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12 条记录 (耗时 0.044 秒)

    METHOD AND APPARATUS FOR CHARACTERIZING POLYMERS
    1.
    发明申请
    METHOD AND APPARATUS FOR CHARACTERIZING POLYMERS 审中-公开
    用于表征聚合物的方法和装置

    公开(公告)号：US20120085151A1

    公开(公告)日：2012-04-12

    申请号：US13251744

    申请日：2011-10-03

    申请人： Stephan Konrad ,  Stefanie Braun ,  Johann Rechner ,  Rainer Knopf ,  Tom Foubert ,  Franky Bruynseels ,  Maarten De Bock

    发明人： Stephan Konrad ,  Stefanie Braun ,  Johann Rechner ,  Rainer Knopf ,  Tom Foubert ,  Franky Bruynseels ,  Maarten De Bock

    IPC分类号： G01N11/02

    CPC分类号： G01N30/88 ,  B29C48/03 ,  G01N11/00 ,  G01N2011/006

    摘要： The present invention relates to a method for automatically determining the relative solution viscosity and/or the melt volume flow rate of a polymer, during a phase of the process for producing the polymer, where the polymer is in a solution with 10 to 20% by weight of the polymer in an organic solvent. The method includes continuously removing a substream of the polymer solution from a component of the process for producing the polymer, wherein the polymer solution is essentially free from inorganic salts; removing a sample having a volume of from 1 to 10 μl from the substream; introducing the sample into a gel permeation chromatography apparatus and determining the gel permeation chromatography data for the polymer; and automatically determining the relative solution viscosity and/or the melt volume flow rate of the polymer from the data obtained from the gel permeation chromatogram, on the basis of calibration relationships.

    摘要翻译： 本发明涉及在生产聚合物的方法阶段期间自动确定聚合物的相对溶液粘度和/或熔融体积流动速率的方法，其中聚合物在具有10至20％ 聚合物在有机溶剂中的重量。 该方法包括从生产聚合物的方法的组分连续地除去聚合物溶液的子流，其中聚合物溶液基本上不含无机盐; 从子流中除去体积为1至10μl的样品; 将样品引入凝胶渗透色谱装置并测定聚合物的凝胶渗透色谱数据; 并且根据校准关系，根据从凝胶渗透色谱图获得的数据自动确定聚合物的相对溶液粘度和/或熔体体积流速。

    Method of producing polycarbonates
    4.
    发明授权
    Method of producing polycarbonates 失效
    生产聚碳酸酯的方法

    公开(公告)号：US06835798B1

    公开(公告)日：2004-12-28

    申请号：US10111925

    申请日：2002-08-05

    申请人： Michael Bödiger ,  Steffen Kühling ,  Franky Bruynseels ,  Dirk van Meirvenne ,  René de Cleyn

    发明人： Michael Bödiger ,  Steffen Kühling ,  Franky Bruynseels ,  Dirk van Meirvenne ,  René de Cleyn

    IPC分类号： C08G6400

    CPC分类号： C08G64/24 ,  G11B7/2534

    摘要： A process for the preparation of polycarbonate by the phase boundary process is disclosed. The process entails reacting at least one dihydroxydiarylalkane in the form of its alkali metal salts with phosgene in the heterogeneous phase in the presence of sodium hydroxide solution and an organic solvent. The process is characterized in that the feedstock have but low content of Fe, Cr, Ni, Zn, Ca, Mg, Al metals or homologues thereof, and in that the organic solvent is separated off, and in that the polycarbonate which is obtained is worked up. The resulting polycarbonate is particularly useful in producing transparent shaped articles.

    摘要翻译： 公开了通过相边界法制备聚碳酸酯的方法。 该方法需要在氢氧化钠溶液和有机溶剂的存在下使至少一种其碱金属盐形式的二羟基二芳基烷烃与光气在非均相中反应。 该方法的特征在于，原料具有Fe，Cr，Ni，Zn，Ca，Mg，Al金属或其同系物的含量低，并且分离出有机溶剂，并且得到的聚碳酸酯是 工作了。 所得聚碳酸酯特别可用于制造透明成型制品。

    POLYCARBONATE COMPOSITION HAVING IMPROVED OPTICAL AND THERMAL PROPERTIES
    5.
    发明申请
    POLYCARBONATE COMPOSITION HAVING IMPROVED OPTICAL AND THERMAL PROPERTIES 有权
    具有改善的光学和热性质的聚碳酸酯组合物

    公开(公告)号：US20130123423A1

    公开(公告)日：2013-05-16

    申请号：US13640985

    申请日：2011-04-08

    申请人： Karl-Heinz Köhler ,  Franky Bruynseels

    发明人： Karl-Heinz Köhler ,  Franky Bruynseels

    IPC分类号： C08G64/06

    CPC分类号： C08G64/06 ,  C08G64/24 ,  C08L69/00

    摘要： The invention relates to aromatic polycarbonates which comprise dioxydiarylcycloalkane structural units, and which have improved optical and thermal properties. It also relates to an improved process to produce the said polycarbonates from dihydroxydiphenylcyloalkanes, and also to mixtures of these polycarbonates with polymers, with fillers, with dyes and with conventional additives.

    摘要翻译： 本发明涉及包含二氧二芳基环烷烃结构单元并具有改进的光学和热性能的芳族聚碳酸酯。 它还涉及从二羟基二苯基环烷烃生产所述聚碳酸酯的改进方法，以及这些聚碳酸酯与聚合物，填料与染料和常规添加剂的混合物。

    Polycarbonate for making extruded films that are virtually free of surface defects
    9.
    发明授权
    Polycarbonate for making extruded films that are virtually free of surface defects 有权
    用于制造实际上没有表面缺陷的挤出薄膜的聚碳酸酯

    公开(公告)号：US08084570B2

    公开(公告)日：2011-12-27

    申请号：US11977586

    申请日：2007-10-25

    申请人： Heinz Pudleiner ,  Wolfgang Ebert ,  Alexander Meyer ,  Klaus Meyer ,  Alexander Karbach ,  Franky Bruynseels

    发明人： Heinz Pudleiner ,  Wolfgang Ebert ,  Alexander Meyer ,  Klaus Meyer ,  Alexander Karbach ,  Franky Bruynseels

    IPC分类号： C08G64/00

    CPC分类号： C08J5/18 ,  C08G64/406 ,  C08J2369/00

    摘要： Linear polycarbonate resin virtually free of surface defects that impair the suitability of the resin for demanding optical application is disclosed. Also disclosed is a process for the manufacture of the resin. The surface defects included in the resin are in the form of transparent fluorescing particles, the particle count of which portion that are 15 and 250 μm in size, is up to 1.8 counts/g, said count being determined by exciting the residue remaining after filtering a solution of said polycarbonate in methylene chloride through a Teflon filter of 5 μm pore size at a wavelength of 400-440 nm, 25× overall magnification and illumination time of 40 millisec. The polycarbonate is suitable for making films of improved optical properties.

    摘要翻译： 公开了实质上没有表面缺陷的线性聚碳酸酯树脂，其损害了用于要求光学应用的树脂的适用性。 还公开了用于制造树脂的方法。 包含在树脂中的表面缺陷是透明荧光颗粒的形式，其尺寸为15和250μm的部分的颗粒数量达到1.8个计数/ g，所述计数通过激发过滤后剩余的残余物来确定 所述聚碳酸酯在二氯甲烷中的溶液通过孔径为5μm的Teflon过滤器，波长为400-440nm，总体放大倍数为25×，照射时间为40毫秒。 聚碳酸酯适用于制备改善光学性能的薄膜。