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    • 14. 发明授权
    • Polymer mixtures containing polydiorganosiloxane urea-containing components
    • 含有聚二有机硅氧烷脲的组分的聚合物混合物
    • US06846893B1
    • 2005-01-25
    • US08735836
    • 1996-10-23
    • Audrey A. ShermanMieczyslaw H. MazurekWalter R. RomankoPatrick D. HydeRoy WongAlbert I. Everaerts
    • Audrey A. ShermanMieczyslaw H. MazurekWalter R. RomankoPatrick D. HydeRoy WongAlbert I. Everaerts
    • B32B25/20C08L83/10C09D183/10C09J7/02C09J175/00C09J183/10C08G18/61
    • C09D183/10C08L83/10C08L2666/04C09J183/10
    • A mixture is provided comprising (a) at least one of an elastomeric thermoplastic, a non-elastomeric thermoplastic, an elastomeric thermoset and mixtures thereof, excluding polydiorganosiloxane fluids and (b) a polymer having soft polydiorganosiloxane units, hard polyisocyanate residue units, optionally, soft and/or hard organic polyamine residue units and terminal groups. The hard polyisocyanate residue and the hard polyamine residue comprise less than 50% by weight of the polydiorganosiloxane urea containing component. The polyisocyanate residue is the polyisocyanate minus the —NCO groups and the polyamine residue is the polyamine minus the —NH2 groups. The polyisocyanate residue is connected to the polyamine residue by urea linkages. The terminal groups are non-functional groups or functional groups. The polydiorganosiloxane urea containing component may be reactive under free-radical or moisture curing conditions. The mixture may also optionally contain tackifying materials, free radical initiators, crosslinking agents, cure catalysts, and nonreactive additives such as fillers, pigments, stabilizers, antioxidants, flame retardants, plasticizers, compatibilizers and the like.
    • 提供了一种混合物,其包含(a)弹性体热塑性塑料,非弹性体热塑性塑料,弹性体热固性材料及其混合物中的至少一种,不包括聚二有机基硅氧烷流体,和(b)具有软聚二有机硅氧烷单元的聚合物,硬多异氰酸酯残基单元, 软和/或硬有机多胺残基单元和末端基团。 硬多异氰酸酯残基和硬多胺残基包含少于50重量%的含聚二有机硅氧烷脲的组分。 多异氰酸酯残基是多异氰酸酯减去-NCO基团,多胺残基是多胺减去-NH 2基团。 多异氰酸酯残基通过脲键与多胺残基连接。 末端基团是非官能团或官能团。 含有聚二有机硅氧烷脲的组分可以在自由基或湿固化条件下具有反应性。 混合物还可任选地含有增粘材料,自由基引发剂,交联剂,固化催化剂和非反应性添加剂,如填料,颜料,稳定剂,抗氧化剂,阻燃剂,增塑剂,增容剂等。
    • 15. 发明授权
    • Synthetic termination
    • 合成终止
    • US5999619A
    • 1999-12-07
    • US992351
    • 1997-12-17
    • Thomas Bingel
    • Thomas Bingel
    • C09J7/02C09J109/00C09J125/00C09J131/00C09J133/08C09J133/18C09J167/00C09J175/00C09J201/00H04M1/738H04M1/00
    • H04M1/738
    • A method and apparatus for actively simulating an apparent termination input impedance to a current driven data communication equipment (DCE) device is disclosed. The DCE device utilizes several components to implement the apparent termination impedance. A first component is a current driver for providing a source of current within the DCE device. The current source is configured to actively drive an input-output signal line within a communication link. The current driven DCE also includes a mechanism for sensing an input-output signal line voltage, a mechanism for converting the sensed voltage to a feed back current and an active termination for simulating an apparent termination impedance. The converting mechanism is coupled to a summation node which sums current provided from the current driver and current from the converting mechanism to force the desired termination impedance in the DCE device, whilst performing DCE current drive function.
    • 公开了一种用于主动模拟当前驱动数据通信设备(DCE)装置的视在终端输入阻抗的方法和装置。 DCE器件利用多个部件来实现视在端接阻抗。 第一组件是用于在DCE设备内提供电流源的当前驱动器。 电流源被配置为主动驱动通信链路内的输入 - 输出信号线。 电流驱动的DCE还包括用于感测输入 - 输出信号线电压的机构,用于将检测到的电压转换为反馈电流的机构以及用于模拟视在端接阻抗的有源终端。 转换机构耦合到求和节点,该求和节点与当前驱动器提供的电流和来自转换机构的电流相加,以在DCE设备中强制所需的终端阻抗,同时执行DCE电流驱动功能。