Class / Patent application number | Description | Number of patent applications / Date published |
526128000 | Silicon present in organic non-metal compound | 17 |
20080275198 | RANDOM OLEFIN COPOLYMERS - Provided is a method for the production of an olefin co-polymer, which method comprises co-polymerising two or more olefin monomers in the presence of a metallocene catalyst, wherein the metallocene catalyst comprises a metallocene having the following formula: | 11-06-2008 |
20090005524 | Catalysts for ethylene polymerization, main catalyst components thereof and process for preparing the same - The invention discloses a process for preparing a titanium-containing main catalyst component, comprising the steps of: (i) reacting a magnesium compound having a formula (MgRX) | 01-01-2009 |
20090253876 | Fluorene Derivative, Transition Metal Compound, Catalyst for Olefin Polymerization, and Process for Producing Olefin Polymer - Provided is a novel fluorene derivative which is useful as a catalyst component for olefin polymerization, a transition metal compound containing the fluorene derivative as a part of ligand, a catalyst for olefin polymerization containing the transition metal compound, and a process for producing olefin polymer. The fluorene derivative is characterized by being represented by the following general formula [I]: | 10-08-2009 |
20100036068 | HYDROGENATION CATALYST AND PROCESS FOR PRODUCING OLEFIN POLYMER - The purpose of the present invention is to provide a hydrogenation catalyst, which can produce an olefin polymer having a higher molecular weight, and a process for producing an olefin polymer so that an olefin polymer having a higher molecular weight can be produced, by controlling hydrogen concentration in a polymerization reaction system efficiently in polymerizing an olefin in the presence of hydrogen. There is provided a hydrogenation catalyst formed by contacting the undermentioned component (A), the undermentioned component (B), and the undermentioned component (C). There is further provided a process for producing an olefin polymer characterized by polymerizing an olefin in the presence of hydrogen, the undermentioned component (A), the undermentioned component (B), and the undermentioned component (D).
| 02-11-2010 |
20100190942 | AMINOSILANE COMPOUNDS, CATALYST COMPONENTS AND CATALYSTS FOR OLEFIN POLYMERIZATION, AND PROCESS FOR PRODUCTION OF OLEFIN POLYMERS WITH THE SAME - A catalyst for polymerization of olefins formed from (A) a solid catalyst component containing magnesium, titanium, halogen, and an electron donor compound, (B) an organoaluminum compound shown by the formula, R | 07-29-2010 |
20110184135 | POLYMERIZATION MODIFIERS - A composition comprising a polymerization modifier for the copolymerization of at least one olefin monomer and 1-octene and a polymerization process using the polymerization modifier. | 07-28-2011 |
20110196117 | POLYMERIZATION MODIFIERS - A composition comprising a polymerization modifier for the copolymerization of at least one olefin monomer and propylene and a polymerization process using the polymerization modifier. | 08-11-2011 |
20110294970 | ETHYLENE POLYMERIZATION CATALYSTS - The present invention relates to solid catalyst components comprising a reaction product of a titanium compound, a magnesium compound, an alcohol, an aluminum alkoxide, a siloxane mixture, and a maleate derivative; and catalyst systems comprising the solid catalyst components and organoaluminum compounds. The present invention also relates to methods of making the solid catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing ethylene using the catalyst systems. | 12-01-2011 |
20120108771 | SUCCINATE-CONTAINING POLYMERIZATION CATALYST SYSTEM USING BMDS FOR PREPARATION OF POLYPROPYLENE FILM GRADE RESINS - It has been discovered that using n-butylmethyldimethoxysilane (BMDS) as an external electron donor for succinate-containing Ziegler-Natta catalysts can provide a catalyst system that may prepare polypropylene films with improved properties. The catalyst systems of the invention provide for controlled chain defects/defect distribution and thus a regulated microtacticity along with broadened molecular weight distribution. | 05-03-2012 |
20130231447 | NEW INTERNAL DONORS FOR ETHYLENE POLYMERIZATION CATALYSTS AND METHODS OF MAKING AND USING SAME II - Solid catalyst components are disclosed including titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. Further, methods of making the catalyst components and the catalyst systems are disclosed as well as methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems. | 09-05-2013 |
20140206827 | METHOD FOR PRODUCING SOLID CATALYST COMPONENT FOR OLEFIN POLYMERIZATION, CATALYST FOR OLEFIN POLYMERIZATION, AND METHOD FOR PRODUCING OLEFIN POLYMER - A method for producing a solid catalyst component for olefin polymerization includes bringing a magnesium compound, a tetravalent titanium halide compound, and an electron donor compound represented by a general formula (1) into contact with each other, reacting the mixture, washing the resulting reaction product to obtain a solid component, bringing the solid component, a tetravalent titanium halide compound, and an electron donor compound represented by a general formula (2) into contact with each other, reacting the mixture, and washing the resulting reaction product. | 07-24-2014 |
20140243490 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I) | 08-28-2014 |
20150322179 | PROPYLENE-BASED TERPOLYMERS - A terpolymer obtainable by the step of copolymerizing propylene, ethylene and 1-hexene in the presence of a catalyst system comprising the product obtained by contacting the following components:
| 11-12-2015 |
20150361193 | Catalysts for Preparing Ultra High Molecular Weight Polyethylene (UHMWPE) - Group 4 transition metal complexes of bidentate iminonaphthol pro-ligands can be used as catalysts to polymerise olefins, such as ethylene. Group 4 transition metal complexes of bidentate iminonaphthol pro-ligands can have a single-site nature, allowing the catalysts to be used to prepare ultra high molecular weight polyethylene having a narrow molecular weight distribution. | 12-17-2015 |
20160115254 | HYDROGENATION CATALYST AND PROCESS FOR PRODUCING OLEFIN POLYMER - The present invention provides a hydrogenation catalyst, which can produce an olefin polymer having a higher molecular weight, and a process for producing an olefin polymer having a higher molecular weight, by controlling hydrogen concentration in a polymerization reaction system efficiently in polymerizing an olefin in the presence of hydrogen. There is provided a hydrogenation catalyst formed by contacting the undermentioned component (A), the undermentioned component (B), and the undermentioned component (C). There is further provided a process for producing an olefin polymer characterized by polymerizing an olefin in the presence of hydrogen, the undermentioned component (A), the undermentioned component (B), and the undermentioned component (D). Component (A): a titanocene compound; Component (B): a silicon compound represented by the undermentioned general formula [1]: Si(OR | 04-28-2016 |
20160137761 | PROCESS FOR PRODUCTION OF POLYPROPYLENE WITH HIGH POLYDISPERSITY - Process for the preparation of polypropylene in a polymerization process, said comprises a pre-polymerization reactor and at least one polymerization reactor, wherein said process leads to polypropylene with broad molecular weight distribution. | 05-19-2016 |
20160176998 | CATALYST SYSTEM FOR POLYMERISATION OF AN OLEFIN | 06-23-2016 |