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US3985835A Expired / Lapsed US ⏱️ 0.0 years remaining

Halogenated esters of phosphorus-containing acids

Assignee: Individual
•
Filing: 1974-11-22
•
Granted: 1976-10-12
•
Expires: 1994-11-22
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Abstract

Abstract This invention deals with new phosphorus-containing esters having the formula R'" 2 np(o) (orcx=cxr') 2 wherein X represents Cl or Br; R represents a divalent hydrocarbon radical of 1-20 carbon atoms; R' represents H, X or R"; R" represents a monovalent hydrocarbon radical of 1-20 carbon atoms; R'" represents hydrogen, a monovalent hydrocarbon radical of 1-20 carbon atoms, a divalent saturated aliphatic hydrocarbon group having 5 carbon atoms between valencies and forming a cyclic structure with the N, or a derivative of said monovalent hydrocarbon radical in which the derivative group is hydroxy, NH 2 , NHR", NR" 2 , -NR""K, R""NHNHC(O)-, R""NHC(O)NH-, ##EQU1## R"COO-, R"CONH- or R"O, R"" represents hydrogen or R"; n represents an integer having a value of 0-50; and K represents hydrogen, R" or -P(O) (ORCX=CXR') 2 . These new esters are useful particularly as fire retardants, agricultural chemicals, fuel additives, plasticizers, monomers and intermediates for the synthesis of other useful derivatives.

Inventors

  • 👤 Gaetano F. D'Alelio

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 13:03
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4071; C07F9/4078

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 53 words
A phosphorus-halogen-nitrogen-containing compound having the formula R'".sub.2 NP(O)(ORCX=CXR').sub.2 wherein X represents Cl or Br; R represents a divalent hydrocarbon radical of 1-20 carbon atoms; R' represents H, X or R"; R" represents a monovalent hydrocarbon radical of 1-20 carbon atoms; and R'" represents hydrogen or a monovalent hydrocarbon radical of 1-20 carbon atoms.
Claim 2
Dependent Claim 53 words
A phosphorus-halogen-nitrogen-containing compound having the formula R'".sub.2 NP(O)(ORCX=CXR').sub.2 wherein X represents Cl or Br; R represents a divalent hydrocarbon radical of 1-20 carbon atoms; R' represents H, X or R"; R" represents a monovalent hydrocarbon radical of 1-20 carbon atoms; and R'" represents hydrogen or a monovalent hydrocarbon radical of 1-20 carbon atoms.
Claim 3
Dependent Claim 10 words
A compound of claim 1 in which X is Cl.
Claim 4
Dependent Claim 10 words
A compound of claim 1 in which X is Br.
Claim 5
Dependent Claim 12 words
A compound of claim 1 in which R is CH 2 .
Claim 6
Dependent Claim 12 words
A compound of claim 4 in which both R'" groups represent hydrogen.
Claim 7
Dependent Claim 18 words
A compound of claim 4 in which one R'" group represents hydrogen and one represents CH 3 .
Claim 8
Dependent Claim 17 words
A compound of claim 1 having the formula C 6 H 5 NHP(O)(OCH 2 CX=CHX) 2 .
Claim 9
Dependent Claim 19 words
A compound of claim 1 having the formula CH 2 =CHC 6 H 4 NHP(O)(OCH 2 CX=CHX) 2 .
Claim 10
Dependent Claim 19 words
A compound of claim 1 having the formula CH 2 =CHC 6 H 4 CH 2 NHP(O)(ORCX=CXR') 2 .
Claim 11
Dependent Claim 21 words
A compound of claim 9 having the formula CH 2 =CHC 6 H 4 CH 2 NHP(O)(OCH 2 CCl=CHCl) 2 .
Claim 12
Dependent Claim 21 words
A compound of claim 9 having the formula CH 2 =CHC 6 H 4 CH 2 NHP(O)(OCH 2 CBr=CHBr) 2 .
Claim 13
Dependent Claim 23 words
A compound of claim 9 having the formula CH 2 =CHC 6 H 4 CH 2 NHP(O)(OCH 2 CCl=CCl 2 ) 2 .
Claim 14
Dependent Claim 23 words
A compound of claim 9 having the formula CH 2 =CHC 6 H 4 CH 2 NHP(O)(OCH 2 CBr=CBr 2 ) 2 .

References Cited (Backward Citations)

US2574517A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-10-12 1980-04-12 1980-10-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-10-12 1984-04-12 1984-10-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-10-12 1988-04-12 1988-10-12 $7700.00 Window Closed / Lapsed

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