Patents for C08F 4 - Polymerisation catalysts (50,749)
06/1999
06/22/1999US5914408 Olefin polymerization catalysts containing benzothiazole
06/22/1999US5914378 Anionic copolymerization of conjugated dienes and vinyl arenes in the presence of alkyl ethers of tetrahydropyranyl methanol
06/22/1999US5914377 Method for the production of diene rubbers in the gas phase
06/22/1999US5914376 Catalyst for the polymerization of olefins, process for the preparation thereof, and use thereof
06/22/1999US5914375 Catalyst composition for preparing high-syndiotactivity polystyrene from styrene or other aryl ethylene monomers and processes using the same
06/22/1999US5914291 Porous inorganic catalyst support
06/22/1999US5914289 Supported metallocene-alumoxane catalysts wherein the metallocene is bridged, has a hydrogenated indenyl or fluorenyl; a plurality of conformers are isolated on the support by reaction of the metallocene with the alumoxane
06/22/1999CA2225708A1 Solution catalyst having a bulky nitrogen ligand
06/17/1999WO1999029749A1 Elastomeric propylene polymers
06/17/1999WO1999029747A1 Butadiene polymer, process for the preparation of conjugated diene polymers, and catalyst
06/17/1999WO1999029744A1 Initiators for carbocationic polymerization of olefins
06/17/1999WO1999029743A1 Vinyl-containing stereospecific polypropylene macromers
06/17/1999WO1999029742A1 Propylene polymers incorporating macromers
06/17/1999WO1999029741A1 Unbridged monocyclopentadienyl metal complex catalyst and a process for polyolefin production
06/17/1999WO1999029740A1 Unbridged monocyclopentadienyl metal complex catalyst and a process for polyolefin production
06/17/1999WO1999029739A1 Reduced oxidation state transition metal compounds useful as olefin polymerization catalysts
06/17/1999WO1999029738A1 Catalyst compositions of enhanced productivity
06/17/1999WO1999029737A1 Polymerization catalyst systems, their use, their products and articles thereof
06/17/1999WO1999029736A1 Gas phase fluidized bed method and ethylene homo- and copolymers obtained using said method
06/17/1999WO1999029698A2 Method for producing di-organo alkaline-earth compounds
06/17/1999CA2313244A1 Catalyst compositions of enhanced productivity
06/17/1999CA2312092A1 Gas phase fluidized bed method and ethylene homo- and copolymers obtained using said method
06/17/1999CA2306352A1 Propylene polymers incorporating macromers
06/17/1999CA2304288A1 Vinyl-containing stereospecific polypropylene macromers
06/16/1999EP0922712A1 Novel electron donor containing compositions
06/16/1999EP0922711A1 Unbridged monocyclopentadienyl metal complex catalyst and a process for polyolefin production
06/16/1999EP0866813B1 Process for the preparation of polymerisates of vinyl aromatic compounds in a stage using double screw extruders
06/16/1999EP0830391B1 Method fo the preparation of a catalyst suitable for the polymerisation of an olefin
06/16/1999EP0792296B1 Process for the preparation of a rubber-like copolymer
06/16/1999CN1219941A Crystalline polypropylene, process for preparing same, polypropylene composition, and thermoformed article
06/16/1999CN1219940A Polyalphaolefin drag reducing agent composition and its preparing process
06/16/1999CN1043649C Olefin polymerization catalyst and its use
06/16/1999CN1043648C Gas phase polymerization of olefins
06/16/1999CA2225014A1 B-n heterocyclic ligands
06/15/1999US5912343 Tertiary amines containing side-chain organolithium structures and method for the preparation thereof
06/15/1999US5912313 Moldings, coatings, adhesives, membranes; oxidation, heat and chemical resistance; dielectrics, integrated circuits
06/15/1999US5912311 Olefin polymerization method comprising allyl-cycloalkadienyl dianions as catalyst precursors
06/15/1999US5912310 Recovery of metallocene complexes
06/15/1999US5912202 Olefin polymerization catalyst composition having increased activity
06/15/1999CA2122903C Process for producing polyolefin
06/10/1999WO1999028358A1 Catalyst composition comprising a reduced transition metal complex and a cocatalyst
06/10/1999WO1999028353A1 Olefin polymerization catalyst and method for polymerizing an olefin using the catalyst
06/10/1999WO1999028352A1 Supported polymerisation catalyst
06/10/1999DE19856076A1 Production of ethylene-alpha-olefin copolymers
06/10/1999DE19754504A1 Verfahren zur Herstellung von Erdalkalidiorganylverbindungen A process for preparing bisorganoalkaline earth metal compounds
06/10/1999DE19754380A1 Gasphasenwirbelschichtverfahren und danach erhältliche Ethylenhomo- und -copolymere Gas-phase fluidized-bed process and then sold ethylene homo- and copolymers
06/10/1999CA2312896A1 Supported polymerisation catalyst
06/10/1999CA2255801A1 Novel electron donors
06/09/1999EP0921157A1 Alkenyl-containing isobutylene group block copolymer and process for producing it
06/09/1999EP0921135A1 Solid catalytic components and catalysts for polymerization of olefins
06/09/1999EP0921134A1 Process for producing a shaped product
06/09/1999EP0920465A1 Elastomeric cycloolefinpolymer
06/09/1999EP0920463A1 Star polymers and process for producing the same
06/09/1999EP0920461A1 Components and catalysts for the polymerization of olefins
06/09/1999EP0920455A1 Group iv zwitterion ansa metallocene (zam) catalysts for alpha-olefin polymerization
06/09/1999EP0920432A1 Preparation and separation of rac and meso compound mixtures
06/09/1999EP0920403A1 Process for preparing cyclopentadienyl compounds
06/09/1999EP0888268A4 Method for the cyclotrimerization of alkynes in aqueous solutions
06/09/1999EP0787155B1 Catalysts and synthesis of high molecular weight amorphous polyolefins and recovery thereof
06/09/1999CN1219180A Process for preparation of creep-resistant polypropylene block copolymers
06/09/1999CN1219177A Olefin polymerization catalyst, olefin polymerization method, olefine polymer compositions and thermoformed articles
06/09/1999CN1218814A Catalyst for olefine polymerization and process for producing olefine polymers
06/09/1999CN1218785A Olefine polymerization or tripolymerization method
06/08/1999US5910553 Polymerizing (meth)acrylate and a monomer which forms free radicals upon thermal decomposition to give a rubber which is mixed with a third monomer, free radical polymerization; weather resistance, impact strength
06/08/1999US5910550 Preparation of medium molecular weight, highly reactive polyisobutene
06/08/1999US5910549 Reacting radically transferrable atoms or groups with a transition metal or transition metal compound and a stable nitroxide radical; long half-life radical initiators of addition polymerization for controlling polydispersity
06/08/1999US5910464 A coordination catalyst comprising a titanium, zirconium or hafnium mono- or biscyclopentadienyl compound and a reaction product of an alkyl aluminium and water
06/08/1999US5910463 Allows particle size and distribution to be controlled in a targeted manner
06/03/1999WO1999027007A1 Extrusion process for enhancing the melt strength of polypropylene
06/03/1999WO1999026989A1 Ethylene polymer compositions with norbornene comonomer
06/03/1999WO1999026987A1 Method for producing synthetic polymerizates with a very low residual monomer content, products produced according to this method and the use thereof
06/03/1999WO1999026986A1 PROCESS FOR THE PREPARATION OF POLYPROPYLENE-b-POLY(ETHYLENE-co-PROPYLENE)
06/03/1999WO1999026985A1 Polymerization catalyst for olefin monomers
06/03/1999WO1999026949A1 Schiff base derivatives of ruthenium and osmium olefin metathesis catalysts
06/03/1999CA2311506A1 Method for producing synthetic polymerizates with a very low residual monomer content, products produced according to this method and the use thereof
06/03/1999CA2310743A1 Extrusion process for enhancing the melt strength of polypropylene
06/02/1999EP0919574A1 Polymerization catalyst, process for the preparation of conjugated diene polymer in the presence thereof and polybutadiene thus prepared
06/02/1999EP0919573A1 Catalytic complexes based on lanthanides for the (co)polymerization of conjugated dienes
06/02/1999EP0919571A1 Catalyst composition comprising a reduced transition metal complex and a cocatalyst
06/02/1999EP0919557A1 Alkylaluminium complexes as cocatalysts
06/02/1999EP0918821A1 Polyolefin mixture containing poly(1-butene)
06/02/1999EP0918806A1 Process for producing diene polymer solutions in vinyl aromatic monomers
06/02/1999EP0918805A2 Anionic polymerisation process
06/02/1999EP0918803A2 Process for the preparation of olefinic polymers using supported metallocene catalyst
06/02/1999EP0918802A2 Components and catalysts for the polymerization of olefins
06/02/1999EP0852595B1 Mesoscopic organopolysiloxane particles with chemically bound metallic compounds
06/02/1999EP0821701B1 Novel catalyst for the gas-phase polymerisation of conjugated dienes
06/02/1999EP0728150B1 Process for the polymerization or copolymerization of ethylene
06/02/1999CN1218480A Copolymers of ethylene and geminally disubstituted olefins
06/02/1999CN1218453A Polymerization catalyst promoter
06/02/1999CN1218452A Synthesis of solid, powdery rare earth carboxylates by precipitation method
06/01/1999US5908905 Discoloration inhition; using peroxy mixture as promoters
06/01/1999US5908904 Rare earth compound; trialkylaluminum, dialkylaluminum hydride or alumoxane; another lewis acid; inert, particulate inorganic solid with a specific surface of greater than 10 m.sup.2 /g (bet) and a pore volume of 0.3 to 15 ml/g.
06/01/1999US5908903 Metallocene catalyst systems containing lewis bases
06/01/1999US5908872 In aqueous suspension in presenc eof peroxide
06/01/1999US5908594 Process of making polypropylene fiber
06/01/1999CA2110606C Process for the preparation of olefin polymer
06/01/1999CA1340578C Catalysts, method of preparing these catalysts and method of using said catalyst
05/1999
05/27/1999WO1999025749A1 Method for producing graft polymers
05/27/1999WO1999025743A1 Homogeneous polyethylenes and ethylene/propylene copolymer rubbers