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| Number | Title | Issue Date |
| 7429671 | Process for the fluorination of boron hydrides A process for fluorination of borohydride salts including providing a reaction medium comprising HF and a superacid. A borohydride salt compound is added to the reaction medium. The borohydride salt is reacted with the reaction medium under conditions to form a fluo... | 09/30/2008 |
| 7375241 | Ferrocenyl-1,2-diphosphines, the production thereof and their use The invention relates to compounds of formula (I) provided in the form of racemic compounds, mixtures of diastereomers or essentially pure diastereomers, wherein R1 represents a hydrogen atom or C1-C4-alkyl, and at least one secondar... | 05/20/2008 |
| 7247686 | Solid cocatalyst component for olefin polymerization and catalyst system thereof A solid cocatalyst for olefin polymerization in which an ion-containing compound comprising a cation expressed by [R4M]+, wherein the group R are each individually selected from the group consisting of hydrogen atom and a substituted or non-substituted hy... | 07/24/2007 |
| 7238818 | Heterocyclic metallocenes and polymerization catalysts A new class of heterocyclic metallocenes, a catalytic system containing them and a process for polymerizing addition polymerizable monomers using said catalytic system are disclosed; the heterocyclic metallocenes correspond to the formula (I): YjR″... | 07/03/2007 |
| 7232870 | Bridged metallocene complexes, process for preparing the same and use thereof Provided is a bridged cyclopentadienyl-dicarbollide complex having the formula of {L[(Cp)(C2B9R110)]}MR in which Cp is an unsubstituted, alkyl-substituted, aryl-substituted or fused ring cyclopentadienyl, R1 is ... | 06/19/2007 |
| 7223878 | Reduction of concentration of inorganic by-products and organometallic by-products in the preparation of metallocenes and economical recovery of the starting materials used A process for separating inorganic and organometallic by-products from a mixture comprising at least one organometallic transition metal compound as product and at least one organometallic by-product and at least one inorganic by-product as by-products comprises the... | 05/29/2007 |
| 7217676 | Hydrophobization and silica for supported catalyst This invention relates to a catalyst support comprising the result of the combination of: (a) a support comprising hydroxyl groups; (b) a capping agent comprising a boron containing Lewis acid; and (c) an ionic activator, where... | 05/15/2007 |
| 7163907 | Aluminum-free monocyclopentadienyl metallocene catalysts for olefin polymerization This invention relates to a catalyst system for the production of polyolefins comprising: (A) a Group IV B transition metal component represented by one of the two general formulae wherein (C5 | 01/16/2007 |
| 7141527 | Catalyst system and process for the polymerization of olefins A catalyst system for the polymerization of olefins comprising the product obtained by contacting: (A) a metallocene complex; (B) an organometallic aluminium compound of formula (II): Al[CH2—C(Ar)R4R5 | 11/28/2006 |
| 7078546 | 1,2-bis(9-bora-1,2,3,4,5,6,7,8-octafluorofluorenyl)-3,4,5,6-tetraflurobenzene and related compounds and methods The compound 1,2-bis(9-bora-1,2,3,4,5,6,7,8-octafluorofluorenyl)-3,4,5,6-tetrafluorobenzene, analogs of the compound, and methods for making the compound and its analogs. ... | 07/18/2006 |
| 7074865 | Azaborolyl group 4 metal complexes, catalysts and olefin polymerization process Metal complexes, catalysts derived therefrom, and polymerization processes using the same, characterized by the presence of one or more nitrogen and boron containing, anionic 5-membered cyclic ligand groups, especially 1,2-azaborolyl groups, are disclosed. ... | 07/11/2006 |
| 7053158 | Carborane trianion based catalyst Disclosed is a Ziegler-Natta catalyst for olefin polymerization comprising a metal cation of Group 4 or 14 of the Periodic Table (IUPAC 1976) that is coordinated to a. a carborane dianion group; b. a heteroatom ani... | 05/30/2006 |
| 7053160 | Metallocene monohalogenides Novel metallocene monohalides can be used in the polymerization of olefins. ... | 05/30/2006 |
| 7019157 | Metallocene compounds, production process for olefin polymers using catalysts containing them and olefin polymers produced by the production process The present invention provides metallocene compounds which exhibit high polymerization activity for production of highly stereoregular polymers, as well as a production process for olefin polymers which employs olefin polymerization catalysts containing the compound... | 03/28/2006 |
| 6956133 | Process for hydroformylating an olefin A process for hydroformylating olefins with a rhodium catalyst wherein the rhodium catalyst comprises rhodium and at least one diphosphine ligand of formula ... | 10/18/2005 |
| 6825369 | Metal complex compounds A monocyclopentadienyl or substituted monocyclopentadienyl metal complex containing compound useful as a polymerization catalyst corresponding to the formula: CpMXn+A− wherein: | 11/30/2004 |
| 6818783 | Volatile precursors for deposition of metals and metal-containing films This invention is directed to a group of novel homologous eight membered ring compounds having a metal, such as copper, reversibly bound in the ring and containing carbon, nitrogen, silicon and/or other metals. A structural representation of the compounds of this in... | 11/16/2004 |
| 6781005 | Process for the fluorination of boron hydrides This invention relates to an improvement in a liquid phase process for the direct fluorination of borohydride salts including the B10H10−2 and B12H12−2 salts wherein said borohydride salt is conta... | 08/24/2004 |
| 6780807 | Acyclic anionic six-electron-donor ancillary ligands The present invention provides an improved acyclic anionic six-electron-donor ancillary ligand suitable for being bonded in a transition metal complex. The present invention also provides a transition metal complex that includes at least one acyclic anionic six-elec... | 08/24/2004 |
| 6720439 | Synthesis of ruthenium-hydride complexes and preparation procedures of chiral alcohols and ketones trans-RuH(η1-BH4)[(S)-xylbinap][(S,S)-dpen] (0.00125 mmol), acetophenone (5.0 mmol), and 2-propanol (2.5 mL) were placed in an autoclave, and the resulting solution was repeatedly subject 5 times to a procedure of performing pressure reduction... | 04/13/2004 |
| 6635597 | Perfluoronaphthyl substituted boron containing catalyst activator A catalyst activator particularly adapted for use in the activation of metal complexes of metals of Group 3-10 for polymerization of ethylenically unsaturated polymerizable monomers, especially olefins, comprising a neutral (Lewis acid) or charge separate... | 10/21/2003 |
| 6534664 | Catalyst ligands, catalytic metal complexes and processes using same New ligands having a backbone comprised of NCCX can be combined with a metal or metal precursor compound or formed into a metal-ligand complex to catalyze a number of different chemical transformations, including polymerization.... | 03/18/2003 |
| 6500975 | Cationic ruthenium complexes, their production and their use Cationic ruthenium complexes of the formula A or B or mixtures containing them, ##STR1## where B may be stabilized by a further ligand L4 and X is an anion which does not coordinate or coordinates weakly to the metal center, Y is a monodentate ... | 12/31/2002 |
| 6500363 | Classes of high linear and nonlinear response compounds A class of molecules suitable for linear and nonlinear optical applications which include charged aromatic groups which function as electronic donors and acceptors connected through polyhedral and π-organic and inorganic groups. The polyhedral and π-org... | 12/31/2002 |
| 6455718 | Halogen exchange reactions in preparing catalysts and their precursors Chloropentafluorobenzene or bromopentafluorobenzene is formed by heating perhalobenzene, C6 Fn X6-n where n is 0 to 4, and each X is, independently, a chlorine or bromine atom, with alkali metal fluoride, and an aminophosp... | 09/24/2002 |
| 6423659 | π-complex compounds π-complex compounds and in particular metallocene compounds of formula (Ia)(Ib), ##STR1## in which πI and πII represent π-systems, D designates a donor atom and A designates an acceptor atom, D and A being linked by a reversible coordinative bond... | 07/23/2002 |
| 6395826 | Boron-and/ or aluminum-containing mixtures, hybrid materials, and coatings The present invention relates to mixtures prepared from (A) at least one linear, branched, or cyclic monomeric organosilane having at least two silicon atoms with hydrolyzable and/or condensation-crosslinking groups in which the silicon atoms are bonded to ... | 05/28/2002 |
| 6387975 | Crystalline ion-association substance, process for producing the same, and latent photopolymerization initiator A photo-latent initiator for photopolymerization comprises crystalline ion-association substance having the general formula (I): [{C5 (R1)n }2m Mm ]1+ [{B(R2)4 }- | 05/14/2002 |
| 6355818 | Heterocyclic metal complexes and olefin polymerization process Racemic isomers of metal complexes of Groups 3, 4 or the Lanthanides, addition polymerization catalysts containing the same and olefin polymerization processes using the same comprising a boratabenzene group or divalent derivative thereof are disclosed.... | 03/12/2002 |
| 6329313 | Covalently supported chemical compound which can be neutral or ionic in the claims The present invention relates to a supported chemical compound of the formula (I) ##STR1## in which Ac+ is a cation, c is an integer from 1 to 10, b is an integer ࣙ0, T is a support, y is an integer ࣙ1, a is an integer from 0 to 10, where a.mult... | 12/11/2001 |
| 6180829 | Methods for producing polyhalogenated monoheteroboranes The present invention provides compounds comprising a polyhalogenated heteroborane anion of the formula Ra ZBb Hc Fd Xe (OR")f-1, and a method for producing the same. Specifically, th... | 01/30/2001 |
| 6150544 | Transition metal compound and catalyst containing the same for polymerization of olefins Disclosed is a novel transition metal composition of a metallacycle structure represented by the formula ##STR1## wherein M1 is an element of Group IVB in the Periodic Table, M2 is an element of Group IIIA in the Periodic Table,... | 11/21/2000 |
| 6150529 | Single site catalyst with methyl aluminoxane or borate free and their applications for the preparation of polyolefins A novel organometallic compound is disclosed which can be used, in conjunction with a trialkyl or bialkyl aluminum cocatalyst, for catalyzing the polymerization and copolymerization of ethylene without requiring the use of either methyl aluminoxane or bor... | 11/21/2000 |
| 6130357 | Polyhalogenated monoheteroborane anion compositions The present invention provides compounds comprising a polyhalogenated heteroborane anion of the formula Ra ZBb Hc Fd Xe (OR")f-1, and a method for producing the same. Specifically, th... | 10/10/2000 |
| 6114555 | Functionalized metallocene compounds, synthesis process and use thereof The present invention relates to nietallocene compounds characterized by the following formulas: (LRk)z [LRk-f (RI OH)f ]x MXyI ##STR1## wherein: L, equal to or different from ea... | 09/05/2000 |
| 6107421 | Heterocyclic metal complexes and olefin polymerization process Metal complexes, addition polymerization catalysts containing the same and olefin polymerization processes using the same comprising a boratabenzene group or divalent derivative thereof are disclosed.... | 08/22/2000 |
| 6100414 | Cyclopentadienyl transition metal compounds useful as polymerization catalysts Disclosed are novel cyclopentadienyl transition metal compounds that are stable under a wide variety of conditions, particularly under conditions that include exposure to water and oxygen containing media. These novel compounds can be utilized in preparin... | 08/08/2000 |
| 6013819 | Reduced oxidaton state group 4 metal complexes, addition polymerization catalysts, and polymerization process Metal complexes having constrained geometry and a process for preparation thereof, addition polymerization catalysts formed therefrom, processes for preparation of such addition polymerization catalysts, methods of use, and novel polymers formed thereby, ... | 01/11/2000 |
| 5977392 | Organometallic catalysts for the polymerization and copolymerization of alpha-olefins Catalyst component for the polymerization of alpha-olefins of general formula (I) ##STR1## wherein: M is a transition metal of groups 3, 4-10, lanthanide or actinide of the periodic table of the elements; A is a ring with delocalized π electron... | 11/02/1999 |
| 5942636 | Process of preparing 2-alkyl-2,3-dihydro-1H-benz e!indene-1-one derivatives The invention relates to a process of preparing a 2-alkyl-2,3-dihydro-1H-benze!indene-1-one derivative, preferably 2,3-dihydro-2-methyl-benze!indene-1-one, characterized in that a naphthalene derivative is condensed with an active ester of 2-alky... | 08/24/1999 |
