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公开(公告)号：US5527933A
公开(公告)日：1996-06-18
申请号：US537597
申请日：1995-10-02
CPC分类号： C08G77/60 , C07F7/0836 , C07F7/0896 , C08G77/48
摘要： There is disclosed an improved method for preparing a hybrid organodisilanol compound having the formulaHO--R.sup.1 R.sup.2 SiC.sub.n H.sub.2n RC.sub.n H.sub.2n SiR.sup.1 R.sup.2 --OH (I)said method comprising:(A) reacting a dihydridosilane of the formulaR.sup.1 R.sup.2 SiH.sub.2 (II)with a diene of the formulaC.sub.n H.sub.2n-1 RC.sub.n H.sub.2n-1 (III)to provide a dihydrido compound of the formulaH--R.sup.1 R.sup.2 SiC.sub.n H.sub.2n RC.sub.n H.sub.2n SiR.sup.1 R.sup.2 --H (IV); and(B) reacting said dihydrido compound (IV) with a buffered water solution in the presence of a palladium catalyst.
摘要翻译： 公开了一种制备具有式HO-R1R2SiCnH2nRCnH2nSiR1R2-OH（I）的杂化有机二硅烷醇化合物的改进方法，所述方法包括：（A）使式R 1 R 2 SiH 2（II）的二氢硅烷与式C n H 2n-1 C n H 2n 1（III）化合物，得到式H-R 1 R 2 SiCnH 2 nRCnH 2 nSiR 1 R 2 -H（IV）的二氢化合物; 和（B）在钯催化剂存在下使所述二氢化合物（IV）与缓冲水溶液反应。
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公开(公告)号：US08586690B2
公开(公告)日：2013-11-19
申请号：US13505716
申请日：2010-11-02
CPC分类号： C07F7/0874 , C08G77/485 , C08G77/50
摘要： The present invention relates to a process for the production of an intermediate siloxane monomer and use of said monomer to produce high molecular weight linear polysilalkylenesiloxanes. The siloxane monomer is prepared by ring opening polymerization of a cyclic monomer of the structure in the presence of an acidic or basic ring opening polymerization catalyst; to form a mixture of siloxane monomers and linear oligomers. The linear oligomers are then extracted and discarded before a further step of ring opening polymerization using the aforementioned intermediate siloxane monomer mixture as the starting material. The second polymerization step is undertaken at a temperature within the melting point range of said siloxane monomer mixture. The intermediate, final product and methods of their manufacture are described.
摘要翻译： 本发明涉及一种制备中间体硅氧烷单体的方法，以及所述单体用于生产高分子量直链聚硅烷基硅氧烷的方法。 所述硅氧烷单体是通过在酸性或碱性开环聚合催化剂的存在下使所述结构的环状单体开环聚合来制备的; 以形成硅氧烷单体和线性低聚物的混合物。 然后在使用上述中间体硅氧烷单体混合物作为起始原料的进一步的开环聚合步骤之前，将线性低聚物萃取并丢弃。 第二聚合步骤在所述硅氧烷单体混合物的熔点范围内的温度下进行。 描述了其制造的中间体，最终产品和方法。
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公开(公告)号：US20120226010A1
公开(公告)日：2012-09-06
申请号：US13505716
申请日：2010-11-02
CPC分类号： C07F7/0874 , C08G77/485 , C08G77/50
摘要： The present invention relates to a process for the production of an intermediate siloxane monomer and use of said monomer to produce high molecular weight linear polysilalkylenesiloxanes. The siloxane monomer is prepared by ring opening polymerization of a cyclic monomer of the structure in the presence of an acidic or basic ring opening polymerisation catalyst; to form a mixture of siloxane monomers and linear oligomers. The linear oligomers are then extracted and discarded before a further step of ring opening polymerization using the aforementioned intermediate siloxane monomer mixture as the starting material. The second polymerisation step is undertaken at a temperature within the melting point range of said siloxane monomer mixture. The intermediate, final product and methods of their manufacture are described.
摘要翻译： 本发明涉及一种制备中间体硅氧烷单体的方法，以及所述单体用于生产高分子量直链聚硅烷基硅氧烷的方法。 硅氧烷单体通过在酸性或碱性开环聚合催化剂的存在下的结构的环状单体的开环聚合制备; 以形成硅氧烷单体和线性低聚物的混合物。 然后在使用上述中间体硅氧烷单体混合物作为起始原料的进一步的开环聚合步骤之前，将线性低聚物萃取并丢弃。 第二聚合步骤在所述硅氧烷单体混合物的熔点范围内的温度下进行。 描述了其制造的中间体，最终产品和方法。
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