System for magnetically attaching templeless eyewear to a person
A system of eyewear that eliminates the need for hinges on the frames of the eyewear.
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| Number | Title | Issue Date |
| 8071814 | Process for preparing polyetheramines The invention provides a process for preparing polyetheramines of the formula (1), R2 (NR1R3)n, in which n is a number from 1 to 20, R2 represents an organic radical that contains between 2 and 600 oxalkylene gr... | 12/06/2011 |
| 8063252 | Process for preparing amines and zirconium dioxide- and nickel-containing catalysts for use therein Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consistin... | 11/22/2011 |
| 8017808 | Process for preparing an amine A process for preparing an amine by reacting an aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group of primary and secondary amines in the presence of a heterogeneous catalyst, wherein the catalyst is a coated catalyst which comprise... | 09/13/2011 |
| 7947853 | Process for production of nitrogenated compound The present invention relates to a process for producing an aliphatic primary amine or an aliphatic secondary amine from an aliphatic alcohol with a high catalytic activity and a high selectivity. In the process for producing an aliphatic amine according to the pres... | 05/24/2011 |
| 7919655 | Method for producing an amine Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consistin... | 04/05/2011 |
| 7754922 | Process for preparing amines and zirconium dioxide- and nickel-containing catalysts for use therein Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consistin... | 07/13/2010 |
| 7750189 | Method for producing an amine Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consistin... | 07/06/2010 |
| 7700806 | Method for producing ethylene amines ethanol amines from monoethylene glycol (MEG) A process for preparing ethylene amines and ethanolamines by hydrogenative amination of monoethylene glycol and ammonia in the presence of a catalyst, wherein the process is carried out in two process stages in which in the first p... | 04/20/2010 |
| 7642382 | Processes for preparing ethylamines Processes comprising: (a) providing a first reactant comprising a bioethanol; and (b) reacting the first reactant with a second reactant comprising a component selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in t... | 01/05/2010 |
| 7635790 | Method for producing ethylene amines and ethanol amines by the hydrogenating amination of monoethylene glycol and ammonia in the presence of a catalyst A process for preparing ethylene amines and ethanolamines by hydrogenative amination of monoethylene glycol and ammonia in the presence of a catalyst, wherein a catalyst having an active composition comprising ruthenium and cobalt and no further additional metal of ... | 12/22/2009 |
| 7563933 | Method for producing an ethylamine Process for preparing an ethylamine by reacting ethanol with ammonia, a primary amine or a secondary amine in the presence of hydrogen and a heterogeneous catalyst, in which a biochemically prepared ethanol (bioethanol) in which the concentration of sulfur and/or su... | 07/21/2009 |
| 7442840 | Synthesis of severely sterically hindered amino-ether alcohols and diaminopolyalkenyl ethers using a high activity powder catalyst The present invention relates to a process for preparing severely sterically hindered secondary amine ether alcohols and diamine polyalkenyl ethers by reacting a primary amino compound with a polyalkenylether glycol in the presence of a high activity nickel powder h... | 10/28/2008 |
| 7435855 | Process for the continuous synthesis of methylamines Process for the continuous synthesis of methylamines by reaction of methanol and/or dimethyl ether with ammonia in the presence of a heterogeneous catalyst, wherein the catalyst used is a shaped body which comprises a microporous material and at least one organosili... | 10/14/2008 |
| 7402702 | Process for producing tertiary amine The invention relates to a process for producing a tertiary amine, which includes reacting an alcohol with a primary or secondary amine gas in the presence of a catalyst with an agitating vessel under the stirring conditions where the ratio (Pg/P0 | 07/22/2008 |
| 7351866 | Method for manufacturing tertiary amine The invention provides a method for manufacturing a tertiary amine, including reacting a tertiary amine with an alcohol and a primary or secondary amine in a reactor loaded with a film type catalyst, controlling the superficial velocity of liquid in the reactor at 0... | 04/01/2008 |
| 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 |
| 7227040 | Process for forming branched composition catalytically by carbon-hydrogen bond activation in a saturated moiety A branched composition can be formed by reacting a reagent containing a saturated hydrocarbon moiety in the presence of (a) a catalyst capable of activating a carbon-hydrogen bond therein and (b) a branching reagent having a moiety that binds to the carbon atom in t... | 06/05/2007 |
| 7196033 | Advances in amination catalysis Provided herein are catalysts useful in reductive amination, which include nickel, copper, zirconium and/or chromium, oxygen, and tin. The presence of the tin increases the selectivity of the catalyst in reductive aminations over the catalysts of the prior art. ... | 03/27/2007 |
| 7196035 | Ni hydrogenation catalysts, manufacture and use Improved Ni catalysts for hydrogenation reactions are disclosed. The catalysts are useful for hydrogenation such as selective hydrogenation of acetylenic impurities in crude olefin and diolefin streams. The catalysts are prepared by depositing nickel on a porous sup... | 03/27/2007 |
| 7183438 | Catalysts and method for the production of amines Disclosed are catalysts, the catalytically active mass of which contains 22 to 40 percent by weight of oxygen-containing compounds of zirconium, calculated as ZrO2, 1 to 30 percent by weight of oxygen-containing compounds of copper, calculated as CuO, 15 ... | 02/27/2007 |
| 7161038 | Process for producing polyoxyalkylene triamine The present invention is a process for producing polyoxyalkylene triamine by bringing polyoxyalkylene triol having at its terminal a hydroxyl group into contact with ammonia and hydrogen in the presence of a catalyst comprising ruthenium metal at an amount of 0.5 to... | 01/09/2007 |
| 7122702 | Catalytic hydrogenation of an aliphatically unsaturated group in an organic compound Process for the catalytic hydrogenation of an aliphatically unsaturated group in an organic compound in the presence of a catalyst whose preparation has involved precipitation of catalytically active components onto monoclinic, tetragonal or cubic zirconium dioxide.... | 10/17/2006 |
| 7078475 | Synergistic amine chain-extenders in polyurea spray elastomers Disclosed are derivatives of isophorone diamine exhibiting a synergistic relationship with other commonly employed chain extenders offering enhanced efficacy with regard to slowing of the polyurea elastomer cure profile, and processes employing their use. According ... | 07/18/2006 |
| 7060233 | Process for the simultaneous removal of sulfur and mercury A process for removing hydrogen sulfide, other sulfur-containing compounds and/or sulfur and mercury from a gas stream contaminated with mercury, hydrogen sulfide or both. The method comprises the step of selective oxidation of hydrogen sulfide (H2S) in a... | 06/13/2006 |
| 7053247 | Process for the manufacture of diethylenetriamine and higher polyethylenepolyamines The invention relates to a process for the manufacture of diethylenetriamine and higher polyethylenepolyamines by a transamination of ethylenediamine. The transamination is performed at a temperature from 135° C. to 180° C. at a pressure from 5 Mpa to 40 Mpa in th... | 05/30/2006 |
| 7034186 | Preparation of an amine Process for preparing an amine by reacting a primary or secondary alcohol, aldehyde or ketone with hydrogen and a nitrogen compound selected from the group consisting of ammonia and primary and secondary amines in the presence of a catalyst whose preparation has inv... | 04/25/2006 |
| 7022645 | Ni hydrogenation catalysts, manufacture and use Improved Ni catalysts for hydrogenation reactions are disclosed. The catalysts are useful for hydrogenation such as selective hydrogenation of acetylenic impurities in crude olefin and diolefin streams. The catalysts are prepared by depositing nickel on a porous sup... | 04/04/2006 |
| 7009081 | N-methylated amines from selective vapor phase amination of amino ether alcohols A method for converting amino ether alcohols to amino ether amines by amination in the vapor phase with a catalyst comprising copper and zinc. The catalyst may also comprise an alkali, alkaline earth, or lanthanide element as a promoter. ... | 03/07/2006 |
| 6924395 | Metal modified Pd/Ni catalysts This invention relates to improved catalytic compositions suited for use in hydrogenation processes and to an improved process for hydrogenating organic compounds as in amination of alcohols or hydrogenation of nitrile and nitro groups to the amine using the catalys... | 08/02/2005 |
| 6855776 | Amino-terminated polybutadienes Improved amine-terminated polybutadienes (ATPBs) having one or two terminal groups of the formula —CHRNH2 wherein R is C1-C20 alkyl, are prepared by aminating a secondary hydroxyl-terminated polybutadiene having no ether groups. Th... | 02/15/2005 |
| 6762324 | Metal modified Pd/Ni catalysts This invention relates to improved catalytic compositions suited for use in hydrogenation processes and to an improved process for hydrogenating organic compounds as in amination of alcohols or hydrogenation of nitro groups to the amine using the catalyst. The catal... | 07/13/2004 |
| 6689914 | Preparation of amines The preparation of amines of the formula (I): R1 R2 CH--N R3 R4 (I) in which R1, R2, R3 and R4, independently of one another, are hydrogen, straight-chain or branched C1 | 02/10/2004 |
| 6590124 | Catalysts for producing methylamines and method for manufacturing the same Catalysts useful for producing methylamines and having practical catalyst life and large selectivity for dimethylamine comprise crystalline silicoaluminophosphate molecular sieves which have a molar ratio of silicon atom to aluminum atom in the range of 0... | 07/08/2003 |
| 6525222 | Process for preparing amines Amines are prepared by reacting aldehydes or ketones at elevated temperature under elevated pressure with nitrogen compounds selected from the group of ammonia, primary and secondary amines, and with hydrogen in the presence of a catalyst, wherein the cat... | 02/25/2003 |
| 6376713 | Process for the preparation of amines A single-stage process is described for the preparation of primary aliphatic polyamines of the formula ##STR1## in which R1 and R2 independently of one another are hydrogen, methyl, ethyl or aminomethyl, by reaction of polyalcohols o... | 04/23/2002 |
| 6365778 | Process for the preparation of N-alkypolyhydroxyalkylamines from monoalkylamine and reducing sugar Aqueous, alcoholic or aqueous-alcoholic solutions of a monoalkylamine and a reducing sugar are simultaneously injected into a mixing unit and the two solutions are mixed under turbulence in the mixing unit for 6 seconds to 5 minutes at a temperature of 25... | 04/02/2002 |
| 6294633 | Catalysts for producing methylamines Catalysts for producing methylamines are provided, which comprise mordenite, as the essential component, of spherical fine particles having a crystal diameter of not more than 0.5 μm. When the catalysts are used for the production of dimethylamine from m... | 09/25/2001 |
| 6281387 | Process and catalyst for synthesizing aliphatic, cyclic and aromatic alkanolamines and alkyleneamines The invention provides a process for synthesizing alkanolamines and/or alkyleneamines by reacting either an alkane, an alkene, or both with a source of oxygen and a source of nitrogen and, optionally, additional hydrogen to convert the alkane and/or alken... | 08/28/2001 |
| 6232502 | Method of making methylamines using chabazite catalysts A method for making monomethylamine, dimethylamine and trimethylamine, in which methanol and/or dimethylether and ammonia are contacted in the presence of an acidic zeolite chabazite catalyst is disclosed. The method suppresses the production of trimethyl... | 05/15/2001 |
| 6191310 | Diaminoalkane syntheses via selective amination of dihydric alcohols Disclosed is a process for selectively producing diaminoalkanes which comprises reacting a dihydric alcohol characterized by two to six carbons, preferably 1,3-propanediol, with excess ammonia and sufficient hydrogen to stabilize a nickel or cobalt-contai... | 02/20/2001 |