Patent application number | Description | Published |
20090005526 | Tridentate Metal Catalyst for Olefin Polymerization - In accordance with the present invention, there is provided a transition metal olefin polymerization catalyst component characterized by the formula: | 01-01-2009 |
20090076315 | PROCESS FOR THE PREPARATION OF SUBSTITUTED FLUORENES - Methods for the preparation of fluorenyl-type ligand structures and substituted fluorenyl groups which may be employed in metallocene-type olefin polymerization catalysts. There is provided a 2,2′-dihalogen-diphenylmethylene having a methylene bridge connecting a pair of phenyl groups. Each phenyl group has a halogen on a proximal carbon atom relative to the methylene bridge. The halogenated diphenylmethylene is reacted with a coupling agent comprising a Group 2 or 12 transition metal in the presence of a nickel or palladium-based catalyst to remove the halogen atoms from the phenyl groups and couple the phenyl groups at the proximal carbon atoms to produce a fluorene ligand structure. The coupling agent may be zinc, cadmium or magnesium and the catalyst may be a monophosphene nickel complex. The halogenated diphenylmethylene may be an unsubstituted ligand structure or a monosubstituted or disubstituted ligand structure. The halogenated diphenylmethylene may be monosubstituted with a tertiary butyl group or may be a dialkyl diphenylmethylene having alkyl substituents at the directly distal positions of the phenyl groups relative to the methylene bridge. | 03-19-2009 |
20090111955 | Fluorinated Impregnated Catalyst Systems and Methods of Forming the Same - Methods of forming supported catalyst systems, supported catalyst systems and polymerization processes utilizing the supported catalyst systems are described herein. The methods generally include providing an inorganic support material and contacting the inorganic support material with a support solvent to form a support solution. The methods further include contacting the support solution with a fluorine containing compound represented by the formula AlF | 04-30-2009 |
20090163688 | FLUORENYL CATALYST COMPOSITIONS AND OLEFIN POLYMERIZATION PROCESS - An olefin polymerization process comprising contacting one or more olefins and a catalyst component in a reaction zone under suitable reaction conditions to form a polyolefin, wherein the catalyst component is characterized by the formula: | 06-25-2009 |
20110313118 | FLUORINATED IMPREGNATED CATALYST SYSTEMS AND METHODS OF FORMING THE SAME - Methods of forming supported catalyst systems, supported catalyst systems and polymerization processes utilizing the supported catalyst systems are described herein. The methods generally include providing an inorganic support material and contacting the inorganic support material with a support solvent to form a support solution. The methods further include contacting the support solution with a fluorine containing compound represented by the formula AlF | 12-22-2011 |
20120095174 | Fluorinated Catalyst Systems and Methods of Forming the Same - Supported catalyst systems and methods of forming the same are described herein. In one specific embodiment, the methods generally include providing an inorganic support material and contacting the inorganic support material with an aluminum fluoride compound represented by the formula AlF | 04-19-2012 |
20120095175 | PREPARATION AND USE OF TETRASUBSTITUTED FLUORENYL CATALYSTS FOR POLYMERIZATION OF OLEFINS - Catalyst compositions and processes for the polymerization of ethylenically unsaturated monomers to produce polymers, including copolymers or homopolymers. The polymerization catalyst characterized by the formula B(FluL)MQ | 04-19-2012 |
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 |
20120309914 | Fluorinated Impregnated Catalyst Systems and Methods of Forming the Same - Methods of forming supported catalyst systems, supported catalyst systems and polymerization processes utilizing supported catalyst systems are described. The methods include providing an inorganic support material, contacting the inorganic support material with a support solvent to form a support solution, and contacting the support solution with a fluorine containing compound (AlF | 12-06-2012 |
20130237719 | Preparation and Use of Tetrasubstituted Fluorenyl Catalysts for Polymerization of Olefins - Catalyst compositions and processes for the polymerization of ethylenically unsaturated monomers to produce polymers, including copolymers or homopolymers. Such monomers include ethylene, C | 09-12-2013 |