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| Number | Title | Issue Date |
| 7652164 | Process for the direct synthesis of trialkoxysilane The Direct Synthesis of trialkoxysilane is carried out by conducting the Direct Synthesis reaction of silicon and alcohol, optionally in solvent, in the presence of a catalytically effective amount of Direct Synthesis catalyst and an effective catalyst-promoting amo... | 01/26/2010 |
| 7605284 | Process for preparing organically modified polyorganosiloxanes The invention relates to a process for the dehydrogenative condensation of alcohols and siloxanes which have at least one hydrogen atom bound to a silicon atom in the molecule, wherein at least one quaternary ammonium hydroxide is used as effective catalyst in this ... | 10/20/2009 |
| 7429672 | Process for the direct synthesis of trialkoxysilane This invention discloses a process to improve reaction stability in the Direct Synthesis of trialkoxysilanes. The process is particularly effective in the Direct Synthesis of triethoxysilane and its higher alkyl cognates providing improved triethoxysilane yields. | 09/30/2008 |
| 7420022 | Polymerization catalyst system utilizing external donor systems and processes of forming polymers therewith External donor systems, catalyst systems and olefin polymerization processes are described herein. The external donor systems generally include a first external donor represented by the general formula SiR2m(OR3)4-m, where... | 09/02/2008 |
| 7339068 | Nanosized copper catalyst precursors for the direct synthesis of trialkoxysilanes The present invention provides a process for using nanosized copper, nanosized copper oxides, nanosized copper chlorides, other nanosized copper salts, and mixtures thereof, as sources of catalytic copper in the Direct Synthesis of trialkoxysilanes of the formula HS... | 03/04/2008 |
| 7241851 | Silicone condensation reaction A new silicone condensation reaction, the condensation between an alkoxy silane or siloxane or a dihydric phenol and an organo-hydrosilane or siloxane and catalysts therefore is described and claimed. ... | 07/10/2007 |
| 7238824 | Derivatizing organometallic halides Methods, compounds, and kits are provided for derivatizing organometallic halide compounds. The methods include reacting an organometallic halide with a reagent to produce an analyte having desired properties. In a preferred form, the analyte has properties that ren... | 07/03/2007 |
| RE39650 | Surface-active additives in the direct synthesis of trialkoxysilanes Disclosed is a process in which surface-active additives are used in the slurry phase Direct Synthesis of trialkoxysilanes to shorten the period between the start of the reaction and the attainment of steady-state rates and selectivities, to improve product yields a... | 05/22/2007 |
| 7109281 | Silyl-acetal compounds This invention relates to the reversible protection of hydroxy-silane functional groups by acid cleavable protecting groups. The development of reversible protecting groups greatly enhances the current utility of silanes while introducing further novel applications.... | 09/19/2006 |
| 7084289 | Modified silane compounds This invention relates to the reversible protection of hydroxy-silane functional groups by acid cleavable protecting groups. The development of reversible protecting groups greatly enhances the current utility of silanes while introducing further novel applications.... | 08/01/2006 |
| 7078549 | Modified silane compounds This invention relates to the reversible protection of hydroxy-silane functional groups by acid cleavable protecting groups. The development of reversible protecting groups greatly enhances the current utility of silanes while introducing further novel applications.... | 07/18/2006 |
| 7074866 | Modified silane compounds This invention relates to the reversible protection of hydroxy-silane functional groups by acid cleavable protecting groups. The development of reversible protecting groups greatly enhances the current utility of silanes while introducing further novel applications.... | 07/11/2006 |
| 7067600 | Modified silane compounds This invention relates to the reversible protection of hydroxy-silane functional groups by acid cleavable protecting groups. The development of reversible protecting groups greatly enhances the current utility of silanes while introducing further novel applications.... | 06/27/2006 |
| 7067688 | Acetylene alcohol and method for preparing the same An acetylene alcohol represented by the following formula, wherein R1 represents a monovalent hydrocarbon radical having 4 to 10 carbon atoms with the carbon atom bonded to the silicon atom being a ter... | 06/27/2006 |
| 7034175 | Modified silane compounds This invention relates to the reversible protection of hydroxy-silane functional groups by acid cleavable protecting groups. The development of reversible protecting groups greatly enhances the current utility of silanes while introducing further novel applications.... | 04/25/2006 |
| 7005525 | Recyclable catalysts methods of making and using the same Organometallic complexes are provided, which include a catalyst containing a transition metal, a ligand and a component having the formula GArF. ArF is an aromatic ring system selected from phenyl, naphthalenyl, anthracenyl, fluorenyl, or inden... | 02/28/2006 |
| 6767982 | Continuous manufacturing process for organoalkoxysiloxanes A mixture of organoalkoxysiloxanes of formula I: wherein R and R″ are identical or different and are methyl, ethyl, vinyl, n-propyl, i-propyl, γ-chloropropyl, n-butyl, i-butyl, n-pentyl, i-pentyl, n-hexyl, i-hexyl, n-... | 07/27/2004 |
| 6753401 | Silcon-containing polymers A process for the production of a silicon-containing polymer having a main chain of oxygen atoms, organic groups and Si—H and a process for the production of a silicon-containing polymer having a main chain of oxygen atoms, organic groups and disubstituted silicon... | 06/22/2004 |
| 6737531 | Catalysts for hydrogenation and hydrosilylation, methods of making and using the same A compound is provided including an organometallic complex represented by the formula I: [CpM(CO)2(NHC)Lk]+A− I wherein M is an atom of molybdenum or tangsten, Cp is substi... | 05/18/2004 |
| 6727375 | Apparatus and process for preparing substantially halogen-free trialkoxysilanes An apparatus for continuously preparing substantially halogen-free, in particular chlorine-free, trialkoxysilanes of the general formula I (RO)3SiH (I) in which R is an alkyl group having from 1 to 6 carbon atoms, has ... | 04/27/2004 |
| 6680399 | Process for the manufacture of alkoxysilanes and alkoxy orthosilicates Process for the production of alkoxysilanes of the formula HSi(OR)3, where R is an alkyl group containing 1 to 6 carbon atoms, and/or alkyl orthosilicates of the formula Si(OR)4, where R is an alkyl group containing 1 to 6 carbon ato... | 01/20/2004 |
| 6667411 | Method for making organooxysilanes A method for the preparation of organooxysilanes containing at least one silicon-carbon bond is provided which comprises reacting at least one tetraorganooxysilane with at least one transition metal organo compound.... | 12/23/2003 |
| 6580000 | Process for the manufacture of alkoxysilanes and alkoxy orthosilicates Process for the production of alkoxysilanes of the formula HSi(OR)3, where R is an alkyl group containing 1 to 6 carbon atoms, and/or alkyl orthosilicates of the formula Si(OR)4, where R is an alkyl group containing 1 to 6 carbon ato... | 06/17/2003 |
| 6534614 | Process for the production of linear organohydrogensiloxanes A process for preparing linear organohydrogensiloxanes. The process comprises contacting an organohydrogendichlorosilane in the presence of trimethylchlorosilane with water to form an M-stopped hydrolyzate. The hydrolyzate is optionally preheated prior to... | 03/18/2003 |
| 6410771 | Fluorinated copper salts as catalysts for the synthesis of trialkoxysilanes In a process for preparing trialkoxysilanes by reaction of silicon metal with an alcohol in an inert solvent in the presence of a copper catalyst, the copper catalyst used is a copper salt whose anion contains at least one nonhydrolyzable fluorine atom, o... | 06/25/2002 |
| 6403818 | Process for producing -hydroxy-carbonyl compound The invention provides a process for producing an -hydroxy-carbonyl compound or an -protected hydroxy-carbonyl compound by reacting a carbonyl compound (I) with a compound (II) and a compound (III). The compounds (I), (II) and (III) are defi... | 06/11/2002 |
| 6380414 | Freshly precipitated CuO as catalyst for the trialkoxysilane synthesis Trialkoxysilanes are prepared by reacting silicon metal with an alcohol in an inert solvent in the presence of a copper catalyst by a process in which the copper catalyst contains copper(II) oxide having a BET surface area of ࣙ10 m2 /g. Furth... | 04/30/2002 |
| 6268432 | Filler/adhesive agent for display units containing a curable silicone composition A filler/adhesive agent for display units containing a condensation reaction curable silicone composition including air oxidation-curable unsaturated compounds and for use as a filler or adhesive in display units whose construction is such that the cured ... | 07/31/2001 |
| 6255514 | Isolation of trimethoxysilane from a TMS/methanol mixture In an extraction process for isolating trimethoxysilane (TMS) from a TMS/methanol mixture by formation of two phases, namely a TMS-rich extract phase and a methanol-rich raffinate phase, by addition of one or more methanol-soluble inorganic and/or organic... | 07/03/2001 |
| 6242628 | Process for preparing alkoxysilanes Alkoxysilanes are prepared by a process, comprising: (i) reacting a chlorosilane with an alcohol in a water-free and solvent free phase with removal of the liberated hydrogen chloride; (ii) transferring the resultant product mixture into a liquid phase to be d... | 06/05/2001 |
| 6239303 | Silylation of hydroxyl group-containing compound A hydroxyl group-containing compound is silylated by reacting it with an organohydrosilane compound in the presence of a ruthenium complex catalyst having carbonyl groups as ligands. Silylation takes place in a short time while the amount of the catalyst ... | 05/29/2001 |
| 6207847 | Manufacture of optically active halohydrin trialkylsilyl ethers A process for the production of optically active Si compounds by reacting a meso-epoxide with a azidotrimethylsilane and a hydrocarbyl halide in the presence of a catalyst formed from the sequential treatment of hafnium t-butoxide or zirconium t-butoxide ... | 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 |
| 6191296 | Continuous method of manufacturing chlorine-free tetraalkoxysilanes Chlorine-free tetraalkoxysilanes of formula (I) (R1 O)4 Si (I) wherein R1 is, independently in each instance, an unbranched, branched, and/or cyclic C1-6 hydrocarbon group is continuously manufactured by a process, ... | 02/20/2001 |
| 6166237 | Removal of dissolved silicates from alcohol-silicon direct synthesis solvents Dissolved silanes, silicones and silicates from solvents used in the slurry phase Direct Synthesis of alkoxysilanes are removed by adding a compatabilizing agent and water to generate filterable precipitates and reusable solvent. The solvents are thereby ... | 12/26/2000 |
| 6127565 | Aromatic silane ether-containing coatings The following class of glycidyl and allyl ethers are found to cure at room temperature much faster than their glycidyl and allyl analogs: ##STR1## where: R1 is selected from the group consisting of: (a) an aliphatic hydrocarbon group containing... | 10/03/2000 |
| 6090965 | Removal of dissolved silicates from alcohol-silicon direct synthesis solvents Dissolved silanes, silicones and silicates from solvents used in the slurry phase Direct Synthesis of alkoxysilanes are removed by adding a carboxylic acid such as formic acid to generate filterable precipitates and reusable solvent. The solvents are ther... | 07/18/2000 |
| 6005132 | Method of preparing alkoxy silanes Higher alkoxysilanes are prepared efficiently and in high yield by transesterification of lower C1-4 alkoxysilanes with C6-38 higher alcohols at reduced pressure with continuous removal of lower alcohol. The products have little or n... | 12/21/1999 |
| 6005036 | Polysilanes A composition containing an organic material subject to oxidative, thermal or actinic degradation can be stabilized by an effective amount of at least one polysilane compound of formula I ##STR1## Preferred compounds are where q is zero, p is 2 to 50... | 12/21/1999 |
| 5998651 | Method for forming alkyl silicate A method for forming alkyl silicate easily at low costs. The method comprises a reaction step of mixing and reacting an aqueous solution of sodium silicate, and a solution of alcohol or alkyl halide in a water-insoluble organic solvent, in the presence of... | 12/07/1999 |
