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    • 9. 发明授权
    • Process for manufacturing organic silazane polymers and ceramics
therefrom
    • 从其制造有机硅氮烷聚合物和陶瓷的方法
    • US4847345A
    • 1989-07-11
    • US159315
    • 1988-02-23
    • Minoru TakamizawaYoshihumi TakedaAkira HayashidaTsutomu Takeno
    • Minoru TakamizawaYoshihumi TakedaAkira HayashidaTsutomu Takeno
    • C01B21/068C01B31/36C04B35/571C04B35/589C08G77/48C08G77/60C08G77/62D01F9/10
    • C08G77/60C04B35/571C04B35/589C08G77/62
    • A process for manufacturing an organic silazane polymer which comprises reacting an organic silicon compound of the following formula (I): ##STR1## in which R represents hydrogen, chlorine, bromine, methyl radical, ethyl radical, phenyl radical or vinyl radical, R.sub.1 represents hydrogen or methyl radical and X represents chlorine or bromine, or a mixture of organic silicon compounds of the formula (I) above and an organic silicon compound of the following formula (II): ##STR2## in which R.sub.2 and R.sub.3 represent hydrogen, chlorine, bromine, methyl radical, ethyl radical, phenyl radical or vinyl radical and X represents chlorine or bromine with a disilazane of the following formula (III): ##STR3## in which R.sub.4, R.sub.5, R.sub.6 represents hydrogen, methyl radical, ethyl radical, phenyl radical or vinyl radical in an anhydrous state at a temperature of from 25.degree. to 350.degree. C. while distilling off by-produced organic ingredients out of the system to obtain an organic silazane polymer. The organic silazane polymer is useful for preceramic materials.
    • 一种制备有机硅氮烷聚合物的方法,其包括使下式(I)的有机硅化合物:其中R表示氢,氯,溴,甲基,乙基,苯基或乙烯基 ,R 1表示氢或甲基,X表示氯或溴,或上述式(I)的有机硅化合物与下式(II)的有机硅化合物的混合物:其中R 2 并且R 3代表氢,氯,溴,甲基,乙基,苯基或乙烯基,X代表氯或溴与下列通式(III)的二硅氮烷:其中R4,R5,R6 在25至350℃的温度下,以无水状态代表氢,甲基,乙基,苯基或乙烯基,同时将副产物的有机成分蒸馏出体系,得到有机硅氮烷聚合物。 有机硅氮烷聚合物可用于陶瓷材料。
    • 10. 发明授权
    • Method for the preparation of an organosiloxane oligomer and a novel
organosiloxane oligomer thereby
    • 由此制备有机硅氧烷低聚物和新型有机硅氧烷低聚物的方法
    • US4727172A
    • 1988-02-23
    • US905576
    • 1986-09-09
    • Akira YamamotoMinoru TakamizawaToshinobu IshiharaTadao Kurosaki
    • Akira YamamotoMinoru TakamizawaToshinobu IshiharaTadao Kurosaki
    • C07F7/08
    • C07F7/0852C07F7/0874
    • An efficient method is proposed for the preparation of an organosiloxane oligomer represented by the general formula YSi(R.sup.1).sub.n (--O--SiR.sub.3).sub.3-n, in which each of the groups denoted by R and R.sup.1 is a halogen-substituted or unsubstituted monovalent hydrocarbon group having 1 to 8 carbon atoms, Y is a hydrogen atom or a monovalent group selected from methyl, phenyl, vinyl, chloromethyl and 3-(meth)acryloxypropyl groups and n is zero, 1 or 2, by the reaction of an organosilicon halomagnesium salt of the formula R.sub.3 Si--O--MgX, in which X is a halogen atom, and an organosilane compound of the general formula YSi(R.sup.1).sub.n (Z).sub.3-n, in which Z is a halogen atom or a lower alkoxy group. In particular, tetrasiloxane compounds represented by the general formula Y.sup.1 Si[--O--Si(CH.sub.3).sub.2 (CH.sub.2 CH.sub.2 CF.sub.3)].sub.3, in which Y.sup.1 is a hydrogen atom, chloromethyl group or 3-methacryloxypropyl group, are each a novel compound not known in the prior art.
    • 提出了制备由通式YSi(R1)n(-O-SiR 3)3-n表示的有机硅氧烷低聚物的有效方法,其中由R和R 1表示的每个基团是卤素取代或未取代的 具有1至8个碳原子的一价烃基,Y是氢原子或选自甲基,苯基,乙烯基,氯甲基和3-(甲基)丙烯酰氧基丙基的一价基团,并且n为0,1或2,通过 其中X为卤素原子的式R3Si-O-MgX的有机硅卤镁盐和通式YSi(R1)n(Z)3-n的有机硅烷化合物,其中Z为卤素原子或低级 烷氧基。 特别地,由通式Y1Si [-O-Si(CH3)2(CH2CH2CF3)] 3表示的四硅氧烷化合物,其中Y 1为氢原子,氯甲基或3-甲基丙烯酰氧基丙基,均为未知的新化合物 现有技术