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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7364668 | Process for producing an amino composition The present invention provides a process for producing an amino composition by addition reaction between a polyamine and an unsaturated hydrocarbon compound in the presence of a strongly basic alkali metal catalyst to obtain an amino composition containing not more ... | 04/29/2008 |
| 7091155 | Catalyst for ester production and process for producing ester A catalyst for ester production which comprises zirconium oxide, copper, and at least one oxide selected from the group consisting of zinc oxide, chromium oxide, aluminum oxide and silicon oxide, and is obtainable by reducing with hydrogen a catalyst precursor prepa... | 08/15/2006 |
| 6911413 | Nano-gold catalyst and process for preparing the same The present invention discloses a nano-gold catalyst including a solid carrier and gold deposited on the carrier, wherein the deposited gold has a size less than 10 nm, and the carrier is a mixed metal hydroxide and oxide having the following formula: M(OH... | 06/28/2005 |
| 6809217 | Process for the preparation of ethyl acetate Ethanol is dehydrogenated in the presence of hydrogen over a dehydrogenation catalyst, for example, a copper on silica catalyst. The liquefiable products present in the resulting intermediate reaction product mixture are selectively hydrogenated over a suitable cata... | 10/26/2004 |
| 6767923 | Benzhydryl derivatives Benzhydryl derivatives of the formula I, where the index and the variables are as defined below: X is oxygen or sulfur; R1, R3 are halogen, cyano, nitro, hydroxyl, mercapto, amino, alk... | 07/27/2004 |
| 6696594 | Process for the conversion of aldehydes to esters A process for the conversion of aldehydes to esters, specifically acrolein or methacrolein to methyl acrylate or methyl methacrylate, respectively. Essentially in the absence of water, an aldehyde is contacted with an oxidizing agent to form an intermedia... | 02/24/2004 |
| 6632959 | Basic catalysts and process for producing carbonyl compound derivatives A base catalyst, obtained by formulating at least one alkali metal compound selected from the group consisting of alkoxides, hydroxides and oxides of alkali metals and an alkaline-earth metal oxide in a ratio of "the weight of alkaline metal compound/the ... | 10/14/2003 |
| 6362344 | Catalysts for asymmetric addition of organozinc regents to aldehydes and method for preparation Chiral aminoalcohol catalysts and methods for their preparation are provided. The first catalyst is prepared via selective hydrogenation of one of two benzene rings in a precursor. The aminoalcohol promotes the asymmetric addition of organozinc reagents t... | 03/26/2002 |
| 6316663 | Catalyst ligands, catalytic metal complexes and processes using and methods of making the same A new ligands that include a benzene ring in the backbone can be combined with a metal or metal precursor compound or formed into a metal-ligand complex catalyze a number of different chemical transformations, including olefin polymerization reactions. Th... | 11/13/2001 |
| 6248920 | Preparation process for esters and resist materials Process for the quantitative preparation of esters, with a high yield, which comprises reacting an aldehyde or ketone compound and an acid halide compound in a one pot reaction in the presence of at least one compound represented by the following formulae... | 06/19/2001 |
| 6215020 | Basic clay catalyst for the production of pentylglycol monoesters The invention is a base-modified clay that selectively catalyzes the formation of a glycol monoester from an aldehyde. The base-modified clay comprises a clay having secluded conjugate base sites and exchangeable interstitial cationic spaces. In the base-... | 04/10/2001 |
| 6111135 | Manufacture of 1,3-propanediol esters from formaldehyde and ethylene using a modified prins reaction Disclosed is a process for manufacturing an ester of 1,3-propanediol, comprising, contacting at a temperature of about 0° C. to about 250° C., ethylene, formaldehyde or a form of formaldehyde, a carboxylic acid, and a compound of the formula MZn.Q.... | 08/29/2000 |
| 6072077 | 5-Z-octenyl esters, process for their preparation and their use 5-Z-octenyl esters of the formula ##STR1## in which R represents hydrogen, methyl or ethyl, have an intensive mango aroma, so that the compounds I can be added to fruit compositions and aroma compositions; they have flavor-intensifying and flavor-rou... | 06/06/2000 |
| 6040472 | Catalyst for use in producing carboxylic esters Disclosed is a novel catalyst for use in producing a carboxylic ester from an aldehyde, an alcohol and molecular oxygen, which comprises a carrier having supported thereon Pd and Pb in a Pd/Pb atomic ratio (S) of 3/0.7ࣘSࣘ3/1.3, and which exhibits a ma... | 03/21/2000 |
| 6018075 | Process for the manufacture of a γ -acetoxy-tiglic aldehyde A process for the manufacture of a γ-acetoxy-tiglic aldehyde by reacting a γ-bromotiglic aldehyde or a γ-chlorotiglic aldehyde with sodium acetate or potassium acetate in an organic solvent in the presence of a phase transfer catalyst.... | 01/25/2000 |
| 6018074 | Process for the preparation of polyalcohols A process for the preparation of polyalcohols comprises the stages: (a) Reaction of an alkanal or ketone with formaldehyde in aqueous solution in the presence of a tertiary amine, to form a formates containing polyalcohol product mixture, (b) removal of water,... | 01/25/2000 |
| 5892102 | Catalyst used in production of carboxylic acid esters and process for producing these esters A catalyst for the production of carboxylic acid esters for use in reacting an aldehyde with an alcohol in a liquid phase in the presence of molecular oxygen, comprising calcium carbonate and palladium, bismuth and at least one element selected from the g... | 04/06/1999 |
| 5821384 | Process for generating vinyl carboxylate esters Disclosed is a process for making vinyl carboxylate esters such as vinyl acetate and vinyl propionate, by a reactive distillation process comprising a reaction zone wherein a vinyl carboxylate ester is formed from a carbonyl compound selected from aliphat... | 10/13/1998 |
| 5770762 | Process for producing 4-substituted-2-butenals Described is a process for producing a 4-substituted-2-butenal represented by the following formula (1); ##STR1## (wherein X represents an acyloxy group or halogen atom; R represents hydrogen atom, an aliphatic hydrocarbon group or an aromatic hydroc... | 06/23/1998 |
| 5744637 | Carboxylic acid accelerated formation of diesters This invention pertains to accelerating the rate of formation of 1,1-dicarboxylic esters from the reaction of an aldehyde with a carboxylic acid anhydride or a ketene in the presence of a non-iodide containing a strong Bronsted acid catalyst by the additi... | 04/28/1998 |
| 5731456 | Preparation of vinyl acetate This invention pertains to the preparation of vinyl acetate by contacting a mixture of hydrogen and ketene with a heterogeneous catalyst containing a transition metal to produce acetaldehyde, which is then reacted with ketene in the presence of an acid ca... | 03/24/1998 |
| 5726345 | Process for perfuming textiles We describe a process for perfuming fabrics washed in the presence of a lipase-containing detergent and, optionally, subsequently treated with a fabric softener, said process being characterized in that said detergent and/or said fabric softener contains ... | 03/10/1998 |
| 5719315 | Process for the preparation of vinyl acetate This invention pertains to the preparation of vinyl acetate by contacting within a contact zone a mixture of ketene and acetaldehyde with an acid catalyst at about one bar pressure and between about 85° and 200° C. and removing the reaction products fro... | 02/17/1998 |
| 5414110 | Ru-Sn hetero-polynuclear complex and process for producing acetic acid or methyl acetate by using the same The present invention relates to (1) a Ru-Sn hetero-polynuclear complex as a novel catalyst which has a high catalytic activity and is useful for producing acetic acid and/or methyl acetate from methanol, and (2) a process for producing acetic acid and/or meth... | 05/09/1995 |
| 5227517 | Process for preparing ethylidene diacetate using iodide catalysts The present invention relates to a process for producing ethylidene diacetate (EDDA) wherein at least one process step comprises condensing a feedstock of acetaldehyde and acetic anhydride in the presence of acetic acid and an iodide catalyst selected fro... | 07/13/1993 |
| 5180847 | Processes for preparing 2,2,4-trimethyl-1,3-pentanediol derivatives A preferred process for producing 3-hydroxy-2,2,4-trimethylpentyl isobutyrate is described. The spent aqueous phase from an alkali metal hydroxide-catalyzed isobutyraldehyde condensation is concentrated in alkali metal isobutyrate salt, and the concentrat... | 01/19/1993 |
| 5166413 | Process for preparation of branched 1,3-glycols and their monoesters The present invention relates to a process for the preparation of diols of the general formula (I) ##STR1## and monoesters thereof of the general formula (II) ##STR2## and the general formula (III) ##STR3## wherein R1 and R | 11/24/1992 |
| 5089659 | Preparation of E7/Z9-alkadien-1-ols and their derivatives protected at the hydroxyl group E7/Z9 -alkadien-1-ols which may be protected at the hydroxy group are prepared by subjecting a 7-hydroxyheptenal to a Wittig reaction with a phosphorylide to give an acetal compound which is converted by further Wittig reaction with a phosphorylide to an ... | 02/18/1992 |
| 4883906 | Production of trisubstituted hydroxyalkyl alkanoates from aldehydes A process for producing and refining trisubstituted glycol monoesters, e.g., 2,2,4-trimethyl-1,3-pentanediol monoester. The improvement resides in immediately distilling the crude condensation product mixture as it leaves the reactor before it has cooled ... | 11/28/1989 |
| 4877898 | Process for one step esterification using an intermetallic palladium based catalyst system A process for the one step esterification of aldehydes and alcohols comprises the steps of combining an aldehyde with an alcohol, in the presence of oxygen and in contact with a catalyst having the general formula PdTea Znd Ee | 10/31/1989 |
| 4873362 | Preparation of 2-substituted 4-acyloxy-2-butenals 2-Substituted 4-acyloxy-2-butenals of the general formula I ##STR1## where R1 is alkyl of 1 to 12 carbon atoms which may be substituted by cycloalphatic, aromatic or heterocyclic radicals, by alkenyl or alkynyl or by hydroxyl, ether, thioe... | 10/10/1989 |
| 4843170 | Process for producing vinyl acetate A process is disclosed for producing vinyl acetate from methanol, carbon monoxide and hydrogen which comprises the following five steps: (a) methanol is hydrocarbonylated in a hydrocarbonylation zone to produce ethanol, acetaldehyde, methyl acetate and dimethy... | 06/27/1989 |
| 4841097 | Dialkanoyloxybenzylidene dialkanoate Disclosed herein are dialkanoyloxybenzylidene dialkanoate represented by the formula ##STR1## wherein X1 and X2 represent respectively alkanoyloxy group and a pharmaceutical composition in dosage unit form which comprises a dosa... | 06/20/1989 |
| 4751307 | Wittig-reaction processes Disclosed are improved Wittig reaction processes wherein the Wittig reaction is conducted in an anisole containing solvent.... | 06/14/1988 |
| 4723036 | Process for producing propylene glycol monoacetate There is provided a process for producing propylene glycol monoacetate which comprises the steps of (I) hydroformylating vinyl acetate with a gaseous mixture of hydrogen and carbon monoxide in an organic solvent in the presence of a substantially water-in... | 02/02/1988 |
| 4618704 | Acyloxy-2-butenes and their preparation Acyloxy-2-butenes of the formula ##STR1## where R1, R3 and R4 are each hydrogen or alkyl of 1 to 5 carbon atoms, R2 is alkyl of 1 to 5 carbon atoms, R5 is hydrogen, alkyl of 1 to 5 carbon atoms o... | 10/21/1986 |
| 4593115 | Method for producing 1-iodoalkyl acylates An 1-Iodoalkyl acylate, which is useful as the raw material for esterification of cephalosporins, penicillins, etc. is prepared in a high degree of purity and in high yield by (1) allowing a carboxylic acid iodide to react with an aldehyde, or (2) allowin... | 06/03/1986 |
| 4568782 | Preparation of indenes Disclosed is the vapor phase cyclodehydration of an aldehyde or ketone over a solid Lewis acid as catalyst to make indene or a substituted indene according to the equation: ##STR1##... | 02/04/1986 |
| 4546200 | 2,2-Dinitrobutane-1,4-diol and monoesters 2,2-Dinitrobutane-1,4-diol and 4-monoesters thereof.... | 10/08/1985 |
| 4520125 | Catalyst for the preparation of methyl methacrylate Catalysts for the preparation of carboxylates from an aldehyde and an alkanol in the presence of oxygen, which contain palladium and lead as active components, these being present on a carrier containing zinc oxide, and the palladium being applied as a pa... | 05/28/1985 |
