Patents for C08F 110 - Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond (14,255)
06/1998
06/23/1998US5770663 Metallocene preparation and use
06/23/1998US5770540 Chlorine, magnesium, and titanium compounds on support; molecular weight control
06/17/1998EP0848022A1 Production of Ethylene/Butene copolymers with a single metallocene catalyst and a single monomer
06/17/1998EP0804490B1 Borabenzene based olefin polymerization catalysts
06/17/1998CN1038754C Process for preparing ziegler-natta type catalyst with granular carrier, and the use thereof
06/16/1998US5767215 Coarse-grained polyolefin, its production method and a catalyst used in the method
06/16/1998US5767209 Catalyst compositions and process for preparing polyolefins
06/16/1998US5767034 Olefin polymerization catalyst with additive comprising aluminum-silicon composition, calixarene derivatives or cyclodextrin derivatives
06/16/1998US5767033 Transition metal compound and olefin polymerization catalyst component comprising said compound
06/16/1998US5767032 Catalyst for olefin polymerization and a method for the manufacture thereof
06/16/1998CA2131298C Polymerization process
06/10/1998EP0846706A1 Olefin polymerization catalyst and preparation process of polyolefin using the same
06/10/1998EP0846696A1 Catalyst for polymerization of alpha-olefins
06/10/1998EP0846132A1 Catalyst system for the preparation of a rubbery copolymer
06/10/1998EP0775163B1 Supported olefin polymerization catalyst
06/10/1998CN1184489A Method of preparing catalyst components
06/10/1998CN1184486A Method for preventing fouling & sheeting in gas phase reactors
06/10/1998CN1184120A Process for polymerization of alpha-olefin, poly-alpha-olefin prepared thereby, and aminosilane compound usable as constituent of catalyst for process
06/10/1998CN1184118A Process and metallocene catalyst for producing syndiotactic polymers
06/10/1998CN1038684C Catalyst system and its application in olefin polymerization
06/09/1998US5763547 Supported catalyst complexes for olefin in polymerization
06/09/1998US5763542 Process for the preparation of an olefin polymer using specific metallocenes
06/09/1998US5763349 Mixing a neutral halogenated transition metallocene with a catalyst support and impregnating with a solution of an ionizing agent; storage stability; high molecular weight polymers having broad molecular weight distribution
06/04/1998WO1998023799A1 Fibers and fibrous moldings made by using the same
06/04/1998DE19752860A1 Polypropylene material with an improved balance of properties
06/03/1998EP0495099B1 Olefin copolymer and production thereof
06/03/1998CN1183788A Process and catalyst for hono- and copolymerization of olefins
06/03/1998CN1183418A Polypropylene and biaxially oriented film produced with said polypropylene
06/02/1998US5759469 Method for preparing molded articles of syndiotactic polypropylene
06/02/1998CA2021410C Process for olefin polymerization
05/1998
05/28/1998WO1998022515A1 Method for producing initiators for anionically initiated polymerization of monomers having at least one ethylenically unsaturated group
05/28/1998WO1998022514A1 Process for making propylene homo or copolymers
05/28/1998WO1998022486A1 Heterocyclic metallocenes and polymerization catalysts
05/27/1998EP0844260A1 Olefin polymerization catalyst, prepolymerized catalyst, and olefin polymerization process
05/27/1998EP0844259A1 Alpha-olefin polymers, alpha olefin-polymerizing catalyst and process for producing alpha-olefin polymers
05/27/1998CN1182749A Olefines polymerizing
05/27/1998CN1182748A Olefines polymerizing catalyst, pre-polymerized catalyst and olefines polymerizing process
05/26/1998US5756660 Using coordination catalyst
05/26/1998US5756627 High molecular weight homopolymers and copolymers of ethene
05/26/1998US5756621 2-oxazolinyl-terminated polymers and oligomers useful as compatibilizers
05/26/1998US5756614 Polypropylene and other olefin polymer thermoplastic elastomers, novel catalyst for preparing the same and method of preparation
05/26/1998US5756613 Catalyst support and catalyst for the polymerization of α-olefins; processes for obtaining them and polymerization of α-olefins in presence of the catalyst
05/26/1998US5756611 Reaction product of an alcohol and an organometallic compound; metallocenes
05/26/1998US5756607 Preparation of polymers of ethylene by suspension polymerization
05/22/1998WO1998021248A2 Process for the preparation of olefinic polymers using supported metallocene catalyst
05/20/1998CN1182437A Multi-phase polymerization process
05/20/1998CN1182093A Carried compound
05/19/1998US5753785 Production of E-B copolymers with a single metallocene catalyst and a single monomer
05/14/1998WO1998020054A1 Process for producing polyethylene of very high molecular weight and method for activating the catalyst support
05/14/1998DE19646848A1 Continuous manufacture of elastic polypropylene@ by polymerisation of propylene in liquid propylene
05/14/1998DE19645939A1 Verfahren zur Herstellung von ultrahochmolekularem Polyethylen und Methode zur Aktivierung des Katalysatorträgers A process for preparing ultrahigh molecular weight polyethylene and method for the activation of the catalyst support
05/13/1998EP0841349A2 Catalyst for alpha-olefin polymerization and production of poly-alpha-olefin therewith
05/13/1998EP0841348A2 Process for polymerization of alpha-olefin, a poly-alpha-olefin prepared thereby, and anaminosilane compound usable as the constituent of catalyst for the process
05/13/1998EP0743960B1 Dual donor catalyst system for the polymerization of olefins
05/13/1998CN1181388A Polypropylene resin and method for producing same
05/12/1998US5750813 Process for the preparation of polyolefin waxes
05/06/1998EP0840057A1 Solvent free oil suluble drag reducing polymer suspension
05/06/1998EP0839837A1 Process for the continuous production of elastic polypropylene
05/06/1998EP0839836A1 Catalytic systems for the polymerisation and copolymerisation of alpha-olefins
05/06/1998EP0839835A1 Organometallic catalysts for the polymerisation and copolymerisation of alpha-olefins
05/06/1998EP0839834A1 Catalyst systems for the polymerization and copolymerization of alpha-olefins
05/06/1998EP0839833A2 Catalyst systems for the polymerization and copolymerization of alpha-olefins
05/06/1998CN1181089A 'Alpha'-olefines and olefin polymers and processes therefor
05/05/1998US5747621 Reactor blend polypropylene, process for the preparation thereof and process for preparing metallocene ligands
05/05/1998US5747620 Ethylene copolymer, thermoplastic resin composition containing same, and process for preparing ethylene copolymer
05/05/1998US5747594 Polyolefin compositions exhibiting heat resistivity, low hexane-extractives and controlled modulus
05/05/1998US5747549 Polypropylene resin for moldings
05/05/1998US5747407 Method of making a Ziegler-Natta olefin polymerization catalyst
05/05/1998US5747405 Catalyst compositions and process for preparing polyolefins
05/05/1998US5747404 Polymerization catalysts on polysiloxane supports with cyclopentane complexes with zirconium, titanium or hafnium for polymerization catalysts
04/1998
04/29/1998EP0838479A1 Process for producing polyolefins
04/29/1998EP0838476A1 Solid precursor of a catalyst system for polymerization of olefins, process for its preparation and catalytic system containing said precursor and process for the polymerization of olefins using said catalyst system
04/29/1998EP0838261A2 Process for the production of a supported chromium catalyst
04/28/1998US5744666 Process for preparing an alkynyl fulvene group containing compound and said compound
04/28/1998US5744555 Process for the synthesis of elastomeric polypropylene
04/28/1998US5744530 Granular calcium carbonate for use as a direct additive for thermoplastics
04/23/1998WO1998016311A1 Phenolate constrained geometry metallocene olefin polymerization catalyst, method of making, and method of using
04/22/1998EP0837068A2 Stereorigid metallocenes
04/22/1998EP0836608A1 Metallocenes with silyl-substituted bridges and their use for olefin polymerization
04/22/1998CN1179430A Solid rigid metallic C5H6 compound
04/21/1998US5741868 Olefin polymerization process by using a substituted indenyl containing metallocene catalyst
04/15/1998EP0835887A2 Procatalyst for ethylene polymer production, method for its preparation and use
04/15/1998EP0835269A1 Olefin polymerization process
04/14/1998US5739366 Transition metal compound containing substituted indenyl rings
04/14/1998US5739226 Solid catalytic component containing zirconium and cycloalkadienyl groups, process for producing it and process for the polymerization of olefins in its presence
04/14/1998US5739225 Process for preparing olefin polymer, and ethylenic polymer
04/14/1998US5739224 Contacting silylated silica support with magnesium halide or alkyl halide, contacting with magnesium dialkyl in presence of lewis base, halogenating, titanating
04/14/1998US5739220 Method of olefin polymerization utilizing hydrogen pulsing, products made therefrom, and method of hydrogenation
04/08/1998EP0834519A1 Catalyst for polyolefin production and process for producing polyolefin
04/08/1998EP0624168B1 ETHYLENE POLYMER HAVING AN INTRINSIC VISCOSITY OF AT LEAST 4 dl/g AND A METHOD FOR THE PREPARATION THEREOF
04/07/1998US5736613 Highly rigid propylenic resin and blow molded article made therefrom
04/07/1998US5736492 Alkenyl-substituted dicarboxylic derivatives
04/07/1998CA2033364C Olefin polymerization catalyst and process for the polymerization of olefins
04/01/1998EP0832866A2 Process for the preparation of methylene-bridged biscyclopentadienyl compounds
04/01/1998EP0832136A1 Polymer supported catalyst for olefin polymerization
04/01/1998EP0832089A2 Transition metal catalyst based on bidentate ligands containing pyridine or quinoline moiety
03/1998
03/31/1998US5733990 Catalyst for producing polyolefin and process for producing polyolefin
03/31/1998US5733989 Prepolymerized catalyst composition, a process for the preparation thereof, and a process for polymerizing α-olefins
03/31/1998US5733979 Polymerization catalysts of titanium chloride, aluminum compound coordination complexes with porosity
03/31/1998US5733834 Organic carrier supported metallocene catalyst for olefin polymerization