US4031121A
Expired / Lapsed
US
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Organobromosilicone fluids
Assignee: Dow Silicones Corp
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Filing: 1976-09-22
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Granted: 1977-06-21
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Expires: 1996-09-22
Abstract
Abstract Organobromosilicone fluids having the general formula (BrCH.sub.2).sub.3 CCH.sub.2 O(R.sub.2 SiO).sub.x CH.sub.2 C(CH.sub.2 Br) 3 wherein each R is selected from the group consisting of hydrocarbon radicals containing from 1 to 18 carbon atoms, fluorinated hydrocarbon radicals containing from 1 to 18 carbon atoms, chlorinated hydrocarbon radicals containing from 1 to 18 carbon atoms and cyanohydrocarbon radicals containing from 1 to 18 carbon atoms, and x has a value of from 1 to 20 are disclosed. These fluids are useful, for example, for improving the fire resistance of cellulosic substrates.
Inventors
- 👤 Paul L. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:46
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/045; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
74 words
A silicone fluid having the general formula (BrCH.sub.2).sub. 3 CCH.sub.2 O(R.sub.2 SiO).sub.x CH.sub.2 C(CH.sub.2 Br).sub.3 wherein each R is selected from the group consisting of hydrocarbon radicals containing from 1 to 18 carbon atoms, fluorinated hydrocarbon radicals containing from 1 to 18 carbon atoms, chlorinated hydrocarbon radicals containing from 1 to 18 carbon atoms and cyanohydrocarbon radicals containing from 1 to 18 carbon atoms, and x has a value of from 1 to 20.
Claim 2
Dependent Claim
74 words
A silicone fluid having the general formula (BrCH.sub.2).sub. 3 CCH.sub.2 O(R.sub.2 SiO).sub.x CH.sub.2 C(CH.sub.2 Br).sub.3 wherein each R is selected from the group consisting of hydrocarbon radicals containing from 1 to 18 carbon atoms, fluorinated hydrocarbon radicals containing from 1 to 18 carbon atoms, chlorinated hydrocarbon radicals containing from 1 to 18 carbon atoms and cyanohydrocarbon radicals containing from 1 to 18 carbon atoms, and x has a value of from 1 to 20.
Claim 3
Dependent Claim
18 words
A silicone fluid as defined in claim 1 wherein x has a value of from 1 to 10.
Claim 4
Dependent Claim
14 words
A silicone fluid as defined in claim 2 wherein R is a hydrocarbon radical.
Claim 5
Dependent Claim
21 words
A silicone fluid as defined in claim 3 wherein R is selected from the group consisting of methyl and phenyl radicals.
Claim 6
Dependent Claim
20 words
A silicone fluid as defined in claim 4 wherein some R's are methyl radicals and some R's are phenyl radicals.
Claim 7
Dependent Claim
15 words
A silicone fluid as defined in claim 4 wherein all the R's are methyl radicals.
Claim 8
Dependent Claim
22 words
A silicone fluid as defined in claim 6 wherein the fluid has the general formula (BrCH.sub.2).sub.3 CCH.sub.2 O[(CH.sub.3).sub.2 SiO].sub.3 CH.sub.2 C(CH.sub.2 Br).sub.3.
Claim 9
Dependent Claim
23 words
A silicone fluid as defined in claim 6 wherein the fluid has the general formula (BrCH.sub.2).sub.3 CCH.sub.2 O[(CH.sub.3).sub.2 SiO] .sub.15 CH.sub.2 C(CH.sub.2 Br).sub.3.
References Cited (Backward Citations)
US3299173A
Cited
US3334123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-20 | 1980-12-20 | 1981-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-20 | 1984-12-20 | 1985-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-20 | 1988-12-20 | 1989-06-21 | $7700.00 | Window Closed / Lapsed |