| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 526124500 | Contains Si or Al inorganic oxygen-containing compound | 13 |
| 20090171043 | Process of Preparation of Catalytic Support and Supported Bimetalic Catalysts for Production of Homopolymers and Copolymers of Ethylene with Alpha-Olefins of High and Ultra High Molecular Weight and with Broad Molecular Weight Distribution in Slurry, Bulk and Gas Phase Processes and Products Thereof - The present invention relates to a process for the preparation of catalytic support and the supported bimetallic catalysts, used in the production of ethylene homopolymers and ethylene copolymers with □-olefins, of high and ultra high molecular weight with broad molecular weight distribution, in gas or liquid phase polymerization processes, the latter being in slurry, bulk or suspension, and the products obtained from these processes. | 07-02-2009 |
| 20110166305 | Robust Spray-Dried Ziegler-Natta Procatalyst and Polymerization Process Employing Same - A Ziegler-Natta procatalyst composition in the form of solid particles and comprising magnesium, halide and transition metal moieties, said particles having an average size (D50) of from 10 to 70 μm, characterized in that at least 5 percent of the particles have internal void volume substantially or fully enclosed by a monolithic surface layer (shell), said layer being characterized by an average shell thickness/particle size ratio (Thickness Ratio) determined by SEM techniques for particles having particle size greater than 30 μm of greater than 0.2. | 07-07-2011 |
| 20120226005 | SUPPORTED NONMETALLOCENE CATALYST, PREPARATION AND USE THEREOF - This invention relates to a supported nonmetallocene catalyst and preparation thereof. The supported nonmetallocene catalyst can be produced with a simple and feasible process and is characterized by an easily controllable polymerization activity. This invention further relates to use of the supported nonmetallocene catalyst in olefin homopolymerization/copolymerization, which is characterized by a lowered assumption of the co-catalyst as compared with the prior art. | 09-06-2012 |
| 20130030134 | ZIEGLER CATALYST AND METHOD OF SYNTHESIZING THE SAME - The various embodiments herein disclose a method for making a Zieglaer catalyst including a reaction product of a dispersed magnesium alkoxide or a dispersed mixture of magnesium alkoxide and silica with a transition metal compound of titanium, zirconium, vanadium or chromium, and a chlorine containing organoaluminum mixed together with two additional components comprising a halogen containing silicon compound and aliphatic primary halogenated hydrocarbons respectively. The embodiments also provide a method of polymerization of 1-olefin monomers using the Ziegler catalyst. | 01-31-2013 |
| 20140296454 | CATALYST SYSTEM FOR THE PRODUCTION OF ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE - The invention relates to a catalyst system for the production of ultrahigh molecular weight polyethylene comprising I. a solid reaction product obtained by reaction of: (a) a hydrocarbon solution comprising (1) an organic oxygen containing magnesium compound or a halogen containing magnesium compound and (2) an organic oxygen containing titanium compound and (b) a mixture comprising a metal compound having the formula MeR | 10-02-2014 |
| 526124600 | Contains organic non-metal containing B, Si, N, P, or chalcogen material | 8 |
| 20120220739 | Catalyst for the Polymerization of Olefins - The present invention relates to catalysts systems for the polymerization of ethylene and its mixtures with olefins CH | 08-30-2012 |
| 20140142262 | 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) | 05-22-2014 |
| 20140171604 | MAGNESIUM DICHLORIDE-ETHANOL ADDUCTS AND CATALYST COMPONENTS OBTAINED THEREFROM - Solid adducts comprising MgCl | 06-19-2014 |
| 20140235805 | INTERNAL DONOR STRUCTURE FOR OLEFIN POLYMERIZATION CATALYSTS AND METHODS OF MAKING AND USING SAME - The presently disclosed and claimed inventive concept(s) relates to solid catalyst components comprising 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. The presently disclosed and claimed inventive concept(s) further relates to methods of making the catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems. | 08-21-2014 |
| 20140243489 | 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 |
| 20140364576 | SUPPORTED NONMETALLOCENE CATALYSTS, PREPARATION AND USE THEREOF - Disclosed is a supported nonmetallocene catalyst and preparation thereof. The supported nonmetallocene catalyst is characterized by a high catalyst activity for olefin polymerization and a significant monomer effect. Further disclosed is use of the supported nonmetallocene catalyst in olefin homopolymerization/copolymerization. The polymer produced therewith is characterized by superior particle morphology, a high bulk density, and/or a narrow molecular weight distribution. | 12-11-2014 |
| 20150073108 | HIGH SURFACE AREA SILICON DERIVATIVE FREE MAGNESIUM- TITANIUM CATALYST SYSTEM FOR ETHYLENE POLYMERIZATION AND PROCESS OF PREPARATION THEREOF - The present invention relates to a high surface area silicon derivative free magnesium-titanium catalyst system for ethylene polymerization comprising: magnesium mixed alkoxide and titanium chloride. The present invention also provides a simple process for the preparation of high surface area silicon derivative free magnesium-titanium catalyst system for ethylene polymerization by reacting magnesium alkoxide precursor with titanium compound using dialkyl dialkoxy silane as external donor. The invention further relates to the process for ethylene polymerization using the silicon derivative free magnesium-titanium catalyst system and polyethylene produced by the catalyst system having narrow molecular weight distribution and higher bulk density. | 03-12-2015 |
| 20160039954 | SOLID CATALYST COMPONENTS FOR OLEFIN POLYMERIZATION AND METHODS OF MAKING AND USING THE SAME - Solid catalyst components are disclosed including titanium, magnesium, halogen and an internal electron donor compound having at least one substituted 2-methoxy-1-napthoate, 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. | 02-11-2016 |
