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Class Information
Number: 987/44
Name: Organic compounds containing a bi, sb, as, or p atom or containing a metal atom of the 6th to 8th group of the periodic system > Phosphorus compounds (9/02; 9/06) > Compound contains a ring which is devoid of a metal atom and contains at least one p atom as ring member (9/6564; 9/6564v; 9/6568; 9/6568b; 9/6568c; 9/6568d; 9/6568e; 9/6568f) > Ring contains o and p only, or may include in addition to the required o and p, only c (9/6571) > Contains p and o as ring atoms and wherein the p atom is directly bonded to a c atom (9/6571l) > P atom bonded to c is also bonded directly to two o atoms which are in the same ring as p (9/6571l4)
Description: Subject matter wherein the ring phosphorus atom is bonded directly to two ring oxygen atoms.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4952740 |
Cyclic phosphonites |
Aug. 28, 1990 |
| 4900860 |
Process for preparing phosphonyloxyacyl amino acids |
Feb. 13, 1990 |
| 4885380 |
Process for preparing phosphonyloxyacyl amino acids and derivatives thereof |
Dec. 5, 1989 |
| 4879400 |
Process for producing alpha-(benzylidene)acetonylphosphonates |
Nov. 7, 1989 |
| 4827010 |
Cyclic phosphonic monoesters and their preparation |
May. 2, 1989 |
| 4749645 |
Heterocyclic phosphorus compound stabilizers |
Jun. 7, 1988 |
| 4727144 |
Certain intracyclic or extracyclic phosphorous containing coumarins useful as laser dyes |
Feb. 23, 1988 |
| 4723985 |
Herbicidal phenoxybenzoic acid derivatives |
Feb. 9, 1988 |
| 4678777 |
Pest-combating agents containing phosphorus-heterocyclic compounds |
Jul. 7, 1987 |
| 4602038 |
Insecticidal cyclopropane carboxylates |
Jul. 22, 1986 |
| 4587362 |
Process for preparing oligomeric or polymeric methyl phosphonamides |
May. 6, 1986 |
| 4537853 |
Photographic silver halide material containing a ballasted electron-donor precursor compound |
Aug. 27, 1985 |
| 4520152 |
Flame retardant composition of polyphenylene ether, styrene resin and cyclic phosphonate |
May. 28, 1985 |
| 4463113 |
Bis-phenol phosphates as clarifiers for polyolefin resins |
Jul. 31, 1984 |
| 4456566 |
Process for preparing amides of methylphosphonates |
Jun. 26, 1984 |
| 4439564 |
5-Membered cyclic phosphonates and compositions thereof |
Mar. 27, 1984 |
| 4420437 |
Preparation of a 2-aralkyl-5,5-dialkyl-1,3,2-dioxaphosphorinan-2-one from 2-aralkoxy-5,5-dialkyl-1,3,2-dioxaphosphorinane |
Dec. 13, 1983 |
| 4402882 |
Process for the production of diphosphaspiro compounds |
Sep. 6, 1983 |
| 4390477 |
Diphenyl pentaerythritol diphosphonate |
Jun. 28, 1983 |
| 4351779 |
Process for the production of methylaminomethylphosphonic acid esters |
Sep. 28, 1982 |
| 4317769 |
Flame retardants |
Mar. 2, 1982 |
| 4293472 |
Stabilized synthetic resin composition |
Oct. 6, 1981 |
| 4276234 |
Process for preparing pentaerithritol methylphosphonates having at least one hydroxyl group of pentaerithritol unesterified |
Jun. 30, 1981 |
| 4268459 |
Cyclic diphosphonates |
May. 19, 1981 |
| 4250320 |
Process for producing substituted benzoxaphospholes |
Feb. 10, 1981 |
| 4228109 |
1-Alkyl-2,2-dichloro-2(phosphinyl)acetates |
Oct. 14, 1980 |
| 4219510 |
Benzoxaphospholes |
Aug. 26, 1980 |
| 4207271 |
Bis(2,2,2-trihydroxymethyl ethane) methylphosphonate |
Jun. 10, 1980 |
| 4174343 |
Pentaerythrityl diphosphonate-ammonium polyphosphate combinations as flame retardants for olefin polymers |
Nov. 13, 1979 |
| 4152373 |
Process for preparing diaryl methylphosphonate and derivatives thereof |
May. 1, 1979 |
| 4151229 |
Process for the manufacture of aminoalkyl-phosponic acid esters |
Apr. 24, 1979 |
| 4113669 |
Polymers flameproofed with 1,2-oxaphospholanes |
Sep. 12, 1978 |
| 4105630 |
Epoxy resins flameproofed with 1,2-oxaphospholanes |
Aug. 8, 1978 |
| 4098759 |
Bromine-containing cyclic phosphonic acid esters |
Jul. 4, 1978 |
| 4094926 |
Polymeric phosphorus compounds and flame retardant polyethyleneterephthalate containing said polymers |
Jun. 13, 1978 |
| 4093588 |
Hindered phenolic cyclic phosphonates and stabilized compositions |
Jun. 6, 1978 |
| 4086205 |
Hydrogen phosphonates |
Apr. 25, 1978 |
| 4073767 |
Hydrogen phosphonates and polymers containing them as flame retardants |
Feb. 14, 1978 |
| 4071583 |
Cyclic phosphonates |
Jan. 31, 1978 |
| 4070336 |
Hydrogen phosphonates and polymer compositions containing them as flame retardants |
Jan. 24, 1978 |
| 4069340 |
Immonium salts and derivatives thereof |
Jan. 17, 1978 |
| 4067932 |
Derivatives of phosphorus-containing aldehydes and ketones |
Jan. 10, 1978 |
| 4066812 |
Fire retardant polyester textile materials and method of making same |
Jan. 3, 1978 |
| 4061604 |
Flameproofing of plastics |
Dec. 6, 1977 |
| 4045518 |
1,2-Oxaphospholanes |
Aug. 30, 1977 |
| 4042649 |
1,2-Oxaphospholanes |
Aug. 16, 1977 |
| 4022757 |
Dicarbamic acid diesters containing phosphorus |
May. 10, 1977 |
| 4001176 |
Ring phosphonates as flame-retardants |
Jan. 4, 1977 |
| 3991019 |
Process for forming a flame retardant article and article thereof |
Nov. 9, 1976 |
| 3984502 |
Method of preparing vinyl phosphonate ester of pentaerythritol |
Oct. 5, 1976 |
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