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| Number | Title | Issue Date |
| 7420071 | Thermally stable surfactants and compositions and methods of use thereof There are provided novel thermally stable surfactants for use with fillers in the preparation of polymer composites and nanocomposites. Typically, surfactants of the invention are urethanes, ureas or esters of thiocarbamic acid having a hydrocarbyl group of from 10 ... | 09/02/2008 |
| 7005537 | Production of esters Disclosed is a process for the production of esters. In particular, the process includes contacting an olefin or an ether with carbon monoxide and an acid composition comprising BF3.2CH3OH to from a product composition, adding an alcohol to the... | 02/28/2006 |
| 5463095 | Process for the production of esters A process for the production of esters, comprising allowing an olefin, carbon monoxide and an alcohol to react in the presence of hydrogen fluoride, in which the esters can be produced at high yields at a low temperature for a short period of time, the es... | 10/31/1995 |
| 5133903 | Process for the preparation of ω-enecarboxylic acid esters Hydrocarboxyalkylation of ,ω-dienes with carbon monoxide and an alcohol in the presence of a cobalt compound and a tertiary amine gives ω-enecarboxylic acid esters with high selectivity and in good yields.... | 07/28/1992 |
| 5124082 | Method for preparation of , ଲ-unsaturated carboxylic acid containing fluorine A method for preparing , ଲ-unsaturated carboxylic acids of the formula R1 (R2)C.dbd.C(R3)CO2 H where R1 to R3 can be hydrogen, fluorine, alkyl, or alkyl containing fluorine, but at ... | 06/23/1992 |
| 5047583 | Production of carboxylic acids A carboxylic acid of formula RCO2 H, for example acetic acid, is prepared from a formate ester of formula HCO2 R, for example methyl formate, by heating the ester at elevated temperature with an iridium catalyst, a halide promoter an... | 09/10/1991 |
| 5041642 | Preparation of ଲ, γ-unsaturated carboxylic acids ଲ,γ-Unsaturated carboxylic acids are facilely prepared by carbonylating a conjugated diene with carbon monoxide in the presence of (i) water, (ii) a halogenated hydracid, (iii) a palladium catalyst comprising palladium metal or supported palladium ... | 08/20/1991 |
| 5004568 | Carbonylation of allylic ethers to esters A method is disclosed for the production of esters by reaction of an allylic ether with carbon monoxide in the presence of a catalytically effective amount of a Group VIII noble metal catalyst and a Group IB metal halide to obtain esters. The Group IB met... | 04/02/1991 |
| 5004567 | Process for producing fluorine-containing aliphatic carboxylic acids Process for producing fluorine-containing aliphatic carboxylic acids having the general formula of Y--Rf --Y' as defined herein by reaction of fluorine-containing aliphatic halogen compounds having the general formula of X--R4 --X' a... | 04/02/1991 |
| 4997978 | Preparation of alkyl carboxylates by hydrocarbonylation Alkyl carboxylates of the formula: R--CO--O--CH2 R' are prepared by hydrocarbonylating a compound of the formula: R--CO--O--R' in the simultaneous presence, in the reaction medium, of cobalt, ruthenium, an alkyl iodide and an ionic iodide, the atomic rat... | 03/05/1991 |
| 4994608 | Addition of hydrogen to carbon monoxide feed gas in producing acetic acid by carbonylation of methanol The carbonylation of an alcohol to produce a carboxylic acid, especially methanol to produce acetic acid, in a low water reaction medium containing a rhodium catalyst stabilized with an iodide salt, especially lithium iodide, along with alkyl iodide such ... | 02/19/1991 |
| 4981619 | Process for preparing alpha-hydroxy acids A process for preparing alpha-hydroxycarboxylic acids. An organic halide is reacted with carbon monoxide and a hydrogen donor compound, in the presence of a carbonylation catalyst and an inorganic base, at a temperature of at least 90° C.... | 01/01/1991 |
| 4980503 | Conversion of glycol formates to monocarboxylic acids It has been surprisingly discovered in accordance with the present invention that glycol formates and their alkyl ether derivatives can be substantially selectively converted to monocarboxylic acids by bringing a glycol formate or an alkyl ether derivativ... | 12/25/1990 |
| 4945179 | Process for the preparation of esters of carboxylic acids and catalytic system for use therein Process for the preparation of esters of carboxylic acids by contacting an olefinically unsaturated compound with CO and an alcohol, in the presence of (a) a ruthenium compound and (b) an iodide salt, LiBr and/or an onium bromide, with a molar ratio of CO... | 07/31/1990 |
| 4902659 | Preparation of improved nickel-containing catalyst and process for conversion of alcohols to carboxylic acids therewith The present invention provides a process for the preparation of an improved nickel-containing catalyst suitable for the conversion of alcohols to the corresponding carboxylic acid which involves combining a nickel compound, an N-containing organic compoun... | 02/20/1990 |
| 4897473 | Homologation of carbonyloxy containing compounds This invention produces higher homologs, i.e., differing by at least a --CH2 -unit, of carbonyloxy-containing compounds by treating the carbonyloxy-containing compounds with carbon monoxide and hydrogen in the presence of a ruthenium-containing... | 01/30/1990 |
| 4894188 | Process for producing fatty acids and their ester derivatives Fatty acid and their derivatives are simply produced by reacting an olefin, carbon monoxide and water or reacting an alcohol or its derivative and carbon monoxide in the presence of a hydrogen fluoride catalyst and thermally decomposing the resulting reac... | 01/16/1990 |
| 4788334 | Acid accelerated hydrocarboxylation A process for the production of carboxylic acids by the hydrocarboxylation of olefinically unsaturated alkenes or esters using a rhodium catalyst, an iodide promoter, a solvent selected from the class consisting of methylene chloride, 1,2-dichloroethane, ... | 11/29/1988 |
| 4767574 | Carbonylation of allylic ethers to esters A method is disclosed for the production of esters by reaction of an allylic ether with carbon monoxide in the presence of a catalytically effective amount of a Group VIII noble metal catalyst and a halide compound to obtain esters. The halide compound is... | 08/30/1988 |
| 4743401 | Conversion of an allylic ether to its corresponding acetal A process for converting an allylic ether to its corresponding acetal is disclosed. In this process an allylic ether is contacted with an organic hydroxy compound and a catalytically effective amount of a cobalt compound to produce the corresponding aceta... | 05/10/1988 |
| 4733006 | Carbonylation process with an alkali metal acetate as catalyst stabilizer The present invention provides for an improved process wherein an olefin, an alcohol, or an ester, halide or ether derivative of said alcohol is reacted with carbon monoxide in a liquid phase in the presence of a catalyst system that contains (a) a rhodiu... | 03/22/1988 |
| 4664851 | Process for the co-production of carboxylic acids and carboxylic acid esters Process for the co-production of carboxylic acids of the general formula R1 --COOH and R2 --COOH and carboxylic acid esters of the general formula R1 --COOCH2 R2 and R2 --COOCH2 ... | 05/12/1987 |
| 4665213 | Process for the production of esters Carboxylic acid esters are produced by reacting an olefinic hydrocarbon with an ester of formic acid in the presence of both carbon monoxide and oxygen at a temperature of up to 200° and a pressure of up to 300 bar in the presence of water, typically in ... | 05/12/1987 |
| 4661296 | HF separation in a carbonylation process In the preparation of a carboxylic acid by the carbonylation of an olefin in the presence of hydrofluoric acid catalyst, the hydrofluoric acid is isolated from the carboxylic acid by means of an ion-permeable membrane and the thus-isolated hydrofluoric ac... | 04/28/1987 |
| 4659518 | Preparation of carboxylic acids A carboxylic acid, such as acetic acid, is prepared by carbonylation of a hydrocarbyl alcohol, such as methanol, by the use of a molybdenum-nickel or tungsten-nickel co-catalyst in the presence of a promoter comprising an organo-phosphorus compound or an ... | 04/21/1987 |
| 4647691 | Process for preparing ethyl and n-propyl esters of carboxylic acids from methanol, syngas and carboxylic acid using a new catalyst system Ethyl and n-propyl esters of carboxylic acids are prepared in good yield from methanol, syngas and a carboxylic acid by contacting a mixture of the carboxylic acid, carbon monoxide, hydrogen and methanol with a catalyst composition comprising a ruthenium-... | 03/03/1987 |
| 4625055 | Preparation of carboxylic acids A carboxylic acid, such as propionic acid, is prepared by carbonylation of an olefin, such as ethylene in the presence of water by the use of a molybdenum-nickel-alkali metal, tungsten-nickel alkali metal, or chromium-nickel-alkali metal co-catalyst in th... | 11/25/1986 |
| 4622416 | Carbonylation of allylic ethers to esters A method is disclosed for the production of esters by reaction of an alkyl acyclic allylic ether such as 8-methoxy-1,6-octadiene with carbon monoxide in the presence of a halide of nickel, cobalt or iron as a catalyst and especially nickel iodide for the ... | 11/11/1986 |
| 4620033 | Process for producing carboxylic acids A process for producing a carboxylic acid which comprises reacting a hydrocarbyl alcohol with carbon monoxide in the presence of a metal catalyst selected from nickel or cobalt, a halide and a specific promoter is disclosed. According to the present inven... | 10/28/1986 |
| 4613693 | Process for the co-production of a C2 to C10 monocarboxylic acid and formic acid C2 to C10 monocarboxylic acids are co-produced with formic acid by reacting at an elevated temperature below 250° C. a C1 to C9 alkyl formate with carbon monoxide and water in the presence as catalyst of a Grou... | 09/23/1986 |
| 4558153 | Preparation of carboxylic acids and esters Carboxylic acids having two or more carbon atoms than formic acid, or esters of such carboxylic acids are prepared by reacting either formic acid or an ester of formic acid with an olefin at elevated temperature in the presence of a Group VIB metal cataly... | 12/10/1985 |
| 4540810 | Manufacture of alkanol and glycol esters This invention concerns the improved preparation of alkanol and glycol esters, such as ethylene glycol diesters, by reaction of carbon monoxide and hydrogen in the presence of a catalyst system comprising ruthenium and a quaternary aryl or alkaryl phospho... | 09/10/1985 |
| 4540811 | Preparation of carboxylic acid esters A carboxylic acid esters, such as methyl propionate, is prepared by carbonylation of an olefin, such as ethylene, in the presence of an alcohol by the use of a molybdenum-nickel-alkali metal, a tungsten-nickel-alkali metal or a chromium nickel-alkali meta... | 09/10/1985 |
| 4536340 | Process for the preparation of alkyl nonadienoate esters A mixture of 1,3-butadiene, carbon monoxide and a monoalkanol of the general formula ROH in which R is a straight or branched chain alkyl group of from 1 to about 12 carbon atoms is reacted in the presence of catalyst to provide alkyl nonadienoate ester a... | 08/20/1985 |
| 4514336 | Homologous carboxylic acids production A process for homologating alcohols and/or acids to a mixture of higher acids by reaction with syngas in the presence of a ruthenium-rhodium-iodide-titanium(IV) catalyst.... | 04/30/1985 |
| 4482497 | Preparation of carboxylic acids A carboxylic acid, such as acetic acid, is prepared by carbonylation of a hydrocarbyl alcohol, such as methanol by the use of a molybdenum-nickel-alkali metal or a tungsten-nickel-alkali metal co-catalyst in the presence of an iodide or bromide.... | 11/13/1984 |
| 4480115 | Direct hydrogenation of carboxylic acids to alcohol and esters This invention provides an improved process for direct hydrogenation of a carboxylic acid to its corresponding alcohol with synthesis gas in the presence of a homogeneous catalyst comprising a ruthenium compound and a Lewis Acid metal halide.... | 10/30/1984 |
| 4476106 | Process for the extemporaneous preparation of an injectable fatty acid tagged in the omega position by means of radioactive iodine A process for the preparation of a fatty acid tagged with radioactive iodine, wherein a brominated or iodized fatty acid is reacted, preferably in the omega position, with radioactive iodide in the dry state or with an aqueous solution of radioactive iodi... | 10/09/1984 |
| 4450285 | Preparation of esters ଲ,γ-Unsaturated esters are prepared by the reaction of the corresponding ଲ,γ-unsaturated carbonate with carbon monoxide in the presence of a group VIII metal catalyst.... | 05/22/1984 |
| 4435575 | Process for preparing carboxylated organic compounds A process is herein described for preparing carboxylated organic compounds (acids, esters, alkaline salts) of formula ##STR1## wherein R is a hydrocarbyl group having up to 11 carbon atoms (an aliphatic, alicyclic, aryl- or heteroarylalkyl group), al... | 03/06/1984 |
