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    • 63. 发明授权
    • VI enhancing compositions and newtonian lube blends
    • VI增强组合物和牛顿润滑剂混合物
    • US5157177A
    • 1992-10-20
    • US686639
    • 1991-04-17
    • Bruce P. PelrineMargaret M. Wu
    • Bruce P. PelrineMargaret M. Wu
    • C08F10/14C08F110/14C08F210/14C10G50/02C10M143/08
    • C08F10/14C10G50/02C10M143/08C08F110/14C08F210/14C10M2205/00C10M2205/028C10N2220/02Y02P20/582
    • A novel composition is disclosed that is particularly useful as a lubricant viscosity index improver. The composition comprises branched C.sub.30 -C.sub.10000 hydrocarbons that have a branch ratio of less than 0.19 and viscosity at 100.degree. C. between 725 cS and 15,000 cS. The novel compositions comprise the product of the oligomerization of C.sub.6 to C.sub.20 alpha-olefin feedstock, or mixtures thereof, under oligomerization conditions at a temperature between -20.degree. C. and +90.degree. C. in contact with a reduced valence state Group VIB metal catalyst on porous support. The compositions have viscosities at 100.degree. C. between 725 cS and 15,000 cS. Using the foregoing compositions in admixture with mineral oil and synthetic lubricants provides novel lubricant blends that show an elevated viscosity index. The mixtures also show an increased stability to shear stress at high temperature with all blends notable by exhibiting Newtonian flow.
    • 公开了作为润滑剂粘度指数改进剂特别有用的新型组合物。 该组合物包含分支比小于0.19且在100℃下的粘度在725cS和15,000cS之间的支链C30-C10000烃。 该新型组合物包括C6-C20α-烯烃原料低聚的产物,或其混合物,在低温条件下,在-20℃至+ 90℃之间的温度下与还原的化合价VIB金属 多孔载体上的催化剂。 组合物在100℃下的粘度在725cS和15,000cS之间。 使用与矿物油和合成润滑剂混合的上述组合物提供显示升高的粘度指数的新型润滑剂共混物。 混合物还显示出在高温下对剪切应力的稳定性增加,所有共混物通过显示牛顿流动显着。
    • 64. 发明授权
    • Synthetic polyolefin lubricant blends
    • 合成聚烯烃润滑剂混合物
    • US5105038A
    • 1992-04-14
    • US623840
    • 1990-12-07
    • Catherine S. H. ChenMargaret M. Wu
    • Catherine S. H. ChenMargaret M. Wu
    • C10M169/04
    • C10M169/041C10M2203/0206C10M2205/024C10M2205/0245C10M2205/026C10M2205/0265C10M2205/028C10N2220/02
    • Synthetic lubricant blends exhibiting superior lubricant properties such as high viscosity index, including mixtures of oligomeric products of shape selective catalysis with other lubricants, such as high viscosity index poly-alpha-(.alpha.-)olefins lubricant basestock, conventional poly(.alpha.-olefin) and/or other liquid lubricant basestock material.Preferred lubricant mixtures comprise hydrogenated components:a) a low viscosity C.sub.20 -C.sub.60 lubricant range liquid comprising substantially linear hydrocarbon moietoes prepared by shape selective catalysis of lower olefin with medium pore acid zeolite catalyst to provide substantially linear liquid olefinic intermediates or C.sub.20.sup.+ lubricants, said lubricant range liquid having a kinematic viscosity of about 2-10 cS at 100.degree. C.; andb) at least one poly(.alpha.-olefin) having viscosity greater than 20 cS and viscosity index improvement properties.
    • 合成润滑剂共混物表现出优异的润滑性能,例如高粘度指数,包括形状选择性催化与其它润滑剂的低聚产物的混合物,例如高粘度指数聚-α-(α-)烯烃润滑剂基础油,常规聚(α-烯烃) 和/或其它液体润滑剂基础材料。 优选的润滑剂混合物包括氢化组分:a)低粘度的C 20 -C 60润滑剂范围液体,其包含基本上由线性烃气溶胶组成,所述烃气溶胶通过低分子烯烃与中孔酸沸石催化剂的形状选择性催化制备,以提供基本上线性的液体烯烃中间体或C20 +润滑剂,所述润滑剂 在100℃下运动粘度为约2-10cS的范围液体; 和b)至少一种粘度大于20cS的聚(α-烯烃)和粘度指数改进性能。