专利号:US-2006116523-A1 优先权日:2003-01-09 标题 :Silver-containing catalysts for the reaction of substrates with c-c-double bonds 发明人:STICHERT WOLFRAM; KLEIN JENS; SCHUNK STEPHAN A; DEMUTH DIRK; SUNDERMANN ANDREAS; GALLEI EWALD; HIBST HARMUT; STORCK SEBASTIAN 权利人:STICHERT WOLFRAM; KLEIN JENS; SCHUNK STEPHAN A; DEMUTH DIRK; SUNDERMANN ANDREAS; GALLEI EWALD; HIBST HARMUT; STORCK SEBASTIAN 摘要:The present invention relates to a silver-containing catalyst system, which can be applied for the reaction of substrates with at least one C—C-double bond with at least one oxygen-containing or oxygen-supplying component with formation of at least one epoxide. The silver-containing catalyst according to the invention is characterized in that its activity as well as its selectivity is significantly increased with respect to the target product compared with the silver-containing catalysts of the state of the art, as a consequence of the process for the manufacture according to the invention, in which the synthesis of a silver-amine complex is carried out in absence of light and at temperatures below room temperature.
专利号:US-2018171086-A1 优先权日:2016-12-16 标题 :Large area monolayer of perfluoro polymers 发明人:SUN HAORAN 权利人:SOUTH DAKOTA BOARD OF REGENTS 摘要:Synthesis and growth of large area free-standing ultra-thin two-dimensional (2D) polymeric films including 2D covalent organic frameworks (COF) are achieved by utilizing fluorocarbon-soluble fluorinated aldehyde derivatives and hydrocarbon-soluble amine derivatives at a liquid-liquid interface of respective fluorocarbon and hydrocarbon solvents.
专利号:US-8455655-B2 优先权日:2010-05-07 标题:Preparation of dihydropyridines 发明人:VISHNU NEWADKAR RAVINDRANATH; PURUSHOTTAM JOSHI ANIL; KUMAR SINGH SANTOSH 权利人:VISHNU NEWADKAR RAVINDRANATH; PURUSHOTTAM JOSHI ANIL; KUMAR SINGH SANTOSH; LESVI LABORATORIOS SL 摘要:The invention relates to a method and compounds for the preparation of clevidipine butyrate, a very short acting hypertensive calcium antagonist, as well as the synthesis of these compounds useful for the preparation of clevidipine (also known as clevidipine butyrate). Moreover the invention also discloses polymorphic forms of clevidipine butyrate, useful for the preparation of pharmaceutical compositions, and processes to prepare them.
专利号:US-5753726-A 优先权日:1995-12-20 标 题:Synthesis of modified epoxy resins for cathodic electrodeposition with catalyst deactivation and diol modification 发明人:REUTER HARDY; JOUCK WALTER; OTT GUENTHER 权利人:BASF LACKE & FARBEN 摘要:Epoxy resins for preparing water-dispersible binders for cathodic electrodeposition coating materials, the epoxy resin being preparable by reacting a) polyepoxides having at least one glycidyl group per molecule b) and, optionally, up to 60% by weight, based on the overall epoxy resin reaction product, of aliphatic and/or alicyclic hydroxy compounds having preferably two or on average less than two hydroxyl groups per molecule and a molecular weight of less than 9000 g/mol, c) in the presence of a catalyst consisting of neutral metal salts, such as alkali metal salts and alkaline earth metal salts, zinc salts and nickel salts of tetrafluoroboric, tetrachloroboric, hexafluoro- antimonic,hexachloroantimonic,hexafluorophosphoric, perchlorate and periodic acid, and d) adding a deactivating agent which prevents the epoxy groups reacting further or effectively reduces the rate of such reaction as soon as the phenolic hydroxyl groups have already substantially reacted and at least 0.6% by weight of epoxy groups are still present, based on the overall weight of the epoxy resin reaction product.\\!
专利号:US-5637757-A 优先权日:1995-04-11 标 题 :One-pot synthesis of ring-brominated benzoate compounds 发明人:HILL JOHN E; FAVSTRITSKY NICOLAI A; MAMUZIC RASTKO I; BHATTACHARYA BHABATOSH 权利人:GREAT LAKES CHEMICAL CORP 摘要:A method of preparing tetrabromobenzoate compounds from tetrabromophthalic anhydride by reacting tetrabromophthalic anhydride with alcohol in the presence of a decarboxylation catalyst. The reaction may be carried out in an excess of alcohol, or with a near stoichiometric amount of alcohol by performing the reaction in an inert solvent.
专利号:US-11491263-B2 优先权日:2017-06-01 标 题:Controllable ion release calcium particles, method for producing same and use thereof 发明人:ENGEL LOPEZ ELISABETH; CASTANO LINARES OSCAR; MARTI MUNOZ JOAN; PLANELL ESTANY JOSEP ANTON 权利人:FUNDACIO INST DE BIOENGINYERIA DE CATALUNYA IBEC; UNIV CATALUNYA POLITECNICA 摘要:The present invention refers to a method for the synthesis of a biodegradable calcium release material that shows controlled ion release properties for tissue engineering, biomaterials containing the calcium particles as well as the calcium particles obtainable therefrom. By varying the treatment temperature of the described method, the calcium material shows different calcium release profiles. Contrary to a specific chemical composition such as CaCO 3 which is associated to a specific calcium release profile, the present invention allows a manifold of compositions, with a manifold of calcium release profiles, all starting from a single specific chemical composition calcium precursor. Therefore, the invention also relates to the use of the controllable release, calcium material in tissue regeneration such as wound healing processes.