US4067932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivatives of phosphorus-containing aldehydes and ketones
Assignee: Stauffer Chemical Co
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Filing: 1976-06-02
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Granted: 1978-01-10
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Expires: 1996-06-02
Abstract
Abstract Phosphorous based flame retardants based on organophosphorus intermediates, characterized by high phosphorus content, which allow further reaction with conventional organophosphorus compounds are described. These flame retardants are particularly useful or polyurethanes.
Inventors
- 👤 Ronald L. Muntz
- 👤 Edward N. Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:48
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0014; C08J9/0038; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/093; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C07F9/4025; C07F9/547; C07F9/6564; C07F9/6571; C07F9/657163; C07F9/657181; C07F9/6574; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521; C08K5/53; C08K5/5317; C08K5/5333; C08J2375/00; C08J2375/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
214 words
A flame retardant compound having the structure: ##STR27##wherein n is 0 or 1; R' has a structure selected from the group consisting of ##STR28##R and R 2 are the same or different and are selected from the group consisting of C 1 -C 6 straight, branched and cyclic alkyl, aryl, aryl substituted C 1 -C 6 alkyl, C 1 -C 6 alkyl substituted aryl, and the hydroxylated derivatives thereof; R 1 is selected from the group consisting of straight and branched C 1 -C 6 alkylene and C 1 -C 6 alkenylene; R 3 is selected from the group consisting of hydrogen and C 1 -C 4 straight and branched alkyl R 4 is selected from the group consisting of hydroxyl, and --N(R 9 ) 2 where R 9 is selected from the group consisting of C 1 -C 4 alkyl and C 1 -C 4 hydroxy alkyl; R 5 is selected from the group consisting of hydrogen and C 1 -C 6 straight and branched alkyl; R 6 is selected from the group consisting of --C(CH 2 OH) 3 and --CH 2 CH[N(R 9 ) 2 ] 2 where R 9 is as defined above; and R 7 and R 8 are the same or different and are the difunctional analogs of R.
Claim 2
Dependent Claim
214 words
A flame retardant compound having the structure: ##STR27##wherein n is 0 or 1; R' has a structure selected from the group consisting of ##STR28##R and R 2 are the same or different and are selected from the group consisting of C 1 -C 6 straight, branched and cyclic alkyl, aryl, aryl substituted C 1 -C 6 alkyl, C 1 -C 6 alkyl substituted aryl, and the hydroxylated derivatives thereof; R 1 is selected from the group consisting of straight and branched C 1 -C 6 alkylene and C 1 -C 6 alkenylene; R 3 is selected from the group consisting of hydrogen and C 1 -C 4 straight and branched alkyl R 4 is selected from the group consisting of hydroxyl, and --N(R 9 ) 2 where R 9 is selected from the group consisting of C 1 -C 4 alkyl and C 1 -C 4 hydroxy alkyl; R 5 is selected from the group consisting of hydrogen and C 1 -C 6 straight and branched alkyl; R 6 is selected from the group consisting of --C(CH 2 OH) 3 and --CH 2 CH[N(R 9 ) 2 ] 2 where R 9 is as defined above; and R 7 and R 8 are the same or different and are the difunctional analogs of R.
Claim 3
Dependent Claim
208 words
A flame retardant compound having the structure: ##STR29##wherein n is 0 or 1; R' has a structure selected from the group consisting of ##STR30##R 2 is selected from the group consisting of C 1 -C 6 straight, branched and cyclic alkyl, aryl, aryl substituted C 1 -C 6 alkyl, C 1 -C 6 alkyl substituted aryl, and the hydroxylated derivatives thereof; R 1 is selected from the group consisting of straight and branched C 1 -C 6 alkylene and C 1 -C 6 alkenylene; R 3 is selected from the group consisting of hydrogen and C 1 -C 4 straight and branched alkyl; R 4 is selected from the group consisting of hydroxyl, and --N(R 9 ) 2 where R 9 is selected from the group consisting of C 1 -C 4 alkyl and C 1 -C 4 hydroxy alkyl; R 5 is selected from the group consisting of hydrogen and C 1 -C 6 straight and branched alkyl; R 6 is selected from the group consisting of --C(CH 2 OH) 3 and --CH 2 CH[N(R 9 ) 2 ] 2 where R 9 is as defined above; and R 7 and R 8 are the same or different and are the difunctional analogs of R 2 .
Claim 4
Dependent Claim
208 words
A flame retardant compound having the structure: ##STR29##wherein n is 0 or 1; R' has a structure selected from the group consisting of ##STR30##R 2 is selected from the group consisting of C 1 -C 6 straight, branched and cyclic alkyl, aryl, aryl substituted C 1 -C 6 alkyl, C 1 -C 6 alkyl substituted aryl, and the hydroxylated derivatives thereof; R 1 is selected from the group consisting of straight and branched C 1 -C 6 alkylene and C 1 -C 6 alkenylene; R 3 is selected from the group consisting of hydrogen and C 1 -C 4 straight and branched alkyl; R 4 is selected from the group consisting of hydroxyl, and --N(R 9 ) 2 where R 9 is selected from the group consisting of C 1 -C 4 alkyl and C 1 -C 4 hydroxy alkyl; R 5 is selected from the group consisting of hydrogen and C 1 -C 6 straight and branched alkyl; R 6 is selected from the group consisting of --C(CH 2 OH) 3 and --CH 2 CH[N(R 9 ) 2 ] 2 where R 9 is as defined above; and R 7 and R 8 are the same or different and are the difunctional analogs of R 2 .
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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) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |