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130 条记录 (耗时 0.02 秒)

    Determining the reaction progress of graft polymerization reactions
    2.
    发明授权
    Determining the reaction progress of graft polymerization reactions 失效
    确定接枝聚合反应的反应进程

    公开(公告)号：US07122379B2

    公开(公告)日：2006-10-17

    申请号：US10281597

    申请日：2002-10-28

    申请人： Udo Wolf ,  Ralf-Jürgen Born ,  Vera Buchholz ,  Herbert Eichenauer ,  Eckhard Wenz ,  Wilhelm Bergmeier ,  Christof Boden

    发明人： Udo Wolf ,  Ralf-Jürgen Born ,  Vera Buchholz ,  Herbert Eichenauer ,  Eckhard Wenz ,  Wilhelm Bergmeier ,  Christof Boden

    IPC分类号： G01N24/00 ,  G01N33/44

    CPC分类号： C08F279/04 ,  G01N21/65 ,  G01N2021/656 ,  Y10T436/24

    摘要： A method of using Raman Spectra for determining the progress of a graft polymerization reaction is disclosed. The method entails (a) measuring at the beginning of the reaction and at a plurality of time intervals in the course of the reaction, continuously and on-site, the Raman spectrum in the wave number range of 100 to 4000 cm−1 of one or more of the monomers and/or polymers entailed in the reaction and of at least one internal standard and (b) recording the spectra and (c) adding reaction partners necessary to the reaction continuously and/or discontinuously and (d) calculating the change in concentration of the monomers and polymers by comparing the spectra of the monomers or polymers with the internal standard.

    摘要翻译： 公开了一种使用拉曼光谱测定接枝聚合反应进程的方法。 该方法需要（a）在反应开始时和在反应过程中以多​​个时间间隔连续和现场测量波数范围为100至4000cm -1的拉曼光谱， 反应中所含的一种或多种单体和/或聚合物中的1种和至少一种内标，和（b）记录光谱，和（c）连续和/或不连续地加入反应所需的反应伴侣 和（d）通过将单体或聚合物的光谱与内标进行比较来计算单体和聚合物的浓度变化。

    Thermoplastic molding materials based on special graft rubber components
    5.
    发明授权
    Thermoplastic molding materials based on special graft rubber components 失效
    基于特殊接枝橡胶成分的热塑性成型材料

    公开(公告)号：US06828380B2

    公开(公告)日：2004-12-07

    申请号：US10220707

    申请日：2002-11-21

    申请人： Liqing-Lee Sun ,  Eckhard Wenz ,  Herbert Eichenauer ,  Stefan Moss ,  Heinrich Alberts ,  Hans-Bernhard Hauertmann ,  Karl Zabrocki ,  Hans-Erich Gasche ,  Ulrich Jansen

    发明人： Liqing-Lee Sun ,  Eckhard Wenz ,  Herbert Eichenauer ,  Stefan Moss ,  Heinrich Alberts ,  Hans-Bernhard Hauertmann ,  Karl Zabrocki ,  Hans-Erich Gasche ,  Ulrich Jansen

    IPC分类号： C08L5502

    CPC分类号： C08L51/04 ,  C08F279/02 ,  C08F279/04 ,  C08L55/02 ,  C08L2666/14 ,  C08L2666/02

    摘要： A molding composition having good surface gloss, high elongation at break and good thermoplastic processability is disclosed. The composition contains (A) a graft polymer that is obtained by free-radical polymerization of resin-forming vinyl monomers in the presence of rubber in latex form, (B) a copolymer of styrene and acrylonitrile and an optional (C) a resin selected from the group consisting of polycarbonates, polyester-carbonates, polyesters and polyamides. The preparation of the graft polymer is characterized in that (i) before the start of the grafting polymerization reaction the rubber latex is brought to a pH of 9 to 11, (ii) the redox initiator components are employed in amounts of 0.1 to 2.5 wt. % (based on the monomers metered in) and (iii) during the entire grafting polymerization reaction the pH remains constant±0.5 and in the range of 11.0 to 8.8, and (iv) the temperature difference between the start and end of the reaction is at least 10° C.

    摘要翻译： 公开了具有良好的表面光泽度，高断裂伸长率和良好的热塑性加工性能的成型组合物。 该组合物含有（A）通过在胶乳形式的橡胶存在下形成树脂的乙烯基单体的自由基聚合获得的接枝聚合物，（B）苯乙烯和丙烯腈的共聚物和任选的（C）树脂选择 由聚碳酸酯，聚酯 - 碳酸酯，聚酯和聚酰胺组成。 接枝聚合物的制备的特征在于：（i）在接枝聚合反应开始之前，使橡胶胶乳的pH值达到9至11，（ii）氧化还原引发剂组分的用量为0.1至2.5重量％ 。 ％（基于计量的单体）和（iii）在整个接枝聚合反应期间，pH保持恒定±0.5且在11.0至8.8的范围内，和（iv）反应开始和结束之间的温度差为 至少10℃

    Process for working up emulsion polymers
    6.
    发明授权
    Process for working up emulsion polymers 失效
    加工乳液聚合物的方法

    公开(公告)号：US06747124B2

    公开(公告)日：2004-06-08

    申请号：US10017302

    申请日：2001-12-14

    申请人： Herbert Eichenauer ,  Stefan Moss

    发明人： Herbert Eichenauer ,  Stefan Moss

    IPC分类号： C08J303

    CPC分类号： C08C1/15 ,  C08F6/22 ,  Y10S528/934 ,  Y10S528/936

    摘要： A process for working up polymer components prepared by emulsion polymerization is disclosed. The process is characterized in that coagulation of the aqueous polymer latex present after emulsion polymerization is performed using a combination of A) an aqueous solution of at least one salt selected from the group consisting of sodium chloride, calcium chloride, magnesium chloride, aluminum chloride, sodium sulfate, magnesium sulfate and aluminum sulfate, B) an aqueous solution of at least one salt of an acid selected from the group consisting of hypophosphorous acid (H3PO2), phosphorous acid (H3PO3 or HPO2) and ascorbic acid and optionally C) an aqueous dilute acid selected from the group consisting of sulfuric acid, phosphoric acid and acetic acid.

    摘要翻译： 公开了通过乳液聚合制备聚合物组分的方法。 该方法的特征在于，乳液聚合之后存在的聚合物胶乳的凝结是使用以下组合进行的：A）至少一种选自氯化钠，氯化钙，氯化镁，氯化铝， 硫酸钠，硫酸镁和硫酸铝，B）至少一种选自次磷酸（H3PO2），亚磷酸（H 3 PO 3或HPO 2）和抗坏血酸的酸的盐的水溶液和任选的C）水性 选自硫酸，磷酸和乙酸的稀酸。

    ABS-moulding compounds with an improved combination of properties
    8.
    发明授权
    ABS-moulding compounds with an improved combination of properties 失效
    ABS成型化合物具有改进的性能组合

    公开(公告)号：US06384133B1

    公开(公告)日：2002-05-07

    申请号：US09831853

    申请日：2001-05-15

    申请人： Herbert Eichenauer

    发明人： Herbert Eichenauer

    IPC分类号： C08L5502

    CPC分类号： C08L55/02 ,  C08L2666/14 ,  C08L2666/04

    摘要： A thermoplastic molding composition having improved mechanical properties is disclosed. The ABS composition that comprise a graft rubber polymer obtained by emulsion polymerization in the presence of specifically defined butadiene polymer latices and a rubber-free copolymer is suitable for making molded articles.

    摘要翻译： 公开了具有改进的机械性能的热塑性模塑组合物。 在具体限定的丁二烯聚合物胶乳和无橡胶共聚物的存在下，通过乳液聚合获得的包含接枝橡胶聚合物的ABS组合物适于制备模制品。