Patent application number | Description | Published |
20090186995 | Production of Propylene-Based Polymers - In a process for producing a propylene-based olefin homopolymer or copolymer, a monomer composition comprising propylene is contacted with a polymerization catalyst system under homogeneous polymerization conditions (such as solution, supersolution or supercritical conditions), wherein the polymerization catalyst system includes an activator and a bridged bis-indenyl transition metal (group 4) compound substituted with a carbazole (unsubstituted or substituted) at the 4 position. | 07-23-2009 |
20100113717 | Process For Producing Substituted Metallocene Compounds For Olefin Polymerization - A process for producing a substituted metallocene compound comprises reacting a first compound with a transfer-agent, wherein the first compound comprises a complex of a transition metal atom selected from Group 3, 4, 5 or 6 of the Periodic Table of Elements, or a lanthanide metal atom, or actinide metal atom and at least one monocyclic or polycyclic ligand that is pi-bonded to M and is substituted with at least one halogen or sulfonate substituent and the transfer-agent comprises a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, or germylcarbyl radical capable of replacing said at least one halogen or sulfonate substituent of said first compound under reaction conditions. | 05-06-2010 |
20110098425 | Catalyst Compounds and Use Thereof - This invention relates to Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly a-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided. | 04-28-2011 |
20110098427 | Catalyst Compounds And Use Thereof - Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands are provided. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly α-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided. | 04-28-2011 |
20110098429 | Catalyst Compounds and Use Thereof - This invention relates to Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly a-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided. | 04-28-2011 |
20110098430 | Catalyst Compounds and Use Thereof - This invention relates to Group 4 catalyst compounds containing di-anionic tridentate nitrogen/oxygen based ligands. The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly α-olefins, or other unsaturated monomers. Systems and processes to oligomerize and/or polymerize one or more unsaturated monomers using the catalyst compound, as well as the oligomers and/or polymers produced therefrom are also provided. | 04-28-2011 |
20110098431 | Catalyst Compounds and Use Thereof - This invention relates to Group 4 dialkyl compounds supported by a pyridyl-amido-aryl (“PAA”), an anisole-amido-aryl (“AAA”), a phenoxy-amido-pyridyl (“PAPY”), an anisole-amido-phenoxy (“AAP”) or a anisole-amido-phenoxy (“AAP”) tridentate ligand. Such compounds can polymerize olefins, such as ethylene. | 04-28-2011 |
20110213109 | Mono-Indenyl Transition Metal Compounds and Polymerization Therewith - This invention relates to transition metal compounds, catalyst systems comprising said compounds and polymerization processes using such catalyst systems, where the transition metal compound is represented by the formula: | 09-01-2011 |
20110288249 | Halogen Substituted Heteroatom-Containing Metallocene Compounds for Olefin Polymerization - Halogen substituted metallocene compounds are described and comprise one or more monocyclic or polycyclic ligands that are pi-bonded to the metal atom and include at least one halogen substituent directly bonded to an sp | 11-24-2011 |
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 |
20120071616 | Pyridyldiamido Transition Metal Complexes, Production And Use Thereof - Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization. | 03-22-2012 |
20120202956 | Halogen Substituted Heteroatom-Containing Metallocene Compounds for Olefin Polymerization - Halogen substituted metallocene compounds are described and comprise one or more monocyclic or polycyclic ligands that are pi-bonded to the metal atom and include at least one halogen substituent directly bonded to an sp | 08-09-2012 |
20130276519 | Methods of Separating Compounds - Methods for chromatography for metal compounds are disclosed herein. These methods relate to introducing an analyte solution into a chromatographic system comprising a liquid phase flowing through a solid stationary phase, wherein the solid stationary phase comprises graphitic carbon; and eluting compounds from the stationary phase with a retention factor greater than zero, wherein a chromatogram of the eluted compounds shows that the compounds are substantially resolved. Methods for determining the purity of mixtures of metal compounds are also disclosed. | 10-24-2013 |
20140018506 | BRIDGED METALLOCENE CATALYSTS - A solid, particulate catalyst comprising: (i) a complex of formula (I) wherein M is zirconium or hafnium; each X is a sigma ligand; L is a divalent bridge selected from —R | 01-16-2014 |
20140316089 | Pyridyldiamide Metal Catalysts and Processes to Produce Polyolefins - Disclosed are new classes of pyridyldiamide catalyst components useful in olefin polymerization, an example of which includes: | 10-23-2014 |
20150025207 | Cyclopropyl Substituted Metallocene Catalysts - This invention relates to a novel group 2, 3 or 4 transition metal metallocene catalyst compound having at least one arenyl ligand substituted with: 1) a cyclopropyl group and, optionally, 2) at least one other group, such as a hydrocarbyl, a heteroatom or a heteroatom containing group. | 01-22-2015 |
20150025209 | Substituted Metallocene Catalysts - This invention relates to novel bridged a hafnium transition metal metallocene catalyst compounds having two indenyl ligands substituted at the 4 positions with a C | 01-22-2015 |