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| Number | Title | Issue Date |
| 7655813 | Method of preparing organo dialkylalkoxysilane The invention relates to the preparation of organodialkylalkoxysilane using a continuous method consisting in bringing an alkanol into continuous contact with an omega-haloalkyl dialkylhalosilane in a countercurrent reactor, such as a plate column or a packed column... | 02/02/2010 |
| 7645895 | Reagent and method for preparing a fluorinated and silylated derivative The invention relates to a method for preparing a fluorinated and silylated derivative having a bond between the bearing carbon of at least one fluorine and one silicon. This method comprises at least one step during which a derivative of formula (I) Rf—CO—O-D, ... | 01/12/2010 |
| 7550620 | Process for preparing methylchlorosilanes The invention relates to a process for the direct synthesis of methylchlorosilanes by reaction of chloromethane with a contact composition comprising silicon and copper catalyst, wherein the concentration of oxygen in the chloromethane used is reduced by mixing a) c... | 06/23/2009 |
| 7355060 | Method for producing organosilane By reducing an organosilane represented by the formula (1), SiXnR4-n (1) (wherein X represents a halogen or alkoxide, n represents an integer of 1-3, and R represents an alkyl group or aryl group), there is produced a c... | 04/08/2008 |
| 7262314 | 3-iodopropylmethyldiisopropoxysilane and imaging members including the same A method for preparation of an iodoalkylalkoxysilane includes contacting a haloalkylmethoxysilane with an alcohol in the presence of a protic acid to form a haloalkylalkoxysilane. The haloalkylalkoxysilane is contacted with an iodide to form the iodoalkylalkoxysilan... | 08/28/2007 |
| 7220813 | Application of photocurable pre-ceramic polymers A process for synthesizing photocurable poly(ethynyl) carbosilane includes the steps of mixing dichlorosilane and trichlorosilane reagents, adding sub-stoichiometric amounts of alkali metal and adding excess sodium acetylide. ... | 05/22/2007 |
| 7084237 | Use of stannylenes and germylenes as polymerization catalysts for heterocycles The use of stannylenes and germylenes of general formula (I) wherein: M represents a tin or geranium atom; L1 and L2 independently represent a group of formula: -E14(R14) (R′14) (R″14), -E15 | 08/01/2006 |
| 7081543 | Bridged biscyclopentadienyl ligands and method of preparation The present invention relates to ligands and the synthesis of those ligands for use in metallocene complexes. More particularly, the present invention relates to the synthesis of diarylsilyl bridged biscyclopentadienes using diarylsilyldisulfonates. Even more partic... | 07/25/2006 |
| 7070886 | Holographic storage medium comprising polyfunctional epoxy monomers capable of undergoing cationic polymerization Disclosed is a holographic recording medium. The novel holographic recording mediums disclosed herein comprises: a) at least one polyfunctional epoxide monomer or oligomer which undergoes acid initiated cationic polymerization. Each epoxide in the monomer or oligome... | 07/04/2006 |
| 6960676 | Method of preparing group 14 bridged biscyclopentadienyl ligands The present invention relates to ligands and the synthesis of those ligands for use in metallocene complexes. More particularly, the present invention relates to the synthesis of diarylsilyl bridged biscyclopentadienes using diarylsilyldisulfonates. Even more partic... | 11/01/2005 |
| 6958408 | Ligands with at least a fluorosilcone substituent useful for preparing metal-locenes The invention concerns ligands with at least a fluorosilicone substituent of general formulae (I) and (II); a method for preparing them and their use for producing catalysts useful for olefin polymerisation ... | 10/25/2005 |
| 6888002 | Transition metal complexes with diaminocarbene ligands and their use in reactions catalyzed by transition metals The invention relates to novel transition metal complexes containing at least one diaminocarbene ligand, to processes for preparing these transition metal complexes and to their use as catalysts in organic reactions. ... | 05/03/2005 |
| 6841498 | Catalyst system for ethylene (co)polymerization Disclosed is a new titanium based catalyst system for (co)-polymerizing ethylene or ethylene with alpha-olefin having 3 to 10 carbons. The catalyst is obtained by contacting a magnesium halide support with an aluminum compound and with a titanium halide compound and... | 01/11/2005 |
| 6831189 | Methods and compounds for making coatings, waveguides and other optical devices A method comprises reacting a compound of the general formula R14-mMOR3m wherein m is an integer from 2 to 4, R1 is selected from alkyl, alkenyl, aryl, alkynyl or epoxy, and wherein R1 is nonfluorinated, or fully or partially fluorinated; OR3 i... | 12/14/2004 |
| 6828404 | Polymerizable siloxanes A process for the preparation of an alkoxysilyl siloxane substituted with at least one epoxy, vinyl ether, 1-propenyl ether, acrylate or methacrylate group comprises selectively reacting a hydrosilane compound with a compound containing a vinyl or allyl group and a ... | 12/07/2004 |
| 6809213 | Preparation of secondary aminoisobutylalkoxysilanes A highly efficient method is provided for preparing secondary aminoisobutylalkoxysilanes by reacting hydridoalkoxysilanes with secondary methallylamines in the presence of a hydrosilation catalyst. ... | 10/26/2004 |
| 6803477 | Magnesium mediated preparation of fluorinated alkyl silanes An efficient method is disclosed for the preparation of trifluoromethyl- and difluoromethylsilanes using magnesium metal mediated reductive tri- and difluoromethylation of chlorosilanes with tri- and difluoromethyl sulfides, sulfoxides, and sulfones. One byproduct o... | 10/12/2004 |
| 6610871 | Copper-catalyzed enantioselective allylic substitution reactions An allylic compound is reacted with an organozinc compound Zn(R6)2 to eliminate a group (the leaving group) from the allylic compound and to add a group from the organozinc compound to it in the presence of a copper salt catalyst and... | 08/26/2003 |
| 6506868 | Partial condensate of glycidyl ether group-containing alkoxysilane, silane-modified resin, compositions thereof and preparation methods thereof The present invention provides a partial condensate of glycidyl ether group-containing alkoxysilane which is obtainable by dealcoholization reaction between glycidol and a partial condensate of alkoxysilane, compositions comprising the same and preparatio... | 01/14/2003 |
| 6500414 | Aromatic dimethicone copolyol polymers as sunscreen agents in personal care applications The present invention relates to a process for protecting hair and skin from the deleterious effects of ultra violet radiation using topical applications of a novel dimethicone copolyol compounds bearing ultra violet absorbing substituents.... | 12/31/2002 |
| 6489501 | Method and apparatus for forming a carbon-silicon bond in a silane A method for forming at least one product silane, comprising reacting a transition metal hydride with a starting silane in a presence of a catalyst and at a temperature that exceeds a threshold temperature associated with said reacting.... | 12/03/2002 |
| 6455721 | Method for making organyltriorganooxysilanes A method for the preparation of organyltriorganooxysilanes containing at least one silicon-carbon bond is provided comprising reacting at least one tetraorganooxysilane with an activated carbon and at least one base.... | 09/24/2002 |
| 6410770 | Chloride-free process for the production of alkylsilanes suitable for microelectronic applications This invention includes a process for producing an alkylsilane, comprising reducing an alkoxysilane in the presence of an alkali metal hydride in the presence of a high boiling solvent. The alkylsilane has a boiling point lower than the boiling point of t... | 06/25/2002 |
| 6403750 | Apparatus and process for making ceramic composites from photo-curable pre-ceramic polymers A process for fabricating ceramic composites employs a thermoplastic photo-curable pre-ceramic polymer in which the component is shape by a variety of standard composite fabrication techniques, such as filament winding, tape winding, and woven cloth windi... | 06/11/2002 |
| 6380415 | Process for producing octafluoro[2,2]paracyclophane A process for producing an octafluoro[2,2]paracyclophane includes the steps of (a) reacting 1,4-bis(trifluoromethyl)benzene with a halogenated silane represented by the general formula (1), in the presence of a low valence metal, thereby obtaining a novel... | 04/30/2002 |
| 6358574 | Liquid-crystalline silicones having increased UV stability Crosslinkable LC organosiloxanes exhibiting excellent UV stability, contain units of the general formula 1 [Rb Mesc SiO.sub.(4-b-c)/2 ] (1) in which R are C1 -C4 -alkyl radicals, Mes is at least one group of the general ... | 03/19/2002 |
| 6346595 | Aromatic dimethicone copolyol polymers as sunscreen agents The present invention relates to novel dimethicone copolyol compounds bearing ultra violet absorbing substituents. This invention also relates to compositions of matter, in particular cosmetic compositions, comprising the above novel compounds, which are ... | 02/12/2002 |
| 6258971 | Method for making organooxysilanes A method for the preparation of organooxysilanes containing at least one silicon-carbon bond is provided which comprises reaction of at least one tetraorganooxysilane with at least one metal hydride.... | 07/10/2001 |
| 6258914 | Silane functional oligomer Alkoxy silane oligomers which have a non-hydrolyzable carbon bridged bond to another silane functionality are taught herein, as well as their manufacture and utility.... | 07/10/2001 |
| 6255515 | Processes for producing silicon- or germanium-containing organic compound, transition metal complex, catalyst for polymerization of -olefin and -olefin polymer An alkali metal- or alkali earth metal-containing organic compound (i) is reacted with a leaving group- and silicon- or germanium-containing compound (ii) in the presence of a nitrogen-containing aromatic heterocyclic compound. By such a method, it is pos... | 07/03/2001 |
| 6207846 | Process and intermediate compounds for the preparation of difluorovinylsilane insecticidal and acaricidal agents The present invention provides an improved process and intermediate compounds for the preparation of di-fluorovinylsilane insecticidal and acaricidal agents of the formula I ##STR1## wherein Ar is phenyl, 1- or 2-napthyl or a 5- or 6-membered heteroaromat... | 03/27/2001 |
| 6201058 | Aminosiloxane-containing compositions The invention relates to organopolysiloxanes that have amino groups and are solid at room temperature which can reversibly change their states of aggregation on the basis of temperature changes. Preparations containing these organopolysiloxanes are useful... | 03/13/2001 |
| 6197990 | Process for the preparation of cyclopentadienyl metal salt and process for the preparation of derivative of cyclopentadiene using the same A cyclopentadienyl metal salt is prepared by reacting a cyclopentadiene and a metal hydride in the presence of an amine compound. Furthermore, a derivative of a cyclopentadiene in which a phenyl group is bonded to its cyclopentadienyl moiety through an el... | 03/06/2001 |
| 6191297 | Process for the preparation of organosilanes functionalized in the 3-position A process for the preparation of organosilanes functionalized in the 3-position, by the reaction of suitable allyl compounds with hydrogen silanes, using platinum catalysts having one or more sulfur-containing ligands.... | 02/20/2001 |
| 6159956 | Process and intermediate compounds for the preparation of difluorovinylsilane insecticidal and acaricidal agents The present invention provides an improved process and intermediate compounds for the preparation of difluorovinylsilane insecticide and acaricidal agents of the formula I ##STR1## wherein Ar is phenyl, 1- or 2-napthyl or a 5- or 6-membered heteroaro... | 12/12/2000 |
| 6150487 | Multifunctional organic alkali metal initiator and its synthesis, anionic polymerized star polymers and their preparation This invention relates to a multifunctional organic alkali metal initiator for the preparation of various kinds of star polymers by anionic polymerization, a process for making the initiator, a process using said initiator for making star polymers and the... | 11/21/2000 |
| 6150548 | Linkers The invention relates to a compound having the formula I ##STR1## wherein R1 is hydroxy, (1-6C)alkoxy or NR4 R5, R4 and R5 being independently hydrogen, (1-6C)alkyl, (3-7C)cycloalkyl, (2-6C)alken... | 11/21/2000 |
| 6084117 | Production of silated haloarenes by selective silylation of polyhaloarenes Lithiated haloarenes, although useful as intermediates in the synthesis of various end products, can be hazardous to prepare since unstable, shock sensitive compounds can be formed during lithiation of haloarenes. To avoid this problem, a reaction of a po... | 07/04/2000 |
| 6034151 | Hydrolyzable and polymerizable vinylcyclopropane silanes Polymerizable and hydrolyzable vinylcyclopropane silanes and in particular silicic acid condensates which can be prepared therefrom are described, which exhibit only a low volume shrinkage on polymerization and produce polymers with high mechanical streng... | 03/07/2000 |
| 5710299 | Production of bridged metallocene complexes and intermediates therefor Bridged metallocene compounds are produced by a process of promising commercial utility for plant-sized operations. The overall process involves the direct conversion of benzoindanones to benzoindanols which, without isolation, are converted to benzoinden... | 01/20/1998 |
