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| Number | Title | Issue Date |
| 8076259 | Process for the preparation of catalyst paste and products thereof A process for the preparation of a catalyst paste comprising the following steps: a) obtaining a slurry in an organic solvent containing at least: a1) a support bearing functional groups; ... | 12/13/2011 |
| 7414005 | Preparation of catalyst compositions having improved activity The present invention relates to a process for preparing a catalyst composition for olefin polymerization, which comprises preparing a catalyst solid in a first step by bringing A) at least one support, B) at least one organic compound having at least one functional... | 08/19/2008 |
| 7300902 | Catalyst for polymerization of ethylene, preparation thereof and use of the same The present invention provides an ethylene polymerization catalyst. The present invention also provides a process for preparing the ethylene polymerization catalyst, comprising reacting powdered magnesium with an alkyl halide of formula RX in the presence of an ethe... | 11/27/2007 |
| 7288611 | Methods for preparing a rare-earth cis-1,4-polybutadiene rubber with a controlled molecular weight distribution Disclosed herein are a method for preparing a cis-1,4-polybutadiene with a controlled molecular weight distribution, comprising polymerizing butadiene monomers using a rare-earth catalyst system comprising: (a) at least one aliphat... | 10/30/2007 |
| 7262258 | Process for producing copolymer There are provided (I) a process for producing a copolymer of ethylene, an α-olefin having from 3 to 20 carbon atoms and optionally a polyene, which comprises the step of copolymerizing those monomers in a polymerization reactor by feeding the following components ... | 08/28/2007 |
| 7256151 | Solid catalyst component for α-olefin polymerization, process for producing catalyst therefor, and process for producing α-olefin polymer A solid catalyst component for α-olefin polymerization, which comprises a titanium atom, a magnesium atom, a halogen atom, a phthalic acid ester compound, and a 1,3-diether compound, wherein an amount of the 1,3-diether compound contained in the solid catalyst comp... | 08/14/2007 |
| 7256150 | Preparation of olefin polymerization catalyst component A process for producing a Gp 2/transition metal olefin polymerisation catalyst component, in which a Gp 2 complex is reacted with a transition metal compound so as to produce an oil-in-oil emulsion, the disperse phase containing the preponderance of the Gp 2 metal b... | 08/14/2007 |
| 7232869 | Catalyst composition for olefin polymerization A process for the preparation of a catalyst system includes the steps of combining a Lewis base, an organic compound having at least one functional group containing active hydrogen, and an organometallic component with a particulate support material to provide an in... | 06/19/2007 |
| 7220695 | Supported activator This invention relates to supported activators comprising the product of the combination of an ion-exchange layered silicate, an organoaluminum compound, and a heterocyclic compound, which may be substituted or unsubstituted. This invention further relates to cataly... | 05/22/2007 |
| 7214744 | Borate activator A catalyst system comprising (i) a bulky ligand catalyst compound; and (ii) a novel borate activator is active for olefin polymerization. The novel borate contains at least one chelating (divalent) ligand and contains at least one fluorine atom. Preferred borate act... | 05/08/2007 |
| 7211535 | Enhanced polyolefin catalyst The present invention provides a novel process for preparing a catalyst useful in gas phase polymerization of olefins wherein the physical properties of the polymer and the productivity of the catalyst can be altered depending on the sequence of addition of the cata... | 05/01/2007 |
| 7208436 | Catalyst components for the polymerization of olefins Catalyst components for the polymerization of olefins CH2═CHR, wherein R is hydrogen or a hydrocarbon radical having 1–12 carbon atoms, comprising Mg, Ti, Cl, OR groups, where R is a C1–C10 alkyl group optionally containing heteroatoms, and an ether... | 04/24/2007 |
| 7208435 | Solid catalyst component for olefin polymerization and catalyst A solid catalyst component for polymerization of olefins prepared by contacting (a) a dialkoxy magnesium compound, (b) a tetra-valent titanium halide, and (c) an electron donor compound of the formula R1R2C(COOR3)2 suspend... | 04/24/2007 |
| 7202190 | Supported catalyst system for the polymerization of olefins A supported catalyst system for polymerizing olefins comprising a) a support, b) a Lewis base of the formula M3R6R7R8 (I) wherein M3 is an element... | 04/10/2007 |
| 7193022 | Method of polymerization and copolymerization of ethylene Disclosed is a method of polymerization and copolymerization of ethylene, which is carried out in the presence of (a) a solid titanium complex catalyst prepared by the steps of (i) preparing a magnesium solution by contacting halogenated magnesium compounds with alc... | 03/20/2007 |
| 7172988 | Catalyst component for ethylene polymerization, a process for preparing thereof and catalyst comprising the same A catalyst component for ethylene polymerization, including an inorganic oxide support, and at least one alkyl metal compound, at least one halide, at least one dihydrocarbyl magnesium compound, at least one difunctional compound that reacts with the dihydrocarbyl m... | 02/06/2007 |
| 7153805 | Group III-B metal catalyst system The subject invention relates to a process for preparing a catalyst system that comprises the sequential steps of (I) reacting an organometalic compound that contains a metal from Group III-B of the Periodic System with an organoaluminum compound at a temperature wh... | 12/26/2006 |
| 7151071 | Method for preparation of a solid titanium catalyst for olefin polymerization The present invention relates to a method for preparing a solid titanium catalyst for olefin polymerization. The method for preparing a solid titanium catalyst for olefin polymerization according to the present invention comprises: preparing a magnesium compound sol... | 12/19/2006 |
| 7148302 | Catalyst for polymerization of norbornene This invention is based upon the discovery that a catalyst system which is comprised of (a) palladium or a palladium compound and (b) a fluorinated alcohol is effective for polymerizing norbornene-functional monomers into polynorbornene-functional polymers. It has b... | 12/12/2006 |
| 7141690 | Transition metal complexes, ligands, polymerization catalysts for olefins, and process for production of olefin polymers A transition metal complex represented by the formula (1): wherein M is a Group 4 transition metal, A is a Group 16 element, B is a Group 14 element, n is an integer of 0 or 1, R1, R2, R | 11/28/2006 |
| 7135532 | Process for producing solid catalyst component and catalyst for α-olefin polymerization, and process for producing α-olefin polymer There are disclosed a process for producing a solid catalyst component and a catalyst for α-olefin polymerization, and a process for producing an α-olefin polymer, wherein the process for producing a solid catalyst component comprises the steps of: ... | 11/14/2006 |
| 7101939 | Ethylene/α-olefin copolymer made with a non-single-site/single-site catalyst combination, its preparation and use An ethylene/α-olefin copolymer comprising a component produced by a non-single-site polymerization catalyst and a component produced by a single-site polymerization catalyst, its preparation and use are described. The copolymer has an α-olefin content of 5 to 20 p... | 09/05/2006 |
| 7084216 | Process for the polymerization of olefins The present invention relates to a process for homopolymerization of ethylene or copolymerization of ethylene with alpha-olefins by contacting ethylene or ethylene and alpha-olefin with a catalyst composition comprising: (a) a solid catalyst precursor comprising at ... | 08/01/2006 |
| 7081505 | Activating organometallic composition for the (co) polymerization of alpha-olefins comprising fluorinated cyclopentadienyl compounds An organometallic composition which can be used as activating component in a metallocene catalyst for the (co)polymerization of α-olefins, comprises: (A) a fluorinated di-unsaturated cyclic compound, having a relatively acid hydrogen atom, (B) an organometallic com... | 07/25/2006 |
| 7071138 | Solid catalyst component for olefin polymerization, catalyst for olefin polymerization and process for producing olefin polymer A solid catalyst component for olefin polymerization in which the molar ratio of residual alkoxy groups to supported titanium is 0.60 or less is obtained by reacting the following compound (a1) with the following compound (b1) at a hydroxyl group/magnesium molar rat... | 07/04/2006 |
| 7060764 | Method for polymerization and copolymerization of ethylene A method for polymerization and copolymerization of ethylene is disclosed. The polymerization is carried out in the presence of a preactivated titanium solid complex catalyst supported on a carrier containing magnesium. The resulting polymers have the advantage of h... | 06/13/2006 |
| 7026265 | Catalyst component comprising magnesium, titanium, a halogen and an electron donor, its preparation and use Process for the preparation of a particular olefin polymerisation catalyst component including magnesium dihalide, titanium tetrahalide and a carboxylic acid ester, in which the precursors of its constituents are reacted in solution from which the component is preci... | 04/11/2006 |
| 7022783 | Group III-B metal catalyst system The subject invention relates to a technique for synthesizing rubbery non-tapered, random, copolymers of 1,3-butadiene and isoprene. These rubbery copolymers exhibit an excellent combination of properties for utilization in tire sidewall rubber compounds for truck t... | 04/04/2006 |
| 7015169 | Catalyst systems of the ziegler-natta type and their preparation The present invention relates to catalyst systems of the Ziegler-Natta type, to a process for preparing them, to their use for the polymerization of olefins and to ethylene copolymers which can be prepared using this catalyst system. ... | 03/21/2006 |
| 7005399 | Catalyst for polymerization of olefins An olefin polymerization catalyst comprising: (A) a solid catalyst component prepared by contacting (a) a dialkoxyl magnesium, (b) a tetra-valent titanium halide, and (c) a phthalic acid diester in (d) an aromatic hydrocarbon having a boiling point in the range of 5... | 02/28/2006 |
| 6992034 | Catalyst component for olefin polymerization A solid catalyst component useful for the (co)-polymerization of olefins is disclosed. The catalyst component is prepared by reacting an activated magnesium halide composite support with a halogenized transition metal compound and a chelating diamide compound in the... | 01/31/2006 |
| 6989342 | Catalyst for polymerization and copolymerization of ethylene A solid titanium complex catalyst for polymerization and copolymerization of ethylene is prepared by the process comprising: (1) preparing a magnesium solution by reacting a halogenated magnesium compound with an alcohol; (2) reacting the magnesium solution with a p... | 01/24/2006 |
| 6964798 | Multi-layered polymer based thin film structure for medical grade products A multiple layer structure comprising a first and a second skin layer, each skin layer composed of a polypropylene containing polymer, and a radio frequency (“RF”) susceptible layer adhered to and between the first and second skin layers. The RF layer has a firs... | 11/15/2005 |
| 6958306 | Activated catalyst systems from substituted dialuminoxane complexes A catalyst composition and method for preparing a supported catalyst system for olefin polymerization is provided. In one aspect, the catalyst composition includes a reaction product of a dialuminoxane and a halogen substituted aryl borane, wherein the reaction take... | 10/25/2005 |
| 6956002 | Process for polymerization of olefins A catalyst for olefin polymerization, comprising: a solid catalyst component comprising [A] a solid component having substantially no hydroxyl group, [B] a compound of a transition metal selected f... | 10/18/2005 |
| 6930071 | Ziegler-natta catalyst for polyolefins A Ziegler-Natta type catalyst component can be produced by a process comprising contacting a magnesium dialkoxide compound with a halogenating agent to form a reaction product A, and contacting reaction product A with a first, second and third halogenating/titanatin... | 08/16/2005 |
| 6916759 | Method for producing a catalyst for homo-or co-polymerization of ethylene A method of making an olefin polymerization catalyst is disclosed. The method involves contacting a magnesium halide compound with an alcohol, adding a mineral oil to the product, reacting this product with a hydroxylated ester and an alkoxy silane, then adding a ti... | 07/12/2005 |
| 6914028 | Method for producing a catalyst for homo-or co-polymerization of ethylene A method of making an olefin polymerization catalyst is disclosed. The method first combines a magnesium halide with an alcohol, then adds a hydroxylated ester and a silicon alkoxide, followed by a titanium compound and another silicon compound to result in a solid ... | 07/05/2005 |
| 6903041 | Solid catalyst component and catalyst for olefin polymerization, and process for producing olefin polymer There are provided; (i) a solid catalyst component obtained by contacting a trivalent titanium atom-containing solid catalyst component precursor (C) with a halogeno compound (A) of the 13 or 14 group of elements in the periodic ta... | 06/07/2005 |
| 6881696 | Catalyst for polymerization and copolymerization of ethylene A solid titanium complex catalyst for polymerization and copolymerization of ethylene is prepared by the process comprising: (1) preparing a magnesium solution by reacting a halogenated magnesium compound with an alcohol; (2) reacting the magnesium solution with an ... | 04/19/2005 |
