US4034141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brominated phosphoramidates
Assignee: Occidental Chemical Corp
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Filing: 1976-05-03
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Granted: 1977-07-05
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Expires: 1996-05-03
Abstract
Abstract Brominated phosphoramidates of the structure <IMAGE> wherein R1 and R2 are independently selected from the group consisting of hydrogen, chloro, bromo, and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms; R3 is selected from the group consisting of hydrogen, alkyl of from 1 to 8 carbon atoms, hydroxy substituted alkyl of from 1 to 8 carbon atoms and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms; R4 is independently selected from the group consisting of R3 and a group of the structure <IMAGE> wherein R is selected from the group consisting of alkylene of from 2 to 8 carbon atoms; phenylene, biphenylene and dicyclohexylene; provided that at least one of R1 and R2 contains a bromine atom and at least one of R3 and R4 contains a replaceable hydrogen.
Inventors
- 👤 James J. Duffy
- 👤 Richard D. Carlson
- 👤 James C. Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:03
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6571; C07F9/657154; C08; C08K; C08K5/00; C08K5/49; C08K5/5399; D; D06; D06M; D06M13/00; D06M13/322; D06M13/44; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31786; Y10T428/31855; Y10T428/31935; Y10T428/8305
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
135 words
A method of imparting fire retardant properties to a combustible material, which comprises treating said material with a fire retardant amount of a compound of the structure: ##STR12## wherein R 1 and R 2 are independently selected from the group consisting of hydrogen, chloro, bromo and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms; R 3 is selected from the group consisting of hydrogen, alkyl of from 1 to 8 carbon atoms, hydroxy substituted alkyl of from 1 to 8 carbon atoms and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms, and R is selected from the group consisting of alkylene of from 2 to 8 carbon atoms, phenylene, biphenylene and dicyclohexylene; provided that at least one of R 1 and R 2 contains a bromine atom.
Claim 2
Independent Claim
135 words
A method of imparting fire retardant properties to a combustible material, which comprises treating said material with a fire retardant amount of a compound of the structure: ##STR12## wherein R 1 and R 2 are independently selected from the group consisting of hydrogen, chloro, bromo and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms; R 3 is selected from the group consisting of hydrogen, alkyl of from 1 to 8 carbon atoms, hydroxy substituted alkyl of from 1 to 8 carbon atoms and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms, and R is selected from the group consisting of alkylene of from 2 to 8 carbon atoms, phenylene, biphenylene and dicyclohexylene; provided that at least one of R 1 and R 2 contains a bromine atom.
Claim 3
Dependent Claim
23 words
The method of claim 1 wherein R 1 of the compound is a bromo substituted alkyl of from 1 to 8 carbon atoms.
Claim 4
Dependent Claim
23 words
The method of claim 2 wherein R 2 of the compound is a bromo substituted alkyl of from 1 to 8 carbon atoms.
Claim 5
Dependent Claim
23 words
The method of claim 1 wherein R 3 of the compound is a hydroxy substituted alkyl of from 1 to 8 carbon atoms.
Claim 6
Dependent Claim
21 words
The method of claim 1 wherein R of the compound is an alkylene group of from 2 to 8 carbon atoms.
Claim 7
Dependent Claim
12 words
The method of claim 1 wherein the compound has the structure: ##STR13##
Claim 8
Dependent Claim
12 words
The method of claim 1 wherein the compound has the structure: ##STR14##
Claim 9
Dependent Claim
12 words
The method of claim 1 wherein the compound has the structure: ##STR15##
Claim 10
Dependent Claim
8 words
The product of the method of claim 1.
Claim 11
Dependent Claim
8 words
The product of the method of claim 3.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-04 | 1981-01-03 | 1981-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-04 | 1985-01-03 | 1985-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-04 | 1989-01-03 | 1989-07-05 | $7700.00 | Window Closed / Lapsed |