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| Number | Title | Issue Date |
| 6761832 | Process for the production of dithiophosphoric acid polysulfide mixtures This invention relates to a process for the production of dithiophosphoric acid poly-sulfide mixtures, which is characterized in that dithiophosphoric acid disulfides are reacted with sulfur at elevated temperatures. The dithiophosphoric acid polysulfide mixtures pr... | 07/13/2004 |
| 5703262 | Process for the preparation of dithiophosphoric acids Dithiophosphoric acids are advantageously produced by reaction of an alcohol or phenol with phosphorus sesquisulphide in the presence of sulphur, preferably at the reflux temperature of the alcohol used.... | 12/30/1997 |
| 5641888 | Synthesis of an O,O' -diesters of thiophosphoric acid, an O-ester of thiophosphonic acid, or a thiophosphinic acid Preparing O,O'-diesters of thiophosphoric acid, O-monoesters of thiophosphonic acid or thiophosphinic acids and their salts, from diesters of phosphorous acid, monoesters of phosphorous acids or phosphinous acids and sulphur in the presence of an aqueous ... | 06/24/1997 |
| 5210261 | Production of phosphorothioate salts Amine salts of phosphorothioic acids, useful for example in lubricant compositions, are made by forming a mixture of sulphur and an amine, and then adding a phosphite ester. The reaction is controlled by the rate of addition of the ester.... | 05/11/1993 |
| 5200099 | Reaction products of dialkyl and trialkyl prosphites with elemental sulfur and their use in lubricant compositions Dialky and trialky phosphites are reacted with sulfur. The resulting product is the desired lubricant additive which is mixed with suitable lubricating oils.... | 04/06/1993 |
| 4959494 | Oxidation of organic compounds with pyrochlore catalysts A method for oxidizing organic compounds by contacting organic compounds with molecular oxygen in the presence of a noble metal pyrochlore having the formula: A2+x B2-x O7-y wherein A is a pyrochlore structure metal cation, and... | 09/25/1990 |
| 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 |
| 4596796 | Dithiolphosphoric acid ester as a soil pesticide A dithiolphosphoric acid ester of the formula, ##STR1## wherein A is sec-butyl or tert-butyl group, and B is iso-propyl, n-butyl, iso-butyl, sec-butyl or tert-butyl group, which is useful as a soil pesticidal composition for pests in soil.... | 06/24/1986 |
| 4469644 | Process for the production of triaryl phosphates Triaryl phosphates are prepared in good yields by contacting the corresponding triaryl phosphites with an oxygen-containing gas in the presence of a catalyst that comprises a halogen component and a cationic cocatalyst at a temperature in the range of 10Â... | 09/04/1984 |
| 4371509 | Oxidizing phosphorus compounds with chlorosulfonic acid The invention relates to a process for oxidizing organic phosphorus compounds of the general formula (I) in which R stands for an organic radical, X stands for halogen and n stands for 0, 1, 2 or 3, to obtain compounds of the general formula (II) in which R, X... | 02/01/1983 |
| 4287136 | Process for the preparation of O,O-dialkylthionophosphoric acid chlorides Preparation of O,O-dialkylthionophosphoric acid chlorides of the formula ##STR1## in which R1 and R2 independently of one another are each an alkyl group having 1-6 carbon atoms, by reacting a dialkyl phosphite-chloride of the f... | 09/01/1981 |
| 4202844 | Process for the production of organic phosphates Organic phosphates are prepared in good yields by contacting the corresponding organic phosphite with an oxygen-containing gas that is preferably oxygen in the presence of a catalyst that comprises nitrogen dioxide in amounts that will provide at least 0.... | 05/13/1980 |
| 4197209 | Lubricant compositions containing sulfur-containing esters of phosphoric acid Trithio- and tetrathiophosphates with mercaptocarboxylic acid derivatives are preeminently suitable as extreme pressure additives for lubricants. They reduce signs of wear and have no or only an insignificant corrosive action on the parts to be protected.... | 04/08/1980 |
| 4189453 | Processes for the production of sulphur-containing esters of phosphoric acid and phosphorous acid Trithio- and tetrathiophosphates with mercaptocarboxylic acid derivatives are preeminently suitable as extreme pressure additives for lubricants. They reduce signs of wear and have no or only an insignificant corrosive action on the parts to be protected.... | 02/19/1980 |
| 4132702 | Phenol esters and amides and polymers stabilized therewith Compounds of the formula I ##STR1## in which R1 and R2 independently of one another denote alkyl, cycloalkyl or aralkyl, R3 denotes hydrogen or, conjointly with R1, denotes tetramethylene, R4 den... | 01/02/1979 |
| 4052485 | Perfluoro compounds containing phosphorus Perfluoro compounds containing dichloro phosphoryl and/or dichlorophosphoryl radicals are provided which are obtained by reacting perfluoroalkylalkenes with phosphorus trichloride in the presence of oxygen. The compounds are useful to obtain oleophobic fi... | 10/04/1977 |
| 3984448 | Production of dialkylthiophosphates Production of dialkylthiophosphates of the general formula: ##EQU1## IN WHICH R1 and R2 stand for identical or different linear and/or branched alkyl radicals having from 1 to 6 carbon atoms, M stands for a metal cation and n st... | 10/05/1976 |
| 3939229 | Preparation of aliphatic phosphates A process for the preparation of trialkyl and trialkenyl phosphates. The process involves oxidation of the corresponding phosphite with oxygen or an oxygen-containing gas. The oxidation is catalyzed by a metal catalyst such as a transition metal carboxyla... | 02/17/1976 |
