Dye compositions and methods for film coating tablets and the like
    53.
    发明授权
    Dye compositions and methods for film coating tablets and the like 失效
    染料组合物和薄膜包衣片剂等的方法

    公开(公告)号:US5411746A

    公开(公告)日:1995-05-02

    申请号:US21785

    申请日:1993-02-24

    CPC分类号: A61K9/28

    摘要: An improved dye composition for use in coating tablets and the like is constituted by a stable, aqueous suspension containing a water-soluble, nontoxic dye, an opacifying agent which may be titanium dioxide or iron oxide an immobilizing agent for immobilizing the dye and preventing it from migrating when applied to a tablet or the like, the immobilizing agent being constituted by a nontoxic metal salt present in an amount of from approximately 0.1 to 10 equivalents of metal per mole of dye, and water. The suspension may also contain a film-forming, water-soluble or water-dispersible edible polymer and a plasticizer. These compositions are used in lieu of lake compositions to produce tablets and the like with uniform, non-mottled coatings.

    摘要翻译: 用于包衣片等的改进的染料组合物由含有水溶性无毒染料的稳定的含水悬浮液,可以是二氧化钛或氧化铁的遮光剂构成,用于固定染料并防止染料的固定剂 当施用于片剂等时迁移,固定剂由每摩尔染料约0.1至10当量金属和水存在的无毒金属盐构成。 悬浮液还可以含有成膜剂,水溶性或水分散性可食用聚合物和增塑剂。 这些组合物用于代替湖泊组合物以产生具有均匀的非斑驳涂层的片剂等。

    Device for detection of air/fuel ratio from oxygen partial pressure in
exhaust gas
    58.
    发明授权
    Device for detection of air/fuel ratio from oxygen partial pressure in exhaust gas 失效
    用于检测废气中氧气分压的空气/燃料比的装置

    公开(公告)号:US4264425A

    公开(公告)日:1981-04-28

    申请号:US152857

    申请日:1980-05-23

    CPC分类号: G01N27/4071 G01N27/417

    摘要: A device having an oxygen sensing probe to be disposed in a combustion gas to detect actual air/fuel ratio values of an air-fuel mixture subjected to combustion. The probe is a combination of two oxygen concentration cells each having a porous solid electrolyte layer such as of zirconia, a porous measurement electrode layer on one side of the solid electrolyte layer and a reference electrode layer on the other side, with a shield layer thereon. Either the shield layers of the two cells or the solid electrolyte layers of the two cells are provided by a single layer which serves also as a substrate of the entire probe. The device includes DC power supply means for forcing a current to flow through the solid electrolyte of each cell thereby to cause oxygen ions to migrate through each solid electrolyte layer, from the reference electrode layer to the measurement electrode layer in one cell and reversely in the other cell. Both air/fuel ratios above a stoichiometric ratio inclusive and air/fuel ratios below the soichiometric ratio inclusive can be detected by this device.

    摘要翻译: 一种具有氧传感探针的装置,其设置在燃烧气体中,以检测经历燃烧的空气 - 燃料混合物的实际空气/燃料比值。 探针是两个氧浓缩电池的组合,每个氧浓度电池具有诸如氧化锆的多孔固体电解质层,在固体电解质层的一侧上的多孔测量电极层和另一侧上的参考电极层,其上具有屏蔽层 。 两个电池的屏蔽层或两个电池的固体电解质层中的任一个都由用作整个探针的基底的单层提供。 该装置包括用于迫使电流流过每个电池的固体电解质的直流电源装置,从而使氧离子从一个电池中的参考电极层到测量电极层通过每个固体电解质层迁移,并且在 其他细胞 可以通过该装置检测到高于化学计量比的空气/燃料比以及低于化学计量比的空气/燃料比。