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Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
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| Number | Title | Issue Date |
| 7601667 | Sulfonate catalyst and method of producing alcohol compound using the same A sulfonate catalyst represented by the formula below and a ketone compound are placed in a solvent, and the ketone compound is hydrogenated by mixing in the presence of hydrogen to produce an optically active alcohol. ... | 10/13/2009 |
| 7385064 | Catalysts for use in enantioselective synthesis Disclosed are compounds having the following formula: in which Z11 is selected from a substituted or unsubstituted saturated adamantyl or other polycyclic group and a substituted or unsubstituted branched acyclic... | 06/10/2008 |
| 7335800 | Hydrogenation catalyst and hydrogenation method The present invention provides a hydrogenation catalyst effective for hydrogenating 3-hydroxypropionaldehyde to 1,3-propanediol. The hydrogenation catalyst comprises an α-alumina support, nickel, ruthenium, and a promoter. The nickel is deposited on the α-alumina ... | 02/26/2008 |
| 7294602 | Hydroformylation process A process for the production of 4-hydroxybutyraldehyde is described. The process comprises reacting allyl alcohol with a mixture of carbon monoxide and hydrogen in the presence of a solvent and a catalyst system comprising a rhodium complex and a trans-1,2-bis(bis(3... | 11/13/2007 |
| 7250526 | Transfer hydrogenation process and catalyst A catalytic transfer hydrogenation process is provided. The catalyst employed in the process is a metal hydrocarbyl complex which is coordinated to defined bidentate ligands substituted with at least one group selected from an optionally substituted sulphonated hydr... | 07/31/2007 |
| 7223879 | Ligands for metals and improved metal-catalyzed processes based thereon One aspect of the present invention relates to ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom and carbon-carbon bond-forming reactions. ... | 05/29/2007 |
| 7217675 | Catalyst composition This invention relates to transition metal catalyst compounds represented by the formula: LMX2 wherein M is a Group 7 to 11 metal; L is a tridentate or tetradentate neutrally charged ligand that is bonded to M by least three or four nitrogen atoms, and at... | 05/15/2007 |
| 7176158 | Polymerization catalyst composition Copolymerization of Ni(H) or Co(II) acenaphthene diimine complexes containing olefinic substituents on aryl groups in the presence of a free radical initiator results in polymerized late transition metal catalysts which can be used for olefin polymerization or oligo... | 02/13/2007 |
| 7160835 | Bisphosphine process for producing the same and use thereof Bisphosphines represented by the general formula (I) wherein Ar1 and Ar2 each represents an arylene group which may be substituted; R1 and R2 each represents an alkyl g... | 01/09/2007 |
| 7148176 | Production of novel phosphane ligands and use in catalytical reactions The present invention is directed to phosphine ligands and the use of such ligands in catalytic complexes with transition metals. The catalysts may be used in a variety of reactions and are especially useful for refining halogenoaromatics. ... | 12/12/2006 |
| 7144839 | Polymerization catalysts A transition metal complex having the following Formula (A): wherein the monovalent groups R1 and R2 are —Ra, —ORb, —NRcRd, and —NHRe; the monovalent groups Ra, Rb | 12/05/2006 |
| 7141687 | N'-substituted N-acylamidine metal transition complexes and their use as catalysts The invention relates to N′-substituted N-acylamidine transition metal complexes of the general formula (I), wherein M represents a transition metal, selected from the group of metals including Ni, Cu, Ru, Rh, Pd, Os, Ir and Pt, X represents Cl, Br, triflate, meth... | 11/28/2006 |
| 7109343 | Metal catalysts and methods for making and using same Compounds having the formula: are disclosed. M1 and M2 are the same or different and are transition metal atoms or ions; Z2 and Z3, independently, are the atoms necessa... | 09/19/2006 |
| 7049473 | Hydroformylation The present invention relates to a process for hydroformylating in the presence of a catalyst comprising at least one complex of a metal of transition group VIII with mono-phosphorus compounds which are capable of dimerizing via noncovalent bonds as ligands, to such... | 05/23/2006 |
| 7030051 | Dirhodium catalyst compositions and methods for using same Disclosed is method for increasing the efficiency of a dirhodium catalyst. The method includes providing a dirhodium catalyst, providing an organic ester, and contacting the dirhodium catalyst and the organic ester under conditions effective to increase the efficien... | 04/18/2006 |
| 7026498 | Ligands for metals and improved metal-catalyzed processes based thereon One aspect of the present invention relates to novel ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom and carbon-carbon bond-forming react... | 04/11/2006 |
| 7026266 | Catalytic formulation and its preparation A hetergeneous catalyst includes a solid support having deposited thereon a catalyticaly active material, which is substantially insoluble in organic and aqueous liquid media. The insoluble material is constructed from secondary building blocks derived from suitable... | 04/11/2006 |
| RE38947 | Method of enantioselectively catalyzing a reaction A chiral catalyst is disclosed together with methods of using it for enantioselective syntheses. The chiral catalyst includes a nucleus with two metal atoms that has four bridging ligands oriented radially to the axis of the nucleus. Each of these ligands includes a... | 01/24/2006 |
| 6984604 | Supported bis(phosphorus) ligands and their use in the catalysis Supported bis(phosphorus) ligands are disclosed for use in a variety of catalytic processes, including the isomerization, hydrogenation, hydroformylation, and hydrocyanation of unsaturated organic compounds. Catalysts are formed when the ligands are combined with a ... | 01/10/2006 |
| 6962891 | Solid support dirhodium catalyst compositions and methods for making and using same Disclosed are dirhodium catalyst compositions. One such dirhodium catalyst composition includes a dirhodium catalyst and a solid support. The dirhodium catalyst includes a Rh—Rh moiety and four bridging ligand moieties. The dirhodium catalyst and the solid support... | 11/08/2005 |
| 6946560 | Ligands for metals and improved metal-catalyzed processes based thereon One aspect of the present invention relates to novel ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom and carbon-carbon bond-forming react... | 09/20/2005 |
| 6878665 | Diphosphines, their complexes with transisition metals and their use in asymmetric synthesis The invention relates to novel diphosphines, in optically pure or racemic form, of formula (I): in which: R1 and R2 are a (C5-C7)cycloalkyl... | 04/12/2005 |
| 6878838 | Chiral porous metal phosphonates for heterogeneous asymmetric catalysis Chiral porous zirconium phosphonates containing metal complex moieties are provided, synthesized via a molecular building block approach, and characterized by a variety of techniques including TGA, adsorption isotherms, XRD, SEM, IR, and microanalysis. These hybrid ... | 04/12/2005 |
| 6855657 | Ortho substituted chiral phosphines and phosphinites and their use in asymmetric catalytic reactions 3,3′-Substituted chiral biaryl phosphine and phosphinite ligands and metal complexes based on such chiral ligands useful in asymmetric catalysis are disclosed. The metal complexes are useful as catalysts in asymmetric reactions, such as, hydrogenation, hydride tra... | 02/15/2005 |
| 6841499 | Supported ferrocene-based catalysts for selective aldehyde hydrogenation A supported catalyst comprises a cationic rhodium(I) complex of the formula wherein R1 and R2 are the same or different hydrocarbon groups of up to 30 C atoms, or R1 and R2 a... | 01/11/2005 |
| 6831035 | Stabilization of fluorophosphite-containing catalysts Disclosed are novel catalyst systems comprising (1) a diorgano fluorophosphite ligand; (2) rhodium, wherein the ratio of gram moles fluorophosphite ligand (1) to gram atoms of rhodium is at least 1:1; and (3) a Group VIII metal, other than rhodium, or Group VIII met... | 12/14/2004 |
| 6828271 | Chiral ligands, transition-metal complexes thereof and uses thereof in asymmetric reactions Chiral ligands and transition metal complexes based on such chiral ligands useful in asymmetric catalysis are disclosed. The chiral ligands include phospholanes, P,N ligands, N,N ligands, biphenols, and chelating phosphines. The ferrocene-based irridium (R,R)-f-bina... | 12/07/2004 |
| 6794328 | Diphosphine compound, production intermediate thereof, transition metal complex containing the compound as ligand and asymmetric hydrogenation catalyst containing the complex The present invention provides a novel phosphine compound, specifically to provide a novel phosphine compound useful as a ligand for the above catalysts, in particular, a novel catalyst having an excellent performance (chemical selectivity, enantio-selectivity, cata... | 09/21/2004 |
| 6730629 | Asymmetric phosphine ligand A phosphine compound having excellent properties (chemical selectivity, enantioselectivity, catalytic activity) as a catalyst for asymmetric syntheses, especially asymmetric hydrogenations. A phosphine-phospholane compound represented by the following formula (1): ... | 05/04/2004 |
| 6677268 | Catalyst based on cobalt and/or rhodium employed in a two-phase medium An improved catalyst based on cobalt and/or rhodium dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90° C. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium co-ordinated with at... | 01/13/2004 |
| 6664350 | Supported polymerisation catalyst The invention relates to supported ligands and catalysts for use in the polymerization of olefinically unsaturated monomers such as vinylic monomers, comprising the use of a compound attached to support, the compound being capable of complexing with a tra... | 12/16/2003 |
| 6617279 | Catalyst composition and method for producing diaryl carbonates, using bisphosphines Hydroxyaromatic compounds such as phenol are carbonylated with oxygen and carbon monoxide in the presence of a catalyst system comprising a Group VIIIB metal, preferably palladium; an iodide salt, preferably sodium iodide; and at least one organic bisphos... | 09/09/2003 |
| 6608231 | Double-metal cyanide catalysts for producing polyether polyols The invention relates to novel double metal cyanide (DMC) catalysts for the preparation of polyether polyols by polyaddition of alkylene oxides to starter compounds containing active hydrogen atoms, wherein the catalyst contains a) double metal cyanide co... | 08/19/2003 |
| 6579997 | Metallacrown ether catalysts for hydroformylation A metallacrown ether ligand chelates a transition metal atom to form a catalyst well suited to perform hydroformylation in the presence of carbon monoxide, hydrogen and an unsaturated substrate compound.... | 06/17/2003 |
| 6566297 | Aminonitrile production Provided is a selective hydrogenation process for producing aminonitriles by contacting the corresponding dinitriles with a hydrogen-containing fluid in the presence of a hydrogenation catalyst, a solvent and tetraalkylammonium hydroxide and/or tetraalkyl... | 05/20/2003 |
| 6566298 | Diphosphines The invention relates to the preparation and use as catalysts of diphosphines of the formula (I) ##STR1## in which R is C6 -C14 -aryl or C4 -C13 -heteroaryl containing 1 to 3 heteroatoms selected from the group ... | 05/20/2003 |
| 6555715 | Conversion of light paraffins to oxygenates or olefins using an imide promoter A process has been developed for oxygenating linear C2 to C6 alkanes to ketones or aldehydes. The process involves reacting the alkanes with oxygen in the presence of a catalyst comprising an imide promoter and a metal co-catalyst. A... | 04/29/2003 |
| 6534657 | Chiral ferrocene phosphines and their use in asymmetric catalytic reactions Ferrocene anchored chiral ligands and metal complexes based on such chiral ligands useful in asymmetric catalysis are disclosed. The metal complexes according to the present invention are useful as catalysts in asymmetric reactions, such as, hydrogenation... | 03/18/2003 |
| 6500909 | Transition metal compound, catalyst component for olefin polymerization, catalyst for olefin polymerization, and process for producing olefinic polymer A transition metal compound represented by the general formula (2) or (3) described below, a catalyst component for olefin polymerization comprising said transition metal compound, a catalyst component for olefin polymerization using said transition metal... | 12/31/2002 |
| 6455740 | Process to separate a group 8-10 metal/phosphite ligand complex from an organic liquid Process to separate a group 8-10 metal/phosphite ligand complex from an organic liquid mixture, wherein the following steps are performed (1) contacting the organic liquid with a support having bonded thereto an organophosphine ligand and separating the organi... | 09/24/2002 |
