| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 526159000 | Material contains non-transition elemental metal, hydride thereof, or carbon to non-transition metal atom bond | 89 |
| 20080275199 | POLYMERIZATION PROCESS FOR PRODUCING POLYDIENES - There is disclosed a process for producing a conjugated diene-containing polymer wherein a stream comprising conjugated diene monomer and a specified catalyst, that includes a lanthanide compound and an aluminoxane, is passed through an orifice into the reaction zone of a polymerization vessel, maintained under specific pressure conditions to form a cement having a viscosity that allows the cement to be conveyed through a devolatilization zone, where desired. | 11-06-2008 |
| 20080281062 | Catalyst System for the Polymerization of Olefin - A catalyst system solution obtainable by a process comprising the following steps:
| 11-13-2008 |
| 20090054608 | Process for Preparing Crystalline Ethylene (Co) Polymers - A process for preparing crystalline ethylene (co)polymers comprising (co)polymerizing ethylene in the presence of carried out in the presence catalyst system comprising (a) a solid catalyst component comprising Ti, Mg, halogen, ORI groups, where RI is a C1-C12 hydrocarbon group optionally containing heteroatoms, having ORI/Ti molar ratio of at least 0.5, an amount of titanium, with respect to the total weight of said solid catalyst component, higher than 4% by weight, and showing a specific pattern of the SS-NMR; and (b) an aluminum alkyl compound as a cocatalyst. The process allows to obtain in good yields ethylene polymers with narrow MWD. | 02-26-2009 |
| 20090209714 | Catalyst Components for the Polymerization of Olefins - Catalyst components for the(co)polymerization of ethylene comprising Ti, Mg, halogen, ORI groups, where RI is a C1-C12 hydrocarbon group optionally containing heteroatoms, having ORI/Ti molar ratio in the range 0.1-1.5, a Mg/Ti molar ratio of less than 8, an amount of titanium, with respect to the total weight of said solid catalyst component, higher than 4% by weight characterized by a specific SS-NMR pattern are particularly useful for preparing narrow MWD crystalline ethylene polymers. | 08-20-2009 |
| 20090270570 | METHOD FOR PRODUCING POLYOLEFIN AND CATALYST COMPONENT USED FOR PRODUCTION OF POLYOLEFIN - Provided is a method of commercially advantageously producing a high-quality polyolefin with high yield in a homogeneous system in the presence of a catalyst containing a transition metal compound as a main catalyst component. A method of producing a polyolefin includes polymerizing one or more substances selected from ethylene and a-olefins having 3 to 30 carbon atoms in a saturated hydrocarbon solvent in the presence of a catalyst containing a catalyst component (A) composed of a transition metal compound of Group IV of the periodic table, and a catalyst component (B) composed of an organic aluminoxane, in which the component (B) is obtained by subjecting an organic aluminoxane, which is soluble in a saturated hydrocarbon solvent, to a contact treatment with an organic aluminum compound having an alkyl group with 1 to 10 carbon atoms in advance in the saturated hydrocarbon solvent. | 10-29-2009 |
| 20100179291 | LONG CHAIN-BRANCHED ETHYLENE-ALPHA OLEFIN COPOLYMER - The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced. | 07-15-2010 |
| 20100227989 | CATALYST AND PROCESS FOR PRODUCING A POLYMER CONTAINING A HIGH MOLECULAR WEIGHT TAIL - The present invention provides metal-containing sulfated activator-supports, and polymerization catalyst compositions employing these activator-supports. Methods for making these metal-containing sulfated activator-supports and for using such components in catalyst compositions for the polymerization of olefins are also provided. | 09-09-2010 |
| 20100292423 | CATALYST COMPOSITION FOR OLIGOMERIZATION OF ETHYLENE OLIGOMERIZATION PROCESS AND METHOD FOR ITS PREPARATION - Catalyst composition for the oligomerization of ethylene, comprising (i) an at least partially hydrolyzed transition metal compound, obtainable by controlled addition of water to a transition metal compound having the general formula MX | 11-18-2010 |
| 20110003951 | 1-BUTENE COPOLYMERS - A copolymer of 1-butene and at least a C | 01-06-2011 |
| 20110003952 | PROPYLENE POLYMERIZATION CATALYST SYSTEM - The invention relates to a catalyst system for polymerization of propylene, the catalyst system comprising a Ziegler Natta procatalyst, an organoaluminium cocatalyst, a monoester of an aromatic carboxylic acid as the internal donor and ethyl-4-isopropoxy benzoate as the selectivity control agent. The invention also relates to a process for polymerization using the catalyst system as well as to polymers prepared by the process. | 01-06-2011 |
| 20110009579 | Processes For Producing A Catalyst Component For Addition Polymerization, A Catalyst And An Addition Polymer - A production process of a polymerization catalyst component includes contacting compound (a) such as diethyl zinc represented by the defined formula [1], a compound (b) such as pentafluorophenol, represented by the defined formula [2], a compound (c) such as water, represented by the defined formula [3], and particles (d), such as silica, with one another in a hydrocarbon solvent under an agitator power of 0.05 kW/m | 01-13-2011 |
| 20110092656 | CATALYST SYSTEM FOR THE POLYMERIZATION OF OLEFINS - The present invention relates to catalysts systems for the polymerization of olefins CH | 04-21-2011 |
| 20110152484 | METHOD FOR CONTROLLING A PROCESS FOR POLYMERISATION OF AN OLEFIN - The present invention relates to a method for controlling a process for polymerisation of an olefin, and in particular to a method for controlling a process for polymerising at least one olefin in a reaction zone, said process comprising in the reaction zone a reaction mixture and polymer particles, the reaction mixture comprising a principal olefin and at least one further reagent, and wherein the process is controlled using the ratio of at least one further reagent to principal olefin in the polymer particles in the reaction zone or in the amorphous phase of said polymer particles. | 06-23-2011 |
| 20120208970 | HEAT-TREATED ZIEGLER-NATTA CATALYSTS FOR ETHYLENE POLYMERIZATION - Catalyst systems, processes of forming the same and polymers formed therefrom are described herein. The processes of forming the catalyst systems generally include contacting a blend of an alkyl magnesium compound and an organoaluminum compound with an alcohol to form a magnesium dialkoxide compound; contacting the magnesium dialkoxide compound with a first agent to form a solution of reaction product “A”, the first agent including a halogenating/titanating agent; contacting the solution of reaction product “A” with a second agent to form a solid reaction product “B”, the second agent including a blend of a first metal halide and a metal alkoxide; contacting the solid reaction product “B” with a third agent to form a solid reaction product “C”, the third agent including a second metal halide; contacting the solid reaction product “C” with a fourth agent to form a solid reaction product “D”, the fourth agent including a third metal halide; contacting the solid reaction product “D” with a fifth agent to form a catalyst component, the fifth agent including a reducing agent; and heating an intermediate selected from reaction product “A”, reaction product “B”, reaction product “C”, reaction product “D” and combinations thereof to form a heat-treated catalyst that results in a shear response and a molecular weight distribution for a polymer produced by the heat-treated catalyst that are greater than a shear response and a molecular weight distribution for a polymer produced by an identical non-heat-treated catalyst. | 08-16-2012 |
| 20120264897 | CATALYST SYSTEMS FOR RUBBER POLYMERIZATIONS - The invention provides a catalyst system comprising: A) cobalt II carboxylate, and B) at least one co-catalyst of the following Structure A wherein n is from 1 to 10, preferably from 1 to 6, and more preferably from 1 to 4; each R is independently an alkyl. The invention also provides a catalyst system comprising: A) cobalt II carboxylate; and B) the reaction product of at least the following components: i) trialkyl aluminum, ii) dialkyl aluminum chloride, iii) water, and wherein the molar ratio of aluminum to chloride (Al:Cl) is less than 1 (preferably 0.7 to 0.2), the molar ratio of water to aluminum (H | 10-18-2012 |
| 20140031505 | POLYOLEFIN GAS PHASE POLYMERIZATION WITH 3-SUBSTITUTED C4-10-ALKENE - An alkene interpolymer is prepared by polymerizing at least one 3-substituted C | 01-30-2014 |
| 20140080983 | POLYMERIZATION OF ISOPRENE FROM RENEWABLE RESOURCES - This invention relates to compositions and methods for producing polymers of isoprene derived from renewable resources, such as isoprene produced from cultured cells that use renewable carbon sources. A starting isoprene composition, such as a bioisoprene composition, is distinguished from petroleum based isoprene by its purity profile (such as lower levels of certain C | 03-20-2014 |
| 20150361187 | FORMATION OF A ZIEGLER-NATTA CATALYST - The process includes reacting a reaction mixture comprising magnesium ethoxide (Mg(OEt) | 12-17-2015 |
| 20150368383 | ISOPRENE POLYMERIZATION CATALYST COMPOSITION, METHOD FOR PRODUCING SYNTHETIC POLYISOPRENE, AND SYNTHETIC POLYISOPRENE - An isoprene polymerization catalyst composition includes: Component (a): a rare earth element compound having a rare earth element-oxygen bond or a rare earth element-sulfur bond; Component (b): an ionic compound; and Component (c): at least one compound selected from the group consisting of a compound of formula (X): YR | 12-24-2015 |
| 20160053034 | POLYPROPYLENE COMPOSITION WITH IMPROVED IMPACT RESISTANCE FOR PIPE APPLICATIONS - The present invention relates to a polypropylene composition comprising a multimodal propylene random copolymer with at least one comonomer selected from alpha-olefins with 2 or 4 to 8 carbon atoms, wherein the polypropylene composition has a melt flow rate MFR | 02-25-2016 |
| 20160115262 | PROPYLENE COPOLYMER FOR THIN-WALL PACKAGING - Propylene copolymer having a comonomer content in the range of 2.0 to 11.0 mol.-% and a melt flow rate MFR | 04-28-2016 |
| 526160000 | Transition metal bonded to carbon atom | 44 |
| 20080287619 | Supported metallocene catalysts - Method employing a supported metallocene catalyst composition in the production of an isotactic ethylene propylene co-polymer. The composition comprises a metallocene component supported on a particulate silica support having average particle size of 10-40 microns, a pore volume of 1.3-1.6 ml/g, a surface area of 200-400 m 2/g. An alkylalumoxane cocatalyst component is incorporated on the support. The isospecific metallocene is characterized by the formula: | 11-20-2008 |
| 20080300372 | Catalyst Activators, Processes for Making Same, and Use Thereof in Catalysts and Polymerization of Olefins - A composition useful for activating catalysts for olefin polymerization is provided. The composition is derived from at least: carrier; organoaluminoxy compound; component having at least one electron withdrawing group and at least one active proton; and Lewis base. Alternatively, the composition is derived from at least: carrier; organoaluminoxy compound; component having at least one electron withdrawing group and at least one active proton; and ionic compound having at least one active proton. Alternatively, the composition is derived from at least: carrier; organoaluminoxy compound; component having at least one electron donating group and at least one active proton; and, optionally, Lewis base. Alternatively, the composition is derived from at least: carrier; organoaluminoxy compound; component having at least one electron withdrawing group and at least one active proton; and component having at least one electron donating group and at least one active proton—and optionally, the composition comprises Lewis base. | 12-04-2008 |
| 20090005525 | Catalyst Composition Comprising Group 4 Transition Metal Complexes and Method for Preparing Polyolefins Using the Same - The present invention relates to a catalyst composition comprising a novel structure of a Group 4 transition metal compound, to a method for preparing the same, and to a method for preparing a polyolefin using the catalyst composition. The method for preparing a polyolefin according to the present invention can be used for preparing a polyolefin having a high molecular weight and high copolymerizability with a high activity even at a high polymerization temperature and for preparing a polyolefin having a double composition distribution. | 01-01-2009 |
| 20090082533 | Process for preparing low molecular weight olefin polymers, organometallic transition metal compounds biscyclopentadienyl ligand systems and catalyst systems - The present invention relates to a process for preparing olefin polymers having a molar mass M | 03-26-2009 |
| 20090088541 | ALUMINOXANE COMPOSITIONS, THEIR PREPARATION, AND THEIR USE IN CATALYSIS - Aluminoxane compositions derived from aluminoxane source, halogen source, and Lewis base are provided. Such compositions are useful for activating catalysts for olefin polymerization. | 04-02-2009 |
| 20090156763 | Process for manufacturing a thermoplastic elastomeric material - A process for manufacturing a thermoplastic elastomeric material includes at least one elastomeric phase and at least one thermoplastic phase by the following steps: surface-treating a vulcanized rubber in a subdivided form with an effective amount of at least one organometallic polymerization catalyst; and polymerizing at least one ethylenically unsaturated monomer in the presence of the surface-treated vulcanized rubber in a subdivided form to obtain at least one thermoplastic phase. | 06-18-2009 |
| 20090163682 | Process of Preparation of Catalytic Support and Supported Metallocene Catalysts for Production of Homopolymers and Copolymers of Ethylene with Alfa-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 a process for the preparation of catalytic support and the supported metallocene catalysts used in the production of ethylene homopolymers and ethylene copolymers with α-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. | 06-25-2009 |
| 20090171047 | Metallocene Compounds - A bridged metallocene compound of formula (I) | 07-02-2009 |
| 20090176949 | Transition metal complexes, catalyst compositions containing the same, and methods for preparing ethylene homopolymers or copolymers of ethylene and alpha-olefins using the same - The present invention relates to a transition metal complex and a transition metal catalyst composition comprising the same for the preparation of an ethylene homopolymer or a copolymer of ethylene and α-olefin. More particularly, it relates to a group IV transition metal catalyst having a cyclopentadiene derivative and at least one aryl oxide ligand in which an oxygen-containing heterocycle is fused at the ortho-position around a group IV transition metal, with no crosslinkage between the ligands, a catalyst composition comprising the transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst, and a process for preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin using the same. | 07-09-2009 |
| 20090270571 | CATALYST ACTIVATORS, PROCESSES FOR MAKING SAME, AND USE THEREOF IN CATALYSTS AND POLYMERIZATION OF OLEFINS - A composition useful for activating catalysts for olefin polymerization Is provided. The composition is derived from at least: carrier; treated organoaluminoxy compound: and ionic compound having at feast one active proton. | 10-29-2009 |
| 20090286945 | Heterocyclic metallocenes and polymerization catalysts - A new class of heterocyclic metallocenes, a catalytic system containing them and a process for polymerizing addition polymerizable monomers using the catalytic system are disclosed; the heterocyclic metallocenes correspond to the formula (I): Y | 11-19-2009 |
| 20090286946 | Process for the Copolymerization of Propylene - A solution polymerization process comprising contacting under polymerization conditions propylene and at least ethylene or an alpha olefin of formula CH | 11-19-2009 |
| 20090292089 | LIGAND-MODIFIED ZIEGLER-NATTA CATALYST FOR OLEFIN (CO-) POLYMERIZATION - The present invention relates to a Ziegler-Natta catalyst comprising a solid, ligand-modified catalyst component formed at least from
| 11-26-2009 |
| 20100022727 | POLYMER SUPPORTED CHROME CATALYST FOR OLEFINS POLYMERIZATION - A highly active supported chromium catalyst composition for ethylene and other olefins polymerization and also for ethylene copolymerization with efficient incorporation of comonomer, produces polymers with superior spherical morphology, improved bulk density and almost 0% fines. The catalyst composition component includes at least one chromium compound, mainly chromium acetylacetonate, or chromium hexaflouroacetonylacetonate, or chromium diethylmalonate. One magnesium compound, or aluminum compound, metal alkoxy compound and defined polymer particles mainly chloromethylated cross linked styrene-DVB copolymer or polyvinylchloride. The catalyst composition, when used in conjunction with an organoaluminum compound or a mixture of organoaluminum compounds, can be used for olefin polymerization to produce medium or high density polyethylene and copolymers of ethylene with alpha-olefins having about 3 to 18 carbon atoms. | 01-28-2010 |
| 20100069588 | PROCESS FOR PRODUCTION OF SYNDIOTACTIC PROPYLENE POLYMER - It is an object of the present invention to provide a process for producing a syndiotactic propylene polymer with high polymerization activity and high efficiency by a solution polymerization method without deposition of polymers (excluding a white state), and a production process capable of conducting the above production continuously, provided that these processes could not be attained conventionally. | 03-18-2010 |
| 20100144990 | Propylene Block Copolymer and Process for Production Thereof - Disclosed is a propylene block copolymer having excellent flexibility and impact resistance and showing a good polymer powder form. Also disclosed is a process for producing the copolymer. More specifically, the copolymer is a novel propylene block copolymer which satisfies a specific requirement and is produced by a process comprising continuously performing a multi-step polymerization composed of a former step in which a propylene homopolymer component or a specific propylene copolymer component is produced in the presence of a metallocene catalyst carried on a support and a latter step in which propylene and a specific copolymer component are produced by gas phase polymerization. | 06-10-2010 |
| 20100190943 | MULTI-BLOCK COPOLYMER PROCESS USING POLAR SOLVENTS - A process for forming a high molecular weight, multi-block copolymer comprising two or more chemically distinguishable segments or blocks, the process comprising polymerizing one or more olefin monomers in the presence of a chain shuttling agent and a catalyst composition comprising two or more olefin polymerization catalysts capable of preparing polymers having differing chemical or physical properties under equivalent polymerization conditions, or a catalyst composition comprising at least one olefin polymerization catalyst containing multiple active catalyst sites capable of preparing polymers having differing chemical or physical properties | 07-29-2010 |
| 20100249345 | PROCESS FOR THE PREPARATION OF CATALYST PASTE AND PRODUCTS THEREOF - A process for the preparation of a catalyst paste comprising the following steps:
| 09-30-2010 |
| 20100249346 | METALLOCENE COMPOUNDS BASED ON ETHANEDIYL-BRIDGED INDENE AND CYCLOPENTADITHIOPHENE LIGANDS - A metallocene compound of formula (I) | 09-30-2010 |
| 20100261861 | Polymerization Catalysts and Methods of Using the Same to Produce Polyolefin Products - Polymerization catalyst systems including three or more catalyst compounds are provided. Methods for olefin polymerization including the aforementioned catalyst systems are also provided. | 10-14-2010 |
| 20100305287 | Metallocene-Substituted Pyridyl Amines, Their Metal Complexes, and Processes for Production and Use Thereof - This invention relates to new transition metal complexes for use in olefin polymerization and oligomerization. The active complex is a pyridine amide having a metallocenyl substituent as part of the ligand structure. The invention also relates to novel precursors for the ligand systems of such complexes obtained from metallocenyl-substituted pyridine compounds through sequences involving addition-condensation or lithium-halogen exchange (with subsequent metathesis) reactions. | 12-02-2010 |
| 20100324242 | HIGHLY PURE, TERMINAL-UNSATURATED OLEFIN POLYMER AND PROCESS FOR PRODUCTION THEREOF - Provided are a highly-pure, terminal-unsaturated olefin polymer which is produced through homopolymerization or copolymerization of one or more α-olefins having from 3 to 28 carbon atoms, or copolymerization of at least one α-olefin having from 3 to 28 carbon atoms and ethylene, in the presence of a catalyst, and which satisfies the following (1) to (4); and a method of efficiently producing the olefin polymer having a high degree of terminal unsaturation degree and containing little catalyst residue.
| 12-23-2010 |
| 20110144291 | Post-Metallocene Complexes Based on Bis(Naphtoxy)Pyridine and Bis(Naphtoxy)Thiophene Ligands for the Polymerisation of Ethylene and Alpha-Olefins - The present invention relates to the field of group 4 post-metallocene complexes based on sterically encumbered bis(naphtoxy)pyridine and bis(naphtoxy)thiophene ligands. It also relates to the use of such post-metallocene complexes in the polymerisation of ethylene and alpha-olefins. | 06-16-2011 |
| 20110160413 | TRANSITION METAL COMPLEX, CATALYST COMPOSITION INCLUDING THE SAME AND OLEFIN POLYMER USING CATALYST COMPOSITION - Provided are a novel transition metal complex where a monocyclopentadienyl ligand to which an amido group is introduced is coordinated, a catalyst composition including the same, and an olefin polymer using the catalyst composition. The transition metal complex has a pentagon ring structure having an amido group connected by a phenylene bridge in which a stable bond is formed in the vicinity of a metal site, and thus, a sterically hindered monomer can easily approach the transition metal complex. By using a catalyst composition including the transition metal complex, a linear low density polyolefin copolymer having a high molecular weight and a very low density polyolefin copolymer having a density of 0.910 g/cc or less can be produced in a polymerization of monomers having large steric hindrance. Further, the reactivity for the olefin monomer having large steric hindrance is excellent. | 06-30-2011 |
| 20110218310 | PROCESS FOR THE PREPARATION OF AN UNSUPPORTED, SOLID OLEFIN POLYMERISATION CATALYST AND USE IN POLYMERISATION OF OLEFINS - Improved process for the preparation of an unsupported, heterogeneous olefin polymerisation catalyst, comprising an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC) or of an actinide or lanthanide in the form of solid particles comprising the steps of a) preparing a solution of an aluminoxane and an ionic complex M-X, M being an alkali or earth alkali metal and X being a halide or pseudo halide, in a molar ratio of Al of the aluminoxane to M of the ionic complex between 80:1 and 300:1, b) mixing said solution with an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC) or of an actinide or lanthanide in a molar ratio of M of the ionic complex to the transition metal of the organometallic compound between 1:1 and 4:1, yielding a second solution, c) dispersing said second solution obtained in step b) in a solvent immiscible therewith to form an emulsion in which said second solution of step b) forms the dispersed phase in the form of droplets and the solvent immiscible with said solution forms the continuous phase, d) solidifying said dispersed phase to convert said droplets to solid particles and optionally recovering aid particles to obtain said catalyst, the catalysts itself and its use for olefin polymerisation. | 09-08-2011 |
| 20110282017 | SOLID POLYMETHYLALUMINOXANE COMPOSITION AND METHOD FOR MANUFACTURING SAME - Disclosed are: a solid polymethylaluminoxane composition which does not utilize silica or the like, has the form of relatively fine particles, has more uniform particle sizes, and exhibits a high polymerization activity when used in the preparation of an olefin polymer; a process for producing the solid polymethylaluminoxane composition; a polymerization catalyst; and a process for producing an olefin polymer. Specifically disclosed are: a solid polymethylaluminoxane composition which has an aluminum content of 36 to 41 mass % and contains a methyl group derived from a trimethylaluminum moiety at a molar fraction of 12 mol % or less; a process for producing the solid polymethylaluminoxane composition, which comprises the step of heating an aromatic hydrocarbon solution containing polymethylaluminoxane and trimethylaluminum to cause the precipitation of the solid polymethylaluminoxane composition; a polymerization catalyst for an olefin, which comprises the solid polymethylaluminoxane composition and a transition metal compound as catalyst components; and a process for producing an olefin polymer by using the polymerization catalyst. | 11-17-2011 |
| 20120101241 | ETHYLENE/a-OLEFIN/DIENE SOLUTION POLYMERIZATION PROCESS AND POLYMER - A catalyst composition comprising a zirconium complex of a polyvalent aryloxyether and the use thereof in a continuous solution polymerization of ethylene, one or more C | 04-26-2012 |
| 20130059990 | SOLID SUPPORT-POLYMETHYLALUMINOXANE COMPLEX, METHOD FOR PRODUCING SAME, OLEFIN POLYMERIZATION CATALYST, AND METHOD FOR PRODUCING POLYOLEFIN - Disclosed is a solid support-polymethylaluminoxane complex exhibiting a higher polymerization activity than a conventional substance and being homogeneous. Also disclosed is a method for producing an olefin-based polymer having a favorable quality using the complex and a transition metal compound. The complex comprises a coating layer containing polymethylaluminoxane and trimethylaluminum on the surface of a solid support. The coating layer comprises a solid polymethylaluminoxane composition in which (i) the content of aluminum is in a range of 36 to 41 mass % and (ii) the molar fraction of methyl groups derived from a trimethylaluminum moiety to the total number of moles of methyl groups is 12 mol % or less. Also disclosed is an olefin polymerization catalyst comprising the complex and a transition metal compound represented by general formula (III): MR | 03-07-2013 |
| 20130338322 | Activating Agents for Hafnium-Based Metallocene Components - The present invention discloses an active metallocene catalyst system prepared with a hafnium-based metallocene catalyst system and an activating agent comprising an aluminoxane and a sterically hindered Lewis base. | 12-19-2013 |
| 20140039138 | Catalysts Comprising Salan Ligands - Catalysts comprising salan ligands with carbazole moieties. Also, catalyst systems comprising the catalyst and an activator; methods to prepare the ligands, catalysts and catalyst systems; processes to polymerize olefins using the catalysts and/or catalyst systems; and the olefin polymers prepared according to the processes. | 02-06-2014 |
| 20140039139 | Nonsymmetric Catalysts Comprising Salan Ligands - Catalysts comprising a non-symmetrical Salan ligand with a carbazole moiety. Also disclosed are catalyst systems comprising the catalyst and an activator; methods to prepare the ligands, catalysts and catalyst systems; processes to polymerize olefins using the catalysts and/or catalyst systems; and the olefin polymers prepared according to the processes. | 02-06-2014 |
| 20140039140 | Vinyl Terminated Polyethylene with Long Chain Branching - Vinyl terminated polyolefins with long chain branching produced with Salan catalysts having carbazole moieties. | 02-06-2014 |
| 20140288251 | POLYMERIZATION METHOD USING SURFACTANT-CONTAINING PARTICLE - An object of the present invention is to provide a method which can simply suppress fouling in a reactor and, according to the present invention, there is provided a method of polymerizing addition polymerizable monomers using a catalyst formed by bringing (A) a transition metal compound represented by the following general formula [3] or μ-oxo type transition metal compound dimer thereof and (B) an activating agent into contact with one another, the method comprising polymerizing addition polymerizable monomers in a solvent to which a surfactant-containing particle obtained by mixing a particle composed of an inorganic compound or an organic polymer, and at least one surfactant selected from the group consisting of a compound represented by the following general formula [1] and a compound represented by general formula [2] has been added. | 09-25-2014 |
| 20140296458 | TITANIUM-CATALYST SYSTEM COMPRISING SUBSTITUTED CYCLOPENTADIENYL, GUANIDINE AND DIENE LIGANDS - The invention relates to a catalyst system for the polymerization of olefins comprising a metal complex of formula CyLMD and an activating cocatalyst, wherein M is titanium, Cy is a cyclopentadienyl-type ligand, D is a diene, L is a guanidinate-containing ligand of the formula (I) wherein each A is independently selected from nitrogen or phosphorous and R, R | 10-02-2014 |
| 20140309387 | TRANSITION METAL CATALYST COMPOSITION INCLUDING A TRANSITION METAL COMPOUND AND A METHOD OF PREPARING A POLYOLEFIN USING THE CATALYST COMPOSITION - The present invention relates to a transition metal catalyst composition which can exhibit high reactivity in a polymerization reaction of a polyolefin and can easily control characteristics such as chemical structure, molecular weight distribution, mechanical properties, and the like of a synthesized polyolefin, and a method of preparing a polyolefin using the catalyst composition. | 10-16-2014 |
| 20150057418 | METHOD FOR MANUFACTURING A SMALL PARTICLE DIAMETER PRODUCT OF SOLID POLYMETHYLALUMINOXANE COMPOSITION - A solid polymethylaluminoxane composition is provided having uniform particle diameter in the form of fine particles of less than 5 μm employed to polymerize olefins with high polymerization activity without silica. A method for manufacturing thereof, a polymerization catalyst, and a method for manufacturing a polyolefin are also provided. The solid polymethylaluminoxane composition: has an aluminum content within a range of 36 mass % to 43 mass %; has a mole fraction of methyl groups derived from trimethylaluminum moieties relative to the total number of mols of methyl groups of 12 mol % or less; and is particulate having a median diameter based on volume within a range of 0.1 μm to less than 5 μm. In a step of heating an aromatic hydrocarbon solution containing trimethylaluminum and the polymethylaluminoxane to cause solid polymethylaluminoxane composition to precipitate, prior to or during the heat treating step, a dry, inert gas is bubbled through. | 02-26-2015 |
| 20150065669 | Higher Density Polyolefins With Improved Stress Crack Resistance - Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can employ a catalyst system containing two or three metallocene components, resulting in ethylene-based copolymers that can have a medium density and improved stress crack resistance. | 03-05-2015 |
| 20150337058 | Vinyl Terminated Polyethylene with Long Chain Branching - Vinyl terminated polyolefins with long chain branching produced with Salan catalysts having carbazole moieties. | 11-26-2015 |
| 20150353651 | PROCESSES FOR MAKING CATALYST COMPOSITIONS HAVING IMPROVED FLOW - This disclosure is directed to processes for producing catalyst compositions having more consistent properties and improved flowability. The processes may involve combining, at a controlled temperature of 30° C. or higher, a metal carboxylate salt with an organic solvent having a dielectric constant at 25° C. of greater than or equal to 3.0 to produce an extracted metal carboxylate salt that is essentially free of carboxylic acids. The extracted metal carboxylate salt may then be combined with a catalyst. | 12-10-2015 |
| 20160046735 | METHOD OF PREPARING OLEFIN-BASED POLYMER AND OLEFIN-BASED POLYMER PREPARED THEREBY - The present invention relates to a method of preparing an olefin-based polymer including a step of polymerizing an olefin monomer in the presence of a catalyst composition including a cis isomer and a trans isomer. According to the method of preparing an olefin-based polymer according to an embodiment of the present invention, similar level of density and molecular weight may be exhibited with a relatively smaller amount of octene when compared to that of a common polymer. Thus, a stable olefin-based polymer having good copolymerization properties may be prepared. | 02-18-2016 |
| 20160122455 | METAL COMPLEX WITH A BRIDGED CYCLOPENTADIENYL AMIDINE LIGAND - The present invention relates to a new metal complex of the formula (1) | 05-05-2016 |
| 20160130371 | CATALYST FOR OLEFIN POLYMERIZATION, METHOD FOR ITS PREPARATION AND USE THEREOF - The invention relates to a catalyst for olefin polymerization represented by the general formula (1): wherein; M is a transition metal; X | 05-12-2016 |
| 20160194422 | METALLOCENE COMPOUND AND METHOD OF PREPARING THE SAME (As Amended) | 07-07-2016 |
| 20190144576 | Polyethylene Compositions and Articles Made Therefrom | 05-16-2019 |
| 526161000 | Transition metal compound contains P, S, or N atom | 19 |
| 20080207855 | Polymerization of acyclic aliphatic olefins - A robust, impurity tolerant method of making substantially linear polymers of acyclic aliphatic olefins using catalyst complexes comprising a single palladium metal center and a substituted tri-aryl ligand is disclosed. | 08-28-2008 |
| 20090062494 | Process for the Preparation of Polypropylene - The present invention relates to a process for the preparation of polypropylene using a catalyst system of low porosity, the catalyst system comprising an asymmetric catalyst, wherein the catalyst system has a porosity of less than 1.40 ml/g. | 03-05-2009 |
| 20090088542 | OLEFIN POLYMERIZATION CATALYSTS, THEIR SYNTHESIS AND USE - A catalyst system for the polymerization or copolymerization of α-olefins comprises a bis(imino)pyridyl complex of a transition metal on a support having an aluminum halide and/or an alkylaluminum halide chemically or physically bonded thereto. | 04-02-2009 |
| 20100010180 | Transition Metal Complexes Supported on Activating Support - The present invention discloses an active supported catalyst system comprising:
| 01-14-2010 |
| 20100041843 | Process for Preparing a Diene Elastomer, Such as a Polybutadiene - The present invention relates to a process for preparing a diene elastomer. The invention especially applies to the production of a polybutadiene with a high level of cis-1,4 linkages that has at the same time a Mooney viscosity ML (1+4) greater than or equal to 40, a polydispersity index less than 2.1 and a reduced cold flow and of a polyisoprene. | 02-18-2010 |
| 20100210799 | Polymerisation of Ethylene and Alpha-Olefins with Catalyst Systems based on Binam Derived Ligands - The present invention relates to the field of single site catalyst systems based on aromatic BINAM diamine ligands and suitable for oligomerising or polymerising ethylene and alpha-olefins. | 08-19-2010 |
| 20100240847 | TWO STAGE ACTIVATION OF OLIGOMERISATION CATALYST AND OLIGOMERISATION OF OLEFINIC COMPOUNDS IN THE PRESENCE OF AN OLIGOMERISATION CATALYST SO ACTIVATED - This invention relates to the oligomerisation of olefinic compounds in the presence of an oligomerisation catalyst activated in two stages by two catalyst activators According to the invention there is provided a process for activating an oligomerisation catalyst by contacting the catalyst with i) a first activator component selected from the group consisting of the aluminoxanes and a mixture of at least one aluminoxane and at least one organylaluminium compound, and ii) a second activator component which is an organylaluminium compound, the process being characterised therein that the oligomerisation catalyst is first contacted with one of the first activator component or second activator component, and the resulting mixture is thereafter contacted with the other of the first activator component or second activator component | 09-23-2010 |
| 20110152485 | Polymerisation Catalyst System based on Oxime-Ether Ligands - The present invention discloses metallic complexes based on oxime-ether ligand and their use in oligomerisation and in polymerisation of ethylene and alpha-olefins. | 06-23-2011 |
| 20110213109 | Mono-Indenyl Transition Metal Compounds and Polymerization Therewith - This invention relates to transition metal compounds, catalyst systems comprising said compounds and polymerization processes using such catalyst systems, where the transition metal compound is represented by the formula: | 09-01-2011 |
| 20110224391 | Pyridyldiamido Transition Metal Complexes, Production and Use Thereof - Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization to produce multimodal polyolefins. | 09-15-2011 |
| 20120116033 | Catalyst Components, Process for Their Preparation and Their Use as Catalyst Components in Polymerization of Olefins - Catalyst compositions having Cs symmetry and processes utilizing Cs symmetric catalyst components for the polymerization of ethylenically unsaturated monomers to produce polymers, including copolymers or homopolymers. Monomers, which are polymerized or copolymerized include ethylene, C | 05-10-2012 |
| 20120214957 | 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. | 08-23-2012 |
| 20140221588 | PROCESS FOR SYNTHESIS OF ETHYLENE POLYMERS - The present invention relates to a non-cryogenic process for the large scale synthesis of disentangled ultra high molecular weight polyethylene (DUHMWPE) polymers. The process comprises of the following steps:
| 08-07-2014 |
| 20140256893 | Reversible Chain-Transfer in Polyolefin Polymerization With Pyridyldiamide Catalysts - A process of producing ethylene a-olefin copolymers, especially ethylene block copolymers, comprising contacting ethylene and a C | 09-11-2014 |
| 20140357819 | MODIFIED PHOSPHINIMINE CATALYSTS FOR OLEFIN POLYMERIZATION - Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound. | 12-04-2014 |
| 20140378633 | Long-Bridged Salen Catalyst - Catalysts comprising long-bridged salen ligands comprising an imino-phenylene-alkylene-imino or an imino-napthalenylene-alkylene-imino bridged salen compound. Also, catalyst systems comprising the catalyst and an activator; methods to prepare the ligands, catalysts and catalyst systems; processes to polymerize olefins using the catalysts and/or catalyst systems; and the olefin polymers prepared according to the processes. | 12-25-2014 |
| 20150329651 | PROCESS FOR THE PREPARATION OF (CO) POLYMERS OF CONJUGATED DIENES IN THE PRESENCE OF A CATALYTIC SYSTEM COMPRISING A BIS-IMINE COMPLEX OF COBALT - Process for the preparation of (co) polymers of conjugated dienes which comprises polymerizing at least one conjugated diene in the presence of a catalytic system comprising at least one bisimine complex of cobalt having general formula (I) wherein: —n is 0 or 1; —Y represents a group —CR′R″— wherein R′ and R″, equal to or different from each other, represent a hydrogen atom; or a linear or branched C | 11-19-2015 |
| 20160108146 | A NOVEL TRANSITION METAL BASED PRO-CATALYST AND A PROCESS FOR ITS PREPARATION - The present disclosure relates to a transition metal based pro-catalyst represented by Formula I: wherein, the substituents have the meaning as defined in the specification. The present disclosure also relates to a process for preparing the transition metal based pro-catalyst represented by Formula I and the catalyst composition obtained therefrom. Further, the present disclosure relates to a process for polymerizing olefins by employing the catalyst composition comprising the transition metal based pro-catalyst represented by Formula I. | 04-21-2016 |
| 20220135599 | METAL-LIGAND COMPLEX, CATALYST COMPOSITION COMPRISING SAME FOR ETHYLENE BASED POLYMERIZATION, AND METHOD FOR PREPARING ETHYLENE-BASED POLYMER BY USING SAME - Provided are a metal-ligand complex, a catalyst composition for ethylene-based polymerization including the same, and a method for preparing an ethylene-based polymer using the same. Since the metal-ligand complex of the present invention in which a certain functional group is introduced to a certain position has high solubility and catalytic activity, the catalyst composition comprising the same for ethylene-based polymerization including the same may produce an ethylene-based polymer having excellent physical properties. | 05-05-2022 |
| 526163000 | Non-transition metal hydride or carbon to non-transition metal metal atom bond compound contains P, S, or N atom | 2 |
| 20090048408 | CATALYST COMPRISING HETEROLEPTIC ALUMINUM AND COBALT COMPOUNDS AND A METHOD OF PREPARING POLYBUTADIENE USING THE SAME - The present invention relates to a novel catalyst for diene polymerization comprising a heteroleptic single-molecule aluminum compound and a cobalt compound having a carboxyl group with a predetermined proportion and a method for preparing polybutadiene from 1,3-butadiene using a catalyst for diene polymerization. | 02-19-2009 |
| 20090203859 | Process for the polymerizaion of olefins - The present invention relates to a process for the polymerization of olefins, comprising the steps of introducing at least one olefin, at least one polymerization catalyst, at least one cocatalyst and at least one cocatalyst aid, and optionally a scavenger, into a polymerization reactor, and polymerizing the olefin, wherein the cocatalyst aid is a reaction product prepared separately prior to the introduction into the reactor by reacting at least one metal alkyl compound of group IIA or IIIA of the periodic system of elements and at least one compound (A) of the formula R | 08-13-2009 |
| 526165000 | Non-transition metal to carbon atom bond compound contains at least two atoms of same or different non-transition metal | 1 |
| 20130144019 | ETHYLENE/ALPHA-OLEFIN INTERPOLYMER SUITABLE FOR USE IN SHRINKAGE FILM APPLICATIONS, AND ARTICLES MADE THEREFROM - The instant invention provides an ethylene/alpha-olefin interpolymer suitable for use in shrinkage film applications, and articles made therefrom. The ethylene/alpha-olefin interpolymer according to the present invention has a CDBI of less than 60%, and comprises at least two fractions in crossfractionation of the ethylene/alpha-olefin interpolymer, eluting from 85° C. to 90° C. and from 90° C. to 95° C., comprising a weight fraction ratio of >0.68 and a molecular weight homogeneity index of greater than 0.65; wherein the weight fraction ratio is the ratio of the weight of polymer in each fraction divided by the weight of polymer eluting between 95° C. and 100° C. and the molecular weight homogeneity index is the ratio of the weight average molecular weight of the polymer in the fraction divided by the weight average molecular weight of the polymer eluting between 95° C. and 100° C., and wherein the ethylene/alpha-olefin interpolymer has a density in the range of 0.920 to 0.940 g/cm | 06-06-2013 |
| 526166000 | Group IVA (Ge, Sn, Pb) or Group VA (As, Sb, Bi) metal is bonded to hydrogen or carbon atom | 1 |
| 20090221773 | METHODS FOR DIRECT ATTACHMENT OF POLYMERS TO DIAMOND SURFACES AND DIAMOND ARTICLES - A method for forming a polymer on a substrate is disclosed. The method may include providing a substrate having a substrate surface, the substrate surface being at least partially hydrogen-terminated and reacting the substrate surface in a solution comprising at least one radical initiator and at least one monomer to form a polymer on the substrate surface. The monomer may comprise at least one of a monofunctional monomer and a polyfunctional monomer. A stationary phase for use in separation applications such as chromatography and solid-phase extraction is also disclosed. The stationary phase may include a plurality of diamond bodies and a polymeric compound covalently bonded to at least a surface portion of the plurality of diamond particles. | 09-03-2009 |
| 526167000 | Elemental non-transition metal atom | 1 |
| 20130018158 | CATALYST WITH LOW SURFACE AREA - Catalyst in form of solid particles, wherein the particles—have a specific surface area of less than 20 m | 01-17-2013 |
