专利号:WO-2025104067-A1 优先权日:2023-11-14 标题 :Use of a heterogeneous copper/zinc catalyst for continuous, gas-phase synthesis of methyl isobutyl ketone and/or methyl isobutyl carbinol by hydrogenation of mesityl oxide 发明人:RUPPIN CHRISTOPHE 权利人:ARKEMA FRANCE 摘要:The present invention relates to the use of a catalyst comprising a mixture of copper and zinc for continuous, gas-phase synthesis of methyl isobutyl ketone (MIBK) and/or methyl isobutyl carbinol (MIBC) from mesityl oxide. The invention also relates to a synthesis method comprising the following sequence of steps: continuous injection of the reagents in gas form through a reactor; hydrogenation reaction under pressure of hydrogen and at a temperature of between 120 and 250°C in the presence of the catalyst; condensation of the stream from the reactor and separation of the gas stream from the liquid stream; and purification of the liquid stream in order to separate the methyl isobutyl ketone and/or the methyl isobutyl carbinol.
专利号:US-9809661-B2 优先权日:2012-07-02 标 题 :Process for continuous synthesis of a diene elastomer 发明人:DUSSILLOLS JEROME; KIENER PIERRE; PAROLA HELENE 权利人:MICHELIN & CIE; MICHELIN RECH TECH; MICHELIN RECH TECH 摘要:A process for the continuous synthesis of diene elastomers with a high degree of conversion is provided. The process includes simultaneously:n a) introducing continuously into a polymerization reactor containing a gas phase and equipped with at least one stirring rotor and a discharge device, at least i. one or more monomers, including at least one conjugated diene monomer, and ii. from 0% to 70% by mass of an organic solvent, calculated relative to the total mass of monomers and of solvent b) continuously polymerizing the monomer(s), c) stirring the polymerization medium via the continuous movement of at least one stirring rotor about a rotary axle, d) continuously discharging the elastomer paste, e) continuously conveying the discharged elastomer paste to a chopping device and chopping it into particles, f) removing solvent from the particles of the elastomer paste, and g) recovering diene elastomer.
专利号:US-7829624-B2 优先权日:2007-06-29 标题:One-pot synthesis of nanoparticles and liquid polymer for rubber applications 发明人:WARREN SANDRA 权利人:BRIDGESTONE CORP 摘要:A method for performing a one-batch synthesis of a blend of nanoparticles and liquid polymer includes polymerizing a first monomer and optionally a second monomer in a hydrocarbon solvent to form the liquid polymer. The polymerization is terminated before completion with a quenching agent. Then a charge of polymerization initiator, and a mixture of multiple-vinyl aromatic monomer and mono-vinyl aromatic monomer are added. This causes further polymerization whereby nanoparticles are formed in situ having a core including the multiple-vinyl aromatic monomer, and a shell including the first monomer or the first monomer and the second monomer. Liquid polymer/nanoparticle blends resulting from the method and rubber compositions incorporating the blends are also disclosed.
专利号:WO-2018109398-A1 优先权日:2016-12-15 标 题 :Method for the synthesis of a diene polymer having conjugated pendant carbon-carbon double bonds 发明人:MATMOUR RACHID; SCHNELL BENOIT; IVANOV SERGEY 权利人:MICHELIN & CIE 摘要:The invention relates to a method for the synthesis of a diene polymer having conjugated pendant carbon-carbon double bonds located away from the ends thereof, by means of a hydrosilylation reaction.
专利号:US-6987186-B2 优先权日:2003-01-28 标 题 :Synthesis of small particle size quinacridone of beta crystal phase 发明人:COLE DAMIEN THURBER; JEGANATHAN SURULIAPPA GOWDER; HE YINGXIA 权利人:CIBA SC HOLDING AG 摘要:The present invention relates to a process for the synthesis of beta-quinacridone by oxidation in the presence of selected additives that promote the formation of the desired crystal phase and particle size.
专利号:US-2009318592-A1 优先权日:2005-10-11 标 题 :Process for the Synthesis of Amine Ethers 发明人:FREY MARKUS; BROENNIMANN VALERIE 权利人:CIBA GEIGY CORP 摘要:The present invention relates to novel processes for the preparation of a sterically hindered amine ether by reacting a corresponding sterically hindered amine oxide with a ketone or an aldehyde with at least one reactive H in the presence of a peroxydisulphate. Products obtained by this process may be hydrogenated. The compounds made by these processes are particularly effective in the stabilization of polymer compositions against harmful effects of light, oxygen and/or heat and as flame-retardants for polymers.
摘要:Hawley, G.G. The Condensed Chemical Dictionary. 9th ed. New York: Van Nostrand Reinhold Co., 1977., p. 927 摘要:S74 | REFTPS | Transformation Products and Reactions from Literature | DOI:10.5281/zenodo.4318838