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| Number | Title | Issue Date |
| 7569717 | Diaryl alkylphosphonates and method for preparing same A method of making optionally substituted diaryl alkylphosphonates from an optionally substituted arylol, an optionally substituted alkanol, and a phosphorous trihalide is described. ... | 08/04/2009 |
| 7439289 | Benzoylresorcinol-based phosphate ester compounds as flame retardants Benzoylresorcinol-based phosphate esters are obtained by reacting a benzoylresorcinol compound with a chlorophosphate. The benzoylresorcinol-based phosphate esters can function as flame retardants and/or UV stabilizers for polycarbonates (PC), poly(phenylene oxide) ... | 10/21/2008 |
| 6909010 | Facile synthesis of symmetric esters of alkylenebisphosphonic acids A facile synthesis of symmetric esters of C1-C10 alkylenebisphopsphonic acids is disclosed in which a C1-C10 alkylenebis(phosphonic dichloride) is reacted with an alcohol in the presence of a catalytic amount of 1H-tetrazo... | 06/21/2005 |
| 6884401 | Method for removing volatile components from a high viscosity liquid by using rotation pack bed A high viscosity liquid is fed into a rotation pack bed at a position with a distance far enough from a rotation axis, creating a centrifugal force exerted on the high viscosity liquid overwhelming a drag thereof, so that it can flow radially through the rotation pa... | 04/26/2005 |
| 6747167 | Process for the preparation of acid esters The present invention is directed to a process for the preparation of sterically hindered acid esters, e.g., organic phosphites, comprising contacting a sterically hindered hydroxyl-containing compound with an acid halide in the presence of an acid acceptor selected... | 06/08/2004 |
| 6660696 | Thermally stable phosphorothionates as antioxidant, antiwear, friction reducing and extreme pressure lubricant additives from cashew nut shell liquid Phosphorothionate derivatives derived from cashew nut shell liquid (CNSL) for use as an thermally stable antioxidant, antiwear, friction reducing and extreme pressure additive in a lubricant composition are synthesized by the steps of (a) partially hydrog... | 12/09/2003 |
| 6417383 | Thermosensitive cyclotriphosphazene derivatives and a preparation method thereof The present invention relates to novel cyclotriphosphazene derivatives represented by Formula (1) and a preparation method thereof wherein HNA is an amino acid group selected from glycine group(--NHCH2 COO-), aminomalonic acid group(... | 07/09/2002 |
| 5948930 | Process for preparing O-alkyl, O-alkylphosphorochloridothioates The invention relates to process for the preparation of an O-alkyl, O-alkyl phosphorochloridothioate by 1) reacting A) a thiophosphoryl halide with B) an alcohol, in the presence of C) a tertiary amine acid acceptor and D) a solvent, and 2) reacting the r... | 09/07/1999 |
| 5532401 | Process for production of tris(nonylphenyl) phosphite An improved process for the preparation of tris(nonylphenyl) phosphite is described which includes the steps of combining at least a 4 weight percent excess of nonylphenol (preferably 8 weight percent excess) with PCl3 with agitation and heatin... | 07/02/1996 |
| 5414103 | Polyether phosphate esters A polyalkylene glycol ether phosphate ester, or salt thereof, having the formula: Rw --P(O)(OH)3-w (I) wherein w is an integer from 1 to 3, and R is an oil-soluble polyether moiety having the formula: R1 | 05/09/1995 |
| 5210260 | Process for obtaining bis(2,4-di-tert-butylphenyl) halophosphites The invention relates to a process for obtaining phosphorus acid-bis(2,4-di-tert-butylphenyl) ester halides in which a phosphorus acid-2,4-di-tert-butylphenyl ester dihalide is heated in the presence of a catalyst containing nitrogen or phosphorus, or bot... | 05/11/1993 |
| 5081272 | Process for preparation of phosphorodichlorothioates An improved process for preparing a phosphorodichlorothioate of the formula ##STR1## wherein R is: a C1 -C10 alkyl group, optionally substituted with a C1 -C4 alkoxy group, a C1 -C4 Alkylth... | 01/14/1992 |
| 5061818 | Process for transhalogenating a halophosphorus compound with fluoride Phosphorus compounds having at least one chlorine, bromine or iodine bonded directly to phosphorus are transhalogenated with fluorine by reaction with a fluoride salt, e.g., KF, or ammonium fluoride in the presence of a hydrogen halide salt of a pyridine-... | 10/29/1991 |
| 4894469 | Process for making halogenated phosphonophosphoric acid-esters and their use Halogenated phosphonophosphoric acid esters of the general formula ##STR1## in which X stands for a halogen R' stands for an alkylene having from 1 to 4 carbon atoms A stands for ##STR2## R'" stands for identical or different alkyl groups having from... | 01/16/1990 |
| 4686241 | (Haloneocarbyl-substituted)-bis(aliphatic hydrocarbyl)phosphorates with polyurethanes Included are the title phosphorate compounds, and a process to prepare them comprising contacting a carbylphosphorate acid halide with a carbyloxide. For example, (3-chloro-2,2-bis(bromomethyl)propyl)bis(ethyl)phosphorate can be prepared with 3,3-bis(brom... | 08/11/1987 |
| 4623744 | Phosphorous containing derivatives of bicyclic amide acetals A process for the preparation of novel phosphorous containing compounds by the reaction of bicyclic amide acetals with certain types of phosphorous compounds is disclosed.... | 11/18/1986 |
| 4427603 | Process for making phosphonic acid ester chlorides The disclosure relates to a process for making phosphonic acid ester chlorides of the general formula (I) in which R stands for an alkyl group with 1 to 6 carbon atoms or an aryl group and R' stands for an alkyl group with 1 to 20 carbon atoms or an aryl ... | 01/24/1984 |
| 4290978 | Production of phosphoro chloride thiolates A process for the production of a phosphoro chloride thiolate of the formula ##STR1## wherein R1 is alkyl, alkoxyalkyl, aryl, or aryl substituted by alkyl, alkoxy or halogen, and R2 is alkyl, comprising reacting a mixture of a d... | 09/22/1981 |
| 4213976 | Haloalkyldithiophosphoric acid esters Haloalkyldithiophosphoric acid esters of the formula ##STR1## where R1 is methyl or ethyl, R2 is alkyl of 2 to 4 carbon atoms, A is linear or branched alkylene of 2 to 4 carbon atoms and X is chlorine or bromine, which are activ... | 07/22/1980 |
| 4182733 | Process for preparing phosphoric acid esterhalides A phosphoric acid esterchloride is prepared by simultaneously reacting a phosphoric acid ester of formula I ##STR1## wherein R is alkoxy with 1-8 carbon atoms optionally substituted by halogen, and R' is C1 -C8 alkoxy radical, o... | 01/08/1980 |
| 4138452 | Process for preparing phosphoric acid esterhalides A phosphoric acid esterchloride is prepared by simultaneously reacting a phosphoric acid ester of formula I ##STR1## wherein R is alkoxy with 1 - 8 carbon atoms optionally substituted by halogen, and R' is C1 -C8 alkoxy radical,... | 02/06/1979 |
| 4118435 | Catalyzed production of phosphorous and phosphonous acid ester chlorides In the production of phosphorous or phosphonous acid ester chlorides of the formula wherein R and R' are various organic radicals, m = 0 or 1, n = 1 or 2, and m+n = 1 or 2, By reacting a trialkylphosphite, a triarylphosphite, a dialkylchlorophosphite or a diar... | 10/03/1978 |
| 4100230 | Process for preparing mono- and disubstituted mercapto-phosphorothionochloridates Mono- and disubstituted mercaptophosphorothionochloridates are prepared by reacting a disubstituted sulfide having the formula wherein each R is an independently selected alkyl, cycloalkyl or benzyl, with phosphorus pentasulfide and thiophosphorus trichloride ... | 07/11/1978 |
| 4079103 | Process for the production of phosphite chlorides Process for the production of phosphite chlorides comprising the reaction of phosphorus trichloride and a trialkyl phosphite or a triphenyl phosphite in the presence of an aprotic solvent.... | 03/14/1978 |
| 4056581 | Process for the preparation of phosphorodichloridothiolates Certain S-alkyl, -cycloalkyl, -aralkyl, and -aryl phosphorodichloridothiolates are prepared by reacting a sulfenyl chloride, which can be prepared in situ, with phosphorus trichloride and a carboxylic acid or water.... | 11/01/1977 |
| 4034022 | Phosphoric esters of polyfluorinated alcohols, and their preparation Phosphoric esters of polyfluorinated alcohols are disclosed comprising at least one isomer of phosphorous esters of polyfluorinated alcohols, or one of the derivatives thereof, said esters and derivatives thereof corresponding to the general formula: ... | 07/05/1977 |
| 4032602 | Process for the production of phosphite chlorides Process for the production of phosphite chlorides comprising the reaction of phosphorus trichloride and a trialkyl phosphite or a triphenyl phosphite in the presence of a hydrous quaternary compound of nitrogen or phosphorus.... | 06/28/1977 |
| 3978173 | Preparation of O.S.-dimethyl phosphoroamidothioates O,S-dimethyl phosphoroamidothioates are prepared by reacting in the liquid phase methyl phosphorodichloridite with methyl sulfenyl chloride in the presence of a lower alkanoic acid to produce O,S-dimethyl phosphorochloridothioate and subsequently reacting... | 08/31/1976 |
