CAS: 5931-17-9; 4,4'-(1,1,3,3-Tetramethyldisiloxane-1,3-Diyl)Bis(Butan-1-Ol)

上下游产品

CAS号5833-47-6 1,1,-二甲基-1,2-硅氧杂环己烷 | CAS号107-46-0 六甲基二硅氧烷 | CAS号113425-96-0 1,3-bis(4-trime... | CAS号1002-04-6 chloro-(4-chlor... | CAS号1066-40-6 三甲基硅醇 | CAS号23483-24-1 4-(dimethylsilo... | CAS号109-99-9 四氢呋喃 | CAS号75-78-5 二甲基二氯硅烷 | CAS号5833-47-6 1,1,-二甲基-1,2-硅氧杂环己烷

📜1,1-二甲基-1-硅-2-噁环己烷置于盐酸,丙酮体系中,化学反应生成 1,3-双(4-羟基丁基)四甲基二硅氧烷
参考文献:1-Oxa-2-Silacycloalkanes And Their Conversion To Bis-(Hydroxyalkyl)-Disiloxanes
标题:1-Oxa-2-Silacycloalkanes And Their Conversion To Bis-(Hydroxyalkyl)-Disiloxanes
摘要:
DOI:10.1021/ja01548A074

专利信息

专利号:EP-1615963-B1
优先权日:2003-04-16
标题:Method for the continuous synthesis of a liquid melamine resin
发明人：RAETZSCH MANFRED; BUCKA HARTMUT; SCHROEDER FRANK; PFEIFFER STEFFEN; TAPPEINER GUENTHER
权利人:AMI AGROLINZ MELAMINE INT GMBH
摘要:The invention relates to a method for synthesizing a liquid melamine resin, wherein: a) melamine, at least one aldehyde and at least one alcohol are fed to at least one first reactor operated continuously, in particular at least one agitated tank operated continuously and are reacted together, b) the reaction product that is obtained is fed to a solid-liquid phase separation device, c) a solids-rich phase that has been produced in the solid-liquid phase separation is fed back to at least one first reactor, and d) a phase devoid of solids that has been produced in the solid-liquid phase separation is subjected to additional processing steps. The invention thus provides an efficient continuous direct synthesis method for a liquid melamine resin.

专利号:US-8138288-B2
优先权日:2007-01-26
标题:Synthesis of cationic siloxane prepolymers
发明人：STANBRO JASON K; NUNEZ IVAN M; KUNZLER JAY F; SCHORZMAN DEREK A
权利人:STANBRO JASON K; NUNEZ IVAN M; KUNZLER JAY F; SCHORZMAN DEREK A; BAUSCH & LOMB
摘要:This application is directed toward an improved method of synthesizing cationic siloxane prepolymers as well as a specific cationic siloxane prepolymer having improved compatibility with monofunctional siloxanyl methacrylate monomers and medical devices containing the cationic siloxane prepolymer.

专利号:WO-2024216794-A1
优先权日:2023-04-17
标 题:Implantable material and synthesis method therefor and prosthetic heart valve
发明人：WANG LICHAO; WEI XING; KUANG DAJUN
权利人:VENUS MEDTECH HANGZHOU INC
摘要:The present application discloses an implantable material and a synthesis method therefor and a prosthetic heart valve. The implantable material uses polyurethane, the molecular chain structure of polyurethane comprises a soft segment and a hard segment, and a functional branched chain is grafted onto the hard segment; the solubility parameter of the functional branched chain is 6-8. According to the present application, by introducing the functional branched chain into the hard segment, the compatibility between the hard segment and the soft segment is improved and the stress transfer points between the hard segment and the soft segment are increased, so that the prepared implantable polymer material has excellent mechanical properties.

专利号:EP-1576023-B1
优先权日:2002-12-19
标 题:Direct synthesis method for the production of etherified melamine resin condensates, melamine resin condensates, and use thereof
发明人：PFEIFFER STEFFEN; RAETZSCH MANFRED; BUCKA HARTMUT; TAPPEINER GUENTER
权利人:AMI AGROLINZ MELAMINE INT GMBH
摘要:The invention relates to a direct synthesis method for producing etherified melamine resin condensates having average molar masses of 500 to 50,000. The method is characterized by the fact that a) an etherified melamine resin precondensate is produced in an alcoholic solution in a first reaction step; b) the etherified melamine resin precondensate is concentrated in an alcoholic solution in at least one condensation step, C₄ to C₁₈ alcohols, diols of type HO-R-OH, and/or tetravalent alcohols that are based on erythritol being added to the melamine resin precondensate during and/or following the concentration process; c) the concentrated melamine resin precondensate is reacted by means of a mixer, especially a kneader, in a second reaction step.

专利号:US-2006134173-A1
优先权日:2004-12-20
标题 :Polysiloxanes, method of synthesis and ophthalmic compositions
发明人：LIU YAN; HILBORN JONS G; HAITJEMA HENDRIK J
权利人:LIU YAN; HILBORN JONS G; HAITJEMA HENDRIK J
摘要:A linear polysiloxane copolymer has at least one terminal hydroxyalkyl group. The copolymer is preparable by a process comprising a combination of a base-catalysed polymerisation with an acid-catalysed redistribution, and is suitable for preparing ophthalmic compositions for forming an intraocular lens in situ.

专利号:US-2008182956-A1
优先权日:2007-01-26
标 题:Synthesis of cationic siloxane prepolymers