Polymers of macrocyclic oligomers containing highly expanded graphite
    1.
    发明申请
    Polymers of macrocyclic oligomers containing highly expanded graphite 审中-公开
    含高膨胀石墨的大环低聚物的聚合物

    公开(公告)号:US20080039573A1

    公开(公告)日:2008-02-14

    申请号:US11891259

    申请日:2007-08-09

    IPC分类号: C08K3/04

    CPC分类号: C08G63/78 C08G63/183

    摘要: Composites of a macrocyclic oligomer and expanded graphite particles are prepared. The expanded graphite particles are easily incorporated into the composite at useful levels to provide desirable properties such as good heat distortion temperatures, good heat resistance, and sufficient electroconductivity to make the composite suitable for painting in electrostatic coating processes. The expanded graphite is characterized in having a very low bulk density and high surface area.

    摘要翻译: 制备大环低聚物和膨胀石墨颗粒的复合材料。 膨胀石墨颗粒易于以有用的水平掺入复合材料中,以提供所需的性能,例如良好的热变形温度,良好的耐热性和足够的导电性,以使复合材料适合于在静电涂布工艺中进行涂漆。 膨胀石墨的特征在于具有非常低的堆积密度和高的表面积。

    Method for preparing poly(dicyclopentadiene)
    4.
    发明申请
    Method for preparing poly(dicyclopentadiene) 审中-公开
    制备聚(二环戊二烯)的方法

    公开(公告)号:US20080023884A1

    公开(公告)日:2008-01-31

    申请号:US11879120

    申请日:2007-07-16

    IPC分类号: B29C45/03 C08G61/08

    CPC分类号: C08G61/08 C08F6/006

    摘要: Crosslinked polydicyclopentadiene polymer and copolymer are made by first forming a thermoplastic polymeric intermediate in a ring-opening metathesis polymerization (ROMP), and then crosslinking the intermediate in a melt-processing or solution processing step. The formation of the intermediate permits facile removal of residual monomer, which leads to a reduction in odor and improvement in physical properties. Crosslinking can be achieved using various crosslinking strategies, including further ROMP reactions, addition polymerization of residual double bonds, addition of a crosslinking agent or introduction of functional groups.

    摘要翻译: 交联的聚二聚环戊二烯聚合物和共聚物通过首先在开环易位聚合(ROMP)中形成热塑性聚合物中间体,然后在熔融加工或溶液处理步骤中交联中间体来制备。 中间体的形成允许容易地去除残留的单体,这导致气味的降低和物理性能的改善。 可以使用各种交联策略实现交联,包括进一步的ROMP反应,残余双键的加成聚合,加入交联剂或引入官能团。