| Patent application number | Description | Published |
|---|
| 20080214759 | Polyolefins Prepared From Two New Single Site Catalyst Components In Single Reactor - The present invention discloses the use of two different new single site catalyst components based on different metals for preparing polymers having a broad or multimodal molecular weight distribution in a single reactor. | 09-04-2008 |
| 20080249266 | Polymerisation Catalyst System Based on Monooxime Ligands - The present invention discloses active oligomerisation and polymerisation catalyst systems based on dioxime ligands. | 10-09-2008 |
| 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 |
| 20080300371 | POLYOLEFIN PRODUCTION - Use of a metallocene compound of general formula Ind | 12-04-2008 |
| 20080306226 | Polymerization Catalyst System Based on Monooxime Ligands - The present invention discloses active oligomerisation and polymerisation catalyst systems based on monooxime ligands. | 12-11-2008 |
| 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 |
| 20090042720 | Activating supports for metallocene catalysis - The present invention relates to a process for preparing an activating support for metallocene complexes in the polymerisation of olefins comprising the steps of: I) providing a support prepared consisting in particles formed from at least one porous mineral oxide; II) optionally fixing the rate of silanols on the surface of the support; III) functionalising the support with a solution containing a fluorinated functionalising agent; IV) heating the functionalised and fluorinated support of step c) under an inert gas and then under oxygen; V) retrieving an active fluorinated support. That activating support is used to activate a metallocene catalyst component for the polymerisation of olefins. | 02-12-2009 |
| 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 |
| 20090105068 | POLYOLEFIN PRODUCTION - Provided is a process for producing a polyolefin having a multimodal molecular weight distribution, which process comprises:
| 04-23-2009 |
| 20090118447 | Impact Copolymer in Single Reactor - This invention relates to the field of impact copolymers and their preparation in a single reactor. | 05-07-2009 |
| 20090156761 | Fluorinated transition metal catalysts and formation thereof - 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 | 06-18-2009 |
| 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 |
| 20090203930 | PROCESS FOR DISPERSING FUNCTIONAL MOLECULES ON THE SURFACE OF A SUPPORT AND SUPPORT MADE BY THIS PROCESS - The present invention discloses a method for separating tethered functional organo-chains, through their dilution with tethered non-functional organo-chains, in the presence of soluble molecular derivatives that are able to self-assemble and to interact with the functional organo-silane. | 08-13-2009 |
| 20090203948 | Single site catalyst component with metal containing chelate backbone - The present invention discloses a chelate ligand wherein the backbone contains a metal. | 08-13-2009 |
| 20090234085 | Nickel complexes in heterogeneous - The present invention discloses a supported catalyst system that comprises a supported Keim-type nickel complex. It further discloses a method for preparing said supported catalyst system and its use for homo- or co-polymerising polar and non polar monomers. | 09-17-2009 |
| 20090270569 | ACTIVATORS FOR THE HOMO-OR CO-POLYMERISATION OF ALPHA-OLEFINS WITH HOMOGENEOUS METALLOCENE CATALYST SYSTEMS - The present invention discloses a class of metallocene catalyst systems suitable for the homogeneous polymerisation of ethylene or alpha olefins that does not require the addition of aluminoxane or perfluorophenylborates as activating agent. | 10-29-2009 |
| 20100010180 | Transition Metal Complexes Supported on Activating Support - The present invention discloses an active supported catalyst system comprising:
| 01-14-2010 |
| 20100016528 | Ethylene and alpha-olefins polymerisation catalyst system based on fluorenyl ligand - The present invention discloses a catalyst system comprising a cyclopentadienyl-£luorenyl-based catalyst component wherein the cyclopentadienyl is di-substituted and the fluorenyl is monosubstituted. It also discloses its method of preparation and its use in the polymerisation of ethylene. | 01-21-2010 |
| 20100029472 | Fluorinated Alkoxy-Imino Catalyst Components - This invention relates to fluorinated alkoxy-imino metallic complexes and their use in catalyst systems for the polymerisation or oligomerisation of ethylene and alpha-olefins. | 02-04-2010 |
| 20100144515 | FLUORINATED DIALKOXY-DIIMINO CATALYST COMPONENTS - This invention relates to the fluorinated dialkoxy-diimine metal complexes and their use in catalyst system for the polymerisation or oligomerisation of ethylene and alpha-olefins. | 06-10-2010 |
| 20100179055 | ACTIVATING SUPPORTS WITH NON-METALLOCENE COMPLEXES - The present invention discloses an active supported catalyst system comprising: a) an iron-based non-metallocene catalyst component; b) an alkylating agent; c) an activating functionalised and fluorinated support. It also discloses a method for preparing said active supported catalyst system and its use in the polymerisation of olefins. | 07-15-2010 |
| 20110003953 | Carbon-Bridged Cyclopentadienyl-Fluorenyl Ligands - The present invention discloses efficient methods for preparing substituted cyclopentadienyl-fluorenyl catalyst components having a mono-carbon bridge. | 01-06-2011 |
| 20110009683 | SYNTHESIS OF SUBSTITUTED FLUORENE LIGANDS - The present invention describes a cost-efficient method for preparing di-substituted fluorenes in high yield. | 01-13-2011 |
| 20110098424 | Preparation of styrene homopolymers and styrene-ethlyene copolymers - The present invention discloses copolymers of styrene and ethylene with highly syndiotactic styrene blocks prepared with of a catalyst system comprising a metallocene catalyst component of the general formula (I): (Flu-R″—C p)M(n | 04-28-2011 |
| 20110105704 | Sterically Emcumbered Bidentate and Tridentate Naphthoxy-Imine Metallic Complexes - The present invention discloses post-metallocene complexes based on sterically encumbered bi- and tri-dentate naphthoxy-imine ligands. It also relates to the use of such post-metallocene complexes in the oligomerisation of ethylene to selectively prepare vinyl-end capped linear alpha-olefins. | 05-05-2011 |
| 20110112273 | Group 3 Post-Metallocene Complexes Based on Bis(Naphthoxy)Pyridine and Bis(Naphthoxy)ThioPhene Ligands for the Ring-Opening Polymerisation of Polar Cyclic Monomers - The present invention relates to the use of group 3 post-metallocene complexes based on sterically encumbered bis(naphthoxy)pyridine and bis(naphthoxy)thiophene ligands in the ring-opening polymerisation of polar monomers such as, for examples, lactones, lactides, cyclic carbonates. | 05-12-2011 |
| 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 |
| 20110178258 | Supported Ionic Liquids or Activating Supposrts - The present invention relates to the covalent anchorage of non-coordinating anions on mineral supports to prepare supported ionic liquids and to their use as activating supports for the polymerisation of ethylene and alpha-olefins. The invention also discloses the concomitant covalent anchorage of zwitterionic systems containing both the non-coordinating anion and the counter cation parts of the ionic liquids and of the activating supports. | 07-21-2011 |
| 20110251400 | Preparation of Dphenyl-Bridged Substituted Cyclopentadienyil-Fluorenyl Ligands - The present invention discloses efficient methods for preparing substituted cyclopentadienyl-fluorenyl catalyst components having a diphenyl bridge. | 10-13-2011 |
| 20110306739 | PREPARATION OF LONG-CHAIN BRANCHED ISOTACTIC POLYPROPYLENE - The present invention discloses a method for preparing long-chain-branched isotactic polypropylene by first oligomerising propylene with a suitable oligomerisation catalyst system and then copolymerising propylene and the oligomer obtained in situ with a mono-aryl-substituted methylene bridged catalyst system. | 12-15-2011 |
| 20110306741 | SYNTHESIS OF SUBSTITUTED TETRAHYDROINDENYL COMPLEXES - This invention relates to the synthesis of substituted tetrahydroindenyls and the use of the synthesised complexes in the homo- and co-polymerisation of ethylene and alpha-olefins. | 12-15-2011 |
| 20110312489 | Fluorinated Alkoxy-Imino Catalyst Components - This invention relates to fluorinated alkoxy-imino metallic complexes and their use in catalyst systems for the polymerisation or oligomerisation of ethylene and alpha-olefins. | 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 |
| 20120136124 | PROCESS TO PREPARE DI- AND MULTIBLOCK COPOLYMERS - The present invention discloses a process for preparing di-, tri, or multi-block polyester/polycarbonate (co)polymers by ring-opening polymerisation in the presence of a non-toxic catalyst system in combination with either a linear monohydroxy HO—PC—OR, or a linear telechelic dihydroxy HO—PC—OH, or a star polyhydroxy R—(PC—OH)n end-capped polyester/polycarbonate. | 05-31-2012 |
| 20120245021 | Polyolefins Prepared from a Metallocene and a New Single Site Catalyst Components in a Single Reactor - The present invention discloses a catalyst system based on a metallocene catalyst component and a new single site catalyst component for the production in a single reactor of improved polyolefins having a bimodal molecular weight distribution. | 09-27-2012 |
| 20120271013 | Polyolefin Production - Use of a metallocene compound of general formula Ind | 10-25-2012 |
| 20120289668 | LDPE-Like Polymers With Bisindenyl-Based Ligands Having Different Rings - The present invention discloses a catalyst system that comprises several bridged pseudo-bisindenyl components that are structurally different in order to prepare polymers having a broad molecular weight distribution. | 11-15-2012 |
| 20120289670 | Fluorinated Alkoxy-Imino Catalyst Components - This invention relates to fluorinated alkoxy-imino metallic complexes and their use in catalyst systems for the polymerisation or oligomerisation of ethylene and alpha-olefins. | 11-15-2012 |
| 20120316298 | Linear Low Density Polymers Having Optical and Processing Capabilities of Low Density Polyethylene - The present invention discloses a catalyst system that comprises several bridged bis- or bis-tetrahydro-indenyl components having different substitution patterns in order to prepare polymers having a broad molecular weight distribution. | 12-13-2012 |
| 20130237405 | Metallocene and a New Single Site Catalyst Component - The present invention discloses a catalyst system based on a metallocene catalyst component and a new single site catalyst component for the production in a single reactor of improved polyolefins having a bimodal molecular weight distribution. | 09-12-2013 |
| 20130281681 | Group 3 Post-Metallocene Complexes Based on Bis(Naphthoxy)Pyridine and Bis(Naphthoxy)ThioPhene Ligands for the Ring-Opening Polymerisation of Polar Cyclic Monomers - The present invention relates to the use of group 3 post-metallocene complexes based on sterically encumbered bis(naphthoxy)pyridine and bis(naphthoxy)thiophene ligands in the ring-opening polymerisation of polar monomers such as, for examples, lactones, lactides, cyclic carbonates. | 10-24-2013 |
| 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 |
| 20150018504 | 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. | 01-15-2015 |
