| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 560127000 | Alicyclic polycarboxylic acid moiety | 14 |
| 20080312465 | INTERMEDIATE COMPOUNDS IN THE SYNTHESIS OF DRONABINOL - Dronabinol, the tetrahydrocannabinol compound which comprises the active constituent of marijuana and is pharmaceutically useful as an antiemetic, is prepared by a process involving reaction of cis-menth-1-ene-3,8-diol with olivetol to form 1,3-dihydroxy-2-[(1R,6R)-6-(2-hydroxyprop-2-yl)-3-methylcyclohex-2-en-1-yl]-5-pentylbenzene; and cyclizing the 1,3-dihydroxy-2-[(1R,6R)-6-(2-hydroxypropr-2-yl)-3-methylcyclohex-2-en-1-yl]-5-pentylbenzene so formed to obtain dronabinol. A novel synthesis of cis-menth-1-ene-3,8-diol is also provided. | 12-18-2008 |
| 20090281349 | Hexahydrophthalate based compound and process for producing the same - A hexahydrophthalate based compound is adapted to use as a plasticizer that contains no phthalic acid and benzoic acid, possess physical properties superior to DEHA and DINA in transparency and adhesion and is friendly to organisms and the environment; and a process for producing the hexahydrophthalate based compound includes esterifying hexahydrophthalic anhydride, a diol, and a catalyst for decarboxylation to get hexahydrophthalic alcohol, and adding a monoacid into the hexahydrophthalic alcohol for further esterification, thereby obtaining the hexahydrophthalate based compound. | 11-12-2009 |
| 20100105944 | Improvements in Oxidative Demetalling - Oxidative recovery methods that use oxygen or air for recovery of homogeneous metal catalysts, such as cobalt catalysts, used in for example hydroformylation processes, can be hazardous. Explosive or flammable gas mixtures may be generated inside the process equipment, which can deflagrate upon any ignition source such as a static electricity discharge. The use of a flammable diluent has been found to be a very effective way of optimizing the recovery method, by bringing the resulting gas mixtures above their upper flammability limit. The offgas produced is then also easier to dispose of as a fuel, as compared to when a non-flammable diluent is used. | 04-29-2010 |
| 20110082311 | Hydrogenation Processes - The present invention is directed to a process for hydrogenating one or more organic compounds especially unsaturated organic compounds by bringing the compound into contact with a hydrogen-containing gas in the presence of a catalyst, which comprises one or more catalytically active metals applied to a porous catalyst support. The one or more catalytically active metals having been derived via a decomposed organic complex of the metal on the support, in particular amine complexes of the metal. The decomposed complex may be treated with hydrogen to activate the catalyst before use as a hydrogenation catalyst. | 04-07-2011 |
| 20110112322 | Hydrogenation of Benzene Polycarboxylic Acids or Derivatives Thereof - A process for hydrogenating benzenepolycarboxylic acids or derivatives thereof, such as esters and/or anhydrides, is provided. | 05-12-2011 |
| 20120226069 | METHOD FOR PREPARING ESTER OF CYCLOHEXANE POLYCARBOXYLIC ACID FROM ESTER OF BENZENE POLYCARBOXYLIC ACID - A method for preparing esters of cyclohexane polycarboxylic acids from esters of benzene polycarboxylic acids makes improvement to hydrogenation of esters of benzene polycarboxylic acids by using a reaction tank having a gas-introducing mixer capable of extracting and exhausting air and stirring to hydrogenate an ester of a benzene polycarboxylic acids into an ester of a cyclohexane polycarboxylic acid in the presence of a hydrogenation catalyst; resulted in that the method advantageously minimizes the operational pressure for hydrogenating esters of benzene polycarboxylic acids and significantly lowers the reaction temperature for hydrogenation while effectively improving the yield of esters of cyclohexane polycarboxylic acids made from the esters of the benzene polycarboxylic acids. | 09-06-2012 |
| 20120296111 | CATALYST AND PROCESS FOR HYDROGENATING AROMATICS - The present invention relates to an eggshell catalyst comprising an active metal selected from the group consisting of ruthenium, rhodium, palladium, platinum and mixtures thereof, applied to a support material comprising silicon dioxide, wherein the pore volume of the support material is 0.6 to 1.0 ml/g, determined by Hg porosimetry, the BET surface area is 280 to 500 m | 11-22-2012 |
| 20130150614 | PROCESS FOR HYDROGENATION OF POLYCARBOXYLIC ACIDS OR DERIVATIVES THEROF - The disclosure provides a process for hydrogenation of polycarboxylic acids or derivatives thereof, including: hydrogenation of polycarboxylic acids or derivatives thereof in the presence of a catalyst, wherein the catalyst includes an active metal and a support, the support includes a Group IIA element and a Group IIIA element, and the active metal includes a Group VIIIB element. | 06-13-2013 |
| 20130338393 | METHOD FOR PRODUCING ALICYCLIC CARBOXYLIC ACID AND CATALYST USED IN SAME - Provided is a method for producing an alicyclic carboxylic acid by hydrogenating an aromatic ring of an aromatic carboxylic acid, which comprises using a catalyst containing ruthenium and palladium as a catalyst, and also provided is a co-supported ruthenium-palladium catalyst in which ruthenium and palladium are present in a form of particles containing both the ruthenium and palladium on a surface of a support. A catalyst has been developed which uses a relatively inexpensive noble metal, ruthenium, which has an activity equivalent to that of a rhodium catalyst, and which does not undergo decrease in activity as observed in a rhodium catalyst, and thereby an industrially simple method for producing an alicyclic carboxylic acid has been established. | 12-19-2013 |
| 20140148613 | Process for Liquid Phase Hydrogenation of Phthalates - Disclosed is a process for the liquid phase hydrogenation of phthalates to cyclohexanoates. By using a reactor with a multiplicity of tubes, with a cooling fluid supplied to the outside of the tubes, shortcomings of traditional recycle mode fixed bed reactors can be overcome. Feed dilution can be avoided, resulting in much higher reaction rates. | 05-29-2014 |
| 20160193591 | Hydrogenation Catalyst, Its Method of Preparation and Use | 07-07-2016 |
| 20160193592 | A Hydrogenation Catalyst, Its Method of Preparation and Use | 07-07-2016 |
| 20160199814 | A Hydrogenation Catalyst, Its Method of Preparation and Use | 07-14-2016 |
| 20190144371 | METHOD OF PRODUCING COMPOUND, COMPOUND, AND MIXTURE | 05-16-2019 |
