Class / Patent application number | Description | Number of patent applications / Date published |
525338000 | Chemical treating agent contains elemental hydrogen or an elemental hydrogen-liberating compound, e.g., hydrogenation, etc. | 27 |
20080262161 | Apparatus for hydrogenation and method for hydrogenating conjugated diene polymer by employing the apparatus - The present invention provides an apparatus and a method for continuous hydrogenation of conjugated diene polymer. By feeding the conjugated diene polymer, a catalyst composition and a hydrogen to the apparatus for hydrogenation. This apparatus for hydrogenation includes at least one hydrogenation reaction unit each comprising at least one a hydrogenation reactor with an outlet and at least one heat exchanger. In the hydrogenation reaction unit, the conjugated diene polymer, the catalyst composition and the hydrogen are mixed in a non-mechanical mixing mode and proceed hydrogenation with heat exchanger being connected to the outlet of the hydrogenation reactor. | 10-23-2008 |
20090054597 | Metathesis of Nitrile Rubbers In the Presence of Transition Metal Complex Catalysts - A novel process for the metathetic degradation of nitrile rubbers is provided which uses specific transition metal complex catalysts showing an increased activity. | 02-26-2009 |
20090062475 | Production of elastomeric functionalized olefin polymers - In a process for producing a functionalized polyalkenamer, at least one monomer comprising a monocyclic olefin having at least one pendant alkyl group bonded thereto, wherein the pendant alkyl group has at least two carbon atoms and is substituted with a polar moiety spaced by at least one carbon atom from the monocyclic olefin, is contacted with a polymerization catalyst under conditions effective to effect ring opening polymerization of the monocyclic olefin and produce the functionalized polyalkenamer. | 03-05-2009 |
20090258996 | HYDROGENATION OF DIENE-BASED POLYMER LATEX - The present invention relates to a process for the selective hydrogenation of the carbon-carbon double bonds in a diene-based polymer latex using a water-soluble catalyst and simultaneously a water-insoluble co-catalyst. | 10-15-2009 |
20090270562 | HYDROGENATION OF DIENE-BASED POLYMERS - The present invention relates to a process for the selective hydrogenation of the carbon-carbon double bonds in diene-based polymers in bulk form by treatment of the polymer with hydrogen in the presence of a platinum group metal containing catalyst and in the absence of any organic solvent. | 10-29-2009 |
20090270563 | HYDROGENATION OF DIENE-BASED POLYMERS - The present invention relates to a process for the hydrogenation of the carbon-carbon double bonds in diene-based polymers in bulk form by treatment of said diene-based polymer with hydrogen in the presence of an iridium containing catalyst and in the absence of any organic solvent. | 10-29-2009 |
20100204408 | Synthesis of Radioactive Materials and Compositions of Same - The present invention relates generally to synthesis of radioactive material, such as a tritiated polymer, and an apparatus for generating electrical current from the nuclear decay process of a radioactive material. In one embodiment, the invention relates to an energy cell (e.g. a battery) for generating electrical current derived from particle emissions occurring within a radioactive material such as a tritiated polymer) on pore walls of a porous semiconductor. The radioactive material may be introduced into the energy cell by a wetting process. | 08-12-2010 |
20100227979 | PROCESS FOR HYDROGENATING POLYMERS AND HYDROGENATION CATALYSTS SUITABLE THEREFOR - A process for hydrogenating polymers which have C—C double bonds or C—N multiple bonds using a hydrogenation catalyst which comprises a megaporous substrate and a metal or precursor thereof which catalyzes the hydrogenation and has been deposited onto carbon nanofibers. | 09-09-2010 |
20100324226 | HIGHLY SATURATED NITRILE RUBBER FOR SEAL MATERIAL AND CROSS-LINKED RUBBER - A highly saturated nitrile rubber for a seal material used for sealing a solution containing an alcohol, the highly saturated nitrile rubber for a seal material having an iodine value of 80 or less and a content of a surfactant of 0.4 wt % or less. According to the present invention, it is possible to effectively prevent leaching of a contained ingredient by a water soluble ink, a fuel oil containing alcohol, or another solution containing an alcohol and possible to give cross-linked rubber superior in heat aging resistance. | 12-23-2010 |
20110105694 | HYDROGENATION CATALYST COMPOSITION AND HYDROGENATION METHOD THEREOF - A hydrogenation catalyst composition for hydrogenating a polymer of conjugated diene is provided. The polymer of conjugated diene is a homopolymer of conjugated diene or a copolymer of conjugated diene and vinyl aromatics. The hydrogenation catalyst composition includes: (a) a titanium compound, (b) a compound of formula (II), | 05-05-2011 |
20110118420 | Process for Making Dendritic Hydrocarbon Polymers - A process for making a substantially saturated dendritic hydrocarbon polymer. The process has the following steps: (a) polymerizing an amount of one or more alkadiene monomers and/or one or more alkenylaromatic polymers under anionic conditions in the presence of a di- or tri-functional organic lithium initiator to produce a polyalkadiene defining a multiplicity of lithiated chain ends; (b) reacting the polyalkadiene with an amount of a tri- or di-functional silane coupling agent to form a dendritic polyalkadiene; and (c) hydrogenating the dendritic polyalkadiene to form a substantially saturated dendritic hydrocarbon polymer. Also a process for process for making a dendritic hydrocarbon polymer, comprising: (a) polymerizing an amount of one or more alkadiene monomers and/or one or more alkenylaromatic polymers under anionic conditions in the presence of a di- or tri-functional organic lithium initiator to produce a hydrocarbon polymer defining a multiplicity of lithiated chain ends; and (b) reacting the hydrocarbon polymer with an amount of a tri- or di-functional silane coupling agent to form a dendritic hydrocarbon polymer. | 05-19-2011 |
20120329954 | PROCESS FOR THE PREPARATION OF HYDROGENATED NITRILE RUBBER - The present invention relates to a process for the production of hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art, wherein the process is carried out in the presence of hydrogen and optionally at least one co-olefin. The present invention further relates to the use of specific metal compounds in a process for the production of a hydrogenated nitrile rubber by simultaneous hydrogenation and metathesis of a nitrile rubber. | 12-27-2012 |
20130005916 | PROCESS FOR THE PREPARATION OF LOW MOLECULAR WEIGHT HYDROGENATED NITRILE RUBBER - Pursuant to the invention a process for the production of hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art in the is provided wherein the process is carried out in the presence of hydrogen and optionally at least one co-(olefin). The present invention further relates to the use of specific metal compounds in a process for the production of a hydrogenated nitrile rubber by simultaneous hydrogenation and metathesis of a nitrile rubber. | 01-03-2013 |
20130109813 | SYNTHESIS OF CONJUGATED POLYMERS VIA OXIDATIVE POLYMERIZATION AND RELATED COMPOSITIONS | 05-02-2013 |
20130109814 | METHOD FOR PRODUCING PETROLEUM RESIN | 05-02-2013 |
20140121329 | Method for Producing Hydrogenated Conjugated Diene Copolymer - The present invention relates to a method for producing a hydrogenated conjugated diene copolymer including a polymerization step and a hydrogenation step, wherein in the polymerization step, a conjugated diene copolymer having a high vinyl bond amount of a conjugated diene block moiety and a narrow molecular weight distribution can be produced, and in the hydrogenation step, the rate of hydrogenation is high and productivity is excellent. | 05-01-2014 |
20140323665 | Polyalphaolefins by Oligomerization and Isomerization - A feedstock of one or more C | 10-30-2014 |
20150025199 | CATALYST COMPOSITIONS AND THEIR USE FOR HYDROGENATION OF NITRILE RUBBER - This invention relates to novel catalyst compositions based on Ruthenium- or Osmium-based complex catalysts of the Grubbs-Hoveyda, Grela or Zhan type and specific co-catalysts comprising at least one vinyl group, pref. ethyl vinyl ether, and to a process for selectively hydrogenating nitrile rubbers in the presence of such catalyst compositions, preferably with a preceding metathesis step using the same complex catalyst as in the hydrogenation step. | 01-22-2015 |
20150051353 | METHOD FOR PRODUCING RING-OPENING METATHESIS POLYMER HYDRIDE, AND RESIN COMPOSITION - A method for producing a hydrogenated ring-opening metathesis polymer includes subjecting a cyclic olefin to ring-opening metathesis polymerization in the presence of a polymerization catalyst to produce a ring-opening metathesis polymer, and hydrogenating at least some of carbon-carbon double bonds of the ring-opening metathesis polymer, at least one ruthenium compound selected from a group made of a ruthenium compound represented by a formula (I), (II), (III), and (IV) being used as the polymerization catalyst; and a resin composition having a hydrogenated ring-opening metathesis polymer produced by this method. It is possible to industrially advantageously produce a hydrogenated ring-opening metathesis polymer that exhibits especially excellent light transmittance. | 02-19-2015 |
20150126683 | CATALYST COMPOSITIONS AND THEIR USE FOR HYDROGENATION OF NITRILE RUBBER - This invention relates to novel catalyst compositions based on ruthenium or osmium carbene-complex catalysts, pref. of the Grubbs-I, -II or -III type or fluorenylidene analogues thereof, and terminal olefins, pref. enol ethers such as ethyl vinyl ether (EVE or VEE) as co-catalysts and to a process for selectively hydrogenating nitrile rubbers in the presence of such catalyst compositions, pref. with a preceding metathesis step using the same complex catalyst as in the hydrogenation step. | 05-07-2015 |
20150329666 | HYDROCARBON POLYMERS COMPRISING A 2-OXO-1,3-DIOXOLAN-4-YL END GROUP, PREPARATION AND USE THEREOF - Process for the preparation of a hydrocarbon polymer comprising a 2-oxo-1,3-dioxolan-4-yl end group by ring opening metathesis in the presence of a metathesis catalyst, of a vinyl ethylene carbonate chain transfer agent and of a compound comprising at least one C | 11-19-2015 |
20160032033 | METHODS FOR PRODUCING ALPHA-OLEFIN POLYMER AND HYDROGENATED ALPHA-OLEFIN POLYMER - Provided is a method for producing an α-olefin polymer, comprising the step of polymerizing one or more kinds of α-olefins each having 3 to 30 carbon atoms with a polymerization catalyst obtained by using: (A) a metallocene compound; (B) an ionic compound capable of reacting with the metallocene compound to transform the compound into a cation; (C) an organometallic compound; and (D) one or more kinds of compounds selected from the group consisting of (d-1) an alcohol, (d-2) a phenol, and (d-3) an ether compound, the catalyst having a ratio between the component (A) and the component (D) of from 10:1 to 1:100 in terms of a molar ratio, and having a ratio of the component (D) to the component (C) of less than 1 in terms of a molar ratio. | 02-04-2016 |
20160122376 | RUTHENIUM- OR OSMIUM-BASED COMPLEX CATALYSTS - The present invention provides novel ruthenium or osmium based complex structures with a unique combination of ligands comprising a Schiff-base type ligand, a N-heterocyclic carbene ligand and a CO ligand which can be prepared according to two different routes involving easily accessible starting materials and which represent excellent catalysts for hydrogenating unsaturated compounds, oligomers and polymers, in particular at unforeseeably low temperatures. | 05-05-2016 |
525339000 | Treating in the presence of an elemental metal or inorganic metallic compound | 4 |
20080227923 | PROCESS FOR THE TREATMENT OF SiC-BONDED POLYETHERSILOXANES - The invention relates to a process for the treatment of polyoxyalkylene-polysiloxane block copolymers or alkylpolysiloxane-polyoxyalkylenepolysiloxane block copolymers in which the polysiloxane blocks are bonded to the polyether blocks or alkyl radicals by SiC bonds, wherein the polyoxyalkylene-polysiloxane block copolymers or alkylpolysiloxane-polyoxyalkylenepolysiloxane block copolymers or the solutions thereof are treated with flowing hydrogen gas and optionally a further inert gas in the presence of a combination of hydrogenation catalysts known per se and acid-activated carrier materials and water at temperatures of from 20 to 200° C. and atmospheric pressure over a period of from 0.5 to 10 hours. | 09-18-2008 |
20090281248 | HYDROGENATION OF DIENE-BASED POLYMER LATEX - The present invention relates to a process for the hydrogenation of the carbon-carbon double bonds in a diene-based polymer latex in the absence of any organic solvent by a catalytically active system prepared in-situ based on a first main catalyst component and a secondary water-insoluble catalyst component. | 11-12-2009 |
20130331524 | HYDROGENATION OF DIENE-BASED POLYMERS - This invention relates to a process for the hydrogenation of diene-based copolymers in the presence of catalysts on specific carrier materials containing at least one hyper-branched polymer. | 12-12-2013 |
20160159941 | Process and Catalyst for Resin Hydrogenation - The invention is in the field of catalysis. More specifically, the invention pertains to catalytic hydrogenation processes and catalysts used therein. According to the invention there is provided a process for the hydrogenation of hydrocarbon resins, in particular hydrocarbon resin feeds with a relatively high sulfur content using a cobalt promoted nickel on silica/alumina catalyst, the catalyst per se, and the process of preparing said catalyst. | 06-09-2016 |