Aqueous process for preparing aqueous weight carboxyl containing polymers
    21.
    发明授权
    Aqueous process for preparing aqueous weight carboxyl containing polymers 失效
    用于制备含水重量含羧基聚合物的水性方法

    公开(公告)号:US06335404B1

    公开(公告)日:2002-01-01

    申请号:US08223351

    申请日:1994-04-05

    Abstract: The present invention provides an efficient aqueous polymerization process for preparing a water soluble polymer product having a molecular weight of less than 30,000. The polymer product is formed from about 3 to about 50 weight percent of at least one monoethylenically unsaturated dicarboxylic acid monomer, from about 50 to about 97 weight percent of at least one monoethylenically unsaturated monocarboxylic acid monomer, and from 0 to about 40 weight percent of one or more carboxyl-free monoethylenically unsaturated monomers. The process of the present invention may be run as a batch or continuous process. The process uses at least one chain transfer agent and is conducted at an aqueous solution pH of about 3 or less to keep the molecular weight of the polymer product below 30,000. The polymer product produced by the process of the present invention is useful as an additive in detergents, cleaning formulations, and water circulating systems.

    Abstract translation: 本发明提供了一种用于制备分子量小于30,000的水溶性聚合物产品的有效的水性聚合方法。 聚合物产物由约3至约50重量%的至少一种单烯键式不饱和二羧酸单体,约50至约97重量%的至少一种单烯属不饱和单羧酸单体和0至约40重量% 一种或多种无羧基单烯属不饱和单体。 本发明的方法可以以分批或连续方法进行。 该方法使用至少一种链转移剂,并在约3或更低的水溶液pH下进行,以保持聚合物产物的分子量低于30,000。 通过本发明方法生产的聚合物产品可用作洗涤剂,清洁配方和水循环系统中的添加剂。

    Portable ticket scratching device with vacuum
    22.
    发明授权
    Portable ticket scratching device with vacuum 失效
    带真空便携式刮刮装置

    公开(公告)号:US6065181A

    公开(公告)日:2000-05-23

    申请号:US146498

    申请日:1998-09-03

    CPC classification number: A63F3/068 A47L5/26

    Abstract: A lottery ticket scratching device is provided including a housing adapted to contain at least one battery and a motor assembly including a motor mounted within the housing and including a rotor. Also included is a scratch assembly in communication with the rotor and positioned at an opening of the housing for removing a film from a ticket upon the rotation of the scratch assembly. A switch is connected between the motor and the battery for selectively rotating the scratch assembly.

    Abstract translation: 提供一种彩票刮刮装置,其包括适于容纳至少一个电池的壳体和包括安装在壳体内并包括转子的电动机的电动机组件。 还包括与转子连通并且定位在壳体的开口处的刮擦组件,用于在刮擦组件旋转时从票上移除胶片。 开关连接在电动机和电池之间,用于选择性地旋转刮擦组件。

    Ligand Synthesis
    28.
    发明申请
    Ligand Synthesis 有权
    配体合成

    公开(公告)号:US20070287847A1

    公开(公告)日:2007-12-13

    申请号:US11457996

    申请日:2006-07-17

    CPC classification number: C07F9/5022

    Abstract: Ligand synthesis methods for the preparation of ligands having the formula wherein Q is selected from phosphorus, arsenic and antimony; wherein X1, X2 and X3 are carbon anions; and, wherein R15 is selected from —SO3, —SO2N(R18), —CO2, —PO3, —AsO3, —SiO2, —C(CF3)2O; where R18 is selected from a hydrogen, a halogen, a hydrocarbyl group and a substituted hydrocarbyl group, are disclosed. Also disclosed are methods of complexing the ligands with late transition metals to form catalyst complexes that catalyze polymerization reactions and/or Heck coupling reactions.

    Abstract translation: 用于制备具有下式的配体的配体合成方法其中Q选自磷,砷和锑; 其中X 1,X 2和X 3是碳阴离子; 和其中R 15选自-SO 3,-SO 2 N(R 18), - CO 2,-PO 3,-AsO 3,-SiO 2,-C(CF 3)2, 3 O 2; 其中R 18选自氢,卤素,烃基和取代的烃基。 还公开了使配体与后过渡金属络合以形成催化聚合反应和/或Heck偶联反应的催化剂络合物的方法。

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