Phase transfer catalyst for synthesis of pentaerythritol diphosphites
    5.
    发明授权
    Phase transfer catalyst for synthesis of pentaerythritol diphosphites 失效
    用于合成季戊四醇二亚磷酸酯的相转移催化剂

    公开(公告)号:US08278490B2

    公开(公告)日:2012-10-02

    申请号:US12838694

    申请日:2010-07-19

    IPC分类号: C07C9/576

    CPC分类号: C07F9/65746

    摘要: The present invention pertains to a process for the preparation of pentaerythritol diphosphites via a one-pot, direct esterification of phosphorus trichloride with pentaerithritol, and either an alkylphenol or an arylalkylphenol which functions both as a reactant and as a solvent, with a phase transfer catalyst such as a quaternary ammonium salt.

    摘要翻译: 本发明涉及一种通过一磷酸三苯酯与五硫代三醇的直接酯化反应制备季戊四醇二亚磷酸酯的方法,以及作为反应物和溶剂作用的烷基酚或芳基烷基苯与相转移催化剂 例如季铵盐。

    Crosslinker for modified asphalt
    10.
    发明申请
    Crosslinker for modified asphalt 失效
    改性沥青交联剂

    公开(公告)号:US20050032942A1

    公开(公告)日:2005-02-10

    申请号:US10841596

    申请日:2004-05-07

    IPC分类号: C08J3/00 C08L31/02 C08L95/00

    摘要: The present invention relates to compositions and methods for providing an improved means of modifying asphalt with a polymer. More particularly, this invention provides a crosslinking system to improve the properties of polymer modified asphalt. Compositions of the present invention contain asphalt, a rubber or elastomeric polymer, and a crosslinkable component, particularly a bismaleimide or a bismaleimide in combination with a difunctional crosslinkable monomer.

    摘要翻译: 本发明涉及提供用聚合物改性沥青的改进方法的组合物和方法。 更具体地说,本发明提供了改善聚合物改性沥青性能的交联体系。 本发明的组合物包含沥青,橡胶或弹性聚合物,以及可交联组分,特别是双马来酰亚胺或双马来酰亚胺与双官能交联单体的组合。