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    Antifreeze composition concentrate containing oxyalkylene compound and an organic phosphate surface modifier compound
    4.
    发明授权
    Antifreeze composition concentrate containing oxyalkylene compound and an organic phosphate surface modifier compound 失效
    含有氧化烯化合物和有机磷酸盐表面改性剂的防冻剂组合物浓缩物

    公开(公告)号：US5073283A

    公开(公告)日：1991-12-17

    申请号：US336530

    申请日：1989-04-10

    申请人： Pak S. Leung ,  Errol D. Goddard

    发明人： Pak S. Leung ,  Errol D. Goddard

    IPC分类号： C09K5/20

    CPC分类号： C09K5/20

    摘要： Antifreeze composition and composition concentrates are disclosed which comprise an alcohol, such as, for example ethylene glycol, a surface modifier, such as, for example, an organophosphate which adheres to the interior surfaces of a cooling system, and a pseudo oil, such as, for example a polypropylene glycol, which forms a film on the surface-modified, interior surfaces of the cooling system. Also disclosed are methods of making and using the composition and composition concentrates.

    摘要翻译： 公开了防冻组合物和组合物浓缩物，其包含醇，例如乙二醇，表面改性剂，例如粘附到冷却系统的内表面的有机磷酸酯，以及假油，例如 ，例如聚丙二醇，其在冷却系统的表面改性的内表面上形成膜。 还公开了制备和使用组合物和组合物浓缩物的方法。

    Dry, particulate, inorganic ultrafiltration membranes and the production thereof
    10.
    发明授权
    Dry, particulate, inorganic ultrafiltration membranes and the production thereof 失效
    干燥，颗粒状，无机超滤膜及其生产

    公开(公告)号：US4412921A

    公开(公告)日：1983-11-01

    申请号：US254488

    申请日：1981-04-15

    申请人： Pak S. Leung ,  Anthony R. Cacciola

    发明人： Pak S. Leung ,  Anthony R. Cacciola

    IPC分类号： B01D71/02 ,  B01D31/00

    CPC分类号： B01D71/024 ,  B01D61/145 ,  B01D63/02 ,  B01D63/021 ,  B01D63/06 ,  B01D63/08 ,  B01D63/10 ,  B01D67/0041 ,  B01D71/02 ,  B01D2323/08

    摘要： A coating is applied to a microporous support in the presence of a volatile liquid capable of drawing the coating into the support and of desolvating the coating. The liquid is thereafter volatilized with the resulting dry ultrafiltration membrane being essentially crack-free and having desirable mechanical and chemical stability. The support may be pretreated with a volatile liquid, such as acetone, prior to the applying of the coating to the support. Alternately, the coating material can be dispersed in a volatile liquid, such as methanol, to form a coating suspension that is applied to the support. The coating material, preferably zirconia, will have a particle size within the range of from about 5 m.mu. to about 10.mu., with the coating having a thickness of up to about 20.mu.. The support, such as a porous carbon tube, will have a pore volume of about 5-60% and a pore size of about 5 m.mu.-40.mu.. Stability is enhanced by firing the membrane at 25.degree. C.-1500.degree. C. preferably at about 400.degree. C.-600.degree. C.

    摘要翻译： 在能够将涂层拉入载体并使涂层脱溶的挥发性液体的存在下，将涂层施加到微孔载体上。 然后液体挥发，所得的干燥超滤膜基本上是无裂纹的并且具有期望的机械和化学稳定性。 在将涂层施加到载体之前，载体可以用挥发性液体如丙酮预处理。 或者，涂层材料可以分散在诸如甲醇的挥发性液体中以形成施加到载体上的涂层悬浮液。 涂层材料，优选氧化锆，其粒度范围为约5微米至约10微米，涂层的厚度可达20微米。 载体如多孔碳管将具有约5-60％的孔体积和约5微米-40微米的孔径。 通过在25℃-1500℃下焙烧膜来提高稳定性，优选在约400℃-600℃