Process for Producing Ultrafine Powders Based on Polyamides, Ultrafine Polyamide Powders and Their Use
    4.
    发明申请
    Process for Producing Ultrafine Powders Based on Polyamides, Ultrafine Polyamide Powders and Their Use 有权
    基于聚酰胺,超细聚酰胺粉末生产超细粉的方法及其应用

    公开(公告)号:US20080249237A1

    公开(公告)日:2008-10-09

    申请号:US12089998

    申请日:2006-10-12

    摘要: Process for preparing ultrafine powders based on polyamides by contacting polyamides having a relative solution viscosity ηrel in the range from 1.5 to 2.0, measured in 0.5% m-cresol solution at 25° C., with an alcoholic medium in the presence of inorganic particles under the action of pressure and/or temperature to generate an at least partial solution, and then precipitating the polyamide from the at least partial solution, characterized in that a suspension of the inorganic particles suspended in the alcoholic medium is used. The resulting ultrafine polyamide powders have a specific BET surface area in the range of 5-100 m2/g; a fineness d50 of less than 70 μm; an apparent density AD in the range from 250 to 1000 g/l; and a particle content of 0.1 to 80% by weight of inorganic particles based on the total weight of the polyamide powder. They are equally suitable for coatings and for mouldings and components with improved mechanical properties.

    摘要翻译: 通过使具有相对溶液粘度和相对粘度的聚酰胺在25℃下在0.5%间甲酚溶液中测量的1.5至2.0的范围内与醇混合来制备基于聚酰胺的超细粉末的方法 介质在无机颗粒存在下在压力和/或温度的作用下产生至少部分溶液,然后从至少部分溶液中沉淀聚酰胺,其特征在于悬浮在醇介质中的无机颗粒的悬浮液 用来。 得到的超细聚酰胺粉末的比BET比表面积为5-100m 2 / g; 细度d <50%小于70μm; 在250〜1000g / l范围内的表观密度AD; 和基于聚酰胺粉末的总重量的无机颗粒的0.1〜80重量%的颗粒含量。 它们同样适用于具有改善的机械性能的涂料和模制品和组分。

    Thermoplastic Molding Material and Molding Elements Containing Nanometric Inorganic Particles for Making Said Molding Material and Said Molding Elements, and Uses Thereof
    6.
    发明申请
    Thermoplastic Molding Material and Molding Elements Containing Nanometric Inorganic Particles for Making Said Molding Material and Said Molding Elements, and Uses Thereof 有权
    含有用于制造所述成型材料和所述成型元件的纳米级无机颗粒的热塑性成型材料和成型元件及其用途

    公开(公告)号:US20080161469A1

    公开(公告)日:2008-07-03

    申请号:US11817407

    申请日:2006-04-11

    摘要: (EN) The invention concerns a method for producing a thermoplastic molding material or element, said material or element containing nanometric inorganic particles. In molten state, the thermoplastic is mixed with the nanometric inorganic particles and with a solubilizing agent in a conveyor screw extruder, the pressures and temperatures being adjusted so that the plastic is in melt form and the solubilizing agent in supercritical state. The invention is characterized in that at the output of the extruder, the mixture passes through a slot with a passage less than 20 $g(m)m to penetrate into an expansion zone and the molten material, wherein are incorporated the nanometric inorganic particles, is evacuated, reduced into molding material after cooling or transferred into a molding tool to be molded. The invention also concerns the molding material and the molding elements obtained by this method, as well as the uses thereof.

    摘要翻译: (EN)本发明涉及一种生产热塑性成型材料或元素的方法,所述材料或元素含有纳米无机颗粒。 在熔融状态下,将热塑性塑料与纳米无机颗粒和增溶剂在输送机螺杆挤出机中混合,调节压力和温度,使塑料呈熔体状态,增溶剂处于超临界状态。 本发明的特征在于,在挤出机的输出处,混合物通过具有小于20千克(m)m的通道的槽,以渗入膨胀区,并且其中掺入纳米无机颗粒的熔融材料, 被抽真空,冷却后还原成模制材料或转移到待模制的模具中。 本发明还涉及通过该方法获得的成型材料和成型元件及其用途。

    Multilayer foil
    8.
    发明申请
    Multilayer foil 审中-公开
    多层箔

    公开(公告)号:US20070166560A1

    公开(公告)日:2007-07-19

    申请号:US10589264

    申请日:2005-06-09

    IPC分类号: B32B27/34

    摘要: An adhesion promoter which comprises from 2 to 100% by weight of a copolymer which contains the following monomer units: a) from 70 to 99.9% by weight of monomer units which derive from vinyl compounds selected from acrylic acid derivatives, methacrylic acid derivatives, and vinylaromatics, and also b) from 0.1 to 30% by weight of monomer units which contain a functional group selected from a carboxylic anhydride group, an epoxy group, and an oxazoline group, is used for production of a bond between I. a layer composed of a polyamide molding compound, and II. a part composed of an ABS molding composition.

    摘要翻译: 一种粘合促进剂,其包含2至100重量%的共聚物,其含有以下单体单元:a)70至99.9重量%的衍生自选自丙烯酸衍生物,甲基丙烯酸衍生物和乙烯基化合物的乙烯基化合物的单体单元 乙烯基芳族化合物,以及b)0.1〜30重量%的含有选自羧酸酐基团,环氧基和恶唑啉基团的官能团的单体单元用于生成I. 的聚酰胺模塑料,II。 由ABS成型组合物构成的部分。