利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

20 条记录 (耗时 0.015 秒)

    Synthetic lubricants
    2.
    发明授权
    Synthetic lubricants 失效
    合成润滑剂

    公开(公告)号：US5008460A

    公开(公告)日：1991-04-16

    申请号：US358108

    申请日：1989-05-30

    申请人： William E. Garwood ,  Quang N. Le ,  Joosup Shim ,  Stephen S. Wong

    发明人： William E. Garwood ,  Quang N. Le ,  Joosup Shim ,  Stephen S. Wong

    IPC分类号： C10G50/02 ,  C10G69/12

    CPC分类号： C10G50/02 ,  C10G69/126

    摘要： Synthetic lubricating oils having a predetermined alkylaromatic structure are prepared from a mixture of mono- or dialkenyl benzene with an aliphatic olefin by free-radical reaction in the presence of ditertiary-butyl peroxide, for example. Equivalent napthalene derivatives may be substituted for the dialkenyl benzene. The oils that are formed exhibit a high Viscosity Index, and a low pour point. The viscosity of the synthetic lube stock produced may be controlled by changing the amount of peroxide used.

    摘要翻译： 具有预定烷基芳族结构的合成润滑油例如由二叔丁基过氧化物存在下，由单 - 或二烯基苯与脂族烯烃的混合物通过自由基反应制备。 等价萘衍生物可代替二苯基苯。 所形成的油表现出高粘度指数和低倾点。 可以通过改变所用过氧化物的量来控制所生产的合成润滑油的粘度。

    Catalysts/process to synthesize alkylated naphthalene synthetic fluids with increased alpha/beta isomers for improving product qualities
    3.
    发明授权
    Catalysts/process to synthesize alkylated naphthalene synthetic fluids with increased alpha/beta isomers for improving product qualities 失效
    合成具有增加的α/β异构体的烷基化萘合成流体的催化剂/方法，以改善产品质量

    公开(公告)号：US5177284A

    公开(公告)日：1993-01-05

    申请号：US705997

    申请日：1991-05-28

    申请人： Quang N. Le ,  Joosup Shim

    发明人： Quang N. Le ,  Joosup Shim

    IPC分类号： C07B61/00 ,  C07C2/66 ,  C07C2/86 ,  C07C15/24

    CPC分类号： C07C2/66 ,  C07C2529/08 ,  C07C2529/70

    摘要： This application discloses critical parameters, including process conditions and catalysts which effect the alpha:beta ratio of alkylated naphthalene isomers. The use of low alkylation temperatures and of low acidity zeolite catalysts (e.g. steamed USY and zeolite beta) lead to an increase in the alpha:beta ratio. The alkylated naphthalene fluids with higher alpha:beta ratio exhibited significantly enhanced product qualities, including thermal and oxidative stabilities.

    摘要翻译： 本申请公开了影响烷基化萘异构体的α：β比的关键参数，包括工艺条件和催化剂。 使用低烷基化温度和低酸度沸石催化剂（例如蒸煮的USY和沸石β）导致α：β比例的增加。 具有较高α：β比率的烷基化萘液显示出显着提高的产品质量，包括热和氧化稳定性。

    Stabilization of polyalpha-olefins
    4.
    发明授权
    Stabilization of polyalpha-olefins 失效
    聚α-烯烃的稳定化

    公开(公告)号：US5107049A

    公开(公告)日：1992-04-21

    申请号：US593171

    申请日：1990-10-05

    申请人： Quang N. Le ,  Joosup Shim ,  Stephen S. Wong

    发明人： Quang N. Le ,  Joosup Shim ,  Stephen S. Wong

    IPC分类号： B01J29/04 ,  C07C2/12 ,  C07C2/66 ,  C07C37/14 ,  C07C51/347

    CPC分类号： C07C51/347 ,  B01J29/04 ,  C07C2/12 ,  C07C2/66 ,  C07C37/14 ,  C07C2529/06 ,  C07C2529/70

    摘要： The thermal stability of poly alpha-olefin (PAO) lubricant basestocks are improved by reacting an aromatic compound with the alpha-olefin oligomer. The PAO materials are prepared by oligomerization of olefins such as 1-decene in the presence of a Lewis acid oligomerization catalyst. The resulting lubricant basestock product exhibits high viscosity, viscosity index and low pour point in addition to the unique enhancement in thermal stability. The reaction between the PAO and the aromatic is carried out in the presence of a solid, cyrstalline alkylation catalyst identified by a specific X-ray diffraction pattern. The preferred catalyst for this purpose is the material known as MCM-22.

    摘要翻译： 通过使芳族化合物与α-烯烃低聚物反应来改善聚α-烯烃（PAO）润滑剂基础油料的热稳定性。 在路易斯酸低聚催化剂存在下，通过烯烃如1-癸烯的低聚制备PAO材料。 除了独特的热稳定性提高之外，所得润滑剂基础油产品显示出高粘度，粘度指数和低倾点。 PAO和芳族化合物之间的反应是在特定X射线衍射图谱鉴定的固体，Cyrstalline烷基化催化剂的存在下进行的。 用于该目的的优选催化剂是称为MCM-22的材料。

    Naphthalene alkylation process
    5.
    发明授权
    Naphthalene alkylation process 失效
    萘烷基化方法

    公开(公告)号：US5034563A

    公开(公告)日：1991-07-23

    申请号：US505392

    申请日：1990-04-06

    申请人： Henry Ashjian ,  Quang N. Le ,  David O. Marler ,  Joosup Shim ,  Stephen S. Wong

    发明人： Henry Ashjian ,  Quang N. Le ,  David O. Marler ,  Joosup Shim ,  Stephen S. Wong

    IPC分类号： C07C2/66

    CPC分类号： C07C2/66 ,  C07C2529/08 ,  C07C2529/70

    摘要： Long chain alkyl substituted naphthalenes are produced by the alkylation of naphthalene with an olefin or other alkylating agent possessing at least 6 carbon atoms, usually 12 to 20 carbon atoms, in the presence of an alkylation catalyst comprising a zeolite which contains cations having a radius of at least 2.5 .ANG.. Cations of this size may be provided by hydrated cations such as hydrated ammonium, sodium or potassium cations or by organoammonium cations such as tetraalkylammonium cations. The zeolite is usually a large pore size ze USY. The presence of the bulky cations in the zeolite increases the selectivity of the catalyst for the production of long chain mono-alkyl substituted naphthalenes in preference to more highly substituted products.

    摘要翻译： 长链烷基取代的萘是通过在含有至少6个碳原子，通常12至20个碳原子的烯烃或其它烷基化剂的烷基化催化剂的存在下，在包含含有阳离子的沸石的烷基化催化剂的存在下， 至少2.5 ANGSTROM。 这种大小的阳离子可由水合阳离子如水合铵，钠或钾阳离子或有机铵阳离子如四烷基铵阳离子提供。 沸石通常是大孔尺寸的USY。 沸石中大体积阳离子的存在增加了催化剂对于生产长链单烷基取代的萘的选择性，优于更高取代的产物。

    Process for producing alkylaromatic lubricant fluids
    7.
    发明授权
    Process for producing alkylaromatic lubricant fluids 失效
    生产烷基芳族润滑剂流体的方法

    公开(公告)号：US5019670A

    公开(公告)日：1991-05-28

    申请号：US515030

    申请日：1990-04-26

    申请人： Quang N. Le ,  Bruce P. Pelrine ,  Joosup Shim

    发明人： Quang N. Le ,  Bruce P. Pelrine ,  Joosup Shim

    IPC分类号： B01J29/04 ,  C07C2/12 ,  C07C2/66 ,  C07C37/14 ,  C07C51/347

    CPC分类号： C07C37/14 ,  B01J29/04 ,  C07C2/12 ,  C07C2/66 ,  C07C51/347 ,  C07C2529/06 ,  C07C2529/70

    摘要： The thermal and oxidative stability of HVI-PAO olefin oligomers is improved by alkylation in the presence of a solid, porous, acidic alkylation catalyst defined by a specific X-ray diffraction pattern. A preferred catalyst is the synthetic zeolite MCM-22. The olefinic oligomers used as alkylating agents are prepared from 1-alkene oligomerization in contact with a reduced metal oxide, preferably reduced chromium oxide, catalyst on support such as silica. Aromatics which may be used in the reaction include monocyclic aromatics such as benzene and toluene as well as bicyclic aromatics such as naphthalene. Substituted aromatics may be used in order to introduce functional groups such as hydroxyl groups into the products, for example by the use of hydroxyaromtics such as phenol or naphthaol. The alkylated aromatic hydrocarbon products retain the unique features of the alkylating olefinic oligomer and exhibit high viscosity index and low pour point as well as improved thermal and oxidative stability and additive solvency characteristics.

    摘要翻译： 在特定X射线衍射图所定义的固体，多孔酸性烷基化催化剂存在下，通过烷基化改进了HVI-PAO烯烃低聚物的热和氧化稳定性。 优选的催化剂是合成沸石MCM-22。 用作烷基化剂的烯烃低聚物由与还原的金属氧化物，优选还原的氧化铬，载体如二氧化硅上的催化剂接触的1-烯烃低聚制备。 可用于反应的芳族化合物包括单环芳族化合物如苯和甲苯以及双环芳烃如萘。 可以使用取代的芳族化合物，以便将诸如羟基的官能团引入产物中，例如通过使用羟基促进剂如苯酚或石脑油。 烷基化芳烃产物保留了烷基化烯属低聚物的独特特征，并表现出高粘度指数和低倾点，以及改善的热和氧化稳定性和添加剂溶解性能。