US4152481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enhancing flame retardancy with organobromosilicone fluids
Assignee: Dow Silicones Corp
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Filing: 1976-09-22
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Granted: 1979-05-01
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Expires: 1996-09-22
Abstract
Abstract A method of improving the flame retardant characteristics of substrates by applying thereto an organobromosilicone fluid of the general formula (BrCH 2 ) 3 CCH 2 O(R 2 SiO) x CH 2 C(CH 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 from 1 to 10, is disclosed.
Inventors
- 👤 Terence J. Swihart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:43
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C08; C08G; C08G77/00; C08G77/04; C08G77/045; C09; C09K; C09K21/00; C09K21/06; C09K21/08; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
105 words
A method for enchancing the flame-retardant characteristics of a substrate which comprises applying to said substrate about 0.1 to 5.0 percent by weight of an organobromosilicone fluid having the general formula (BrCH 2 ) 3 CCH 2 O(R 2 SiO) x CH 2 C(CH 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 from 1 to 10.
Claim 2
Independent Claim
105 words
A method for enchancing the flame-retardant characteristics of a substrate which comprises applying to said substrate about 0.1 to 5.0 percent by weight of an organobromosilicone fluid having the general formula (BrCH 2 ) 3 CCH 2 O(R 2 SiO) x CH 2 C(CH 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 from 1 to 10.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein R is a hydrocarbon radical.
Claim 4
Dependent Claim
18 words
The method of claim 2 wherein R is selected from the group consisting of methyl and phenyl radicals.
Claim 5
Dependent Claim
17 words
The method of claim 3 wherein some R's are methyl radicals and some R's are phenyl radicals.
Claim 6
Dependent Claim
12 words
The method of claim 3 wherein all the R's are methyl radicals.
Claim 7
Dependent Claim
32 words
The method of claim 5 wherein the organobromosilicone fluid has the general formula (BrCH 2 ) 3 CCH 2 O[(CH 3 ) 2 SiO] 3 CH 2 C(CH 2 Br) 3 .
Claim 8
Dependent Claim
12 words
The method of claim 1 wherein the substrate is a cellulosic substrate.
Claim 9
Dependent Claim
12 words
The method of claim 3 wherein the substrate is a cellulosic substrate.
Claim 10
Dependent Claim
11 words
The method of claim 1 wherein the substrate is a textile.
Claim 11
Dependent Claim
11 words
The method of claim 3 wherein the substrate is a textile.
References Cited (Backward Citations)
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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) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |