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31 条记录 (耗时 0.015 秒)

    A process of preparing glutaric-anhydride-containing copolymers
    4.
    发明公开
    A process of preparing glutaric-anhydride-containing copolymers 失效
    Verfahren zur Herstellung von Glutaranhydrid enthaltenden Copolymeren。

    公开(公告)号：EP0318197A2

    公开(公告)日：1989-05-31

    申请号：EP88310756.7

    申请日：1988-11-15

    申请人： ROHM AND HAAS COMPANY

    发明人： Hallden-Abberton, Michael Paul ,  Cohen, Leslie Alan ,  Wood, Robert Stewart

    IPC分类号： C08F8/48 ,  C08F8/32

    CPC分类号： C08F8/32 ,  C08F2800/10 ,  C08F8/44 ,  C08F120/14 ,  C08F220/14

    摘要： Thermoplastic copolymers of glutaric anhydride and (meth)acrylic esters are prepared free of acid groups by reacting a (meth)acrylic ester polymer with a secondary amine at from 150° to 400°C. Where the secondary amine is sufficiently volatile, any excess is removed at above 160°C and below 26.6 kPA. The copolymers are amorphous, soluble, non-crosslinked and low acid. They may be blended with other polymers, formed into plastic articles, or swelled with cross-linking agents.

    摘要翻译： 通过在150-400℃下使（甲基）丙烯酸酯聚合物与仲胺反应制备戊二酸酐和（甲基）丙烯酸酯的热塑性共聚物，不含酸基团。当仲胺具有足够的挥发性时，任何过量的 在160摄氏度以下，26.6 kPA以下。 共聚物是无定形的，可溶的，非交联的和低酸的。 它们可以与形成塑料制品的其它聚合物共混，或者用交联剂溶胀。

    Acrylic flexible light pipe of improved photo-thermal stability
    6.
    发明公开
    Acrylic flexible light pipe of improved photo-thermal stability 失效
    Flexibler Acryl-Lichtleiter von verbesserter Licht- undThermostabilität

    公开(公告)号：EP0849315A1

    公开(公告)日：1998-06-24

    申请号：EP97309822.1

    申请日：1997-12-05

    申请人： ROHM AND HAAS COMPANY

    发明人： Ilenda, Casmir Stanislaus ,  Johnson, Phelps Brian ,  Hallden-Abberton, Michael Paul

    IPC分类号： C08K5/00 ,  C08L33/06 ,  C08L43/04 ,  B29B11/14 ,  B29D11/00

    CPC分类号： C08K5/005 ,  B29C47/00 ,  B29C47/0023 ,  G02B1/046 ,  G02B6/02033 ,  Y10T428/2933 ,  C08L33/06 ,  C08L43/04

    摘要： Acrylic light pipe has adequate thermal and photo-thermal stability for many purposes, but is deficient in maintaining clarity, color, and good optical properties under conditions of exposure to high temperatures, especially in combination with exposure for lengthy periods to passage of light. Improved thermal stability, as reflected in reduced color formation, can be imparted by adjusting the polymerization conditions to produce the uncured core polymer of the core/clad construction with a much reduced terminal vinyl content, preferably below 0.5 vinyl groups/ 1000 monomer units. This process improvement, in combination with selected addition of a combination of certain hindered phenols and hydrolytically stable organic phosphites, together produce a substantial improvement in the resistance to discoloration under photo-thermal conditions, while maintaining the resistance to discoloration under thermal conditions. The known process conditions which do not yield lower terminal vinyl content, in combination with the selected additives, also produce acrylic light pipe with greatly improved photo-thermal stability.

    摘要翻译： 丙烯酸光管具有足够的热和光热稳定性用于许多目的，但是在暴露于高温的条件下特别是结合长时间曝光以及通过光的组合，在保持透明度，颜色和良好的光学性能方面是缺陷的。 可以通过调节聚合条件来提供改善的热稳定性，通过调节聚合条件来制备核/包层结构的未固化的核心聚合物，其末端乙烯基含量大大降低，优选低于0.5个乙烯基/ 1000个单体单元。 与所选择的某些受阻酚和水解稳定的有机亚磷酸酯的组合的加入相结合的该方法的改进一起在光热条件下在耐变色性方面显着提高，同时保持耐热条件下的变色性。 不产生较低的末端乙烯基含量的已知工艺条件与选择的添加剂组合也产生具有大大改善的光热稳定性的丙烯酸光管。

    Compatible polymeric blends
    8.
    发明公开
    Compatible polymeric blends 失效
    VerträglichePolymermischungen。

    公开(公告)号：EP0500361A2

    公开(公告)日：1992-08-26

    申请号：EP92301394.0

    申请日：1992-02-20

    申请人： ROHM AND HAAS COMPANY

    发明人： Harvey, Noel Gray ,  Bortnick, Newman Mayer ,  Hallden-Abberton, Michael Paul ,  Queenan, Robin Bepler ,  Goldman, Theodore Daniel

    IPC分类号： C08L33/24 ,  C08L101/00 ,  C08L33/02

    CPC分类号： C08L33/02 ,  C08L101/00 ,  C08L2205/08 ,  C08L2666/02

    摘要： Reactive copolymers of alkyl methacrylates containing glutaric anhydride units are useful in compatibilizing blends of two or more polymers to improve physical properties of the blend. The reactive copolymers are especially useful when the polymers to be blended are incompatible with each other, but separately compatible with the reactive copolymer. Compatibilization by the reactive copolymer may be enhanced in some cases by catalysis of the grafting reaction between the reactive copolymer and one or more of the polymers to be blended.

    摘要翻译： 含有戊二酸酐单元的甲基丙烯酸烷基酯的反应性共聚物可用于相容化两种或多种聚合物的共混物以改善共混物的物理性质。 当待共混的聚合物彼此不相容但与反应性共聚物分开相容时，反应性共聚物是特别有用的。 通过反应性共聚物与一种或多种待混合的聚合物之间的接枝反应的催化，在一些情况下可以增强反应性共聚物的相容性。

    Polymer blends
    10.
    发明公开
    Polymer blends 失效
    聚合物共混物

    公开(公告)号：EP0536934A1

    公开(公告)日：1993-04-14

    申请号：EP92308892.6

    申请日：1992-09-30

    申请人： ROHM AND HAAS COMPANY

    发明人： Hallden-Abberton, Michael Paul ,  Wills, William Louis

    IPC分类号： C08L51/04 ,  C08L51/00 ,  C08L33/06 ,  C08L25/02

    CPC分类号： C08L33/06 ,  C08L25/02 ,  C08L51/04 ,  Y10S525/902 ,  Y10T428/1397 ,  C08L2666/24

    摘要： Polymer blends comprising 55 to 95 weight % acrylic vinyl aromatic matrix polymers and 5 to 45 weight % of certain core-shell polymers of less than 400 nanometer average particle diameter and with a core derived from crosslinked conjugated diolegin, vinyl and polyvinyl monomers having a toluene swell ratio of 7 to 35, and a shell containing units of vinyl aromatic monomer may provide good impact strength and clarity properties.

    摘要翻译： 包含55至95重量％丙烯酸乙烯基芳族基体聚合物和5至45重量％小于400纳米平均粒径的某些核 - 壳聚合物并具有衍生自交联共轭二烯烃的核的聚合物共混物，乙烯基和聚乙烯基单体具有甲苯 7至35的溶胀比和含有乙烯基芳族单体单元的壳可以提供良好的冲击强度和透明性。