Method for the suspension polymerization of conjugated dienes
    1.
    发明授权
    Method for the suspension polymerization of conjugated dienes 失效
    共轭二烯的悬浮聚合方法

    公开(公告)号:US06350833B1

    公开(公告)日:2002-02-26

    申请号:US09556007

    申请日:2000-04-20

    IPC分类号: C08F414

    CPC分类号: C08F36/04 C08F4/545

    摘要: This invention relates to a method for the suspension polymerization of conjugated dienes in hydrocarbon mixtures comprising a fraction by volume greater than 80% of C4 hydrocarbons wherein polymerization is conducted in the presence of a rare earth compound, of one or more aluminum compounds, and optionally of an additional Lewis acid. The invention further relates to the polymers which can be produced according to the present invention and to the use thereof for the production of moldings of all types, particularly tires and industrial rubber products, and for blending with polystyrene (HIPS).

    摘要翻译: 本发明涉及一种在烃混合物中悬浮聚合共轭二烯的方法,其包含一个体积比大于80%的C4烃的分馏体积,其中聚合在稀土化合物存在下进行,一种或多种铝化合物,以及任选的 的另外的路易斯酸。 本发明还涉及可根据本发明生产的聚合物及其用于生产所有类型的模制品,特别是轮胎和工业橡胶产品以及与聚苯乙烯(HIPS)共混的用途。

    Method for detecting mutagenic substances
    7.
    发明申请
    Method for detecting mutagenic substances 审中-公开
    诱变物质检测方法

    公开(公告)号:US20050070006A1

    公开(公告)日:2005-03-31

    申请号:US10482790

    申请日:2002-06-25

    摘要: The invention relates to a method and means for the rapid identification of mutations. The test strains used in the invention contain a reporter system and a selection marker. An antibiotic resistance protein which after mutation allows the selective growth of the revertant and the targeted induction of the inducible reporter system of the developing revertants acts as the selection marker. Proteins that are capable of directly or indirectly triggering a measuring signal are used as the reporters. The mutations are identified by means of the reporter signal of the developing revertants, in such a way that the evaluation can take place after only a few hours.

    摘要翻译: 本发明涉及快速鉴定突变的方法和手段。 本发明中使用的测试菌株含有报道系统和选择标记。 突变后的抗生素抗性蛋白质允许回复体的选择性生长,并且靶向诱导发育中的反转体的诱导型报告系统作为选择标记物。 能够直接或间接触发测量信号的蛋白质被用作记者。 通过发展中的回复体的报道信号鉴定突变,使得评价仅在几小时后才能发生。