US4175049A
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Functional fluid methods using alkoxysilane ester cluster compounds
Assignee: Olin Corp
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Filing: 1978-01-12
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Granted: 1979-11-20
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Expires: 1998-01-12
Abstract
Abstract Novel alkoxysilane ester cluster compounds are disclosed. These compounds have the formula: RSi[OSi(OR')3]2OR'' wherein R is hydrogen, an alkyl, alkenyl, aryl or aralkyl group, and each R' and the R'' groups is independently selected from alkyl, alkenyl, aryl and aralkyl with the proviso that at least a majority of the R' radicals are sterically hindered alkyl groups having at least 3 carbon atoms. The preparation of these novel alkoxysilane ester cluster compounds and their use as functional fluids are also disclosed.
Inventors
- 👤 Karl O. Knollmueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:25
CPC Classifications
C; C10; C10M; C10M105/00; C10M105/76; C07; C07F; C07F7/00; C07F7/02; C07F7/04; C07F7/08; C07F7/0834; C07F7/0838; C10M2203/00; C10M2203/06; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/023; C10M2207/024; C10M2207/10; C10M2207/18; C10M2207/20; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/106; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2219/00; C10M2219/10; C10M2219/104; C10M2219/108; C10M2227/00; C10M2227/04; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
102 words
In a method wherein a fluid is used as a medium for the transmission of a functional impulse selected from pressure or heat from a first location to a second location, the improvement characterized by using as the functional fluid a composition containing an effective amount of a compound having the formula: ##STR9## wherein R is hydrogen, an alkyl, alkenyl, aryl or aralkyl group, and R" and the R' groups are independently selected from alkyl, alkenyl, aryl and aralkyl with the proviso that at least a majority of the R' radicals are sterically hindered alkyl groups having at least 3 carbon atoms.
Claim 2
Dependent Claim
102 words
In a method wherein a fluid is used as a medium for the transmission of a functional impulse selected from pressure or heat from a first location to a second location, the improvement characterized by using as the functional fluid a composition containing an effective amount of a compound having the formula: ##STR9## wherein R is hydrogen, an alkyl, alkenyl, aryl or aralkyl group, and R" and the R' groups are independently selected from alkyl, alkenyl, aryl and aralkyl with the proviso that at least a majority of the R' radicals are sterically hindered alkyl groups having at least 3 carbon atoms.
Claim 3
Dependent Claim
92 words
The method of claim 1 wherein R is hydrogen, an alkyl or alkenyl having about 1 to about 18 carbon atoms or an aryl or aralkyl having about 6 to about 24 carbon atoms, and each R' and R" is independently selected from alkyl or alkenyl having about 1 to about 24 carbon atoms or aryl or aralkyl having about 6 to about 24 carbon atoms, subject to the proviso that at least a majority of the R' groups are sterically hindered alkyl groups having about 3 to about 24 carbon atoms.
Claim 4
Dependent Claim
93 words
The method of claim 2 wherein R is hydrogen, an alkyl or alkenyl having about 1 to about 8 carbon atoms or an aryl or aralkyl having about 6 to about 14 carbon atoms, and each R' and R" is independently selected from alkyl or alkenyl having about 1 to about 12 carbon atoms or an aryl or aralkyl having about 6 to about 14 carbon atoms, subject to the proviso that at least a majority of the R' groups are sterically hindered alkyl groups having about 4 to about 12 carbon atoms.
Claim 5
Dependent Claim
27 words
The method of claim 3 wherein R" and the R' groups are independently selected from sterically hindered alkyl groups having about 4 to about 12 carbon atoms.
Claim 6
Dependent Claim
38 words
The method of claim 4 wherein R is alkyl of about 1 to about 8 carbon atoms, and each R' and R" is independently selected from sterically hindered alkyl groups having about 4 to about 12 carbon atoms.
Claim 7
Dependent Claim
16 words
The method of claim 5 wherein R is methyl and R" and R' are sec butyl.
Claim 8
Dependent Claim
74 words
In a hydraulic functional fluid method comprising converting a first mechanical effort to pressure at a first location, transmitting said pressure from said first location to a second location through use of a hydraulic fluid, and converting said pressure at said second location to a second mechanical effort, the improvement characterized by using as said hydraulic fluid a composition comprising an effective amount of a compound having the formula set forth in claim 1.
Claim 9
Dependent Claim
30 words
The method of claim 7 wherein the improvement is characterized by using a hydraulic fluid comprising an effective amount of a compound having the formula set forth in claim 3.
Claim 10
Dependent Claim
30 words
The method of claim 7 wherein the improvement is characterized by using a hydraulic fluid comprising an effective amount of a compound having the formula set forth in claim 5.
Claim 11
Dependent Claim
66 words
In a heat transfer functional fluid method comprising passing heat from a first heat conductor to a heat transfer fluid at a first location, transmitting the heat from said first location to a second location through use of said heat transfer fluid, the improvement characterized by using a heat transfer fluid comprising an effective amount of a compound having the formula set forth in claim 1.
Claim 12
Dependent Claim
31 words
The method of claim 10 wherein the improvement is characterized by using a heat transfer fluid comprising an effective amount of a compound having the formula set forth in claim 3.
Claim 13
Dependent Claim
31 words
The method of claim 10 wherein the improvement is characterized by using a heat transfer fluid comprising an effective amount of a compound having the formula set forth in claim 5.
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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) | 1982-11-19 | 1983-05-21 | 1983-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-19 | 1987-05-21 | 1987-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-19 | 1991-05-21 | 1991-11-20 | $7700.00 | Window Closed / Lapsed |