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    Nanometric TiO2-catalyzed production of polyamides
    3.
    发明授权
    Nanometric TiO2-catalyzed production of polyamides 失效
    纳米TiO2催化聚酰胺的生产

    公开(公告)号：US06593448B2

    公开(公告)日：2003-07-15

    申请号：US09887047

    申请日：2001-06-25

    申请人： Dominique Kayser ,  Jean-François Thierry ,  Joël Varlet

    发明人： Dominique Kayser ,  Jean-François Thierry ,  Joël Varlet

    IPC分类号： C08G6904

    CPC分类号： C08G69/18 ,  C08G69/04 ,  C08G69/28

    摘要： (Co)polyamides, for example the polyamides 6 and 66, are prepared via the improvedly catalyzed polycondensation of (co)polyamide-forming (co)monomers, even in the presence of normally catalyst-inhibiting matting agents (e.g., microparticulate TiO2), the catalyst therefor comprising solid nanometric TiO2 particulates having diameters of less than 100 nm.

    摘要翻译： （Co）聚酰胺，例如聚酰胺6和66，通过（共）聚酰胺形成（共）单体的改进催化缩聚制备，即使在通常催化剂抑制消光剂（例如，微粒TiO 2）的存在下， 其催化剂包含直径小于100nm的固体纳米TiO 2颗粒。

    Thermoplastic polymer composition comprising a hyperbranched polymer and articles made using said composition
    4.
    发明授权
    Thermoplastic polymer composition comprising a hyperbranched polymer and articles made using said composition 失效
    包含超支化聚合物和使用所述组合物制备的制品的热塑性聚合物组合物

    公开(公告)号：US07507474B2

    公开(公告)日：2009-03-24

    申请号：US10498255

    申请日：2002-12-16

    申请人： Joël Varlet ,  Florence Clement ,  Franck Touraud ,  Sandrine Rochat ,  Natalia Scherbakoff

    发明人： Joël Varlet ,  Florence Clement ,  Franck Touraud ,  Sandrine Rochat ,  Natalia Scherbakoff

    IPC分类号： C08G69/02 ,  C08G69/08 ,  C08G63/00 ,  C08G73/10 ,  C08G69/26

    CPC分类号： C08G83/005 ,  C08G83/002 ,  C08L101/005 ,  Y10S424/16 ,  Y10T428/29 ,  Y10T428/2913 ,  C08L2666/14

    摘要： The invention relates to thermoplastic compositions comprising a polymer matrix and an additive which modifies the rheological behavior of the matrix in the molten state. The purpose of the invention is to provide a preferably non-reactive additive which can be dispersed in the matrix and which can be used to obtain a good compromise in terms of rheological properties/mechanical properties. According to the invention, the additive is a hyperbranched polymer which is functionalized by R radicals, R being a radical of the following type: substituted or non-substituted hydrocarbon, of the silicon type, linear or branched alkyl, aromatic, arylalkyl, alkylaryl or cycloaliphatic, which can comprise one or more unsaturations and/or one or more heteroatoms. Preferably, the composition does not contain hyperbranched polymers which produce therein a reduction in the molar mass of matrix M which is greater than or equal to 7% in relation to a sample composition which comprises matrix M but which does not contain hyperbranched polymer additive(s). Said mass measurement is taken preferably using a predetermined protocol P. The invention is suitable for molding, extrusion, engineered plastics, wires and fibers.

    摘要翻译： 本发明涉及包含聚合物基质和添加剂的热塑性组合物，其改变熔融状态下的基质的流变行为。 本发明的目的是提供一种优选的非反应性添加剂，其可以分散在基质中，并且可用于在流变性/机械性能方面获得良好的折中。 根据本发明，添加剂是由R 2基团官能化的超支化聚合物，R 2是下列类型的基团：硅型，直链或支链烷基的取代或未取代的烃， 芳基，芳烷基，烷基芳基或脂环族，其可以包含一个或多个不饱和基团和/或一个或多个杂原子。 优选地，组合物不含有超支化聚合物，其在其中产生相对于包含基质M但不含超支化聚合物添加剂的样品组合物大于或等于7％的基质M的摩尔质量的降低 ）。 所述质量测量优选使用预定方案P.本发明适用于模制，挤出，工程塑料，线和纤维。