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| Number | Title | Issue Date |
| 7074737 | Alkylation of triphenylphosphate A process for the alkylation of triphenylphosphate by reaction of triphenylphosphate with an olefin in the presence of an effective amount of a solid acid catalyst selected from the group consisting of at least one zeolite, heteropolyacid or salt thereof, metal trif... | 07/11/2006 |
| 6992201 | Process for preparing phosphites and transition metal complexes The present invention relates to a process for preparing phosphites and their transition metal complexes and also to their use in catalytic processes. ... | 01/31/2006 |
| 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 |
| 6673955 | Preparation of triethyl phosphate The invention relates to a process for preparing triethyl phosphate by reacting phosphorus oxychloride with a greater than stoichiometric quantity of ethanol under reduced pressure at temperatures of from 0 to 50° C. in a reaction vessel, wherein a) ... | 01/06/2004 |
| 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 |
| 6613928 | Process for the preparation of condensed phosphoric esters A condensed phosphoric ester having a very low content of isopropenyl phenyl diphenyl phosphate, which reduces heat resistance and causes the contamination of molds during the molding when the condensed phosphoric ester is used as an additive for a resin,... | 09/02/2003 |
| 6605736 | Process for the preparation of condensed phosphoric esters A condensed phosphoric ester having a very low content of volatile components is provided by a process including a first step of reacting a phosphorus oxytrihalide with a bisphenol-based compound to prepare a phosphorohalidate; a second step of removing u... | 08/12/2003 |
| 6605737 | Process for the preparation of condensed phosphoric acid esters An objective of the present invention is to provide a method for preparing a high-purity, condensed phosphoric ester made of a bisphenol A derivative and having a very low content of monomer-type phosphoric ester that causes reduction in the heat resistan... | 08/12/2003 |
| 6528559 | Crosslinked phenoxyphosphazene compounds, process for the preparation thereof, flame retardants, flame-retardant resin compositions, and moldings of flame-retardant resins This invention provides a halogen-free flame retardant which advantageously has a high melting point and a low volatility and does not impair the inherent properties of resins. The flame retardant of the invention is a phosphazene compound crosslinked wit... | 03/04/2003 |
| 6489502 | Process for preparing phosphoric acid esters The present invention relates to a process for preparing phosphoric acid esters, in particular a process for preparing monomeric bridged bisaryl diphosphates, wherein a water-binding agent is added to the reaction solution.... | 12/03/2002 |
| 6486339 | Phosphorylated product made by heating alkylated phenol in presence of solid acid catalyst The isomerization of an alkylated phenol composition that contains an ortho-alkyl substituted phenol component to isomerize and reduce the level of ortho-alkyl substituted phenol component therein can be accomplished by heating that composition in the pre... | 11/26/2002 |
| 6462216 | Process for producing phosphorohalidate The present invention provides a process for producing phosphorohalidate characterized in that a crude reaction product obtained by reacting a phosphorus oxyhalide with an aromatic hydroxy compound in the presence of a Lewis acid catalyst is purified by d... | 10/08/2002 |
| 6420465 | Process for preparing phosphoric acid esters The present invention relates to a process for preparing phosphoric acid esters, in particular monomeric bisaryl diphosphates, or bridged phosphates.... | 07/16/2002 |
| 6399685 | Purification of arylene polyphosphate esters Emulsion formation is minimized or prevented and hydrolytic product degradation is suppressed during purification of impure bisphenol-A bis(diphenylphosphate). This is accomplished by forming a hydrocarbon solution of bisphenol-A bis(diphenylphosphate) pl... | 06/04/2002 |
| 6388120 | Continuous process for the manufacture of phosphoric acid esters A method of making phosphoric acid esters by continuously reacting a phosphorus oxyhalide with a polyol to produce at least about 60% normalized monomeric halophosphate intermediate, and then reacting the monomeric halophosphate intermediate with an alcoh... | 05/14/2002 |
| 6319432 | Bisphenol-A bis(diphenyl phosphate)-based flame retardant Disclosed is a flame retardant comprising bisphenol A bis(diphenyl phosphate) and its dimer, the former having an HPLC determined 78 to 87 area % and an 85 to less than 90 normalized area %, the normalized area % being based on the total HPLC area % of th... | 11/20/2001 |
| 6235689 | Polymeric perfluoro polyether phosphate lubricant topcoat The degree of bonding of a perfluoro polyether lubricant topcoat to a magnetic recording medium is improved by forming a polymeric phosphate derivative thereof. In an embodiment of the present invention, a perfluoro polyether phosphate polymer is formed w... | 05/22/2001 |
| 6232485 | Production of phosphate esters A process for the production of liquid meta-rich triaryl phosphate esters having low triphenyl phosphate content and low viscosity comprises (a) an alkylation stage wherein a phenol is reacted with an olefin having 2 to 12 carbon atoms in the presence of ... | 05/15/2001 |
| 6211396 | Process for producing halogen-containing phosphate ester A process for producing a halogen-containing phosphate ester includes the steps of: (i) reacting a phosphorus halide selected from the group consisting of phosphorus oxyhalides and phosphorus pentahalides with a halogen-containing hydroxy compound to obta... | 04/03/2001 |
| 6204404 | Process for preparing ester compounds A process for preparing an ester compound comprising reacting a halogen-substituted aliphatic hydroxy compound or aromatic hydroxy compound with a phosphorus oxyhalide or phosphorus pentahalide in the presence of 0.005 to 10 mol % of a phosphorus trihalid... | 03/20/2001 |
| 6184275 | Crystalline polymer composition A crystalline polymer composition comprising 100 parts by weight of a crystalline polymer and 0.005 to 5 parts by weight of a compound represented by formula (I): ##STR1## wherein R1 and R2 each independently represent an alkyl group... | 02/06/2001 |
| 6075159 | Phosphite, a process for producing the same and a use thereof A phosphite represented by the formula (I): ##STR1## wherein n repesents 1 or 2; A represents alkylene; B represents a direct bond or alkylene; one of Y and Z represents a hydroxyl group, alkoxy or aralkyloxy, and the other one represents a hydrogen ... | 06/13/2000 |
| 6069267 | Selective synthesis of organodiphosphite compounds A process for the preparation of organodiphosphites of the formula (R1 O)2 P(OZO)P(OR1)2 wherein R1 and Z are different substituted or unsubstituted aryl groups.... | 05/30/2000 |
| 6034260 | Dialkylphosphoric acids by the methanol method The present invention relates to a process for the preparation of symmetrically substituted phosphoric acid diesters of long-chain linear or branched alcohols of chain length C4 to C22.... | 03/07/2000 |
| 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 |
| 5891939 | Phosphites, process for producing them and their use Phosphites inhibitors for organic material represented by the formula: ##STR1## wherein R1, R2, R4 and R5 independently represent hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group,... | 04/06/1999 |
| 5830936 | Phosphites, process for producing them and their use Phosphites which are a deterioration inhibitors for organic material represented by the formula: ##STR1## wherein R1 and R2 independently represent a hydrogen atom, or certain hydrocarbyl radicals; X represents a direct bond, a ... | 11/03/1998 |
| 5616767 | Process for making biphenylene and bisphenylene phosphites A process is provided for making 2,2 bisphenyl phosphites and 2,2 biphenyl phosphites. The process provides pure product without requiring a recrystallization step. The process involves reacting phosphorous trichloride with either (a) an aromatic diphenol... | 04/01/1997 |
| 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 |
| 5401845 | Asymmetric aryl phosphites Compounds of the formula I ##STR1## in which x is 1, 2 or 3, and, if x=1, R1 is C1 -C30 alkyl, C1 -C18 alkyl substituted by halogen, --COOR2, --CN, --NR3 R4 or by... | 03/28/1995 |
| 5281741 | Process for preparing aryldiphosphate esters A process is provided for preparing an aryl diphosphate ester containing less than 5% by weight of triarylphosphate. The process reacts a solution of a dihydroxy aromatic compound and an excess of phosphorus oxychloride in a nonaqueous solvent having a bo... | 01/25/1994 |
| 4929746 | Dentin and enamel adhesive Organic esters of chlorine-containing or bromine-containing phosphorus acids and BIS-GMA, as well as organic esters of phosphorus acids having chlorine or bromine bonded directly to phosphorus, the organic radical of said esters containing at least one po... | 05/29/1990 |
| 4824603 | Amphoteric and zwitter-ionic phosphate surfactants Amphoteric and zwitter-ionic phosphate surfactants corresponding to the following formula ##STR1## (a) in which R1 is a C6 -C22 alkyl group, a group R4 (OCn H2n)x --, where ... | 04/25/1989 |
| 4800229 | Phosphated acrylates of alkoxylated alcohols Reactive dispersants for magnetic recording media are prepared by sequentially phosphating and esterifying or esterifying and phosphating alkoxylated alcohols having at least two carbon atoms and at least two hydroxyl groups. The phosphating agent can be ... | 01/24/1989 |
| 4751320 | Phosphoric ester and process for producing same A novel phosphoric ester represented by the following formula (I): ##STR1## is produced by halogenating the hydroxyl group of a monoalkyl phosphoric acid, reacting the halogenated product with N-benzoyloxycarbonyl serine ester and then removing prote... | 06/14/1988 |
| 4724265 | Process for preparing liquid triaryl thiophosphate mixtures Liquid mixed triaryl thiophosphate mixtures can be prepared by forming a mixture of phenol and substituted phenols, forming a phosphite from that mixture and sulfurizing the phosphite, washing the thiophosphate with aqueous base, and drying the so washed ... | 02/09/1988 |
| 4697029 | Phosphobrominated polyetherpolyols and processes for production thereof Phosphobrominated polyetherpolyols which contain in their molecule oxyalkylene radicals bound to phosphorus atoms in the phosphate or phosphonate state and 1,4-dioxy-2,3-dibromo-2-butylene radicals in which the ratio of the total number of oxyalkylene rad... | 09/29/1987 |
| 4629803 | Continuous phosphorylation process A continuous process for producing alkyl and alkoxy alkyl phosphates in which an alkali metal alkoxide at a temperature at 50° C. or less is continuously fed to a reactor while phosphorus oxychloride is continuously fed to the reactor under ratio control... | 12/16/1986 |
| 4492660 | Low temperature stable tert-butylphenyl diphenyl phosphate A process for producing tert-butylphenyl diphenyl phosphate which is stable at low temperature by a process wherein phenol is butylated to produce tert-butylphenol which is isomerized to produce mixed meta and para isomers thereof, and which thereafter is... | 01/08/1985 |
| 4438013 | Phosphorylated and thiophosphorylated poly(oxyalkylated) hydrazines and selected adducts and their use as corrosion inhibitors Disclosed are compositions comprising the reaction products of poly(oxyalkylated) hydrazine and at least one compound selected from the group consisting of phosphorylation agents, thiophosphorylation agents, and mixtures thereof; wherein the poly(oxyalkyl... | 03/20/1984 |
