected from a group consisting of monophosphoric, diphosphoric, and a mixture of monophosphoric and diphosphoric compounds of: (i) straight or branched-chain aliphatic alcohols contained from 6 to 20 carbon atoms; or (ii) ether alcohols obtained by the ethoxylation, by 1 to 5 moles of ethylene oxide, of an alkylphenol or of a straight or branched-chain aliphatic alcohol containing from 6 to 20 carbon atoms; and (b) a hydrophilic, water-soluble amine selected from the group consisting of primary, secondary, and a mixture of such amines; and at least one lipophilic phosphate ester selected from the group consisting of the neutralization product of (a) and a lipophilic amine; said mixture of amine phosphate esters containing, by weight thereof, at least 5% by weight of the hydrophilic amine phosphate ester.
Claim 2
Dependent Claim
184 words
A stable emulsion consisting essentially of from about 70% to 98.5% by weight of trichlorotrifluorethane, from about 1% to 20% by weight of water, and from about 0.5% to 10% by weight of a mixture of: at least one hydrophilic amine phosphate ester selected from the group consisting of the neutralization product of: (a) a phosphoric compound selected from a group consisting of monophosphoric, diphosphoric, and a mixture of monophosphoric and diphosphoric compounds of: (i) straight or branched-chain aliphatic alcohols contained from 6 to 20 carbon atoms; or (ii) ether alcohols obtained by the ethoxylation, by 1 to 5 moles of ethylene oxide, of an alkylphenol or of a straight or branched-chain aliphatic alcohol containing from 6 to 20 carbon atoms; and (b) a hydrophilic, water-soluble amine selected from the group consisting of primary, secondary, and a mixture of such amines; and at least one lipophilic phosphate ester selected from the group consisting of the neutralization product of (a) and a lipophilic amine; said mixture of amine phosphate esters containing, by weight thereof, at least 5% by weight of the hydrophilic amine phosphate ester.
Claim 3
Dependent Claim
30 words
The emulsion of claim 1 wherein the neutralization of the phosphoric compound is carried out with an amount of amines of between 95% to 102% of the amount stoichiometrically required.
Claim 4
Dependent Claim
32 words
The emulsion of claim 1 wherein the hydrophilic, water-soluble amine is a secondary amine having the formula RNHR' in which R and R' are aliphatic radicals containing less than 4 carbon atoms.
Claim 5
Dependent Claim
35 words
The emulsion of claim 1 wherein the hydrophilic, water-soluble amine is a primary amine having the formula R 1 NH 2 in which R 1 is an aliphatic radical containing less than 4 carbon atoms.
Claim 6
Dependent Claim
67 words
The emulsion of claim 1 wherein the lipophilic amine is selected from the group consisting of a straight or branched-chain aliphatic amine having 6 to 20 carbon atoms; fatty amines containing 8 to 20 carbon atoms; cyclic amines; diamines of the formula R 2 --NHC 3 H 6 NH 2 in which R 2 is C 8 to C 20 alkyl radical; and mixtures of such amines.
Claim 7
Dependent Claim
57 words
The emulsion of claim 1 wherein the hydrophilic amine phosphate ester is selected from the group consisting of diisopropylamine octylphosphate, diisopropylamine tridecylphosphate, diethanolamine tridecylphosphate, diethylamine tridecylphosphate, diglycolamine tridecylphosphate, and mixtures thereof, and the lipophilic amines phosphate ester is selected from the group consisting of dodecylamine octylphosphate, oleylaminopropaneamine tridecylphosphate, N-methylcyclohexylamine tridecylphosphate, dodecylamine tridecylphosphate, diethylenetriamine octylphosphate, and mixtures thereof.
Claim 8
Dependent Claim
16 words
The method of cleaning an object comprising cleaning the object with the emulsion of claim 1.
Claim 9
Dependent Claim
17 words
The method of cleaning a metallic object comprising cleaning the object with the emulsion of claim 6.
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) | 1983-03-04 | 1983-09-03 | 1984-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-04 | 1987-09-03 | 1988-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-04 | 1991-09-03 | 1992-03-04 | $7700.00 | Window Closed / Lapsed |