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22 条记录 (耗时 0.013 秒)

    Processing of polar polymers and mixtures obtained thereby
    11.
    发明公开
    Processing of polar polymers and mixtures obtained thereby 失效
    Verarbeiten polarer Polymere und so erhaltene Mischungen。

    公开(公告)号：EP0560496A1

    公开(公告)日：1993-09-15

    申请号：EP93301041.5

    申请日：1993-02-12

    申请人： ROHM AND HAAS COMPANY

    发明人： Ilenda, Casmir Stanislaus ,  Williams, Donald Robert

    IPC分类号： C08L101/00

    CPC分类号： C08L23/02 ,  C08F255/02 ,  C08L27/06 ,  C08L51/06 ,  C08L101/00 ,  C08F220/12 ,  C08L2666/24 ,  C08L2666/02

    摘要： Segmented copolymers of polyolefins with relatively high molecular weight poly(methacrylate) segments, known to be useful as melt strength additives for polyolefins and compatibilizers for blends of polyolefins and polar polymers, are also useful it levels of about 1 to about 15 weight percent in improving the processing properties of polar polymers, such as by decreasing the time for PVC to flux, by decreasing the temperature and pressure requirements for injection moulding, and by improving the melt strength ABS.

    摘要翻译： 已知可用作聚烯烃的熔体强度添加剂和聚烯烃和极性聚合物共混物的增容剂的聚烯烃与分子量较高的聚（甲基丙烯酸酯）链段的分段共聚物也可用于其改进中约1至约15重量％的水平 极性聚合物的加工性能，例如通过降低注射成型的温度和压力要求，以及通过提高熔体强度ABS来减少PVC流动的时间。

    Solid polyaminoester polymers and their production
    14.
    发明公开
    Solid polyaminoester polymers and their production 失效
    Feste Polymere von Polyaminoestern und ihre Herstellung。

    公开(公告)号：EP0002457A1

    公开(公告)日：1979-06-27

    申请号：EP78101439.4

    申请日：1978-11-22

    申请人： ROHM AND HAAS COMPANY

    发明人： Ilenda, Casmir Stanislaus

    IPC分类号： C08F20/10

    CPC分类号： C08F120/12 ,  C08G73/02

    摘要： Solid polyaminoester polymers containing units of acrylic acid ester monomer having an average acrylate functionality of at least 2.5 and of aliphatic amine monomer having a number average molecular weight of at most 1000, an average amine hydrogen functionality of at least 3 and an amine hydrogen equivalent weight of less than about 100, the equivalent ratio of acrylate to amine hydrogen being 0.5 to 2.0 in order to provide new polymers useful as thermoset plastics and moldable by reaction injection molding or liquid injection molding processes.
    They may be prepared by introducing a monomer mixture containing the acrylate monomer and the amine monomer into a mold and allowing the mixture to react.

    摘要翻译： 含有平均丙烯酸酯官能度至少为2.5的丙烯酸酯单体和数均分子量至多为1000的脂族胺单体，平均胺氢官能度为至少3和胺氢当量重量的固体聚氨基酯聚合物 小于约100，丙烯酸酯与胺氢的当量比为0.5至2.0，以提供可用作热固性塑料的新型聚合物，并可通过反应注射成型或液体注射成型工艺成型。 它们可以通过将含有丙烯酸酯单体和胺单体的单体混合物引入模具中并使混合物反应来制备。

    Acrylic flexible light pipe of improved photo-thermal stability
    17.
    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。

    Graft copolymers and blends thereof with polyolefins
    19.
    发明公开
    Graft copolymers and blends thereof with polyolefins 失效
    共聚物及其与聚烯烃的共混物

    公开(公告)号：EP0335649A3

    公开(公告)日：1991-07-10

    申请号：EP89303029.6

    申请日：1989-03-28

    申请人： ROHM AND HAAS COMPANY

    发明人： Ilenda, Casmir Stanislaus ,  Work, William James ,  Graham, Roger Kenneth ,  Bortnick, Newman

    IPC分类号： C08F255/00 ,  C08L57/00

    CPC分类号： C08L51/06 ,  C08F255/00 ,  C08F255/02 ,  C08L23/02 ,  C08L23/10 ,  C08L25/04 ,  C08L27/04 ,  C08L67/00 ,  C08L77/00 ,  C08L2205/08 ,  C08F220/18 ,  C08L2666/24 ,  C08L2666/14 ,  C08L2666/04

    摘要： A novel graft copolymer capable of imparting to a polyolefin when blended therewith a good balance of tensile modulus, sag resistance and melt viscosity, is a polyolefin trunk having a, preferably relatively high weight-average molecular weight, methacrylate polymer chain grafted thereto. The graft copolymer is formed by dissolving a non-polar polyolefin in an inert hydrocarbon solvent, and, while stirring the mixture, adding methacrylate monomer together with initiator to produce a constant, low concentration of radicals, and covalently graft a polymer chain, preferably of relatively high molecular weight, to the polyolefin backbone. The graft copolymer can be separated from the solvent, by volatilizing the solvent, for example in a devolatilizing extruder, and pelletised or extruded or otherwise shaped into a desired shape such as a sheet, tube or the like. This graft copolymer can be blended with a polyolefin matrix to improve its physical properties in the melt, upon cooling, and in the solid state, and is useful in cast and oriented films, solid extruded rod and profile, foamed rod, profile and sheet and blown bottles. The graft copolymer can also be used to improve compatibility between polymers in a wide range of polymer blends.