Diamond-like carbon optical waveguide
    14.
    发明授权
    Diamond-like carbon optical waveguide 失效
    类金刚石碳光波导

    公开(公告)号:US5629532A

    公开(公告)日:1997-05-13

    申请号:US473245

    申请日:1995-06-07

    Inventor: James J. Myrick

    Abstract: An optical circuit device has a carbon optical waveguide structure which has a substrate. A first carbon layer is atop the substrate and has a first refractive index. A carbon optical waveguide core is positioned atop the first layer and has a second refractive index different than the first refractive index. A cladding layer of carbon is positioned atop the first layer and the waveguide core and has a third refractive index different than the refractive index of the waveguide core.

    Abstract translation: 光电路装置具有具有基板的碳光波导结构。 第一碳层位于衬底顶部并具有第一折射率。 碳光波导芯位于第一层的顶部并且具有与第一折射率不同的第二折射率。 碳包层位于第一层和波导芯之上,并且具有与波导芯的折射率不同的第三折射率。

    Enzymatic method for preparing transesterified oils
    15.
    发明授权
    Enzymatic method for preparing transesterified oils 失效
    酯交换油的制备方法

    公开(公告)号:US5288619A

    公开(公告)日:1994-02-22

    申请号:US897255

    申请日:1992-06-11

    Abstract: An enzymatic transesterification method for preparing a margarine oil having both low trans- acid and low intermediate chain fatty acid content is disclosed. The method includes the steps of providing a transesterification reaction mixture containing a stearic acid source material and an edible liquid vegetable oil, transesterifying the stearic acid source material and the vegetable oil using a 1-, 3-positionally specific lipase, and then finally hydrogenating the fatty acid mixture to provide a recycle stearic acid source material for a recyclic reaction with the vegetable oil. Also described is a counter-current method for preparing a transesterified oil. The method includes the steps of providing a transesterification reaction zone containing a 1-, 3-positionally specific lipase, introducing a vegetable oil into the transesterification zone, introducing a stearic acid source material, conducting a supercritical gas or subcritical liquified gas counter-current fluid, carrying out a transesterification reaction of the triglyceride stream with the stearic acid or stearic acid monoester stream in the reaction zone, withdrawing a transesterified triglyceride margarine oil stream, withdrawing a counter-current fluid phase, hydrogenating the transesterified stearic acid or stearic acid monoester to provide a hydrogenated recycle stearic acid source material, and introducing the hydrogenated recycle stearic acid source material into the reaction zone.

    Abstract translation: 公开了一种用于制备具有低转基因和低中链脂肪酸含量的人造黄油的酶促酯交换方法。 该方法包括以下步骤:提供含有硬脂酸源材料和可食用液体植物油的酯交换反应混合物,使用1-,3-位特异性脂肪酶将硬脂酸源材料和植物油进行酯交换,然后最终将 脂肪酸混合物以提供用于与植物油循环反应的循环硬脂酸源材料。 还描述了制备酯交换油的逆流方法。 该方法包括以下步骤:提供含有1-位3位特异性脂肪酶的酯交换反应区,将植物油引入酯交换区,引入硬脂酸源材料,导入超临界气体或亚临界液化气逆流流体 在反应区域中进行甘油三酯物流与硬脂酸或硬脂酸单酯物流的酯交换反应,取出酯交换甘油三酯人造黄油油流,取出逆流流体相,将酯交换的硬脂酸或硬脂酸单酯氢化为 提供氢化循环硬脂酸源材料,并将氢化的再循环硬脂酸源材料引入反应区。

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