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    • 52. 发明授权
    • Process for preparing colloidal suspensions of organopolysiloxanes
    • 制备有机聚硅氧烷的胶体悬浮液的方法
    • US4857582A
    • 1989-08-15
    • US195567
    • 1988-05-18
    • Matthias WolfgruberBernward DeubzerVolker Frey
    • Matthias WolfgruberBernward DeubzerVolker Frey
    • C08L83/04C08G77/06C08J3/03
    • C08J3/03C08G77/06C08J2383/04
    • Colloidal suspensions of organopolysiloxanes are prepared by mixing an organosilicon compound selected from the group consisting of mixtures of alkoxysilanes and/or partial hydrolysates thereof and an organo(poly)siloxane which is optionally free of alkoxy groups and contains a maximum of 8 siloxane units, which is mixed with at least one alkoxysilane and/or a partial hydrolysate thereof, with water in the presence of an emulsifier, at a maximum rate of 5 moles of organosilicon compound per hour per liter of water, in which the organosilicon compound and the water is fed continuously, but separately from one another, into a reactor, in which at least one of the two substances contains an emulsifier, while the alkanol is being continuously removed by distillation from the aqueous suspension continuously emerging from the reactor. The aqueous suspension from which the alkanol has been removed by distillation is, if desired, recycled back into the reactor. A tubular reactor is preferably employed in which the water is added continuously at, or near the upper end of the tubular reactor and the organosilicon compound is added via several inlet points arranged along the longitudinal axis of the tubular reactor.
    • 有机聚硅氧烷的胶态悬浮液是通过混合选自烷氧基硅烷和/或其部分水解产物的混合物的有机硅化合物和任选不含烷氧基并且含有最多8个硅氧烷单元的有机(多)硅氧烷制备的, 与至少一种烷氧基硅烷和/或其部分水解产物在乳化剂存在下与水混合,其最大速率为每小时每升水5摩尔有机硅化合物,其中有机硅化合物和水为 连续地但彼此分开地进入反应器,其中两种物质中的至少一种含有乳化剂,同时通过蒸馏从连续从反应器中出来的水性悬浮液连续除去链烷醇。 通过蒸馏除去链烷醇的水性悬浮液如果需要,则循环回到反应器中。 优选使用管式反应器,其中水在管式反应器的上端处或附近连续加入,并且有机硅化合物通过沿着管式反应器的纵向轴线布置的几个入口点加入。
    • 53. 发明授权
    • Process for preparing organopolysiloxanes and copolymers thereof
    • 制备有机聚硅氧烷的方法及其共聚物
    • US4413104A
    • 1983-11-01
    • US332140
    • 1981-12-18
    • Bernward DeubzerNorbert EgerterVolker Frey
    • Bernward DeubzerNorbert EgerterVolker Frey
    • G02C7/04C08F283/12C08F290/00C08F290/06C08F299/00C08F299/08C08G77/00C08G77/14C08G77/22C08G81/00C08F283/00
    • C08F283/122C08F283/124C08F290/068C08F299/08C08G77/14C08G77/22
    • A process for preparing organopolysiloxanes having SiC-bonded organofunctional groups, which comprises reacting an organopolysiloxane containing SiC-bonded hydroxyl and/or alkoxy groups and having an average of about 0.85 to 1.8 SiC-bonded monovalent hydrocarbon radicals or halogenated monovalent hydrocarbon radicals for each Si atom, with an organosilicon compound containing alkoxy groups and/or siloxane oxygen groups and at least one SiC-bonded organofunctional radical per molecule in the presence of an organic solvent and a basic catalyst.The resultant organopolysiloxanes having SiC-bonded organofunctional groups may, for example, be used for preparing modified polymers by copolymerizing the organopolysiloxanes with a monomer containing an aliphatic double bond, such as styrene or hydroxyethyl methacrylate, or by reacting the organopolysiloxanes with an additional polymer such as an epoxy resin. When a monomer, containing an aliphatic double bond is used in the copolymerization, the resultant modified polymers may be used to manufacture hard contact lenses.
    • 一种制备具有SiC键合的有机官能团的有机聚硅氧烷的方法,该方法包括使含有SiC键合的羟基和/或烷氧基的有机聚硅氧烷与每个Si平均约0.85至1.8的SiC键合的一价烃基或卤代一价烃基反应 原子与含有烷氧基和/或硅氧烷氧基的有机硅化合物和在有机溶剂和碱性催化剂存在下每分子至少一个与SiC结合的有机官能团。 具有SiC键合的有机官能团的所得有机聚硅氧烷可以例如通过使有机聚硅氧烷与含有脂族双键的单体如苯乙烯或甲基丙烯酸羟乙酯共聚而制备改性聚合物,或通过使有机聚硅氧烷与另外的聚合物 作为环氧树脂。 当在共聚中使用含有脂肪族双键的单体时,所得到的改性聚合物可用于制造硬质隐形眼镜。
    • 56. 发明授权
    • Organosilicon compounds containing alkenyl groups
    • 含有烯基的有机硅化合物
    • US06252101B1
    • 2001-06-26
    • US09261823
    • 1999-03-03
    • Christian HerzigBernward DeubzerJohann WeisKamelia Karlou-EyrischOskar Nuyken
    • Christian HerzigBernward DeubzerJohann WeisKamelia Karlou-EyrischOskar Nuyken
    • C07F708
    • C08G77/20C07F7/0838C08G77/38
    • The invention describes new organosilicon compounds containing alkenyl groups, comprising units of the formula A a ⁢ R b ⁡ ( R 1 ⁢ O ) c ⁢ SiO 4 - ( a + b + c ) 2 , ( I ) where R are identical or different and are each a monovalent hydrocarbon radical which is free of aliphatic carbon-carbon multiple bonds, has from 1 to 20 carbon atom(s) per radical and may contain from 1 to 4 oxygen atom(s), R1 are identical or different and are each a monovalent hydrocarbon radical which is free of aliphatic carbon-carbon multiple bonds and has from 1 to 8 carbon atom(s) per radical, a is 0 or 1, b is 0, 1, 2 or 3, c is 0, 1, 2 or 3, preferably 0, where the sum a+b+c≦3, A is a radical of the formula —(R2)d—Y(—CH═CHR3)2 where R2 is a divalent hydrocarbon radical which is free of aliphatic carbon-carbon multiple bonds and has from 1 to 6 carbon atom(s), R3 are identical or different and are each a hydrogen atom or are as defined for R, Y is a trivalent hydrocarbon radical which has from 2 to 20 carbon atoms and may contain from 1 to 4 oxygen atom(s) and d is 0 or 1, with the proviso that the organosilicon compounds have at least two units of the formula (I) and at least one radical A per molecule.
    • 本发明描述了含有烯基的新的有机硅化合物,其包含式R的单元相同或不同,并且各自为不含脂族碳 - 碳多键的单价烃基,每个基团具有1-20个碳原子 并且可以含有1至4个氧原子,R 1相同或不同,并且各自为不含脂族碳 - 碳多重键并且每个基团具有1至8个碳原子的单价烃基, 是0或1,b为0,1,2或3,c为0,1,2或3,优选为0,其中和a + b + c = 3,A为式R 2的基团为 不含脂族碳 - 碳多重键且具有1至6个碳原子的二价烃基,R 3相同或不同,各自为氢原子或如对R所定义,Y为三价烃基,其中 具有2至20个碳原子并且可以含有1至4个氧原子,d为0或1,条件是 有机硅化合物具有至少两个式(I)单元和每个分子至少一个基团A.