Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7265237 | Chiral monophosphites as ligands for asymetrical synthesis Certain chiral monophosphites and their monothio derivatives are suitable as ligands in the asymmetrical transition-metal-catalyzed hydrogenation, hydroborination and hydrocyanation of prochiral olefins, ketones and imines. ... | 09/04/2007 |
| 7244688 | Method for in situ immobilization of water-soluble nanodispersed metal oxide colloids The invention relates to heterogeneous catalysts which are particularly easy to produce. Said heterogeneous catalysts are generated by immobilizing preformed monometallic or multimetallic metal oxide particles in situ on an oxidic or non-oxidic carrier, wherefore me... | 07/17/2007 |
| 7026478 | Iron catalyzed cross coupling reactions of aromatic compounds A process for the production of compounds Ar—R1 by means of a cross-coupling reaction of an organometallic reagent R1-M with an aromatic or heteroaromatic substrate Ar—X catalyzed by one or several iron salts or iron complexes as catalysts ... | 04/11/2006 |
| 6824982 | High-throughput-screening method for determining enantioselectivity The present invention relates to a method for determining the enantioselectivity of kinetic resolution processes and of asymmetrically proceeding reactions of prochiral compounds bearing enantiotopic groups by using isotope-labeled substrates so that the reaction pr... | 11/30/2004 |
| 6814782 | Method for reversibly storing hydrogen on the basis of alkali metals and aluminum A method for reversibly storing hydrogen, characterized in that reversible hydrogen storage materials are used which contain mixtures of aluminum metal with alkali metals and/or alkali metal hydrides and transition metal and/or rare-earth metal catalysts. ... | 11/09/2004 |
| 6787676 | Process for the preparation of non-chiral and optically active organic compounds containing hydroxyl groups Non-chiral and, in particular, optically active alcohols are prepared from a carbonyl compound with hydrogen in the presence of a catalyst, a base and optionally a diamine in an advantageous manner by using a catalyst that contains both a support-bonded Ru(II) compl... | 09/07/2004 |
| 6749778 | Process for the synthesis of organomagnesium compounds using catalysts A process for the preparation of organomagnesium compounds from organic halides and magnesium metal in the presence of transition metal catalysts using an activity-enhancing main group metal component. The latter is a compound of a metal of Periodic Table groups 1, ... | 06/15/2004 |
| 6720281 | Chiral phosphorus ligands and the use thereof in the production of optically active products The present invention relates to novel chiral phosphorus compounds which can be readily prepared from quinoline derivatives as inexpensive starting compounds and have the general formula I wherein R1, R2 | 04/13/2004 |
| 6525209 | Method of producing epoxides The present invention relates to the preparation of epoxides by the oxidation of olefins using molecular oxygen with the addition of an aldehyde additive, characterized in that the oxidation is performed in compressed carbon dioxide as the solvent, which,... | 02/25/2003 |
| 6507636 | Rapid X-ray diffraction screening method of polymorph libraries created in multi-well plates Method and device for rapid characterization of arrays of crystalline, polycrystalline or amorphous materials; in particular for the formation and X-ray diffraction analysis of polymorph libraries and the discovery of new crystal forms. According to one a... | 01/14/2003 |
| 5936100 | Synthesis of functionalized macrocycles by ring closing metathesis The invention concerns an improved process for the preparation of macrocyclic products with 12 or more ring atoms containing one or more polar functional groups on the ring and/or one or more heteroatoms within the ring by ring closing metathesis (RCM) of... | 08/10/1999 |
| 5925463 | Electrochemical reduction of metal salts as a method of preparing highly dispersed metal colloids and substrate fixed clusters by electrochemical reduction of metal salts The object of the invention is a method for the electrochemical preparation of metal colloids with particle sizes of less than 30 nm, characterized in that one or more metals of groups Ib, IIb, III, IV, V, VI, VIIb, VIII, lanthanoides, and/or actinoides o... | 07/20/1999 |
| 5817493 | Lipases immobilized in sol-gel processed hydrophobic materials A process for the preparation of immobilized lipases through reaction on a silica matrix containing non-hydrolyzable organic substituents attached through Si--C bonds.... | 10/06/1998 |
| 5250184 | Procedure for the preparation of microporous ceramic membranes for the separation of gas and liquid mixtures Microporous membranes for the separation of gas and liquid mixtures. The new membranes show a temperature stability up to 500° C. and a gas separation with separation factors better than the Knudsen limit. Continuous microporous inorganic membranes of an... | 10/05/1993 |
| 5141676 | Soluble magnesium hydrides, method of preparing them, and use thereof Organic-solvent soluble magnesium hydrides of the formulas (MgH2)n. MgQ2 (II) (MgH2)n. RMgX (III) ##STR1## are prepared by catalytically hyd... | 08/25/1992 |
| 5093539 | Process for preparing -olefin polymers and oligomers The invention relates to polymers and oligomers characterized in that they have been prepared from -olefin monomers or mixtures thereof and the distances between the methyl branching paints are controllable by the selection of the -olefins a... | 03/03/1992 |
| 5069894 | Process for preparing finely divided highly reactive magnesium and use thereof The reversible preparation of active magnesium hydride MgH2 by reaction of magnesium with molecular hydrogen at a pressure of from 1 to 2 bar and at a temperature of from 150° C. to 250° C. The improvement comprises producing the magnesium by... | 12/03/1991 |
| 5026877 | Optically pure 1,3-dioxenones, methods for preparing same and use thereof Disclosed are new 1,3-dioxenones having the formulae ##STR1## in an optically pure state, a process for preparing same and the use thereof.... | 06/25/1991 |
| 4912274 | Azaphospholenes and use thereof The invention relates to azaphospholenes of the type ##STR1## wherein R1 and R2 may be alkyl, aryl and aralkyl groups, processes for preparing same and the use thereof.... | 03/27/1990 |
| 4832934 | Process for preparing halogen magnesium alanate and use thereof The present invention relates to [Mg2 X3 (Ether)y]+ [AlH4 ]- in which X is halogen, ether is an aliphatic or cyclic ether, and y is from 0 to 6.... | 05/23/1989 |
| 4829772 | Method of and device for storing and transforming heat and generating cold A method of storing and transforming heat and of generating cold by means of two metal-hydride and metal-hydrogen systems operating in conjunction in closed circulation at different temperatures. Magnesium hydride, especially active magnesium hydride, is ... | 05/16/1989 |
| 4713110 | Process for preparing finely divided metal powders The invention relates to a process for preparing finely divided metal powders, which process is characterized in that metal salts are reacted with magnesium, to which a catalytic amount of anthracene and/or magnesium anthracene or of one of their derivati... | 12/15/1987 |
| 4554152 | Method of preparing active magnesium-hydride or magnesium hydrogen-storer systems A method of preparing an active magnesium-hydride or magnesium hydrogen-storer system which can reversibly take up H2, comprising contacting finely divided magnesium hydride or metallic magnesium with a solution of a metal complex or of a metal... | 11/19/1985 |
| 4554153 | Process for the production of magnesium hydrides A process for the production of hydrides of magnesium, comprising reacting magnesium with hydrogen in the presence of magnesium.... | 11/19/1985 |
| 4469638 | Production of transition metal complexes The invention relates to a process for the production of complex compounds of the transition metals which is characterized in that transition metals are reacted with magnesium, to which a catalytic quantity of anthracene and/or magnesium anthracene has be... | 09/04/1984 |
| 4454352 | Pure enantiomers of bicyclo[2.2.2]oct-5-en-2-ones, processes for their production and their use New bicyclo[2.2.2]oct-5-en-2-ones of the formula Ia and Ib in the form of pure enantiomers and processes for preparing them are described. The compounds are used for the preparation of pure enantiomers of the formula V by sensitized photoreaction or of co... | 06/12/1984 |
| 4454243 | Catalyst system for production of organolithium compounds and lithium hydride A catalytic system is provided for the lithiation of -olefins and ,ω-diolefins with concurrent production of lithium hydride. The catalysts include oxygen and sulfur containing organic compounds and polycyclic aromatics which can be combine... | 06/12/1984 |
| 4421156 | Process for the optimized heat transfer from carriers of reversible, heterogeneous evaporation processes for the purpose of generating heat or cold and apparatus for carrying out the process A process for the optimized heat transfer from carriers of reversible, heterogeneous evaporation processes for the purpose of generating heat and cold by means of the principle of the heat pipe is described, which comprises arranging the carrier of the re... | 12/20/1983 |
| 4413670 | Process for the energy-saving recovery of useful or available heat from the environment or from waste heat A process for the energy-saving recovery of useful heat from the environment or from waste heat with the use of a reversible chemical reaction comprising, charging and discharging alternatingly and successively by pressure variation with hydrogen two vess... | 11/08/1983 |
| 4370488 | Alkali metal complex compounds The invention includes novel alkali metal complex compounds (and processes for their preparation) which are useful, inter alia for the hydrogenation of alkali metals at room temperature or below room temperature to form hydrides or nitrides.... | 01/25/1983 |
| 4354982 | Production of organolithium compounds and lithium hydride A catalytic system is provided for the lithiation of -olefins and ,ω-diolefins with concurrent production of lithium hydride. The catalysts include oxygen and sulfur containing organic compounds and polycyclic aromatics which can be combine... | 10/19/1982 |
| 4331695 | Production of fats and oils from vegetable and animal products Fats or oils are extracted from animal or vegetable products by a process of contacting the product with a solvent in the liquid phase and at a temperature below the critical temperature of the solvent to extract fat or oil from the product, separating th... | 05/25/1982 |
| 4266061 | Process for preparation of 2-vinylpyridine from acetylene and acrylonitrile A process is described for the catalytic, selective preparation of 2-vinylpyridine from acetylene and acrylonitrile using a cyclopentadienylcobalt catalyst or π-allylcobalt catalyst at elevated temperature in an inert solvent, wherein the acrylonitrile c... | 05/05/1981 |
| 4198432 | Process for the production of spice extracts Process for the preparation of spice extracts by extraction of the natural spice with a supercritical gas such as carbon dioxide in which the aroma contents are first extracted with a dry gas, the flavor contents are then extracted with a moist gas and th... | 04/15/1980 |
| 4153063 | Process for the extraction of nicotine from tobacco Process for extracting nicotine is disclosed in which tobacco is exposed to an extracting solvent in either liquid or gaseous state at temperatures below about 100° C. and at high pressures. The aroma generating substances can be removed by conducting th... | 05/08/1979 |
| 4152366 | Optically active 3-methyl-pentene-1 Optically active compounds are prepared from optically inactive unsaturated hydrocarbons by reacting at least one unsaturated hydrocarbon in the presence of a catalyst prepared by combining a nickel compound, a Lewis acid and an optically active phosphine... | 05/01/1979 |
| 4125698 | Polymerization of ethylenically unsaturated hydrocarbons Method for the polymerization of alpha-olefins, e.g., ethylene and its higher homologs, to produce high molecular weight polymers by contacting the alpha-olefin or an alpha-olefin mixture to be polymerized with a catalyst formed from a mixture of a first ... | 11/14/1978 |
| 4123559 | Process for the production of spice extracts Process for the preparation of spice extracts by extraction of the natural spice with a supercritical gas such as carbon dioxide in which the aroma contents are first extracted with a dry gas; the flavor contents are then extracted with a moist gas and th... | 10/31/1978 |
| 4104140 | Process for the electrochemical synthesis of organic metal compounds Process for reacting an H-acidic organic compound, in which the acidic H-atom is bonded to the organic radical by an oxygen or a sulphur atom, e.g. an alcohol, with a metal having a standard potential which is more positive than -1.66 volts and which at m... | 08/01/1978 |
| 4104409 | Production of hop extracts Process for extraction of hops utilizing supercritical gases such as carbon dioxide.... | 08/01/1978 |
