专利号:US-2023192731-A1 优先权日:2020-05-29 标 题 :Process for the stepwise synthesis of silahydrocarbons 发明人:AUNER NORBERT; STURM ALEXANDER G; SANTOWSKI TOBIAS; FELDER THORSTEN 权利人:MOMENTIVE PERFORMANCE MAT INC 摘要:The invention relates to a process for the stepwise synthesis of silahydrocarbons bearing up to four different organyl substituents at the silicon atom, wherein the process includes at least one step a) of producing a bifunctional hydridochlorosilane by a redistribution reaction, selective chlorination of hydridosilanes with an ether/HCl reagent, or by selective chlorination of hydridosilanes with SiCl 4 , at least one step b) of submitting a bifunctional hydridochloromonosilane to a hydrosilylation reaction, at least one step c) of hydrogenation of a chloromonosilane, and a step d) in which a silahydrocarbon compound is obtained in a hydrosilylation reaction.
专利号:US-9127123-B2 优先权日:2010-05-27 标 题:Membrane enhanced polymer synthesis 发明人:LIVINGSTON ANDREW GUY; GAFFNEY PIERS ROBERT JAMES; VASCONCELOS RENATO CAMPOS 权利人:LIVINGSTON ANDREW GUY; GAFFNEY PIERS ROBERT JAMES; VASCONCELOS RENATO CAMPOS; IMP INNOVATIONS LTD 摘要:This invention relates to the synthesis of polymers. More specifically, the present invention relates to the synthesis of heterobifunctional polymers and polymers with narrow and mono-disperse molecular weight distributions, and especially to the application of membranes to the synthesis of these polymers.
专利号:US-7153991-B2 优先权日:2000-12-01 标 题:Rochow-Müller direct synthesis using nanosized copper catalyst precursors 发明人:LEWIS KENRICK M; RITSCHER JAMES S 权利人:GEN ELECTRIC 摘要: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 than 15, are obtainable with silicon conversions in excess of 80 wt. %. Shorter induction times are realized using the nanosized copper catalysts in the Direct Synthesis. The nanosized copper catalyst precursors most preferably have an average particle size of less than 100 nanometers.
专利号:US-8933181-B2 优先权日:2006-10-06 标题:Branched polymers and methods for their synthesis and use 发明人:MOURI HIROSHI; LUO STEVEN; KURASCH JESSICA; ROBERTSON CHRISTOPHER G; WARREN SANDRA 权利人:MOURI HIROSHI; LUO STEVEN; KURASCH JESSICA; ROBERTSON CHRISTOPHER G; WARREN SANDRA; BRIDGESTONE CORP 摘要:Branched polymers including multi-branched polymers, functionalized branched polymers, star-branched polymers, and dendigraft polymers. Methods for the synthesis of branched polymers and method for the use of branched polymers in tire components are also included.
专利号:US-9610572-B2 优先权日:2012-11-15 标 题 :Ruthenium complexes, method of their production and their usage 发明人:GRELA KAROL; CZARNOCKI STEFAN 权利人:APEIRON SYNTHESIS SPÓLKA AKCYJNA; APEIRON SYNTHESIS SPOLKA AKCYJNA 摘要:The invention concerns the ruthenium complexes of the formula 1: n nacting as pre(catalysts) in the reaction of metathesis of olefins, as well as a method for their production, and their usage.
专利号:US-5973095-A 优先权日:1997-04-21 标题 :Synthesis of hydrogensilsesquioxane and organohydridosiloxane resins 发明人:HACKER NIGEL P; KRAJEWSKI TODD; LEFFERTS SCOTT 权利人:ALLIED SIGNAL INC 摘要:Novel processes for preparing hydridosiloxane and organohydridosiloxane resins are disclosed. The processes of the invention broadly provide for the steps of contacting a silane monomer with a solid state catalyst in the presence of a reaction mixture that includes a nonpolar, e.g., hydrocarbon, solvent, and a polar solvent, e.g., alcohol and water. The process is conducted under conditions effective to catalytically convert said silane monomer into hydridosiloxanes and organohydridosiloxanes. Recovery of the products is advantageously aided by the ease of separating the solid state catalyst from the reaction mixture. Hydridosiloxanes and organohydridosiloxanes resins produced by the processes of the invention are also provided.
摘要:Inoue, S.; Driess, M., Science of Synthesis Knowledge Updates, (2012) 4, 234. 摘要:Denmark, S.; Chang, W.-T. T., Science of Synthesis: Cross Coupling and Heck-Type Reactions, (2012) 1, 395. 摘要:Toksikologiya Novykh Promyshlennykh Khimicheskikh Veshchestv. Toxicology of New Industrial Chemical Substances. For English translation, see TNICS*., 3(23), 1961 摘要:U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals., NX#04051 摘要:Lide, D.R., G.W.A. Milne (eds.). Handbook of Data on Organic Compounds. Volume I. 3rd ed. CRC Press, Inc. Boca Raton ,FL. 1994., p. V5L 4952