PROCESS FOR DETERMINING SURFACE CONTAMINATION OF POLYCRYSTALLINE SILICON
    1.
    发明申请
    PROCESS FOR DETERMINING SURFACE CONTAMINATION OF POLYCRYSTALLINE SILICON 审中-公开
    用于测定多晶硅表面污染的方法

    公开(公告)号:US20130186325A1

    公开(公告)日:2013-07-25

    申请号:US13738973

    申请日:2013-01-10

    摘要: The invention provides a process for determining surface contamination of polycrystalline silicon, including the steps of: a) providing two polycrystalline silicon rods by deposition in a Siemens reactor; b) determining contaminants in the first of the two rods immediately after the deposition; c) conducting the second rod through one or more systems in which polycrystalline silicon rods are processed further to give rod pieces or polysilicon fragments, optionally cleaned, stored or packed; d) then determining contaminants in the second rod; wherein the difference in the contaminants determined in the first and second rods gives surface contamination of polycrystalline silicon resulting from systems and the system environment.

    摘要翻译: 本发明提供了一种确定多晶硅表面污染的方法,包括以下步骤:a)通过沉积在西门子反应器中提供两个多晶硅棒; b)在沉积之后立即确定两个棒中的第一个棒中的污染物; c)通过一个或多个系统导入第二杆,其中进一步处理多晶硅棒以产生棒片或多晶硅片段,任选地清洁,储存或包装; d)然后确定第二杆中的污染物; 其中在第一和第二棒中确定的污染物中的差别产生由系统和系统环境导致的多晶硅的表面污染。

    HYDROPHOBIC CEMENTITIOUS COMPOSITION
    3.
    发明申请
    HYDROPHOBIC CEMENTITIOUS COMPOSITION 有权
    疏水化学组成

    公开(公告)号:US20130005864A1

    公开(公告)日:2013-01-03

    申请号:US13531782

    申请日:2012-06-25

    申请人: Robert BAUMANN

    发明人: Robert BAUMANN

    IPC分类号: C04B24/26

    摘要: The invention relates to a cementitious composition that can effectively reduce the adsorption of water, which comprises a) at least one polymer that is the polymerization product of one or more ethylenically unsaturated monomers, in the form of their polymer dispersions and water-redispersible polymer powders; and b) at least one alkyl and/or alkenyl substituted dicarboxylic acids or anhydrides.

    摘要翻译: 本发明涉及一种可有效降低水分吸收的水泥质组合物,其包括:a)至少一种作为其一种或多种烯属不饱和单体的聚合产物的聚合物,其聚合物分散体和水可再分散聚合物粉末形式 ; 和b)至少一种烷基和/或烯基取代的二羧酸或酸酐。

    PROCESS FOR PREPARING AMINOPOLYCARBOXYLATES
    6.
    发明申请
    PROCESS FOR PREPARING AMINOPOLYCARBOXYLATES 有权
    制备氨基羟基羧酸酯的方法

    公开(公告)号:US20120302783A1

    公开(公告)日:2012-11-29

    申请号:US13437093

    申请日:2012-04-02

    IPC分类号: C07C227/02

    CPC分类号: C07C227/02

    摘要: What is proposed is a process for preparing aminopolycarboxylates proceeding from the corresponding polyalkanolamines by oxidative dehydrogenation in the presence of a catalyst comprising 1 to 90% by weight of copper, based on the total weight of the catalyst, using a base, which comprises first performing a partial conversion of the polyalkanolamine to a reaction mixture comprising the aminopolycarboxylate at a temperature in the range from 140 to 180° C. until at least 10 to 90 mol % of the polyalkanolamine has been depleted, and then continuing the conversion at elevated temperature.

    摘要翻译: 提出的是一种制备在相应的聚链烷醇胺上通过氧化脱氢在催化剂存在下进行的氨基多羧酸盐的方法,所述催化剂包含1至90重量%的铜,基于催化剂的总重量,使用碱,其包括首先进行 在140〜180℃的温度范围内将聚链烷醇胺部分转化成含有氨基多羧酸盐的反应混合物,直到聚链烷醇胺的至少10〜90摩尔%已经耗尽,然后在升高的温度下继续转化。