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6 条记录 (耗时 0.015 秒)

    Water soluble polyester coating compositions
    2.
    发明授权
    Water soluble polyester coating compositions 失效
    水溶性聚酯涂料组合物

    公开(公告)号：US4054614A

    公开(公告)日：1977-10-18

    申请号：US660737

    申请日：1976-02-23

    申请人： William A. Hoffman, III

    发明人： William A. Hoffman, III

    IPC分类号： C08G63/20 ,  C09D167/00 ,  C08L67/02 ,  C08G63/46

    CPC分类号： C09D167/00 ,  C08G63/20 ,  C08K5/34

    摘要： Water soluble polyester coating compositions convertible to baked coatings characterized by chemical resistance, hardness and flexibility comprising a polyol component incorporating a minor proportion of pentaerythritol and a coupling agent constituted by phthalic anhydride. After neutralizing with a base the water soluble polyester can be interacted with a cross-linking agent, e.g., an aminoplast.

    摘要翻译： 可溶于烘烤涂层的水溶性聚酯涂料组合物，其特征在于耐化学性，硬度和柔韧性，其包含掺入少量季戊四醇的多元醇组分和由邻苯二甲酸酐构成的偶联剂。 在用碱中和后，水溶性聚酯可以与交联剂例如氨基塑料相互作用。

    Liquid crystal display device
    3.
    发明授权
    Liquid crystal display device 失效
    液晶显示装置

    公开(公告)号：US4196976A

    公开(公告)日：1980-04-08

    申请号：US873337

    申请日：1978-01-30

    申请人： William A. Hoffman, III

    发明人： William A. Hoffman, III

    IPC分类号： G02F1/133 ,  G02F1/13

    CPC分类号： G02F1/132

    摘要： A multi-colored illuminated display device whereby colors are constantly changing due to small variations of temperature in the air moving about a contoured sheet of encapsulated cholesteric phase liquid crystal-coated polymeric film situated in a clear, colorless chimney. The rear interior surface of the chimney is coated to prevent the transmission of light therethrough, thus enhancing the reflected colors on the viewing faces. A source of heat and light such as a light bulb is used at the base. The heat rises by convection assisted by louvres or a small low speed fan may be installed. Many colorful designs may be achieved by varying the shape of the liquid crystal sheel and the range of heat temperatures used.

    摘要翻译： 一种多色照明显示装置，由于在围绕位于透明无色烟囱中的封装的胆甾醇相液晶涂覆的聚合物薄膜的形状的空气中移动的空气的微小变化，颜色不断变化。 涂覆烟囱的后部内表面以防止光透过，从而增强观察面上的反射颜色。 在基地使用诸如灯泡的热源和光源。 可以安装由百叶窗或小型低速风扇辅助的对流引起的热量升高。 可以通过改变液晶层的形状和使用的热温度范围来实现许多多彩的设计。

    Satellite system for monitoring space
    5.
    发明授权
    Satellite system for monitoring space 有权
    用于监控空间的卫星系统

    公开(公告)号：US06452538B1

    公开(公告)日：2002-09-17

    申请号：US09663430

    申请日：2000-09-16

    申请人： William A. Hoffman, III

    发明人： William A. Hoffman, III

    IPC分类号： H04B7185

    CPC分类号： B64G1/66 ,  H01Q1/288 ,  H04B7/18519

    摘要： A low-cost satellite system and method for using it for continuously monitoring near space and providing real-time data, both astronomical and space-environmental, is described and claimed. Low cost is achieved by disposing outwardly facing active and passive detection means aboard telecommunications and other satellites, and providing data from such means to subscribers. The system and method enable practical means to monitor space for approaching foreign bodies, providing high quality information for e.g., underfunded educational institutions while making enhanced use of geostationary orbits, a scarce resource, among other benefits.

    摘要翻译： 一种低成本的卫星系统及其使用方法，用于连续监测近地空间并提供天文和空间环境的实时数据。 通过在电信和其他卫星上面向对外的主动和被动检测装置以及向订户提供从这些装置提供数据来实现低成本。 该系统和方法使实际手段能够监测接近异物的空间，为例如资金不足的教育机构提供高质量的信息，同时增强地球静止轨道的使用，稀缺的资源等等。