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    Novel lubricants
    12.
    发明授权
    Novel lubricants 失效
    新型润滑剂

    公开(公告)号：US5055626A

    公开(公告)日：1991-10-08

    申请号：US471454

    申请日：1990-01-29

    申请人： Suzzy C. Ho ,  Margaret M. Wu

    发明人： Suzzy C. Ho ,  Margaret M. Wu

    IPC分类号： C07C2/48 ,  C10G50/02 ,  C10M105/06

    CPC分类号： C10M105/06 ,  C07C2/48 ,  C10G50/02 ,  C07C2521/08 ,  C07C2523/26 ,  C07C2523/28 ,  C07C2523/30 ,  C10M2203/06

    摘要： Alkylaromatic lubricant products are produced by the reaction of a long chain alkyne such as octyne, decyne or dodecyne over a reduced Group VIB metal oxide catalyst, preferably reduced chromium on silica. The products, which are predominantly n-alkyl substituted, possess excellent thermal and oxidative stability and may be used as lubricant base stocks and viscosity improvers.

    摘要翻译： 烷基芳族润滑剂产物通过长链炔烃如辛炔，癸炔或十二炔与还原的VIB族金属氧化物催化剂反应制备，优选在二氧化硅上还原的铬。 主要为正烷基取代的产品具有优异的热和氧化稳定性，可用作润滑剂基础油和粘度改进剂。

    Process for the catalytic cyclodimerization of cyclic olefins
    17.
    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

    申请人： Margaret M. Wu ,  Yusheng Xiong

    发明人： Margaret M. Wu ,  Yusheng Xiong

    IPC分类号： C07C2/42 ,  C07C2/00

    CPC分类号： C07C2/42 ,  C07C2103/90 ,  C07C2521/08 ,  C07C2523/26

    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。

    Method for making diamondoid lubricant base stock by alkylation with an olefin in the presence of a Lewis acid
    18.
    发明授权
    Method for making diamondoid lubricant base stock by alkylation with an olefin in the presence of a Lewis acid 失效
    在路易斯酸存在下用烯烃烷基化制备金刚石润滑剂基础油料的方法

    公开(公告)号：US5345020A

    公开(公告)日：1994-09-06

    申请号：US70823

    申请日：1993-06-03

    申请人： Dong-Ming Shen ,  Margaret M. Wu

    发明人： Dong-Ming Shen ,  Margaret M. Wu

    IPC分类号： C07C2/54 ,  C07C13/28

    CPC分类号： C07C2/54 ,  C07C2103/74 ,  C07C2527/08 ,  C07C2527/125

    摘要： The invention provides a method for selectively alkylating a diamondoid compound comprising reacting at least one .alpha.-olefin containing at least six carbon atoms with at least one diamondoid compound in the presence of an acid catalyst selected from the group consisting of AlX.sub.3 and BX.sub.3 wherein X is a halogen, in the absence of added proton-donating catalyst promoter. The invention further provides a lubricant composition comprising alkyl-substituted adamantanes wherein the ratio of linear to branched alkyl substituents is at least about 4:1 and wherein the average number of alkyl substitutions per diamondoid molecule is from about 1.5 to about 4.

    摘要翻译： 本发明提供了选择性烷基化金刚石化合物的方法，包括使至少一种含有至少6个碳原子的α-烯烃与至少一种类金刚石化合物在选自AlX 3和BX 3的酸催化剂存在下反应，其中X为 在没有添加质子递送催化剂促进剂的情况下是卤素。 本发明还提供了包含烷基取代的金刚烷的润滑剂组合物，其中直链与支链烷基取代基的比例为至少约4:1，并且其中每个金刚石类分子的平均烷基取代数为约1.5至约4。

    Molecular weight control of olefin oligomers
    20.
    发明授权
    Molecular weight control of olefin oligomers 失效
    烯烃低聚物的分子量控制

    公开(公告)号：US5264642A

    公开(公告)日：1993-11-23

    申请号：US901282

    申请日：1992-06-19

    申请人： Margaret M. Wu

    发明人： Margaret M. Wu

    IPC分类号： B01J23/28 ,  C07C2/10 ,  C07C2/02

    CPC分类号： B01J23/28 ,  C07C2/10 ,  C07C2521/08 ,  C07C2523/26

    摘要： A process is disclosed to produce liquid oligomers of olefins, such as l-decene, with controlled molecular weight and with branch ratios below 0.19 and having higher viscosity indices than oligomers with higher branch ratios. These oligomers with low branch ratios and controlled molecular weight can be used as basestocks for many lubricants or greases with an improved viscosity-temperature relationship, oxidative stability, volatility, etc. They can also be used to improve viscosities and viscosity indices of lower quality oils. The olefins can, for example, be oligomerized in the presence of hydrogen over a supported and reduced metal oxide catalyst from Group VIB of the Periodic Table to give oligomers of controlled viscosity suitable for lubricant application. More particularly, the instant invention is directed to a process for the oligomerization of olefinic hydrocarbons containing 6 to 20 carbon atoms which comprises oligomerizing said hydrocarbon in the presence of hydrogen under oligomerization conditions, wherein the reaction product consists essentially of substantially non-isomerized olefins. For example, alpha olefins such as l-decene, and wherein a major proportion of the double bonds of the olefins or olefinic hydrocarbons are not isomerized, in the presence of a suitable catalyst, e.g., a supported and reduced metal oxide catalyst from Group VIB of the Periodic Table.

    摘要翻译： 公开了一种制备烯烃的液体低聚物的方法，例如1-癸烯，具有受控的分子量和分支比率低于0.19，并且具有比具有较高分支比的低聚物更高的粘度指数。 具有低分支比和可控分子量的这些低聚物可用作许多润滑剂或油脂的基础油料，具有改善的粘度 - 温度关系，氧化稳定性，挥发性等。它们还可用于改善较低质量油的粘度和粘度指数 。 烯烃可以例如在氢存在下在来自元素周期表VIB的负载且还原的金属氧化物催化剂上低聚，得到适于润滑剂应用的受控粘度的低聚物。 更具体地说，本发明涉及一种含有6至20个碳原子的烯烃低聚的方法，其中包括在低聚条件下在氢存在下使所述烃低聚，其中反应产物基本上由基本上非异构化的烯烃组成。 例如，α-烯烃如1-癸烯，其中大部分烯烃或烯烃的双键未被异构化，在合适的催化剂存在下，例如来自VIB族的负载和还原的金属氧化物催化剂 的周期表。