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| Number | Title | Issue Date |
| 8084385 | Catalysts for olefin polymerization Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a bridged cyclopentadienyl complex that incorporates a monoanionic hydroxylamido or hydrazido ligand fragment. Suitable complexes have the structure: ... | 12/27/2011 |
| 8022007 | Ligands and catalyst systems thereof for the catalytic oligomerization of olefinic monomers The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (II); P(R1)(R2)—P(R4)═N(R3) (II) wherein:... | 09/20/2011 |
| 8008224 | Organometallic ruthenium complexes and related methods for the preparation of tetra-substituted and other hindered olefins The invention relates to ruthenium alkylidene complexes having an N-heterocyclic carbene ligand comprising a 5-membered heterocyclic ring having a carbenic carbon atom and at least one nitrogen atom contained within the 5-membered heterocyclic ring, wherein the nitr... | 08/30/2011 |
| 7994087 | Highly active catalyst for atom transfer radical polymerization A class of catalysts with unusually high activity for polymerizing vinyl monomers such as acrylates, methacrylates and styrene is described. The catalysts consists of a metal halide such as CuBr and FeBr2 ligated with multidentate amine-based ligands, for... | 08/09/2011 |
| 7977269 | Diimine metal complexes, methods of synthesis, and methods of using in oligomerization and polymerization Novel α-diimine metal complexes, particularly iron complexes, having a phenyl sulfidyl or substituted phenyl sulfidyl metal complexing group are disclosed. The α-diimine metal complexes having a phenyl sulfidyl or substituted phenyl sulfidyl metal complexing group... | 07/12/2011 |
| 7972987 | Fourth group transition metal compound having cyclopentadienyl ligand, method of preparing compound, and method of preparing olefin polymer using compound The present invention relates to a novel cyclopentadienyl compound, a fourth group transition metal compound having the cyclopentadienyl compound, a method of preparing the fourth group transition metal compound, a method of preparing an olefin polymer by using the ... | 07/05/2011 |
| 7968487 | Single component, phosphine-free, initiators for ethylene homopolymerization and copolymerization with functionalized co-monomers Novel phosphine-free non-ionic single catalysts, and method for making such catalysts, for the homo-polymerization and copolymerization of olefins such as ethylene, α-olefins and functionalized olefins without the use of additional co-activators, are disclosed. The... | 06/28/2011 |
| 7956003 | Catalyst components based on ferricinium complexes used for olefin polymerisation The present invention discloses catalyst components based on ferricinium ligands, their method of preparation and their use in the polymerisation of olefins. ... | 06/07/2011 |
| 7863213 | Supported polymerization catalysts A supported catalyst for olefin polymerization comprises a selected ionic activator, a selected organometallic catalyst and a support material. The selected activator must contain an active hydrogen moeity. The organometallic catalyst is characterized by having a ph... | 01/04/2011 |
| 7795167 | Cyclopentadienyl complexes of group 6 substituted by silyl halides Cyclopentadienyl complexes of group 6 having at least one cyclopentadienyl system which is substituted by at least one silyl group which bears at least one halogen substituent and a catalyst system comprising at least one of the cyclopentadienyl complexes, and also ... | 09/14/2010 |
| 7790649 | Production process of exhaust gas purifying catalyst The present invention relates to a production process of an exhaust gas purifying catalyst, comprising impregnating a support with a solution containing a metal salt and then drying it to load a particle of the metal salt on the support, (a) wherein a base having a ... | 09/07/2010 |
| 7763563 | Niobium compounds and hydrates thereof, formulations containing the same, and methods of providing specifications therefor A niobium compound, ammonium(bisaquo oxobisoxalato)niobate (NH4)[Nb(O)(C2O4)2(H2O)2] and hydrates thereof, is described along with formulations containing the same and methods for creating a product s... | 07/27/2010 |
| 7763562 | Heteroatom bridged metallocene compounds for olefin polymerization This invention relates to a transition metal compound represented by the formula: wherein M is a group 3, 4, 5 or 6 transition metal atom, or a lanthanide metal atom, or actinide metal atom; E is: ... | 07/27/2010 |
| 7727926 | Diimine metal complexes, methods of synthesis, and method of using in oligomerization and polymerization Novel α-diimine metal complexes, particularly iron complexes, having a phenyl sulfidyl or substituted phenyl sulfidyl metal complexing group are disclosed. The α-diimine metal complexes having a phenyl sulfidyl or substituted phenyl sulfidyl metal complexing group... | 06/01/2010 |
| 7723255 | Recyclable metathesis catalysts Highly active, recoverable and recyclable transition metal-based metathesis catalysts and their organometallic complexes including dendrimeric complexes are disclosed, including a Ru complex bearing a 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene and styrenyl ether li... | 05/25/2010 |
| 7718566 | Olefin polymerization catalysts A catalyst composition and method for olefin polymerization are provided. In one aspect, the catalyst composition is represented by the formula αaβbγgMXn wherein M is a metal; X is a halogenated aryloxy group; β and γ... | 05/18/2010 |
| 7713900 | Chiral tertiary aminoalkylnaphthols The present invention provides bipyrimidinyl diphosphine compounds of the formula wherein R is optionally substituted alkyl, cycloalkyl, aryl or heteroaryl; R′ and R″ ... | 05/11/2010 |
| 7709409 | Mixed catalytic composition The present invention relates to catalytic compositions for esterification, transesterification and polycondensation reactions, a process for the catalysis of said reactions employing such catalytic compositions and polyesters or resins obtainable by this process. | 05/04/2010 |
| 7655592 | Process for the preparation of a metal-organic compound comprising at least one imine ligand The invention relates to a process for the preparation of a metal-organic compound, comprising at least one phosphinimine ligand, characterized in that the HA adduct of a phosphinimine ligand according to formula (1) is contacted with a metal-organic reagent of form... | 02/02/2010 |
| 7651971 | Metal catalyst for olefin polymerization and co-polymerization with functional monomers A catalyst is disclosed for the polymerization and co-polymerization of olefins with functionalized monomers. The catalyst is formed from a combination of two neutral metal complexes, L(iPr2)M(CH2Ph)(PMe3) [L=N-(2,6-diisop... | 01/26/2010 |
| 7598200 | Ionic liquids for heterogenising metallocene catalysts The present invention discloses a method for preparing an heterogeniseded catalyst component comprising the steps of: a) providing a halogenated precursor component of formula (I) —X—[—CH2]—CH3 b) reacting the halogenated precursor with... | 10/06/2009 |
| 7550406 | Phosphorus-containing catalyst composition and hydroformylation process using the same Provided are a catalyst composition comprising a bidentate ligand, a monodentate ligand, and a transition metal catalyst and a process of hydroformylation of olefins, comprising reacting the olefin compound with gas mixture of hydrogen and carbon monoxide with stirr... | 06/23/2009 |
| 7507688 | Monocyclopentadienyl complexes Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one unsubstituted, substituted or fused, 5-membered heteroaromatic ring system bound via a specific bridge, a catalyst system comprising at least one of the monocyclopentadienyl compl... | 03/24/2009 |
| 7504354 | Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and process for preparing polyolefins The present invention relates to organometallic transition metal compounds of the formula (I), a catalyst composition comprising at least one of the organometallic transition metal compound and an olefin polymerization process in the presence of one of the catalyst ... | 03/17/2009 |
| 7442750 | Supported olefin polymerization catalyst Supported catalyst systems are provided comprising (a) a transition metal compound, (b) an activator comprising (iii) an aluminoxane or (iv) a Group lilA metal or metalloid compound, and (c) a support material comprising an inorganic metal oxide, inorganic metal hal... | 10/28/2008 |
| 7442819 | Catalysts for olefin polymerization or oligomerization Novel iron and cobalt complexes of certain novel tricyclic ligands containing a “pyridine” ring and substituted with two imino groups are polymerization and/or oligomerization catalysts for olefins, especially ethylene. Depending on the exact structure of the li... | 10/28/2008 |
| 7439205 | 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: where, M is a Group IV or a Group IV transition metal, B is a bridge grou... | 10/21/2008 |
| 7429548 | Soluble late transition metal catalysts for olefin oligomerizations III A This invention relates to a composition comprising a catecholate ligand, palladium or nickel, and an ancillary ligand with the following structure: where Pn is a Group-15 element; H is hydrogen; R7 and R8 ... | 09/30/2008 |
| 7423101 | Catalyst composition and use thereof The present invention is directed toward Group 4, 5, 6, 7, 8, 9, 10 or 11 transition metal compounds containing neutral, mono- or di-anionic tridentate nitrogen/oxygen based ligands that are useful, with or without activators, to polymerize olefins, particularly α-... | 09/09/2008 |
| 7417006 | Catalyst system for the polymerization of olefins A salt of formula (I) [HEoR13]+[T1T2]− (I) wherein Eo is a nitrogen or phosphorous atom; R1 is hydrocarbon radical; T1 is a Lewi... | 08/26/2008 |
| 7410926 | Polymerization process using a supported, treated catalyst system The present invention relates to a supported, treated catalyst system and its use in a process for polymerizing olefin(s). More particularly, it provides a supported, treated catalyst system produced by a process comprising the steps of: (a) forming a supported bime... | 08/12/2008 |
| 7410927 | Catalysts for olefin polymerization This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a catalyst composition. One aspect of this invention is the formation and u... | 08/12/2008 |
| 7405262 | Preparation of functionalized anionic polymerization initiators A process for preparing a functionalized polymerization initiator, the process comprising combining a functionalized styryl compound and an organolithium compound. ... | 07/29/2008 |
| 7399874 | Catalyst compound containing divalent tridentate ligand This invention relates to a catalyst compound represented by the formula: wherein: M is a Group 3 to 12 transition metal; each Ra is, independently, a hydrogen,... | 07/15/2008 |
| 7390861 | Cationic group-3 catalyst system A cationic Group 3 or Lanthanide metal complex for coordination polymerization of olefins is disclosed. The precursor metal complex is stabilized by an anionic multidentate ancillary ligand and two monoanionic ligands. The ancillary ligand and the transition metal f... | 06/24/2008 |
| 7384886 | Methods of preparation of an olefin oligomerization catalyst A method of making a catalyst for use in oligomerizing an olefin comprising a chromium-containing compound, a pyrrole-containing compound, a metal alkyl, a halide-containing compound, and optionally a solvent, the method comprising contacting a composition comprisin... | 06/10/2008 |
| 7381679 | Catalyst combination, isotactic polymers and also a method for producing linear isotactic polymers and the use thereof The present invention relates to a catalyst combination for producing linear isotactic polymers containing an asymmetrical metal complex and also an activator. ... | 06/03/2008 |
| 7378528 | Alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis The invention relates to a complex of ruthenium of the structural formula I, where X1 and X2 are identical or different and are each an anionic ligand, R1 and R2 are ide... | 05/27/2008 |
| 7371705 | Phospha-adamantane(s) catalytic system A catalyst system capable of catalysing the carbonylation of an olefinally unsaturated compound is described. The 5 catalyst system is obtainable by combining: (a) a metal of Group VIB or Group VIII B or a compound thereof; and (b) a bidentate phosphine of general f... | 05/13/2008 |
| 7365140 | Transition metal carbene complexes containing a cationic substituent as catalysts of olefin metathesis reactions Organometallic complexes suitable as olefin metathesis catalysts are provided. The complexes are Group 8 transition metal carbenes bearing a cationic substituent and having the general structure (I) wherein M is a Group 8 t... | 04/29/2008 |
