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| Number | Title | Issue Date |
| 8436115 | Catalyst systems based on carbonylamino fulvenes The present invention discloses metallic complexes based on carbonylamino fulvene ligands; their method of preparation and their use in the oligomerisation or polymerisation of ethylene and alpha-olefins. ... | 05/07/2013 |
| 8431663 | Polymer and method for producing same A polymer and a method for producing same are provided, which includes a repeating unit represented by the following formula (1): wherein: each of A1, A2, A3, and A4 independently... | 04/30/2013 |
| 8426540 | Tridentate ligand compounds with imino furan units, method for manufacturing said compounds, and their use in the preparation of catalysts for the homopolymerisation and copolymerisation of ethylene and alpha-olefins The present invention relates to new tridentate ligand compounds with imino furan units, to a method for manufacturing said compounds and to their use in the preparation of catalysts for the homopolymerization or copolymerization of ethylene and alpha-olefins. ... | 04/23/2013 |
| 8420756 | Polymerisation of ethylene and alpha-olefins with catalyst systems based on binam derived ligands The present invention relates to the field of single site catalyst systems based on aromatic BINAM diamine ligands and suitable for oligomerising or polymerising ethylene and alpha-olefins. ... | 04/16/2013 |
| 8394902 | Pyridyldiamido transition metal complexes, production and use thereof Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization. ... | 03/12/2013 |
| 8389656 | Copolymer and method for producing same A copolymer and method for providing it are provided, which includes a monomer unit represented by the following formula (1) and an olefin unit: wherein: each of A1, A2, A3, and A4 | 03/05/2013 |
| 8372927 | Metal-ligand complexes and catalysts The present invention generally relates to metal-ligand complexes, catalysts comprising or prepared from the metal-ligand complexes, processes of catalyzing olefin polymerization reactions with the catalysts to prepare polyolefins, polyolefins prepared thereby, proc... | 02/12/2013 |
| 8362162 | Processes of controlling molecular weight distribution in ethylene/alpha-olefin compositions The present invention relates to compositions and processes of making polymers having a controlled molecular weight distribution. The molecular weight distribution is controlled, for example, by controlling the relative monomer concentrations during contact with a p... | 01/29/2013 |
| 8362163 | Tethered supported transition metal complex A supported metal complex comprising the reaction product of a transition metal complex of a polyvalent heteroaryl donor ligand containing at least one ortho-metallated aromatic ligand group and an ethylenically or poly(ethylenically) functionalized particulated org... | 01/29/2013 |
| 8299189 | Ethylene/α-olefin/diene solution polymerization process and polymer A catalyst composition comprising a zirconium complex of a polyvalent aryloxyether and the use thereof in a continuous solution polymerization of ethylene, one or more C3-30 olefins, and a conjugated or nonconjugated diene to prepare interpolymers having ... | 10/30/2012 |
| 8268946 | Clay activation of PD(II) and NI(II) complexes A clay-supported complex that includes a metal complex containing a phosphinobenzenesulfonate ligand coordinated to Pd(II) or Ni(II), and a clay combined with the metal complex. The metal complex can be neutral or charged. The clay-supported complex is active in the... | 09/18/2012 |
| 8252875 | Process for the preparation of unsymmetric bis(imino) compounds Process for the preparation of monoimine compounds, wherein a dicarbonyl compound is reacted in an aliphatic, non-aromatic solvent with aniline. Monoimine compounds having electron-withdrawing substituents in the ortho position and unsymmetric bis(imino) compounds a... | 08/28/2012 |
| 8227557 | Iron complexes and their use in polymerization processes Specific iron complexes (A), a catalyst system for polymerization of olefins comprising at least one metal complex (A) and/or (A′), a prepolymerized catalyst system, the use of these catalyst systems for the polymerization of olefins, and a process for the prepara... | 07/24/2012 |
| 8202954 | Metal-ligand complexes and catalysts The present invention generally relates to metal-ligand complexes, catalysts comprising or prepared from the metal-ligand complexes, processes of catalyzing olefin polymerization reactions with the catalysts to prepare polyolefins, polyolefins prepared thereby, proc... | 06/19/2012 |
| 8158733 | Catalysts based on 2-(2-aryloxy)quinoline or 2-(2-aryloxy)dihydroquinoline ligands Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a Group 4 metal complex that incorporates a dianionic, tridentate 2-(2-aryloxy)quinoline or 2-(2-aryloxy)dihydroquinoline ligand. In one aspect, supported catalysts are ... | 04/17/2012 |
| 8119748 | High activity, low molecular weight olefin polymerization process Group 4 metal complexes comprising a polyvalent, heteroaryl donor ligand and their use as components of olefin polymerization catalysts, especially suited for preparing propylene/ethylene copolymer products having high isotacticity and low molecular weight, are disc... | 02/21/2012 |
| 8101696 | Polyolefin solution polymerization process and polymer A catalyst composition comprising a zirconium complex of a polyvalent aryloxyether and a polymerization processes employing the same, especially a continuous, solution polymerization of ethylene and one or more C3-30 olefins or diolefins to prepare interp... | 01/24/2012 |
| 8058373 | Polypropylene solution polymerization process A process for polymerization of propylene, optionally ethylene, and further optionally one or more C4-30 α-olefins and/or one or more conjugated or nonconjugated dienes under continuous, solution polymerization conditions to prepare a high molecular weig... | 11/15/2011 |
| 8039566 | Olefin metathesis initiators bearing thiazol-2-ylidene ligands This invention relates to olefin metathesis catalysts general formula (I): having a thiazol-2-ylidene ligand of general formula (II): The catalysts have been found to be particula... | 10/18/2011 |
| 8030422 | Recoverable polymer-bound homogeneous catalysts for catalytic chain transfer process Disclosed herein are novel polymer-tethered ligands, metal complexes comprising these ligands, and the use of these complexes as chain transfer catalysts to control the molecular weight of oligomeric and polymeric materials produced in a radical polymerization proce... | 10/04/2011 |
| 7973115 | Catalyst systems based on macrocyclic ligands The present invention discloses the use of rotoxane ligands to prepare catalyst systems suitable for the oligomerization or polymerization of ethylene and alpha-olefins. ... | 07/05/2011 |
| 7973116 | Pyridyldiamido transition metal complexes, production and use thereof Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization. The ligands are tridentate with an NNN configuration. The general formula is: where M, Z, Ln, Lw′, R1 | 07/05/2011 |
| 7956141 | Metal complex containing tridentate ligand, and polymerization catalyst comprising the same The present invention provides 1) a complex comprising a mono-anionictridentate ligand, represented by the following general formula (I); 2) a polymerization catalyst composition, comprising the complex; and 3) a cis-1,4-isoprene polymer, a cis-1,4-butadiene polymer... | 06/07/2011 |
| 7868108 | Transition metal compound, ligand system, catalyst system and process for preparing polyolefins The present invention relates to transition metal compounds of the formula (I), a process for preparing polyolefins by polymerization or copolymerization of at least one olefin in the presence of at least one olefin in the ... | 01/11/2011 |
| 7858718 | Catalysts based on 2-aryl-8-anilinoquinoline ligands Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a Group 4 metal complex that incorporates a dianionic, tridentate 2-aryl-8-anilinoquinoline ligand. In one aspect, supported catalysts are prepared by first combining a ... | 12/28/2010 |
| 7847041 | Cobalt-catalyzed asymmetric cyclopropanation of electron-deficient olefins Cobalt-catalyzed asymmetric cyclopropanation of electron-deficient olefins. ... | 12/07/2010 |
| 7786232 | Single site catalyst systems having a scorpion-like structure The present invention discloses single site catalyst systems having a scorpion-like three dimensional structure that are suitable for oligomerising or polymerising ethylene and alpha-olefins. ... | 08/31/2010 |
| 7776980 | Monocyclopentadienyl complexes Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one bridged keto, thioketo, imino or phosphino group, a catalyst system comprising at least one of the monocyclopentadienyl complexes and a process for preparing polyolefins by polyme... | 08/17/2010 |
| 7767773 | Catalyst compounds are use thereof This invention relates to a transition metal catalyst compound represented by the structure: wherein: each X is, independently, a hydride, a halogen, a hydrocarbyl, a substituted hydrocarbyl, a halocarbyl, or a substituted ... | 08/03/2010 |
| 7754835 | Polymerisation of ethylene and alpha-olefins with phosphino-iminophenol complexes The present invention relates to the field of single site catalyst systems based on phosphino-iminophenol complexes that are suitable for oligomerising or polymerising ethylene and alpha-olefins. ... | 07/13/2010 |
| 7750096 | Method for emulsion polymerizing olefins An aqueous polymer dispersion is prepared by reacting at least one olefin in the presence of at least one polymerization catalyst and one emulsifier in an aqueous medium by a process wherein the polymerization catalyst is prepared in an in situ reaction by reacting ... | 07/06/2010 |
| 7718745 | Heterogenisation of catalyst components Provided is a method for the production of an olefin polymer, which method comprises polymerizing an olefin monomer in the presence of a metallocene catalyst, which catalyst comprises one or more alkyl moieties having a terminal olefin group, and is selected from a ... | 05/18/2010 |
| 7678870 | Processable molecularly imprinted polymers A process is provided herein for preparing molecularly imprinted polymers for detecting a target analyte by Reversible Addition Fragmentation Chain Transfer (RAFT). The process includes providing a complex having the formula L3M wherein L is a β-diketone... | 03/16/2010 |
| 7671151 | Olefin polymerization process A process for making polyethylene having an uncommon but valuable balance of broad molecular weight distribution and a low level of long-chain branching is disclosed. The process comprises polymerizing ethylene in a single reactor in the presence of an α-olefin and... | 03/02/2010 |
| 7671150 | Polymerization of acyclic aliphatic olefins A robust, impurity tolerant method of making substantially linear polymers of acyclic aliphatic olefins using catalyst complexes comprising a single palladium metal center and a substituted tri-aryl ligand is disclosed. ... | 03/02/2010 |
| 7666961 | Olefin polymerization process A slurry process for polymerizing ethylene is disclosed. The process comprises polymerizing ethylene in the presence of an α-olefin and a catalyst comprising an activator and a supported bridged bis-indeno[2,1-b]indolyl zirconium complex. The process uses a highly ... | 02/23/2010 |
| 7655740 | Olefin polymerization process A slurry process for polymerizing ethylene is disclosed. The process comprises polymerizing ethylene in the presence of an α-olefin and a catalyst comprising an activator and a supported bridged indeno[1,2-b]indolyl zirconium complex. The process produces polyethyl... | 02/02/2010 |
| 7638586 | Olefin polymerization process A process for polymerizing ethylene is disclosed. The process comprises polymerizing ethylene in a slurry reaction in the presence of a catalyst system which comprises an activator and an indenoindolyl transition metal complex on a support material. The catalyst sys... | 12/29/2009 |
| 7635739 | Substantially linear polymers and methods of making and using same Copolymers and terpolymers containing acyclic aliphatic olefin derived units and polar monomer derived units are disclosed. Also disclosed are methods of making such copolymers and terpolymers using late transition metal catalyst complexes. ... | 12/22/2009 |
| 7598330 | Cross-metathesis of olefins directly substituted with an electron-withdrawing group using transition metal carbene catalysts The invention pertains to the use of Group 8 transition metal alkylidene complexes as catalysts for olefin cross-metathesis reactions. In particular, ruthenium and osmium alkylidene complexes substituted with an N-heterocyclic carbene ligand and at least one electro... | 10/06/2009 |
