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    Process for preparing diorganopolysiloxanes having terminal triorganosiloxy units
    1.
    发明授权
    Process for preparing diorganopolysiloxanes having terminal triorganosiloxy units 失效
    制备具有末端三有机甲硅烷氧基单元的二有机聚硅氧烷的方法

    公开(公告)号：US4975510A

    公开(公告)日：1990-12-04

    申请号：US270131

    申请日：1988-11-14

    申请人： Karl-Heinrich Wegehaupt ,  Karl Braunsperger ,  Jorg Patzke

    发明人： Karl-Heinrich Wegehaupt ,  Karl Braunsperger ,  Jorg Patzke

    IPC分类号： C08G77/04 ,  C08G77/06 ,  C08G77/08 ,  C08G77/20 ,  C08G77/32 ,  C08G77/36

    CPC分类号： C08G77/32 ,  C08G77/06 ,  C08G77/20

    摘要： A process for preparing diorganopolysiloxanes containing terminal triorganosiloxy groups which comprises reacting in a 1st step, a cyclic diorganopolysiloxane and/or diorganodichlorosilane hydrolyzate with from 0.05 to 3 percent by weight of triorganochlorosilane, based on the weight of the cyclic diorganopolysiloxane and/or diorganodichlorosilane hydrolyzate employed in the presence of from 1 to 50 ppm by weight of phosphonitrile chloride, based on the total weight of the organosilicon compounds employed, to form a reaction mixture containing .alpha.-triorganosiloxy-.omega.-chlorodiorganopolysiloxane, and in a 2nd step, adding to the reaction mixture obtained in the 1st step and containing the .alpha.-triorganosiloxy-.omega.-chlorodiorganopolysiloxane, a diorganopolysiloxane having one Si-bonded hydroxyl group in each of the terminal units in an amount of from 1 to 1.2 gram-moles of Si-bonded hydroxyl group in this diorganopolysiloxane per gram-atom of Si-bonded chlorine in the triorganochlorosilane, and in a 3rd step, adding hexaorganodisilazane to the reaction mixture of the 2nd step in order to deactivate the phosphonitrile chloride and remove hydrogen chloride from the diorganopolysiloxanes containing terminal triorganosiloxy groups and thereafter removing the low-boiling components by distillation.

    摘要翻译： 一种制备含有末端三有机甲硅烷氧基的二有机聚硅氧烷的方法，其包括在第一步中，以0.05至3重量％的三有机氯硅烷为基础的环状二有机聚硅氧烷和/或二有机二氯硅烷水解产物，基于所用的环状二有机基聚硅氧烷和/或二有机二氯硅烷水解产物的重量 在1至50ppm重量的磷腈氯化物的存在下，基于所用有机硅化合物的总重量，形成含有α-三有机甲硅烷氧基-ω-氯二羟基聚硅氧烷的反应混合物，并且在第二步骤中，向反应中加入 混合物，其含有α-三有机甲硅烷氧基-ω-氯代二羟基聚硅氧烷，每个末端单元中具有1至1.2克摩尔Si键合的羟基的量的每个末端单元中具有一个Si键合的羟基的二有机基聚硅氧烷 这种二有机聚硅氧烷每克原子中的三键硅键合氯 并且在第3步骤中，向第2步骤的反应混合物中加入六有机二硅氮烷，以使磷腈氯化物失活，并从含有三有机甲硅烷氧基的二有机聚硅氧烷中除去氯化氢，然后通过蒸馏除去低沸点组分。

    Process for preparing diorganopolysiloxanes having terminal Si-bonded hydroxyl groups
    2.
    发明授权
    Process for preparing diorganopolysiloxanes having terminal Si-bonded hydroxyl groups 失效
    制备具有末端Si键合的羟基的二有机聚硅氧烷的方法

    公开(公告)号：US4902813A

    公开(公告)日：1990-02-20

    申请号：US280852

    申请日：1988-12-07

    申请人： Karl-Heinrich Wegehaupt ,  Karl Braunsperger ,  Gunter von Au ,  Fridolin Stary

    发明人： Karl-Heinrich Wegehaupt ,  Karl Braunsperger ,  Gunter von Au ,  Fridolin Stary

    IPC分类号： C08G77/08 ,  C08G77/16 ,  C08G77/22 ,  C08G77/32 ,  C08G77/34 ,  C08G77/36

    CPC分类号： C08G77/16 ,  C08G77/34

    摘要： A process for preparing diorganopolysiloxanes having terminal Si-bonded hydroxyl groups which comprises reacting an organosilicon compound selected from a cyclic diorganopolysiloxane, a diorganodichlorosilane hydrolysis product and mixtures thereof with from 0.1 to 3 percent by weight of a diorganodichlorosilane, based on the weight of the organosilicon compound, i.e., the cyclic diorganopolysiloxane and/or diorganodichlorosilane hydrolysis product employed, in the presence of from 1 to 50 ppm by weight of phosphonitrile chloride, based on the total weight of the organosilicon compound and diorganodichlorosilane employed, to form diorganopolysiloxanes containing an Si-bonded chlorine atom in each of the terminal units, then treating the reaction mixture with water or an aqueous solution, separating off the aqueous phase from the diorganopolysiloxanes containing an Si-bonded hydroxyl group in each of the terminal units and thereafter removing the low boiling constituents by distillation.

    摘要翻译： 一种制备具有末端Si键合的羟基的二有机聚硅氧烷的方法，其包括将选自环状二有机基聚硅氧烷，二有机二氯硅烷水解产物及其混合物的有机硅化合物与0.1至3重量％的二有机二氯硅烷基于有机硅的重量 化合物，即所用的环状二有机基聚硅氧烷和/或二有机二氯硅烷水解产物，基于所用的有机硅化合物和二有机二氯硅烷的总重量，在1-50ppm重量的磷腈氯化物的存在下，形成含有Si- 在每个末端单元中连接氯原子，然后用水或水溶液处理反应混合物，从每个末端单元中含有与Si键合的羟基的二有机聚硅氧烷分离水相，然后除去低沸点组分 通过蒸馏 。

    Oxime containing compositions which crosslink in the presence of moisture to form elastomers at room temperature
    4.
    发明授权
    Oxime containing compositions which crosslink in the presence of moisture to form elastomers at room temperature 失效
    含肟的组合物在水分存在下交联以在室温下形成弹性体

    公开(公告)号：US4503210A

    公开(公告)日：1985-03-05

    申请号：US573735

    申请日：1984-01-25

    申请人： G/u/ nter Von Au ,  Karl-Heinrich Wegehaupt ,  August Schiller ,  Karl Braunsperger

    发明人： G/u/ nter Von Au ,  Karl-Heinrich Wegehaupt ,  August Schiller ,  Karl Braunsperger

    IPC分类号： C08L83/00 ,  C08K5/5465 ,  C08L83/04 ,  C08G77/04

    CPC分类号： C08L83/04 ,  C08G77/14 ,  C08G77/20 ,  C08G77/24 ,  C08G77/26 ,  C08G77/70 ,  Y10S528/901

    摘要： Compositions which are stable in the absence of moisture, but crosslink to form elastomers in the presence of moisture at room temperature comprising a diorganopolysiloxane having terminal condensable groups and a silicon compound having at least three oxime groups per molecule bonded to silicon via oxygen, in which a mixture containing a silane having four oxime groups bonded to a silicon atom via oxygen, and a silane having a hydrocarbon radical bonded to a silicon atom via a SiC-bonding and having three oxime groups bonded to the silicon atom via oxygen, or an oligomer of the silane mixture is substituted for at least a portion of the silicon compound having at least three oxime groups per molecule bonded to silicon via oxygen.

    摘要翻译： 在不存在水分的情况下稳定但在室温下存在水分时形成弹性体的组合物包含具有末端可缩合基团的二有机聚硅氧烷和每分子具有至少三个肟基团的硅化合物通过氧与硅键合，其中 含有具有通过氧连接到硅原子的具有四个肟基的硅烷的混合物，以及具有通过SiC键合键合到硅原子的烃基并具有通过氧连接到硅原子上的三个肟基的硅烷或低聚物 的硅烷混合物的至少一部分取代至少一部分每分子具有至少三个肟基团的硅化合物，其通过氧与硅键合。

    Alkenyl group-containing organo(poly)siloxanes
    5.
    发明授权
    Alkenyl group-containing organo(poly)siloxanes 失效
    含烯基的有机（聚）硅氧烷

    公开(公告)号：US5331077A

    公开(公告)日：1994-07-19

    申请号：US996438

    申请日：1992-12-24

    申请人： Rudolf Braun ,  Karl Braunsperger

    发明人： Rudolf Braun ,  Karl Braunsperger

    IPC分类号： C08G77/20 ,  C08G77/22 ,  C08L83/05 ,  C08L83/07 ,  C08G77/12

    CPC分类号： C08G77/20

    摘要： Organo(poly)siloxanes composed of units of the formula [R.sub.a R.sup.1.sub.3-a SiO.sub.1/2 ], [R.sub.b R.sup.1.sub.2-b SiO.sub.2/2 ] and [R.sup.1 SiO.sub.3/2 ], in which R can be the same or different and represents a monovalent organic radical which is free from aliphatic carbon-carbon multiple bonding, R.sup.1 can be the same or different and represents a monovalent organic radical which has at least one aliphatic carbon-carbon multiple bond, a is 0, 1 or 2 and b is 0 or 1.

    摘要翻译： 由式[RaR13-aSiO1 / 2]，[RbR12-bSiO2 / 2]和[R1SiO3 / 2]单元组成的有机（聚）硅氧烷，其中R可以相同或不同，表示一价有机基团， 没有脂族碳 - 碳多重键合，R1可以相同或不同，表示具有至少一个脂族碳 - 碳多键的一价有机基团，a为0,1或2，b为0或1。