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| Number | Title | Issue Date |
| 8138365 | Method for producing organosilanes The invention relates to a method for producing organosilanes of general formula I, [R(R)(R′O)Si—R″—]2Sm I by reaction of (halo-organo)alkoxysilanes of formula II, [R(R)(R′O)Si—R″-Hal II | 03/20/2012 |
| 8134019 | Process for producing fullerene derivative The present invention provides a method for producing a fullerene derivative, comprising the organic group addition step B in which an organic group is further added by reacting at least a basic compound and a halogen compound with a fullerene derivative, which is o... | 03/13/2012 |
| 7951970 | Process for recycling cyclopentadienyl derivatives and preparing metallocenes from recycled, substituted cyclopentadienyl derivatives The present invention relates to a process for recycling cyclopentadienyl derivatives of the formulae (I) and (I′), a process for preparing metallocenes of the formula (III) from cyclopentadienyl derivatives of the formulae (I) and (I′) or from bridged biscyclop... | 05/31/2011 |
| 7687654 | Silane-based resins that can be photochemically and/or thermally structured, single-step method for their production, parent compounds and production methods that can be used for said resins A silane resin that can be structured photochemically and/or thermally is obtained by at least partial condensation of a mixture of a) at least one silane compound RaR2bSiX4-a-b wherein R is a group polymerizable photochem... | 03/30/2010 |
| 7655812 | Preparation of dimethylchlorosilane Dimethylchlorosilane is prepared by reacting 1,2-tetramethyldichlorodisilane with hydrogen chloride in the presence of a catalyst mixture of a) palladium, b) a tertiary amine, and c) a tertiary phosphine having at least one phenyl group having at least one functiona... | 02/02/2010 |
| 7652163 | Cyclic silazanes containing an oxamido ester group and methods Cyclic silazanes containing an oxamido ester group and methods of making these compounds are described. The compounds can be used, for example, to make oxamido ester-terminated siloxanes, which can be precursors for the preparation of various polymeric materials suc... | 01/26/2010 |
| 7598409 | Specific process for preparing silicon compounds bearing fluoroalkyl groups by hydrosilylation The present invention relates to a process for preparing silicon compounds bearing fluoroalkyl groups by hydrosilylation of a fluoroolefin in the presence of a hydrosilylation catalyst, which comprises initially charging and heating a hydrogenchlorosilane, then mete... | 10/06/2009 |
| 7442824 | Process and apparatus for the hydrogenation of chlorosilanes Hydrogenation of a chlorosilane takes place in a reactor having a graphite reaction chamber with a surface which contacts the chlorosilane and a graphite electric heating element which also contacts the chlorosilane, wherein an Si-containing compound and hydrogen ar... | 10/28/2008 |
| 7413657 | Method for selective extraction A process for the extraction of an unwanted material from a fluid containing the unwanted material comprising the steps of introducing an immiscible extraction fluid into the fluid having an unwanted material therein to form a plurality of extraction fluid droplets ... | 08/19/2008 |
| 7374771 | Use of siloxanes as vaporizable carriers Cosmetic formulations comprising alkyl-substituted siloxanes as vaporizable carriers. ... | 05/20/2008 |
| 7368589 | Purification of silicone containing compounds by supercritical fluid extraction The present invention relates to a process for the purification of silicone containing compounds via supercritical fluid extraction. Specifically, the present invention relates to a process comprising the steps of contacting at least one silicone containing compound... | 05/06/2008 |
| 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 |
| 7348447 | Aromatic disiloxane compositions Processes for preparing aromatic matrix materials by metal hydrosilylation followed by alcholysis are provided. Silicon-containing layers that contain such aromatic matrix materials are also provided, as well as electrophotographic photoreceptors and electrophotogra... | 03/25/2008 |
| 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 |
| 7329354 | Purification of organic solvent fluids A chemical distribution system having improved organic solvent fluid purity and consistency includes a vessel containing ion-exchange media positioned within a fluid flow pathway such that the organic solvent fluid passes through the ion-exchange media, thereby effe... | 02/12/2008 |
| 7317118 | Model car having adjustable parts A model car with a simple mechanism for adjusting its look and feel is provided. The model car has a means for adjusting a height between a base of the model and a surface. In addition, the model car also has a means for adjusting an angle between the base of the mo... | 01/08/2008 |
| 7307233 | Isotope separation method and working substance for isotope separation The present invention is directed to the provision of an isotope separation method, which can effectively prevent, without the use of a second gas, a secondary reaction and the formation of a polymer involved in a multiphoton dissociation reaction in laser isotope s... | 12/11/2007 |
| 7307178 | Processes of making γ,δ-unsaturated carboxylic acid and silyl ester thereof, carboxyl group-containing organosilicon compound and process of making A γ,δ-unsaturated carboxylic acid silyl ester is prepared by reacting an α,β-unsaturated carboxylic acid ester with a hydrosilane or hydrosiloxane in the presence of tris(pentafluorophenyl)borane. γ,δ-Unsaturated carboxylic acid derivatives are readily prepare... | 12/11/2007 |
| 7276619 | Vitreoretinal silicone tamponades made by supercritical fluid extraction A process for the purification of a silicone oil or fluid using neat supercritical carbon dioxide or a supercritical carbon dioxide mixture extraction to produce vitreoretinal silicone tamponades. The subject process is an economical, highly effective, reproducible,... | 10/02/2007 |
| 7273588 | Methods of sampling halosilanes for metal analytes Methods for determining the amount of at least one metal analyte present in a liquid or gas sample of a halosilane supply (e.g., a chlorosilane supply) are disclosed herein. A sample of a halosilane supply is contacted and reacted with an aqueous hydrofluoric acid s... | 09/25/2007 |
| 7265234 | Silsesquioxane compound mixture, method of making, resist composition, and patterning process A silsesquioxane compound mixture having a high proportion of silsesquioxane compounds bearing bulky substituent groups on side chain and having a degree of condensation of substantially 100% is prepared by a first stage wherein a silane feed comprising a trifunctio... | 09/04/2007 |
| 7253243 | Organosilicon compounds and method of manufacturing the same There is provided a method of synthesizing an organosilicon compound. This method comprises polymerizing, as a starting material, allyl-(4-alkynyl-phenyl) silane represented by the following general formula (3) in a solvent selected from methylene chloride, chlorofo... | 08/07/2007 |
| 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 |
| 7235682 | Process for manufacturing organochlorosilanes and dipodal silanes Processes are provided for producing organchlorosilanes and dipodal silanes in which an organic halide or alkene or chloralkene is reacted with a hydridochlorosilane in the presence of a quarternary phosphonium salt catalyst by providing sufficient heat to effect a ... | 06/26/2007 |
| 7208618 | Continuous production of organosilanes Preparation of organosilanes by hydrosilylation of an alkene takes place in a continuous manner using an iridium hydrosilylation catalyst and diene cocatalyst. The continuous process provides high yields in a safe and economical manner. ... | 04/24/2007 |
| 7175784 | Method for the production of alkyl lithium compounds by using reduced pressure Disclosed is a method for producing Alkyllithium compounds by reacting metallic lithium with an Alkyl halide in a solvent. The reaction is performed at a reduced pressure at the boiling point of the solvent. ... | 02/13/2007 |
| 7153991 | Rochow-Müller direct synthesis using nanosized copper catalyst precursors A Direct Synthesis of making organohalosilanes with greater selectivity to the dialkyldihalosilane is disclosed herein. By using nanosized copper catalyst precursors, and preferably nanosized promoters as well, D/T values of greater than 10, and preferably greater t... | 12/26/2006 |
| 7148370 | Process for synthesis of diorganosilanes by disproportionation of hydridosiloxanes The present invention provides a novel method for the preparation of diorganosilanes by disproportionation of a hydridosiloxanes comprising at least one terminal SiH group and at least one siloxane bond in the presence of Lewis acid catalysts. The reaction is both s... | 12/12/2006 |
| 7132493 | High refractive index aromatic-based prepolymer precursors Relatively high refractive index polymeric compositions and ophthalmic devices such as for example intraocular lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the copolymerization of one or mor... | 11/07/2006 |
| 7108771 | Method for removal of impurities in cyclic siloxanes useful as precursors for low dielectric constant thin films A process for reducing the level(s) of water and/or other impurities from cyclosiloxanes by either azeotropic distillation, or by contacting the cyclosiloxane compositions with an adsorbent bed material. The purified cyclosiloxane material is useful for forming low-... | 09/19/2006 |
| 7109343 | Metal catalysts and methods for making and using same Compounds having the formula: are disclosed. M1 and M2 are the same or different and are transition metal atoms or ions; Z2 and Z3, independently, are the atoms necessa... | 09/19/2006 |
| 7105707 | Process for preparing alkynyl-substituted aromatic and heterocyclic compounds Mono- and disubstituted aryl or heterocyclic acetylenes are produced by a process comprising reacting an aryl nitrile with an alkynylzinc compound, a bis-alkynylzinc compound, or an alkynylmagnesium compound, in the presence of a nickel/phosphine catalyst. ... | 09/12/2006 |
| 7084080 | Silicon source reagent compositions, and method of making and using same for microelectronic device structure A method of synthesizing an aminosilane source reagent composition, by reacting an aminosilane precursor compound with an amine source reagent compound in a solvent medium comprising at least one activating solvent component, to yield an aminosilane source reagent c... | 08/01/2006 |
| 7084287 | Method of removing palladium There is disclosed a method for removing palladium, which method is characterized by contacting a solution containing a palladium complex containing a phosphorus-type ligand in an organic solvent with a layered clay compound or a zeolite having a pore diameter of 0.... | 08/01/2006 |
| 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 |
| 7019093 | Aqueous developable, photosensitive benzocyclobutene-based oligomers and polymers with high moisture resistance The invention is a photoswitchable benzocyclobutene-based polymer that while remaining aqueous developable, avoids the problem of significant moisture uptake. The oligomer or polymer comprises a polymeric backbone, benzocyclobutene reactive groups, and photoswitchab... | 03/28/2006 |
| 7015296 | Preparation of linear organosiloxane polymers By reacting two types of organosiloxane compounds in the presence of an alkaline compound and under conditions that do not substantially promote equilibration reaction, a linear organosiloxane polymer having a single peak molecular weight distribution is simply and ... | 03/21/2006 |
| 6984747 | Method for preparing styryl-functionalized silanes The invention relates to a method for preparing silanes comprising styryl groups, said silanes being represented by the general formula (I): (St)bSiR′aR4−a−b with improved yields through a reaction with magn... | 01/10/2006 |
| 6967256 | Formation of enediynes by reductive coupling followed by alkyne metathesis One aspect of the present invention relates to methods of preparing enedialkylidyne complexes, enediynes, and alkyne metathesis catalysts, as well as methods of catalyzing alkyne metathesis reactions. The present invention also relates to methods of activating enedi... | 11/22/2005 |
| 6939984 | Process for preparing alkylchlorosilanes from the residues of direct synthesis of alkylchlorsilanes The invention provides a continuous process for preparing alkylchlorosilanes from the residues of direct synthesis of alkylchlorosilanes which comprise liquid constituents with a boiling point of at least 70° C. at 1013 hPa and may also contain solids, with hydroge... | 09/06/2005 |
