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    • 53. 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
    • 60. 发明授权
    • Method for purifying organometal compound
    • 有机金属化合物的纯化方法
    • US5783717A
    • 1998-07-21
    • US517093
    • 1995-08-21
    • Hiromi OhsakiToshinobu IshiharaKazuyuki AsakuraIsao KanekoKouhei Satou
    • Hiromi OhsakiToshinobu IshiharaKazuyuki AsakuraIsao KanekoKouhei Satou
    • C07F3/06C07F5/00C07F5/06C07F3/00
    • C07F5/063C07F3/06C07F5/00
    • A method for purifying an organometal compound by removing oxygen atom-containing compounds included in the organometal compound as impurities is herein disclosed. The method comprises the steps of mixing an organometal compound represented by the following formula: ##STR1## with a crude product including an oxygen atom-containing compound represented by the following formula: R.sub.3-n M.sup.1 (OR).sub.n or R.sub.2-m M.sup.2 (OR).sub.m and an alkylaluminum chloride represented by the formula: X.sub.6-q Al.sub.2 R and then distilling the resulting mixture. In the foregoing formulas, R's may be the same or different and each represents an alkyl group having 1 to 3 carbon atoms; M.sup.1 represents a trivalent metal element; M.sup.2 represents a divalent metal element; n is an integer of 1, 2 or 3; m is an integer of 1 or 2; q is an integer ranging from 1 to 5; and X represents a chlorine atom.
    • 本文公开了通过除去作为杂质的有机金属化合物中包含的含氧原子的化合物来纯化有机金属化合物的方法。 该方法包括以下步骤:将由下式表示的有机金属化合物:< IMAGE>与由下式表示的含氧原子的化合物的粗产物:R3-n M1(OR)n或R2-m M2( OR)m和由式X6-qAl2R表示的烷基氯化铝,然后蒸馏所得混合物。 在上述式中,R可以相同或不同,表示碳原子数1〜3的烷基。 M1表示三价金属元素; M2表示二价金属元素; n为1,2或3的整数; m为1或2的整数; q为1〜5的整数; X表示氯原子。