专利号:US-3742080-A 优先权日:1969-04-11 标 题 :Rhodium based catalysts for the synthesis of 1,4-dienes 发明人:SU A 权利人:DU PONT 摘要:Improved catalysts are provided for the synthesis of 1,4-dienes from Alpha -monoolefins and conjugated dienes. The catalysts are rhodium (III) salts in combination with amides, phosphoramides, phosphine oxides, or water. The improved catalysts allow control of the trans-cis ratio of the 1,4-diene formed and are operable at useful rates in a wide range of solvent systems, both protonic and aprotic.
专利号:US-2024208900-A1 优先权日:2021-04-16 标题 :Synthesis of dimethyl-c17-32-alkyl sulfonium salts 发明人:STROOT JOERG; ZHERSH SERHII; RIPENKO VASYL 权利人:HELM AG 摘要:The invention relates to a process for the preparation of a dimethyl-C 17-32 -alkyl sulfonium salt, preferably a dimethyl-C 17-32 -alkyl sulfonium halide, more preferably a dimethyl-C 17-32 -alkyl sulfonium chloride, still more preferably dimethyl octadecyl sulfonium chloride, the process comprising the steps of: providing a mixture of a C 17-32 -alkyl halide and dimethyl sulfide; and reacting the C 17-32 -alkyl halide with the dimethyl sulfide.
专利号:US-4243787-A 优先权日:1977-11-23 标 题 :Bulk anionic polymerization process using an alkali metal amide and the salt of the same alkali metal with a hydroxylic compound 发明人:BOILEAU SYLVIE L; CAUBERE PAUL J; NDEBEKA GILBERTE; LECOLIER SERGE L; RAYNAL SERGE F 权利人:POUDRES & EXPLOSIFS STE NALE 摘要:The invention relates to a process for the anionic polymerization and copolymerization of vinyl, dienic and heterocyclic monomers. According to the invention, the process consists in carrying out the reaction in the presence of an initiator consisting of a molecular combination of an alkali metal amide and the salt of the same alkali metal with at least one hydroxylic compound and in the absence of solvent. The initiator can be prepared by intimately mixing its constituents or in the presence of a solvent of low polarity which is subsequently evaporated off, or in situ in the monomer. Application to the synthesis of special or widely used polymers and copolymers.
专利号:WO-8503665-A1 优先权日:1984-02-15 标题:Synthesis of polyurethane products 发明人:HOSTETTLER FRITZ 权利人:PIRRI JAQUELYN P; HOSTETTLER FRITZ 摘要:Wide range of polyurethane products, e.g., cellular, dense elastomer, and integral skin microcellular products, obtained by the reaction of (a) a polyisocyanate compound, (b) a polyol, (c) optionally a chain extender and/or blowing agent with/without other known additives, (d) in the presence of a nonhydroxyl flow modifier characterized by carbon and hydrogen atoms, at least one and, generally, a plurality of oxyalkylene groups, and at least one urethane, $(1,5)omicronp. Several of the polyurethane products exhibit unique properties, e.g., foamed articles with capability to conduct static electricity, soft elastomers characterized by improved coefficient of friction, etc. Several classes of the flow modifiers are novel per se. The polyurethane products can be synthesized via the one shot or prepolymer process. Multipackage systems, in particular, two and three component systems are useful in molding operations, e.g., manufacture of shoe soles.
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.\\!
[参考文献]: Bram Baert, Et Al. Transdermal Penetration Behaviour Of Drugs: Cart-Clustering, Qspr And Selection Of Model Compounds. Bioorg Med Chem. 2007 Nov 15;15(22):6943-55.
合成参考文献
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