USRE31324E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorine containing organosilicon compounds
Assignee: Gang Nail Systems Inc
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Filing: 1982-04-12
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Granted: 1983-07-26
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Expires: 2002-04-12
Abstract
Abstract Addition to organosilicon compounds having at least one alkyl group attached to a silicon atom, at least one hydrogen atom being attached to the carbon atom adjacent the silicon atom, of a fluorocompound, which may be a fluoroolefin.[., a perfluoroketone,.]. or a perfluoroether having a carbon-carbon double bond in α-position to the ether oxygen atom, give fluorine-containing organosilicon compounds. These adducts may be liquid or solid and are useful as (1) lubricants and sealants for automotive and aerospace industries (2) fire-resistant hydraulic fluids, and (3) siloxane elastomers having good oil and lubricant resistance.
Inventors
- 👤 David Apotheker, deceased
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:57
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0889; C07F7/21; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/385; C10; C10M; C10M3/00; C10M7/00; C10M2227/00; C10M2227/04; C10M2229/00; C10M2229/04; C10M2229/05; C10M2229/051; C10M2229/052; C10M2229/053; C10N; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
132 words
A fluorine-containing organosilicon compound made by the addition to an organosilicon compound having at least one alkyl group attached to a silicon atom, at least one hydrogen atom being bonded to the carbon atom adjacent the silicon atom, of a fluorocompound selected from the class consisting of the following: (A) fluoroolefins having one of the following formulas (1), (2), and (3): ##STR12## .[.(B) ketones having the following formula (4):.]. ##STR13## and (C) ethers having the following formula .[.(5).]. .Iadd.(4) .Iaddend. ##STR14## where Each R f independently is a C 1 -C 8 saturated perfluoroalkyl; R' f is Br or R f , R" f is R f or a radical obtained by removing one fluorine atom from a perfluoroalkyl ether; and m in formula (3) is an integer of 2 to 12.
Claim 2
Dependent Claim
132 words
A fluorine-containing organosilicon compound made by the addition to an organosilicon compound having at least one alkyl group attached to a silicon atom, at least one hydrogen atom being bonded to the carbon atom adjacent the silicon atom, of a fluorocompound selected from the class consisting of the following: (A) fluoroolefins having one of the following formulas (1), (2), and (3): ##STR12## .[.(B) ketones having the following formula (4):.]. ##STR13## and (C) ethers having the following formula .[.(5).]. .Iadd.(4) .Iaddend. ##STR14## where Each R f independently is a C 1 -C 8 saturated perfluoroalkyl; R' f is Br or R f , R" f is R f or a radical obtained by removing one fluorine atom from a perfluoroalkyl ether; and m in formula (3) is an integer of 2 to 12.
Claim 3
Dependent Claim
18 words
A compound of claim 1, which is an adduct of a fluorocompound with a linear or cyclic siloxane.
Claim 4
Dependent Claim
45 words
A compound of claim 2, wherein the siloxane has the following formula ##STR15## wherein each of R and R' is alkyl; if the siloxane is cyclic, n is 3-6; and if the siloxane is linear, n is 2-10,000 and is represented by the formula ##STR16##
Claim 5
Dependent Claim
29 words
A compound of claim 1 which is an adduct of an organosilicon compound with a fluorocompound selected from the group consisting of hexafluoropropene, perfluoromethyl vinyl ether, .[.hexafluoroacetone,.]. and bromotrifluoroethylene.
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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) | 1986-07-25 | 1987-01-24 | 1987-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-25 | 1991-01-24 | 1991-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-25 | 1995-01-24 | 1995-07-26 | $7700.00 | Window Closed / Lapsed |