Patent US3514938A successfully refreshed from Google Patents.
Patent US4175049A successfully refreshed from Google Patents.
US4175049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Functional fluid methods using alkoxysilane ester cluster compounds
Assignee: Olin Corp
•
Filing: 1978-01-12
•
Granted: 1979-11-20
•
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 22:39
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.
References Cited (Backward Citations)
US2711418A
Cited
US2881199A
Cited
US2995592A
Cited
US2995591A
Cited
US3361714A
Cited
US3723491A
Cited
US3865859A
Cited
US3887601A
Cited
US3960913A
Cited
US3965136A
Cited
US3965135A
Cited
US4048084A
Cited
US4048083A
Cited
US3992429A
Cited
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 |