知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

236 条记录 (耗时 0.022 秒)

    Polymers as additives for fuels
    1.
    发明授权
    Polymers as additives for fuels 有权

    公开(公告)号：US11566196B2

    公开(公告)日：2023-01-31

    申请号：US17171456

    申请日：2021-02-09

    申请人： BASF SE

    发明人： Maxim Peretolchin ,  Ivette Garcia Castro ,  Aaron Flores-Figueroa

    IPC分类号： C10L10/04 ,  C10L1/2383 ,  C10M149/04 ,  C10L10/06 ,  C10M149/06 ,  C10L10/08 ,  C10L1/196 ,  C10L1/198 ,  C10L1/236

    摘要： A method minimizes power loss in a direct injection diesel engine by adding a copolymer to a diesel fuel composition. The copolymer contains, in a copolymerized form, (A) maleic anhydride, (B) an α-olefin having from 12 to 30 carbon atoms, (C) optionally an additional aliphatic or cycloaliphatic olefin which has at least 4 carbon atoms and is different from monomer (B), and (D) optionally an additional copolymerizable monomer other than monomers (A), (B) and (C). Monomer (D) can be a vinyl ester, a vinyl ether, a (meth)acrylic ester of an alcohol having at least 5 carbon atoms, an allyl alcohol or an ester thereof, a N-vinyl compound, an ethylenically unsaturated aromatic, an α,β-ethylenically unsaturated nitrile, a (meth)acrylamide, or an allylamine. Anhydride functionalities present in the copolymer are partly reacted with at least one compound (E) comprising an alcohol group and/or an amino group, and the anhydride functionalities present are hydrolyzed.

    Alkyl acrylate copolymer dispersants and uses thereof
    6.
    发明授权
    Alkyl acrylate copolymer dispersants and uses thereof 有权
    丙烯酸烷基酯共聚物分散剂及其用途

    公开(公告)号：US08980804B2

    公开(公告)日：2015-03-17

    申请号：US11494598

    申请日：2006-07-28

    申请人： John T. Loper ,  Naresh C. Mathur ,  Sanjay Srinivasan

    发明人： John T. Loper ,  Naresh C. Mathur ,  Sanjay Srinivasan

    IPC分类号： C10M169/00 ,  C08F220/18 ,  C10M149/06 ,  C10M149/14 ,  C08F222/06

    CPC分类号： C08F220/18 ,  C08F8/32 ,  C08F222/06 ,  C08F2220/1825 ,  C08F2220/1891 ,  C08F2800/20 ,  C10M149/06 ,  C10M149/14 ,  C10M2209/084 ,  C10M2215/04 ,  C10M2215/221 ,  C10M2215/28 ,  C10M2217/046 ,  C10N2220/021 ,  C10N2230/02 ,  C10N2230/04 ,  C10N2230/06 ,  C10N2230/10 ,  C10N2240/04 ,  C10N2260/09 ,  C10M2209/086 ,  C08F2220/1883

    摘要： A novel a polymer dispersant comprising an additive reaction product obtained by reacting a first monomer comprising a mixture of alkylacrylates of varying chain lengths with a second monomer comprising an olefinic carboxylic acylating agent under conditions effective for free radical polymerization of the first and second monomers to provide a base polymer comprising an acylated alkylacrylate copolymer, and wherein the base polymer is further reacted with a hydrocarbyl amine to provide an amine-functionalized polyalkylacrylate copolymer dispersant. The base polymer intermediate has a number average molecular weight between about 5,000 to about 50,000. The polyalkylacrylate copolymer dispersant has good dispersancy, low temperature properties, thickening efficiency, and antioxidancy properties. They also can improve fuel economy when used in engine lubricating compositions. They also are precipitation- or sedimentation-resistant, and do not cause or encourage such formations in finished fluids incorporating them.

    摘要翻译： 一种新型的聚合物分散剂，其包含通过使第一单体包含不同链长度的烷基丙烯酸酯的混合物与包含烯属羧酸酰化剂的第二单体在第一和第二单体的自由基聚合有效的条件下反应而获得的添加剂反应产物， 包含酰化烷基丙烯酸酯共聚物的基础聚合物，并且其中所述基础聚合物进一步与烃基胺反应以提供胺官能化的聚丙烯酸烷基酯共聚物分散剂。 基础聚合物中间体具有约5,000至约50,000的数均分子量。 聚丙烯酸烷基酯共聚物分散剂具有良好的分散性，低温性能，增稠效率和抗氧化性能。 它们还可以在发动机润滑组合物中使用时提高燃油经济性。 它们也是沉淀或沉降抵抗的，并且不会导致或鼓励在其结合的成品流体中形成这种结垢。

    Lubricant composition for oil-impregnated sintered bearings
    9.
    发明授权
    Lubricant composition for oil-impregnated sintered bearings 有权
    含油烧结轴承的润滑组合物

    公开(公告)号：US07939477B2

    公开(公告)日：2011-05-10

    申请号：US12297461

    申请日：2007-03-28

    申请人： Miyuki Hashida ,  Toshio Nitta

    发明人： Miyuki Hashida ,  Toshio Nitta

    IPC分类号： C10M169/00 ,  C10M157/02 ,  C10M157/04 ,  C10M149/06

    CPC分类号： C10M169/04 ,  C10M169/00 ,  C10M2211/063 ,  C10M2213/006 ,  C10M2213/0606 ,  C10M2213/0626 ,  C10M2215/082 ,  C10M2217/04 ,  C10M2217/044 ,  C10M2217/06 ,  C10N2220/08 ,  C10N2220/082 ,  C10N2230/06 ,  C10N2240/02 ,  C10N2250/10

    摘要： A lubricant composition for oil-impregnated sintered bearings, which comprises at least one base oil selected from a perfluoropolyether oil represented by the following general formula: RfO(CF2CF2O)m(CF2O)nRf (where Rf is a perfluoroalkyl group having 1-5 carbon atoms, m+n=3-200, m:n=10-90:90-10), a perfluoropolyether oil represented by the following general formula: RfO[CF(CF3)CF2O]p(CF2CF2O)q(CF2O)rRf (where Rf is a perfluoroalkyl group having 1-5 carbon atoms, p+q+r=3-200, q and r each may be 0, and (q+r)/p=0-2), and a polyfluoropolyether oil represented by the following general formula: F(CF2CF2CF2O)sC2F5 (where s=2-100), and a fluorine-containing di- or mono-amide-based compound, has further improved lubrication characteristics, particularly wear resistance and friction coefficient characteristics, of perfluoropolyether oil.

    摘要翻译： 一种用于油浸烧结轴承的润滑剂组合物，其包含至少一种选自以下通式表示的全氟聚醚油的基础油：RfO（CF 2 CF 2 O）m（CF 2 O）n R f（其中R f为具有1-5个碳的全氟烷基 原子，m + n = 3〜200，m：n = 10-90：90-10），由以下通式表示的全氟聚醚油：RfO [CF（CF 3）CF 2 O] p（CF 2 CF 2 O）q（CF 2 O）r R f （其中Rf是具有1-5个碳原子的全氟烷基，p + q + r = 3-200，q和r各自可以是0，并且（q + r）/ p = 0-2）和多氟聚醚油 由以下通式表示：F（CF 2 CF 2 CF 2 O）sC 2 F 5（其中s = 2-100）和含氟二酰基或单酰胺类化合物具有进一步改善的润滑特性，特别是耐磨性和摩擦系数特性， 的全氟聚醚油。