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    Polymerization catalyst used for producing polyolefins that have excellent combined properties
    23.
    发明授权
    Polymerization catalyst used for producing polyolefins that have excellent combined properties 有权
    用于生产具有优异组合性能的聚烯烃的聚合催化剂

    公开(公告)号：US06897181B2

    公开(公告)日：2005-05-24

    申请号：US10276618

    申请日：2001-05-14

    Applicant: Shahram Mihan ,  Martin Lux ,  Wolfgang Rohde ,  Andreas Deckers ,  Peter Kölle ,  Heinz Vogt

    Inventor： Shahram Mihan ,  Martin Lux ,  Wolfgang Rohde ,  Andreas Deckers ,  Peter Kölle ,  Heinz Vogt

    IPC: C08F4/02 ,  C08F4/24 ,  C08F10/00 ,  C08F10/02 ,  B01J27/06 ,  B01J13/00 ,  B01J21/08 ,  B01J35/08 ,  C01B33/12

    CPC classification number: C08F10/02 ,  C08F4/24

    Abstract: The invention relates to a process for preparing a catalyst for the polymerization of olefins, which comprises: a) preparation of a finely divided silica xerogel, b) loading of the xerogel with chromium from a solution of chromium trioxide or a chromium compound which is converted into chromium trioxide under the conditions of step c), and c) activation of the resulting product at from 400 to 1100° C. in a water-free gas stream comprising oxygen in a concentration of above 10% by volume, wherein a fluoride doping with a fluorinating agent is carried out in step b) or in step c). Furthermore, the invention relates to a catalyst for the polymerization of olefins which is obtainable by the process of the invention and to a process for the polymerization of olefins in which an olefin or an olefin mixture is polymerized in the presence of a catalyst according to the invention.

    Abstract translation: 本发明涉及一种制备烯烃聚合催化剂的方法，该方法包括：a）制备细碎的二氧化硅干凝胶，b）用铬从三氧化铬溶液或铬化合物的溶液中加载干凝胶， 在步骤c）的条件下转化为三氧化铬，和c）在含有浓度高于10体积％的氧的无水气流中，在400至1100℃下活化所得产物，其中氟化物掺杂 在步骤b）或步骤c）中进行氟化剂。 此外，本发明涉及可通过本发明的方法获得的烯烃聚合催化剂和烯烃聚合方法，其中烯烃或烯烃混合物在催化剂存在下聚合，根据 发明。

    Polyolefinic molding composition having improved resistance to thermooxidative degradation and its use for the production of pipes
    26.
    发明授权
    Polyolefinic molding composition having improved resistance to thermooxidative degradation and its use for the production of pipes 有权
    具有改善的抗热氧化降解性的聚烯烃成型组合物及其用于生产管道的用途

    公开(公告)号：US08728370B2

    公开(公告)日：2014-05-20

    申请号：US11920310

    申请日：2006-05-06

    Applicant: Heinz Vogt ,  Hansjörg Nitz

    Inventor： Heinz Vogt ,  Hansjörg Nitz

    IPC: D01D5/24

    CPC classification number: C08K5/06 ,  C08L9/00 ,  C08L23/02 ,  C08L23/04 ,  C08L23/06 ,  C08L23/0892 ,  C08L23/10 ,  C08L71/00 ,  C08L71/02 ,  C08L2666/22 ,  C08L2666/02 ,  C08L2666/06

    Abstract: A molding composition is suitable for the production of pipes having improved resistance to thermooxidative degradation when these pipes are in long-term contact with liquids comprising disinfectants having an oxidizing effect. Such molding composition comprises, in addition to thermoplastic polyolefins, a polyoxy compound and/or a polyhydroxy compound as additive in an amount of from 0.01 to 1.0% by weight. In addition, the molding composition can further comprise an unsaturated aliphatic hydrocarbon in an amount of up to 5% by weight. The invention also relates to a process for improving the long-term resistance of water pipes to damage caused by oxidizing disinfectants from the water by use of this molding composition.

    Abstract translation: 当这些管与包含具有氧化作用的消毒剂的液体长期接触时，模制组合物适用于生产具有改善的抗热氧化降解性的管道。 除了热塑性聚烯烃之外，这种成型组合物还包含0.01至1.0重量％的作为添加剂的聚合化合物和/或多羟基化合物。 此外，模塑组合物可以进一步包含至多5重量％的量的不饱和脂族烃。 本发明还涉及一种通过使用该成型组合物来改善水管长期耐受水从氧化消毒剂引起的损伤的方法。

    Thermoplastic Polymeric Composition with Improved Resistance to Thermo-Oxidative Degradation and Use Thereof for Producing Pipes
    29.
    发明申请
    Thermoplastic Polymeric Composition with Improved Resistance to Thermo-Oxidative Degradation and Use Thereof for Producing Pipes 审中-公开
    热塑性聚合物组合物具有改善的耐热氧化降解能力和用于生产管道

    公开(公告)号：US20120031495A1

    公开(公告)日：2012-02-09

    申请号：US13264152

    申请日：2010-04-23

    Applicant: Heinz Vogt ,  Hansjörg Nitz

    Inventor： Heinz Vogt ,  Hansjörg Nitz

    IPC: F15D1/00 ,  B32B1/08 ,  B29C47/20 ,  C08K5/3437 ,  C08K5/18

    CPC classification number: F16L9/127 ,  Y10T137/0318 ,  Y10T428/139

    Abstract: A polyolefinic moulding composition is suitable for producing pipes with improved resistance to thermo-oxidative degradation when these pipes are in extended contact with liquids which contain disinfectants with an oxidative action. Beside thermoplastic polyolefins, the moulding composition additionally contains specific aromatic amines which are liquid under standard conditions as an additive. The invention also relates to a pipe made from the moulding composition and to a process for improving the long-term resistance of water pipework made of plastics to damage by disinfectants with an oxidative action from the water by the use of this moulding composition.

    Abstract translation: 当这些管与含有具有氧化作用的消毒剂的液体延伸接触时，聚烯烃模制组合物适用于生产具有改善的耐热氧化降解性的管道。 除了热塑性聚烯烃之外，模塑组合物另外含有在标准条件下为液体的特定芳族胺作为添加剂。 本发明还涉及一种由模塑组合物制成的管以及通过使用该模制组合物改进由塑料制成的水管道的长期耐受性的方法，所述管道由具有来自水的氧化作用的消毒剂损坏。

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