利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

9 条记录 (耗时 0.022 秒)

    Mixed alkoxysilyl functional polymers
    3.
    发明授权
    Mixed alkoxysilyl functional polymers 有权
    混合烷氧基甲硅烷基官能聚合物

    公开(公告)号：US07307134B2

    公开(公告)日：2007-12-11

    申请号：US10469096

    申请日：2002-02-22

    申请人： Thomas F. Lim ,  Thomas Bachon ,  Bernd Beuer ,  Johann Klein

    发明人： Thomas F. Lim ,  Thomas Bachon ,  Bernd Beuer ,  Johann Klein

    IPC分类号： C08G77/60

    CPC分类号： C08L83/04 ,  C08G77/18 ,  C08G77/20 ,  C08G77/26 ,  C08G77/70 ,  C08K5/5419 ,  C09J143/04

    摘要： This invention relates to silylated polymers having mixed alkoxy groups on the silyl portion thereof, methods of their preparation, and compositions and reaction products formed therefrom. These alkoxysilylated polymers can be crosslinked when exposed to atmospheric moisture to become useful elastomers, sealants or adhesives. The presence of different alkoxy groups on the silicon atoms can control or otherwise moderate the cure speeds of these silylated polymers.

    摘要翻译： 本发明涉及甲硅烷基部分上具有混合烷氧基的甲硅烷基化聚合物，其制备方法以及由其形成的组合物和反应产物。 这些烷氧基硅烷化聚合物当暴露于大气中时可以交联成为有用的弹性体，密封剂或粘合剂。 在硅原子上存在不同的烷氧基可以控制或以其它方式调节这些甲硅烷基化聚合物的固化速度。

    Silicone water-based emulsions having improved shelf life
    6.
    发明授权
    Silicone water-based emulsions having improved shelf life 失效
    具有改善保质期的硅酮水性乳液

    公开(公告)号：US4609486A

    公开(公告)日：1986-09-02

    申请号：US704976

    申请日：1985-02-25

    申请人： Alan L. Freiberg ,  Daniel Graiver ,  Thomas F. Lim ,  Antony P. Wright

    发明人： Alan L. Freiberg ,  Daniel Graiver ,  Thomas F. Lim ,  Antony P. Wright

    IPC分类号： C08K5/3437 ,  C08K5/37 ,  B01J13/00 ,  C08L83/06 ,  C09D5/34

    CPC分类号： C08K5/3437 ,  C08K5/34 ,  C08K5/37

    摘要： The shelf life of an aqueous, anionic silicone emulsion, which contains an organic tin compound and which forms an elastomer upon removal of the water, is improved by the addition of an additive. The additive is selected from the group consisting of alkyl mercaptan, 8-quinolinol, thioglycolic acid, and salts of thioglycolic acid. Elastomers produced by removing the water from these emulsions, once shelf aged, have more consistent physical properties than do elastomers produced from similar emulsions not containing the additives.

    摘要翻译： 含有有机锡化合物并在除去水后形成弹性体的水性阴离子硅氧烷乳液的保质期通过加入添加剂得到改善。 添加剂选自烷基硫醇，8-羟基喹啉，巯基乙酸和巯基乙酸的盐。 通过从这些乳液中除去水而产生的弹性体，一旦架子老化，与不含添加剂的类似乳液制备的弹性体相比具有更一致的物理性能。

    Polysilane preceramic polymers
    8.
    发明授权
    Polysilane preceramic polymers 失效
    聚硅烷前陶瓷聚合物

    公开(公告)号：US4962176A

    公开(公告)日：1990-10-09

    申请号：US945126

    申请日：1986-12-22

    申请人： Duane R. Bujalski ,  Gary E. DeGrow ,  Thomas F. Lim

    发明人： Duane R. Bujalski ,  Gary E. DeGrow ,  Thomas F. Lim

    IPC分类号： C04B35/571 ,  C08G77/60

    CPC分类号： C04B35/571 ,  C08G77/60

    摘要： Chlorine or bromine-containing polysilanes of the general formula (R.sub.2 Si)(RSi)(R'Si) are disclosed. In these polysilanes there are also bonded to the silicon atoms other silicon atoms and chlorine or bromine atoms, R is an alkyl radical containing 1 to 4 carbon atoms, and R' is selected from the group consisting of alkyl radicals of at least six carbon atoms, phenyl radicals, and radicals of the formula A.sub.y X.sub.(3-y) Si(CH.sub.2).sub.z -- wherein each A is independently selected from a hydrogen atom or alkyl radicals containing 1 to 4 carbon atoms, y is an integer equal to 0 to 3, X is chlorine or bromine, and z is an integer greater than or equal to 1. These preceramic polymers can be pyrolyzed at elevated temperatures under an inert atmosphere to yield ceramic materials or articles. These polysilanes may also be converted into other preceramic polymers which can be pyrolyzed to ceramic materials or articles.

    摘要翻译： 公开了通式（R2Si）（RSi）（R'Si）的氯或溴的聚硅烷。 在这些聚硅烷中，还与硅原子键合其它硅原子和氯或溴原子，R是含有1至4个碳原子的烷基，R'选自至少6个碳原子的烷基 ，苯基和式AyX（3-y）Si（CH 2）z - 的基团，其中每个A独立地选自氢原子或含有1至4个碳原子的烷基，y是等于0至3的整数 X为氯或溴，z为大于或等于1的整数。这些陶瓷前体聚合物可在高温下在惰性气氛下热解，得到陶瓷材料或制品。 这些聚硅烷也可以转化为可以被热解成陶瓷材料或制品的其它预陶瓷聚合物。

    Method of producing silicon carbide preceramic vinyl-containing polymers
    9.
    发明授权
    Method of producing silicon carbide preceramic vinyl-containing polymers 失效
    生产碳化硅前陶瓷含乙烯基聚合物的方法

    公开(公告)号：US4824918A

    公开(公告)日：1989-04-25

    申请号：US93434

    申请日：1987-09-04

    申请人： Duane R. Bujalski ,  Gary E. LeGrow ,  Jonathan Lipowitz ,  Thomas F. Lim

    发明人： Duane R. Bujalski ,  Gary E. LeGrow ,  Jonathan Lipowitz ,  Thomas F. Lim

    IPC分类号： C08G77/20 ,  C04B35/571 ,  C08F2/48 ,  C08G77/06 ,  C08G77/22 ,  C08G77/48 ,  C08G77/60 ,  C08F283/00

    CPC分类号： C04B35/571 ,  C08G77/60

    摘要： Vinyl-containing polysilanes are described wherein the vinyl groups are attached to endblocking sites of intermediate reactivity. These vinyl-containing polysilanes are prepared by reacting a halogen-endblocked polysilane with, first, a non-vinyl-containing Grignard reagent or a non-vinyl organolithium compound whereby the most reactive halogen endblocking groups are replaced; then, second, reacting the resulting polysilane with vinyl Grignard reagent or vinyllithium whereby the halogen endblocking groups of intermediate reactivity are replaced; and, third, reacting the resulting polysilane with a non-vinyl-containing Grignard reagent or a non-vinyl organolithium compound whereby the least reactive halogen endblocking groups are replaced. The vinyl-containing polysilanes can be coverted to ceramic materials, including ceramic fibers, by pyrolysis.

    摘要翻译： 描述含乙烯基聚硅烷，其中乙烯基连接到中间反应性的封端部位。 这些含乙烯基的聚硅烷通过使卤素封端的聚硅烷与首先是含有非乙烯基的格氏试剂或非乙烯基有机锂化合物反应制备，由此更换最活泼的卤素封端基团; 然后，使所得聚硅烷与乙烯基格氏试剂或乙烯基锂反应，由此更换中间反应性的卤素封端基团; 第三，使得到的聚硅烷与非乙烯基格氏试剂或非乙烯基有机锂化合物反应，由此更换最少的反应性卤素封端基团。 含乙烯基的聚硅烷可通过热解覆盖陶瓷材料，包括陶瓷纤维。