Process To Produce Polyalphaolefins
    79.
    发明申请
    Process To Produce Polyalphaolefins 有权
    生产聚α-烯烃的方法

    公开(公告)号:US20090036725A1

    公开(公告)日:2009-02-05

    申请号:US11832287

    申请日:2007-08-01

    IPC分类号: C07C2/02

    摘要: The present invention relates to processes to produce liquid poly-alpha-olefins comprising: a) contacting in a reaction zone, in the presence of from 0 to 60 psi hydrogen, one or more C3 to C20 alpha-olefin monomers with a non-coordinating anion activator, a single bridged meso-metallocene transition metal compound having less than about 35 wt % racemic isomer, and a co-activator selected from the group consisting of alkyl aluminum compounds and alkyl alumoxanes, provided that when the alkyl alumoxane is present it is present in a molar ratio of less than 0.1:1 of alkylalumoxane to meso-metallocene, and provided that when the alkyl aluminum compound is present it is present at a molar ratio of alkyl aluminum to meso-metallocene of from 2:1 to 10,000 to 1, where the molar ratio of activator to meso-metallocene is from 10:1 to 0.1:1, and provided that ethylene is not present at more than 30 volume % of the monomers entering the reaction zone, and provided that the alpha-olefin monomers in the feed components are present in at least 20 wt % or more based upon the weight of the meso-metallocene, non-coordinating anion activator, co-activator, monomers, and solvent or diluent, and where: i) the productivity of the process is at least 50,000 g of total product per gram of transition metal compound (where the total product is defined to be the total amount of product exiting the reactor, minus unreacted monomers and solvents); and ii) no more than 5% monomer is converted from olefin to alkane; and b) obtaining a liquid polyalphaolefin product having a pour point of less than 25° C., a KV100 of 2 to 6000 cSt, 20 weight percent dimer or less and a viscosity index of 60 or more.

    摘要翻译: 本发明涉及制备液体聚-α-烯烃的方法,包括:a)在0至60psi氢气存在下,在反应区中使一个或多个C 3至C 20α-烯烃单体与非配位的 阴离子活化剂,具有小于约35重量%外消旋异构体的单桥连的内消旋 - 金属茂过渡金属化合物,以及选自烷基铝化合物和烷基铝氧烷的共活化剂,条件是当烷基铝氧烷存在时,它是 以烷基铝氧烷与内消旋金属茂的摩尔比小于0.1:1存在,并且当烷基铝化合物存在时,其烷基铝与内消旋金属茂的摩尔比为2:1至10,000至 1,其中活化剂与内消旋金属茂的摩尔比为10:1至0.1:1,并且条件是进入反应区的单体的体积百分比不超过30体积%,并且条件是α-烯烃 单体i 基于内消旋金属茂,非配位阴离子活化剂,共活化剂,单体和溶剂或稀释剂的重量,进料组分以至少20重量%或更多的重量存在,其中:i) 每克过渡金属化合物的总产物至少为50,000g(其中总产物定义为离开反应器的产物的总量,减去未反应的单体和溶剂); 和ii)不超过5%的单体从烯烃转化为烷烃; 和b)获得倾点小于25℃,KV100为2至6000cSt,20重量%二聚物或更低,粘度指数为60以上的液体聚α-烯烃产物。

    Alkylaromatic lubricant fluids
    80.
    发明申请
    Alkylaromatic lubricant fluids 审中-公开
    烷基芳族润滑剂流体

    公开(公告)号:US20080234157A1

    公开(公告)日:2008-09-25

    申请号:US12075948

    申请日:2008-03-14

    IPC分类号: C10M107/02

    摘要: The alkylaromatic compositions include an aromatic moiety other than unsubstituted naphthalene; and an alkyl moiety having a carbon atom number in the range between 12 to 40, wherein said alkyl moiety is attached to said aromatic moiety such that at least 25 mol % of the benzylic carbons are quaternary. The process for producing the alkylaromatic compositions include contacting at least one an aromatic compound and a mono-olefin having a carbon atom number in the range between 12 to 40 in the presence of an acidic alkylation catalyst under alkylation conditions, wherein at least 50 mol % of the mono-olefin structure comprises a vinylidenyl structure, and thereby producing said alkylaromatic compound having at least 25 mol % of benzylic carbons that are quaternary. The alkylaromatic compositions disclosed herein are liquids that have improved thermo- and oxidative stability and pour point.

    摘要翻译: 烷基芳族组合物包括除未取代萘以外的芳族部分; 和具有在12至40之间范围内的碳原子数的烷基部分,其中所述烷基部分连接到所述芳族部分,使得至少25摩尔%的苄型碳是季铵。 制备烷基芳族组合物的方法包括在酸性烷基化催化剂存在下,在烷基化条件下使至少一种芳族化合物和碳原子数在12至40之间范围内的单烯烃接触,其中至少50mol% 的单烯烃结构包括亚乙烯基结构,从而制备具有至少25mol%季铵化的苄基碳的所述烷基芳族化合物。 本文公开的烷基芳烃组合物是具有改善的热和氧化稳定性和倾点的液体。