Process for the catalytic cyclodimerization of cyclic olefins
    1.
    发明授权
    Process for the catalytic cyclodimerization of cyclic olefins 失效
    环烯烃催化环二聚的方法

    公开(公告)号:US5545790A

    公开(公告)日:1996-08-13

    申请号:US164272

    申请日:1993-12-09

    IPC分类号: C07C2/42 C07C2/00

    摘要: A catalytic process for the dimerization of norbornene and/or norbornadiene using a reduced valence state Group VIB metal oxide as the catalyst, preferably Cr(II) on a porous support such as silica. The product norbornene dimer or norbornadiene dimer is obtained in high yield and high stereospecificity at greater than 90 weight percent of the exo-trans-exo stereoisomer. The norbornene dimer is useful as a high energy density fuel. The norbornadiene dimer can be further functionalized to yield novel chemical intermediates or polymerized or copolymerized with other olefins. The norbornadiene dimer can also be hydrogenated for high energy fuel applications.

    摘要翻译: 使用还原价态VIB族金属氧化物作为催化剂使降冰片烯和/或降冰片二烯二聚的催化方法,优选在多孔载体如二氧化硅上的Cr(II)。 得到的产物降冰片烯二聚体或降冰片二烯二聚物以高产率和高立体定向性获得,其大于90重量%的外 - 反 - 立体异构体。 降冰片烯二聚体可用作高能量密度燃料。 降冰片二烯二聚体可以进一步官能化以产生新的化学中间体或与其它烯烃聚合或共聚。 降冰片二烯二聚体也可以被氢化用于高能燃料应用。

    Alkylated anisole lubricant basestock
    4.
    发明授权
    Alkylated anisole lubricant basestock 失效
    烷基化苯甲醚润滑剂基础油料

    公开(公告)号:US5750480A

    公开(公告)日:1998-05-12

    申请号:US619867

    申请日:1996-03-18

    CPC分类号: C10M105/18 C10M2207/04

    摘要: A process and composition is disclosed for a hydrolytically stable lubricant base oil exhibiting superior antiwear properties, dispersancy, thermal stability and oxidative stability. The base oil comprises a mixture of mono, di and tri alkylated anisole having the following structure: ##STR1## wherein R.sup.a, R.sup.b and R.sup.c are hydrogen with at least one of R.sup.a, R.sup.b and R.sup.c comprises a secondary alkyl radical containing 8 to 24 carbon atoms.

    摘要翻译: 公开了表现出优异的抗磨损性,分散性,热稳定性和氧化稳定性的水解稳定的润滑剂基础油的方法和组合物。 基油包含具有以下结构的单,二和三烷基化茴香醚的混合物:其中Ra,Rb和Rc是氢,Ra,Rb和Rc中的至少一个包括含有8-24个碳原子的仲烷基 原子