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28 条记录 (耗时 0.016 秒)

    Method for the devolatilization of thermoplastic materials
    1.
    发明授权
    Method for the devolatilization of thermoplastic materials 失效
    热塑性材料脱挥发分的方法

    公开(公告)号：US4952672A

    公开(公告)日：1990-08-28

    申请号：US152264

    申请日：1988-08-11

    申请人： Eugene R. Moore ,  Robert A. Hay, II

    发明人： Eugene R. Moore ,  Robert A. Hay, II

    IPC分类号： B01J19/28 ,  C08F6/00

    CPC分类号： C08F6/005 ,  B01J19/28 ,  B01J2208/00168 ,  B01J2208/0053 ,  B01J2208/00548

    摘要： This invention is a method and an apparatus for rapidly devolatilizing a product of a polymerization process containing at least one volatile material. The product is initially devolatilized in a high temperature zone, and the foamed devolatilized product is separated into a gas and a liquid polymer phase and rapidly removed therefrom to minimize depolymerization and degradation of the polymer. The partially devolatilized product is further devolatilized by feeding it into a rotatable chamber which is rotated at a sufficient angular velocity to create a high gravitational field to form a vapor and a polymer liquid pool.

    摘要翻译： 本发明是用于将包含至少一种挥发性物质的聚合方法的产品快速脱挥发的方法和装置。 该产品最初在高温区域脱挥发分，并将发泡的脱挥发分产物分离成气体和液体聚合物相并迅速从其中除去，以使聚合物的解聚和降解最小化。 部分脱挥发分的产品通过将其送入可旋转的室中进一步脱挥发分，该室以足够的角速度旋转以产生高重力场以形成蒸气和聚合物液体池。

    Centrifugal devolatilizer
    2.
    发明授权
    Centrifugal devolatilizer 失效
    离心脱挥器

    公开(公告)号：US4940472A

    公开(公告)日：1990-07-10

    申请号：US297371

    申请日：1989-01-17

    申请人： Robert A. Hay, II ,  Albert C. Dowell

    发明人： Robert A. Hay, II ,  Albert C. Dowell

    IPC分类号： B01D19/00 ,  B01J19/28 ,  C08F6/00

    CPC分类号： B01D19/0057 ,  B01J19/28 ,  C08F6/005 ,  B01J2219/00085 ,  B01J2219/00159 ,  B01J2219/00164 ,  B01J2219/00166 ,  B01J2219/00168 ,  B01J2219/00189

    摘要： A devolatilization apparatus is provided which removes volatiles from a variety of polymer products utilizing centrifugal forces to control the residence time of the polymer in the devolatilizer. Volatiles are efficiently removed without degrading the polymer product. The devolatilizer includes a rotatable annular chamber having an inlet, a first outlet located at a first distance from the axis of rotation of the chamber, and a second outlet located at a second distance from the axis of rotation of the chamber. Means are also provided for supplying a polymer, in liquid form, to the inlet to the annular chamber. The portion of the chamber located between the first and second outlets forms an annular pocket or subchamber. The apparatus also includes means to rotate the annular chamber at a speed sufficient to cause the liquid polymer to flow through the first and second outlets and form liquid seals at each of the outlets. A vacuum source communicating with the annular pocket is provided for removing the volatile constituents from the liquid polymer.

    摘要翻译： 提供了一种脱挥发分装置，其利用离心力从各种聚合物产物中除去挥发物，以控制聚合物在脱挥发物中的停留时间。 有效去除挥发物而不降解聚合物产物。 脱挥器包括可旋转的环形室，其具有入口，位于距室的旋转轴线第一距离处的第一出口和位于距室的旋转轴线第二距离的第二出口。 还提供了用于将液体形式的聚合物供应到环形室的入口的装置。 位于第一和第二出口之间的室的部分形成环形袋或子室。 该设备还包括以足以使液体聚合物流过第一和第二出口并在每个出口处形成液体密封的速度来旋转环形室的装置。 提供与环形袋连通的真空源，用于从液体聚合物中除去挥发性成分。

    Very smooth and flat polycrystalline alumina substrates from direct firing
    3.
    发明授权
    Very smooth and flat polycrystalline alumina substrates from direct firing 失效
    非常光滑和扁平的多晶氧化铝基材直接烧制

    公开(公告)号：US4678762A

    公开(公告)日：1987-07-07

    申请号：US787240

    申请日：1985-10-15

    申请人： Anil K. Agarwal ,  Robert A. Hay

    发明人： Anil K. Agarwal ,  Robert A. Hay

    IPC分类号： C04B33/28 ,  C04B35/111 ,  C04B35/634 ,  C04B35/10

    CPC分类号： C04B35/6342 ,  C04B33/28 ,  C04B35/111 ,  C04B35/634

    摘要： This invention provides thin, flat, water-impervious polycrystalline ceramic bodies composed of at least 99.5% by weight alumina, predominantly in the alpha crystal form. These bodies have a density of at least 3.9 Mg/m.sup.3, an average surface roughness of 44 nm or less, typically 40 nm or less. The properties of the finished ceramic bodies make them ideal substrates for highly reliable electronic components, especially for high temperature environments. Processes for obtaining such bodies by direct firing of slip cast tapes are also described.

    摘要翻译： 本发明提供由至少99.5重量％的氧化铝组成的薄的，平坦的，不透水的多晶陶瓷体，主要是α晶形。 这些体的密度至少为3.9Mg / m 3，平均表面粗糙度为44nm以下，通常为40nm以下。 成品陶瓷体的性能使其成为高可靠性电子元件的理想基材，特别适用于高温环境。 还描述了通过直接烧制滑移胶带获得这种体的方法。

    Bowless eyeglasses holder
    5.
    发明授权
    Bowless eyeglasses holder 失效
    无弓眼镜架

    公开(公告)号：US4105026A

    公开(公告)日：1978-08-08

    申请号：US745327

    申请日：1976-11-26

    申请人： Robert A. Hay, II

    发明人： Robert A. Hay, II

    IPC分类号： A62B18/08 ,  A62B9/00

    CPC分类号： A62B18/082

    摘要： Bowless eyeglasses are fixed to a mask, such as a gas mask, by a bowless eyeglasses holder. A preferred holder has a U-shaped configuration formed from a single, generally rod-shaped, resilient, elongated element. The legs of the U are adapted to engage the mask at the inner surface of the mask housing and the base of the U contains a hook-shaped configuration adapted to engaging the bowless eyeglasses.

    摘要翻译： 无弓眼镜由无弓眼镜架固定在掩模上，如防毒面具。 优选的保持器具有由单个通常为棒状的弹性细长元件形成的U形构造。 U的腿部适于在掩模壳体的内表面处接合掩模，并且U的基部包含适于接合无弓眼镜的钩形构造。

    Laminate preparation and application thereof
    6.
    发明授权
    Laminate preparation and application thereof 失效
    层压制品及其应用

    公开(公告)号：US4049852A

    公开(公告)日：1977-09-20

    申请号：US609468

    申请日：1975-09-02

    申请人： Hubert Stacy Smith, Jr. ,  Robert A. Hay, II

    发明人： Hubert Stacy Smith, Jr. ,  Robert A. Hay, II

    IPC分类号： B32B5/18 ,  B29C59/00 ,  B29C63/00 ,  B29C67/00 ,  B29C67/20 ,  B32B37/00 ,  F17C13/00 ,  B32B3/26

    CPC分类号： F17C13/001 ,  F17C2203/03 ,  F17C2223/0161 ,  Y10T156/1025 ,  Y10T428/183 ,  Y10T428/233 ,  Y10T428/24999

    摘要： A laminate of foam planks is prepared by bonding closed cell foam slabs to either side of a foraminous reinforcing skin, applying a second skin to one side of the laminate formed. In formation of the laminate, the ends of adjacent foam slabs are butted together under mild pressure. The resultant laminate is particularly suitable for the preparation of spirally generated thermal insulation about a vessel wherein the second skin is disposed remote from the vessel. An insulation strip or laminate having very satisfactory performance is obtained with a minimal number of processing steps.

    摘要翻译： 通过将闭孔泡沫板粘合到多孔增强皮肤的任一侧，将第二皮肤施加到形成的层压体的一侧来制备泡沫板的层压材料。 在层压体的形成中，相邻泡沫板的端部在温和的压力下对接在一起。 所得到的层压材料特别适用于围绕容器制备螺旋产生的热绝缘体，其中第二皮肤远离容器设置。 通过最少的处理步骤获得具有非常令人满意的性能的绝缘条或层压板。

    Flat plate heat exchange apparatus
    8.
    发明授权
    Flat plate heat exchange apparatus 失效
    平板式热交换装置

    公开(公告)号：US4423767A

    公开(公告)日：1984-01-03

    申请号：US465726

    申请日：1983-02-11

    申请人： Robert A. Hay, II ,  Charles C. Crugher, III

    发明人： Robert A. Hay, II ,  Charles C. Crugher, III

    IPC分类号： F28D7/10 ,  F28F3/10 ,  F28F9/02 ,  F28F9/22 ,  F28D1/00

    CPC分类号： F28D7/103 ,  F28F3/10 ,  F28F9/0241

    摘要： A heat exchange assembly is provided which employs concentric flat plate heaters, the heat exchange assembly having a common fixed tube sheet and floating tube sheet; the floating tube sheet comprising two concentric portions having frustoconical interface thereby, the frustoconical interface when projected has its apex in a plane containing the adjacent face of the fixed tube sheet in the axis of generation of the flat plate heater. Thermal stress on the floating tube sheet is thereby relieved. The heat exchanger is useful as a reactor particularly where the temperature profile of the material flowing therethrough is controlled or varied.

    摘要翻译： 提供一种使用同心平板式加热器的热交换组件，该热交换组件具有共同的固定管板和浮动管板; 该浮动管片包括具有截头圆锥形界面的两个同心部分，当投影时的截头圆锥形界面的顶点在包含平板式加热器产生轴线的固定管板的相邻面的平面内。 因此浮动管板上的热应力得以缓解。 热交换器可用作反应器，特别是在流过其中的材料的温度分布被控制或变化的情况下。