US3862048A
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Functional fluid compositions
Assignee: McDonnell Douglas Corp
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Filing: 1972-05-01
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Granted: 1975-01-21
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Expires: 1992-05-01
Abstract
Abstract Production of functional fluids, including aircraft hydraulic fluids and aircraft engine lubricants of improved fire resistance, comprising a functional fluid base stock, such as a phosphate ester, e.g., tri-n-butyl phosphate, di-n-butyl phenyl phosphate, or mixtures thereof, and/or a dicarboxylic acid ester, e.g., a diester of adipic acid such as diisodecyl adipate, or mixtures of such phosphate ester or esters, and dicarboxylic acid ester, and a small amount of an organic iodo compound such as iodobiphenyl or iodonaphthalene.
Inventors
- 👤 Martin B Sheratte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:08
CPC Classifications
C; C10; C10M; C10M3/00; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/04; C10M2207/042; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/024; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10N; C10N2040/00; C10N2040/06
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
17 words
A functional fluid composition as defined in claim 1, wherein said iodo compound is an aryl iodide.
Claim 2
Dependent Claim
28 words
A functional fluid composition as defined in claim 1, wherein said phosphate ester is selected from the group consisting of dialkyl aryl, triaryl, trialkyl, and alkyl diaryl phosphate.
Claim 3
Dependent Claim
38 words
A functinal fluid composition as defined in claim 1, said dicarboxylic acid ester being selected from the group consisting of adipic and sebacic acid alkyl diesters, having alkyl groups containing from about 4 to about 12 carbon atoms.
Claim 4
Dependent Claim
78 words
A functional fluid composition as defined in claim 1, said base stock consisting essentially of a mixture of about 35 to about 85% of a phosphate ester selected from the group consisting of dialkyl aryl, triaryl, trialkyl, and alkyl diaryl phosphate, and about 15 to about 65% of a dicarboxylic acid ester selected from the group consisting of adipic and sebacic acid alkyl diesters, having alkyl groups containing from about 4 to about 12 carbon atoms, by weight.
Claim 5
Dependent Claim
48 words
A functional fluid composition as defined in claim 5, wherein said iodo compound is selected from the group consisting of phenyl, biphenyl and naphthyl iodides and wherein said iodo compound is present in an amount ranging from about 0.1 to about 5% , by weight of said composition.
Claim 6
Dependent Claim
38 words
A functional fluid composition as defined in claim 6, wherein said phosphate ester is selected from the group cnsisting of tributyl phosphate, dibutyl phenyl phosphate, tricresyl phosphate, and mixtures thereof, and said dicarboxylic acid ester is diisodecyl adipate.
Claim 7
Dependent Claim
49 words
A functional fluid composition as defined in claim 5, wherein said iodo compound is selected from the group consisting of monoiodo biphenyl, monoiodo xylene and monoiodo naphthalene, and wherein said iodo compound is present in an amount ranging from about 0.5 to about 2.5%, by weight of said composition.
Claim 8
Dependent Claim
41 words
A functional fluid composition as defined in claim 8, said base stock consisting essentially of a mixture of tributyl phosphate, dibutyl phenyl phosphate and diisodecyl adipate, and wherein said iodo compound is selected from the group consisting of 4-iodobiphenyl and 1-iodonaphthalene.
Claim 9
Dependent Claim
30 words
A functional fluid composition as defined in claim 1, wherein said iodo compound is present in an amount ranging from about 0.1 to about 5%, by weight of said composition.
Claim 10
Dependent Claim
27 words
A functional fluid composition as defined in claim 2, wherein said iodo compound is selected from the group consisting of monoiodo biphenyl, monoiodo xylene and monoiodo naphthalene.
Claim 11
Dependent Claim
61 words
A functional fluid composition as defined in claim 10, said dicarboxylic acid ester being a mixture of a diester selected from the group consisting of adipic and sebacic acid alkyl diesters, having alkyl groups containing from about 4 to about 12 carbon atoms, and a phthalic acid alkyl diester containing alkyl groups of from about 4 to about 12 carbon atoms.
Claim 12
Dependent Claim
78 words
A functional fluid composition as defined in claim 10, said base stock consisting essentially of a mixture of about 50 to about 80% of a phosphate ester selected from the group consisting of dialkyl aryl, triaryl, trialkyl, and alkyl diaryl phosphate, and about 20 to about 50% of a dicarboxylic acid ester selected from the group consisting of adipic and sebacic acid alkyl diesters, having alkyl groups containing from about 4 to about 12 carbon atoms, by weight.
Claim 13
Dependent Claim
30 words
A functional fluid composition as defined in claim 10, wherein said iodo compound is present in an amount ranging from about 0.5 to about 2.5%, by weight of said composition.
Claim 14
Dependent Claim
57 words
A functional fluid composition as defined in claim 14, wherein said phosphate ester is selected from the group consisting of dialkyl aryl, triaryl, trialkyl, and alkyl diaryl phosphate, said dicarboxylic acid ester being selected from the group consisting of adipic and sebacic acid alkyl diesters, having alkyl groups containing from about 4 to about 12 carbon atoms.
Claim 15
Dependent Claim
25 words
A functional fluid composition as defined in claim 10, wherein said iodo compound is selected from the group consisting of phenyl, biphenyl and naphthyl iodides.
Claim 16
Dependent Claim
16 words
A functional fluid composition as defined in claim 16, wherein said iodo compound is a monoiodide.
Claim 17
Dependent Claim
28 words
A functional fluid composition as defined in claim 10, wherein said phosphate ester is selected from the group consisting of dialkyl aryl, triaryl, trialkyl, and alkyl diaryl phosphate.
Claim 18
Dependent Claim
25 words
A functional fluid composition as defined in claim 18, wherein said iodo compound is selected from the group consisting of phenyl, biphenyl and naphthyl iodides.
Claim 19
Dependent Claim
27 words
A functional fluid composition as defined in claim 18, wherein said iodo compound is selected from the grup consisting of monoiodo biphenyl, monoiodo xylene and monoiodo naphthalene.
Claim 20
Dependent Claim
32 words
A functional fluid composition consisting essentially of a base stock, said base stock consisting essentially of a member selected from the grup consisting of (a) a phosphate ester having the general formula:
Claim 21
Dependent Claim
17 words
A functional fluid composition as defined in claim 21, wherein said iodo compound is an aryl iodide.
Claim 22
Dependent Claim
30 words
A functional fluid composition as defined in claim 21, wherein said iodo compound is present in an amount ranging from about 0.1 to about 5%, by weight of said composition.
Claim 23
Dependent Claim
30 words
A functional fluid composition as defined in claim 23, wherein said iodo compound is present in an amount ranging from about 0.5 to about 2.5%, by weight of said composition.
Claim 24
Dependent Claim
27 words
A functional fluid composition as defined in claim 23, wherein said iodo compund is selected from the group consisting of monoido biphenyl, monoiodo xylene and monoiodo naphthalene.
Claim 25
Dependent Claim
25 words
A functional fluid composition as defined in claim 23, wherein said iodo compound is selected from the group consisting of phenyl, biphenyl and naphthyl iodides.
Claim 26
Dependent Claim
16 words
A functional fluid composition as defined in claim 26, wherein said iodo compound is a monoiodide.
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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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |