Process for preparing polycarbosilanes and new polycarbosilanes
    2.
    发明授权
    Process for preparing polycarbosilanes and new polycarbosilanes 失效
    制备聚碳酸酯和新型聚碳酸酯的方法

    公开(公告)号:US5087685A

    公开(公告)日:1992-02-11

    申请号:US445742

    申请日:1989-12-04

    IPC分类号: C08G77/48 C08G77/60

    CPC分类号: C08G77/60

    摘要: A process for preparing polycarbosilanes by co-condensation of dihalosilanes R.sup.1 R.sup.2 SiX.sub.2 and saturated dihalohydrocarbons Y-A-Y in the presence of an alkali metal, wherein the groups R.sup.1, R.sup.2, X, Y and A have the meanings given in the claims, and also new polycarbosilanes are described.

    摘要翻译: 一种通过二烷基硅烷R 1 R 2 SiX 2和饱和二卤代烃YAY在碱金属存在下共缩合制备聚碳硅烷的方法,其中基团R 1,R 2,X,Y和A具有权利要求中给出的含义,并且还描述了新的聚碳硅烷 。

    Polycarbosilanes and process for preparing them
    3.
    发明授权
    Polycarbosilanes and process for preparing them 失效
    聚碳酸酯及其制备方法

    公开(公告)号:US5204434A

    公开(公告)日:1993-04-20

    申请号:US709571

    申请日:1991-06-04

    CPC分类号: C04B35/571 C08G77/60

    摘要: Polycarbosilanes having Si units which are linked by phenyl-substituted methylene bridges or by partially or completely fluorinated hydrocarbon bridges. These polycarbosilanes are obtained by a Grignard polycondensation reaction. If phenyl substituents are present on the silicon atoms of the polycarbosilanes, they may also optionally be exchanged for halogen atoms in additional halogenating reactions, so that polycarbosilanes can be prepared which are both fluorinated on the hydrocarbon bridges and halogenated (particularly fluorinated) on the silicon atoms.

    摘要翻译: 具有通过苯基取代的亚甲基桥连接的Si单元或部分或完全氟化的烃桥连接的聚碳硅烷。 这些聚碳硅烷通过格氏缩聚反应得到。 如果苯基取代基存在于聚碳硅烷的硅原子上,则它们还可以任选地在另外的卤化反应中交换卤素原子,使得可以制备聚碳硅烷,其在烃桥上被氟化并且在硅上卤化(特别是氟化) 原子

    Halogenated polycarbosilanes and processes for preparing them
    4.
    发明授权
    Halogenated polycarbosilanes and processes for preparing them 失效
    卤代聚碳硅烷及其制备方法

    公开(公告)号:US5247028A

    公开(公告)日:1993-09-21

    申请号:US878622

    申请日:1992-05-05

    IPC分类号: C08G77/60

    CPC分类号: C08G77/60

    摘要: Halogenated polycarbosilanes with uniform or mixed halogenation prepared from aryl-substituted, particularly phenyl-substituted polycarbosilanes by reaction with halogenating reagents under polar or ionic reaction conditions, optionally in the presence of a Lewis acid catalyst. The halogen atom introduced can optionally subsequently be replaced by another halogen atom through a transhalogenation reaction.

    摘要翻译: 具有均匀或混合卤化的卤化聚碳硅烷,其任选在路易斯酸催化剂存在下,由芳基取代的,特别是苯基取代的聚碳硅烷通过与极性或离子反应条件下的卤化剂反应制备。 引入的卤素原子可以任选地随后被另一个卤素原子通过转化反应反应来替代。

    Reinforcement Element With Sensor Fiber, Monitoring System, And Monitoring Method
    6.
    发明申请
    Reinforcement Element With Sensor Fiber, Monitoring System, And Monitoring Method 有权
    加强元件与传感器光纤,监控系统和监控方法

    公开(公告)号:US20090303460A1

    公开(公告)日:2009-12-10

    申请号:US12301222

    申请日:2007-05-16

    IPC分类号: G01B11/16

    摘要: A reinforcement element, comprises at least one sensor fiber adapted for strain measurements based on stimulated Brillouin scattering within said sensor fiber. Furthermore, a system for monitoring strain within a structure comprises a reinforcement element comprising at least one sensor fiber adapted for strain measurements based on stimulated Brillouin scattering within said sensor fiber, a pump laser for coupling in laser radiation of a pump frequency into said at least one sensor fiber, a Stokes laser for coupling in laser radiation of a Stokes laser radiation into said at least one sensor fiber, wherein the pump frequency and the Stokes frequency are different from one another and wherein the frequency difference between the pump and Stokes frequencies is within the range of acoustical phonons within said sensor fiber, a sensor adapted to obtain a stimulated Brillouin backscattering signal, and a network analyzer adapted for determining the complex transfer function of the sensor fiber to determine a spatially resolved strain measurement.

    摘要翻译: 增强元件包括至少一个适于基于所述传感器光纤内受激布里渊散射的应变测量的传感器光纤。 此外,用于监测结构内的应变的系统包括加强元件,该加强元件包括适于基于所述传感器光纤内的受激布里渊散射的应变测量的至少一个传感器光纤,用于将泵浦频率的激光辐射耦合到所述至少一个 一个传感器光纤,斯托克斯激光器,用于将斯托克斯激光辐射的激光辐射耦合到所述至少一个传感器光纤中,其中泵浦频率和斯托克斯频率彼此不同,并且其中泵和斯托克斯频率之间的频率差为 在所述传感器光纤内的声学声子的范围内,适于获得受激布里渊后向散射信号的传感器,以及适于确定传感器光纤的复数传递函数以确定空间分辨应变测量的网络分析仪。

    Reinforcement element with sensor fiber, monitoring system, and monitoring method
    8.
    发明授权
    Reinforcement element with sensor fiber, monitoring system, and monitoring method 有权
    带传感器光纤的加固元件,监控系统和监控方法

    公开(公告)号:US08199317B2

    公开(公告)日:2012-06-12

    申请号:US12301222

    申请日:2007-05-16

    IPC分类号: G01B11/16

    摘要: A reinforcement element, comprises at least one sensor fiber adapted for strain measurements based on stimulated Brillouin scattering within said sensor fiber. Furthermore, a system for monitoring strain within a structure comprises a reinforcement element comprising at least one sensor fiber adapted for strain measurements based on stimulated Brillouin scattering within said sensor fiber, a pump laser for coupling in laser radiation of a pump frequency into said at least one sensor fiber, a Stokes laser for coupling in laser radiation of a Stokes laser radiation into said at least one sensor fiber, wherein the pump frequency and the Stokes frequency are different from one another and wherein the frequency difference between the pump and Stokes frequencies is within the range of acoustical phonons within said sensor fiber, a sensor adapted to obtain a stimulated Brillouin backscattering signal, and a network analyzer adapted for determining the complex transfer function of the sensor fiber to determine a spatially resolved strain measurement.

    摘要翻译: 增强元件包括至少一个适于基于所述传感器光纤内受激布里渊散射的应变测量的传感器光纤。 此外,用于监测结构内的应变的系统包括加强元件,该加强元件包括适于基于所述传感器光纤内的受激布里渊散射的应变测量的至少一个传感器光纤,用于将泵浦频率的激光辐射耦合到所述至少一个 一个传感器光纤,斯托克斯激光器,用于将斯托克斯激光辐射的激光辐射耦合到所述至少一个传感器光纤中,其中泵浦频率和斯托克斯频率彼此不同,并且其中泵和斯托克斯频率之间的频率差为 在所述传感器光纤内的声学声子的范围内,适于获得受激布里渊后向散射信号的传感器,以及适于确定传感器光纤的复数传递函数以确定空间分辨应变测量的网络分析仪。

    Halogenated polycarbosilanes and processes for preparing them
    9.
    发明授权
    Halogenated polycarbosilanes and processes for preparing them 失效
    氢化聚碳酸酯及其制备方法

    公开(公告)号:US5132375A

    公开(公告)日:1992-07-21

    申请号:US531776

    申请日:1990-06-01

    IPC分类号: C08G77/48 C08G77/60

    CPC分类号: C08G77/60

    摘要: Halogenated polycarbosilanes with uniform or mixed halogenation prepared from aryl-substituted, particularly phenyl-substituted polycarbosilanes by reaction with halogenating reagents under polar or ionic reaction conditions, optionally in the presence of a Lewis acid catalyst. The halogen atom introduced can optionally subsequently be replaced by another halogen atom through a transhalogenation reaction.

    摘要翻译: 具有均匀或混合卤化的卤化聚碳硅烷,其任选在路易斯酸催化剂存在下,由芳基取代的,特别是苯基取代的聚碳硅烷通过与极性或离子反应条件下的卤化剂反应制备。 引入的卤素原子可以任选地随后被另一个卤素原子通过转化反应反应来替代。