Method for fabricating conductive particle and anisotropic conductive film using the same
    3.
    发明申请
    Method for fabricating conductive particle and anisotropic conductive film using the same 审中-公开
    使用该方法制造导电粒子和各向异性导电膜的方法

    公开(公告)号:US20070098976A1

    公开(公告)日:2007-05-03

    申请号:US11583863

    申请日:2006-10-20

    IPC分类号: B05D7/00 B32B5/16

    摘要: The present invention relates to a method for fabricating a conductive particle, the method comprising steps of: (a) preparing a particle based on a macromolecular resin; (b) forming a layer of a nano powder on a surface of the particle; and (c) subjecting the layer of the nano powder to an electroless plating. In accordance with the present invention, a nano powder is bonded on a particle based on a macromolecular resin and an electroless conductive layer is plated such that a pretreatment process of a plating process for forming a conductive particle is omitted and the plating process is simplified from twice to once, thereby reducing a toxic substance generated in a conventional process to improve a stability of the process and reduce a manufacturing cost.

    摘要翻译: 本发明涉及一种制造导电颗粒的方法,所述方法包括以下步骤:(a)制备基于大分子树脂的颗粒; (b)在所述颗粒的表面上形成纳米粉末层; 和(c)使纳米粉末层进行化学镀。 根据本发明,将纳米粉末基于大分子树脂粘合在颗粒上,并且镀覆无电导电层,从而省略了用于形成导电颗粒的电镀工艺的预处理工艺,并且电镀工艺从 两次一次,从而减少常规方法中产生的有毒物质,以提高该方法的稳定性并降低制造成本。

    Stereoselective preparation of (E)-enolthioether derivatives
    4.
    发明授权
    Stereoselective preparation of (E)-enolthioether derivatives 失效
    (E) - 烯醇硫醚衍生物的立体选择性制备

    公开(公告)号:US5591881A

    公开(公告)日:1997-01-07

    申请号:US512507

    申请日:1995-08-08

    CPC分类号: C07F7/1892

    摘要: A process for stereoselective preparation of (E)-enolthioether derivatives comprising the steps of;(a) protecting free secondary hydroxy group of L-threonine with trialkylsilyl group; (b) the protected L-threonine derivatives (I) being degraded by ninhydrin to prepare (2R)-2-(trialkylsilyloxy)propanal (II); and (c) carting out the Honor-Wordsworth-Emons (HWE) reaction of the resultant compound (II) with stabilized phosphonate ylide, phosphonium ylide or phosphine oxide ylide which was obtained by treating the organic phosphine compound (III) with strong base to provide (E)-enolthioether derivatives (IV) is provided.The present invention has advantages in comparison with the prior art in that the costs required for the process can be lowered because L-threonine, an .alpha.-amino acid of low in price is used as a starting material and the process is simple; and the desired (E)-enolthioether derivatives can be prepared with high stereoselectivity.

    摘要翻译: (E) - 烯醇硫醚衍生物的立体选择性制备方法,包括以下步骤: (a)用三烷基甲硅烷基保护L-苏氨酸的游离仲羟基; (b)被茚三酮降解的受保护的L-苏氨酸衍生物(I)制备(2R)-2-(三烷基甲硅烷氧基)丙醛(II); 和(c)将所得化合物(II)与通过用强碱处理有机膦化合物(III)获得的稳定的膦酸内叶,鏻内鎓盐或氧化膦叶立德进行荣誉 - 华兹华 - 埃蒙斯(HWE)反应, 提供(E) - 烯醇硫醚衍生物(IV)。 本发明与现有技术相比具有优点,因为可以降低该方法所需的成本,因为L-苏氨酸(价格低廉的α-氨基酸)用作起始原料,方法简单; 并且可以以高立体选择性制备所需的(E) - 烯醇硫醚衍生物。