Alkylated anisole lubricant basestock
    1.
    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

    Process for the catalytic cyclodimerization of cyclic olefins
    2.
    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。

    Hydrocarbon distillate fuels containing novel additive
    5.
    发明授权
    Hydrocarbon distillate fuels containing novel additive 失效
    含有新添加剂的烃馏分燃料

    公开(公告)号:US5637784A

    公开(公告)日:1997-06-10

    申请号:US536724

    申请日:1995-09-28

    摘要: A hydrocarbon oligomer and a process for its production is disclosed that is useful as a pour point depressant and as a combination pour point depressant and viscosity index improver for mineral oil or synthetic oil. The oligomer is also useful in modifying wax crystal formation at low temperature when added to distillate fuels. The oligomer is a near linear copolymer of a mixture of ethylene and C.sub.3 -C.sub.28 1-alkenes, or only 1-alkenes, wherein a large proportion of the pendant alkyl groups of the recurring 1-alkene monomer units contain between 14 and 22 carbon atoms. The oligomer is produced by polymerization of mixed 1-alkenes with reduced chromium oxide catalyst on silica support.

    摘要翻译: 公开了一种烃低聚物及其生产方法,其用作矿物油或合成油的倾点下降剂和倾点下降剂和粘度指数改进剂的组合。 当加入到馏出燃料中时,低聚物也可用于在低温下修饰蜡晶形成。 低聚物是乙烯和C 3 -C 28 1-烯烃或仅仅1-烯烃的混合物的近似线性共聚物,其中重复的1-烯烃单体单元的大部分侧基烷基含有14至22个碳原子 。 低聚物通过在二氧化硅载体上与还原的氧化铬催化剂的混合的1-烯烃聚合来制备。

    Hydrocarbon lube and distillate fuel additive
    7.
    发明授权
    Hydrocarbon lube and distillate fuel additive 失效
    烃类润滑油和馏出油燃料添加剂

    公开(公告)号:US5488191A

    公开(公告)日:1996-01-30

    申请号:US178152

    申请日:1994-01-06

    摘要: A hydrocarbon oligomer and a process for its production is disclosed that is useful as a pour point depressant and as a combination pour point depressant and viscosity index improver for mineral oil or synthetic oil. The oligomer is also useful in modifying wax crystal formation at low temperature when added to distillate fuels. The oligomer is a near linear copolymer of a mixture of ethylene and C.sub.3 -C.sub.28 1-alkenes, or only 1-alkenes, wherein a large proportion of the pendant alkyl groups of the recurring 1-alkene monomer units contain between 14 and 22 carbon atoms. The oligomer is produced by polymerization of mixed 1-alkenes with reduced chromium oxide catalyst on silica support.

    摘要翻译: 公开了一种烃低聚物及其生产方法,其用作矿物油或合成油的倾点下降剂和倾点下降剂和粘度指数改进剂的组合。 当加入到馏出燃料中时,低聚物也可用于在低温下修饰蜡晶形成。 低聚物是乙烯和C 3 -C 28 1-烯烃或仅仅1-烯烃的混合物的近似线性共聚物,其中重复的1-烯烃单体单元的大部分侧基烷基含有14至22个碳原子 。 低聚物通过在二氧化硅载体上与还原的氧化铬催化剂的混合的1-烯烃聚合来制备。

    C.sub.2 -C.sub.5 olefin oligomer compositions as shear stable viscosity
index improvers
    8.
    发明授权
    C.sub.2 -C.sub.5 olefin oligomer compositions as shear stable viscosity index improvers 失效
    C2-C5烯烃低聚物组合物作为剪切稳定粘度指数改进剂

    公开(公告)号:US5276227A

    公开(公告)日:1994-01-04

    申请号:US829816

    申请日:1992-02-03

    摘要: Liquid hydrocarbon lubricant viscosity index improver compositions are disclosed having high shear stability. The compositions comprise the homopolymer or copolymer product of the oligomerization of C.sub.3 to C.sub.5 alpha-olefin or mixtures thereof, with or without ethylene as co-monomer. The process is carried out under oligomerization conditions in contact with a reduced valence state Group VIB metal catalyst on porous support. The viscosity index improver of the invention has a regio-irregularity of at least 20%, weight average molecular weight between 6,000 and 30,000 and molecular weight distribution between 2 and 5.

    摘要翻译: 公开了具有高剪切稳定性的液体烃润滑剂粘度指数改进剂组合物。 所述组合物包含C 3 -C 5α-烯烃或其混合物的低聚的均聚物或共聚物产物,具有或不具有乙烯作为共聚单体。 该方法在与多价载体上的还原态VIB族金属催化剂接触的低聚条件下进行。 本发明的粘度指数改进剂的区域不均匀度至少为20%,重均分子量为6000至30,000,分子量分布为2至5。