相似化合物
14637-34-4 2751-90-8 2001-45-8欧盟法规
C&L通报上下游产品
sodium tetraphenyl borate tetraphenyl phosphonium chloride pentaphenylphosphorane triphenylborane 📜三苯基硼氢氧化钠加合物 以 乙醚,水 用作溶剂,化学反应生成四苯基硼四苯基膦
参考文献:Wittig,G.; Raff,P.,Liebigs Annalen Der Chemie,1951,Vol. 573,P. 195-209
标题:Wittig,G.; Raff,P.,Liebigs Annalen Der Chemie,1951,Vol. 573,P. 195-209
专利信息
专利号:US-6288202-B1
优先权日:1997-04-11
标题 :Synthesis of polycarbonates using Co2
发明人:DESIMONE JOSEPH M; GIVENS RAMONE; JIKEI MITSUTOSHI; COHEN JEFFREY D
权利人:UNIV NORTH CAROLINA
摘要:A process of forming a polycarbonate comprises providing a reaction mixture of at least one polycarbonate-forming monomer and carbon dioxide; and then reacting the polycarbonate-forming monomer and carbon dioxide in the reaction mixture to form the polycarbonate. In one embodiment, the polycarbonate is present in a condensate, and the process further comprises removing carbon dioxide from the reaction mixture; and then collecting the condensate from the reaction mixture. Moreover, uncrystallized polycarbonate may be treated with carbon dioxide to form crystalline polycarbonate. The crystalline polycarbonate is then rendered useful for solid state polymerization.
专利号:WO-2016033079-A1
优先权日:2014-08-29
标题:Synthesis of naphthol novolac
发明人:FANG LIJING; LIAO GUIHONG; CHEN HONGYU; ZHANG CHAO; MULLINS MICHAEL J
权利人:BLUE CUBE IP LLC
摘要:A method for making naphthol novolac comprising: contacting a) a naphthol component comprising i) from 1 to 99 weight percent 1- naphthol; and ii) from 1 to 99 weight percent 2-naphthol; and b) an aldehyde in a reaction zone under reaction conditions to form the naphthol novolac, is disclosed. Also disclosed is a curable composition comprising: a) an epoxy resin; and b) a hardener component comprising i) an oligomeric compound comprising a phosphorus composition which is the reaction product of an etherified resole with 9,10-dihydro-9-oxa-10- phosphaphenanthrene-10-oxide, and ii) a naphthol novolac prepared by the above method. The curable composition can be used to prepare prepregs and electrical laminates.
专利号:US-2023093326-A1
优先权日:2020-06-19
标 题 :Polyester Carbonates on the Basis of Cycloaliphatic Diacids, 1,4:3,6-Dianhydrohexitol and Specific Amounts of an Additional Aliphatic Dihydroxy Compound
发明人:MEYER ALEXANDER; SCHULZ LUKAS FABIAN; PFINGST THOMAS
权利人:COVESTRO DEUTSCHLAND AG
摘要:The present invention relates to a process for preparing a polyester carbonate on the basis of cycloaliphatic diacids and at least one 1,4:3,6-dianhydrohexitol and at least one additional aliphatic dihydroxy compound, to the polyester carbonate prepared according to the process and to a molding compound and a molding body containing the polyester carbonate. The process according to the invention is a direct synthesis, in which all structural elements forming the subsequent polyester carbonate are present as monomers already in the first process step. It is characterized in that a specific ratio of 1,4:3,6-dianhydrohexitol and the at least one additional aliphatic dihydroxy compound is advantageous.
专利号:WO-2016029451-A1
优先权日:2014-08-29
标题:Synthesis of naphthol novolac
专利号:US-12173150-B2
优先权日:2018-12-20
标题:Polyester carbonates from cycloaliphatic diacids and aliphatic diols, and process for preparing same
发明人:MEYER ALEXANDER; PFINGST THOMAS; HEUER HELMUT WERNER; HEIJL JAN; BERTIN ANNABELLE
权利人:COVESTRO INTELLECTUAL PROPERTY GMBH & CO KG
摘要:The present invention relates to a method for preparing a polyester carbonate starting from cycloaliphatic diacids and aliphatic diols and to the polyester carbonate prepared by the method. The method according to the invention is a direct synthesis in which all the structural elements that form the subsequent polyester carbonate are already present as monomers in the first step of the method.