CAS: 136-53-8; Zinc(Ii) 2-Ethylhexanoate

相似化合物

20845-92-5 3444-17-5 45266-20-4

上下游产品

cerium 2-Ethylhexanoic acid zincR-(-)-carveol

专利信息

专利号:WO-2020253244-A1
优先权日:2019-06-20
标 题 :Process for catalytic synthesis of lactide
发明人：JIANG WEI; ZHANG YANKAI; SUN PING; LI AIMIN; ZHANG QUANXING
权利人:NANJING UNIVERSITY OF TECHNOLOGY; NANJING QUANKAI RES INSTITUTE OF BIOMATERIALS CO LTD
摘要:The present invention provides a process for the catalytic synthesis of lactide, comprising: mixing a lactic acid oligomer with a composite catalyst; and synthesizing lactide under a heating condition, and collecting the product using a vacuum distillation mode. The used composite catalyst is composed of a zinc or tin compound and an alkali metal compound. Compared with the prior art, the advantages of the present invention are that: the used composite catalyst features a high production rate with a small use amount, a low reaction temperature (150-220°C), and a short reaction time (2-5 h), has a single pass yield that may reach 95% or more, reduces energy consumption compared with the prior art, and facilitates industrial implementations.

专利号:US-6924385-B2
优先权日:2002-11-18
标 题:Method for synthesis of aliphatic isocyanates from aromatic isocyanates
发明人：LETTMANN CHRISTIAN; KOHLSTRUK STEPHAN; STOCHNIOL GUIDO; SPYROU EMMANOUIL
权利人:DEGUSSA
摘要:The invention relates to a method for synthesis of aliphatic isocyanates from aromatic isocyanates in substantially 3 stages. In particular, the invention relates to a method for synthesis of bis{4-isocyanatocyclohexyl}methane (H 12 MDI) from bis{4-isocyanatophenyl}methane (MDI). More especially, the invention relates to a method for synthesis of H 12 MDI with a trans-trans isomer content of <30%, preferably of <20%, particularly preferably of 5 to 15%.

专利号:US-6133473-A
优先权日:1998-06-25
标 题 :Synthesis of carbamate compounds
发明人：BERRIER JOHN VINCENT
权利人:ROHM & HAAS
摘要:Disclosed is a method for the preparation of carbamate compounds substantially free of by-products; the carbamate compounds being prepared by reacting an isocyanate with a hydroxylated compound in the presence of certain catalysts that increase the rate of carbamylation while decreasing the rate of by-product formation.

专利号:US-8816125-B2
优先权日:2006-12-23
标 题 :Process for the continuous preparation of (cyclo)aliphatic diisocyanates
发明人：MICHALCZAK HANS-WERNER; KOHLSTRUK STEPHAN; KRECZINSKI MANFRED; GRUND GERDA; LOMOELDER RAINER
权利人:MICHALCZAK HANS-WERNER; KOHLSTRUK STEPHAN; KRECZINSKI MANFRED; GRUND GERDA; LOMOELDER RAINER; EVONIK DEGUSSA GMBH
摘要:The invention relates to a multi-stage process for the continuous, phosgene-free preparation of (cyclo)aliphatic diisocyanates that comprises the conversion of (cyclo)aliphatic diamines into the corresponding (cyclo)alkylene biscarbamates and the thermal cleaving of the latter into the (cyclo)alkylene diisocyanates and alcohol. The urea used in accordance with the invention and also the urea employed for the preparation of urea equivalents (e.g. alkyl carbonates, alkyl carbamates) as a possible precursor for the synthesis of the (cyclo)aliphatic biscarbamates is unconditioned.

专利号:US-2012129963-A1
优先权日:2009-07-08
标题 :Synthesis of novel multifunctional cardanol's derivatives and their use as halogen free polyurethanic foams precursors
发明人：BENEDETTI ELENA; CAMPANER PIETRO; D AMICO DANIELE; MINIGHER ANDREA; STIFANI CRISTINA; TARZIA ANTONELLA
权利人:BENEDETTI ELENA; CAMPANER PIETRO; D AMICO DANIELE; MINIGHER ANDREA; STIFANI CRISTINA; TARZIA ANTONELLA
摘要:Cardanol derivative comprising one or more units of the formula and a method for obtaining such cardanol derivative.

专利号:US-6512086-B2
优先权日:2000-07-25
标 题 :Process for preparation of organosilicon compositions
发明人：GRECO ALBERTO; AUSILIO ANTONIO; POZZI ENRICO
权利人:MAPEI SPA
摘要:Process for the preparation of fluid organosilicon compounds usable in adhesive, coating and sealant formulations is described. The process includes the synthesis of organosilicon prepolymer compositions starting from unsaturated polyurethanes obtained in turn from unsaturated monoalcohol polyethers and diisocyanates with a controlled NCO/OH ratio, to which chlorosilanes are added in the presence of methyl or ethyl orthoformates. These organosilicon compositions are able to cross-link through silicon-alkoxy end groups of the type: