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    One-step process for the preparation of halide-free hydrophobic salts
    45.
    发明授权
    One-step process for the preparation of halide-free hydrophobic salts 失效

    公开(公告)号：US07253289B2

    公开(公告)日：2007-08-07

    申请号：US10250801

    申请日：2002-01-22

    申请人： Rex Xiaofeng Ren ,  Victor R. Koch

    发明人： Rex Xiaofeng Ren ,  Victor R. Koch

    IPC分类号： C07D233/00

    CPC分类号： C07D231/12 ,  C07D233/56 ,  C07D249/08 ,  C07F9/28

    摘要： This invention describes a one pot, single-step process for the preparation of halide-free hydrophobic salts comprising polyalkylated imidazolium cations and various anions in accordance with the following structure, where R1 and R3 represent the either the same or different alkyl groups, and R2, R4, and R5 represent either hydrogen atoms, or the same or different alkyl group substituents; X represents a polyatomic anion that is the conjugate base of an acid. By simply mixing aqueous formaldehyde with an alkyl amine such as methylanune, ethylamine, n-propyl oriso-propylamine, or n-butyl-, iso-butyl, or t-butylamine, or by mixing aqueous formaldehyde with two alkyl amines (preferably one being methylamine, ethylamine, n-propyl- or iso-propylamine, or n-butyl-, isobutyl, or t-butylamine) and another being n-propyl- or isopropylaine, or n-butyl-, isbutyl, or t-butylamine), an acid (such as hexafluorophosphoric acid, trifluoroacetic acid, pentafluoropropionic, heptafluorobutyric acid, or the free acid of a bis(perfluoroalkylsulfonyprnide or tris(perfluoroalkylsulfonyl)methide as the source of the anion) and aqueous glyoxal solution, the hydrophobic ionic salts or mixtures thereof thus formed may be conveniently separated directly from the aqueous byproduct layer. Like the single cation hydrophobic salts, these mixed hydrophobic ionic liquids are non-flammable and manifest no detectable vapor pressure up to their decomposition temperature of greater than 300° C. We have also discovered that, surprisingly, ternary mixtures of dialkylated ionic liquids manifest higher ionic conductivities than a single ionic liquid of the mixture alone. This property benefits electrochemical power source applications such as batteries and capacitors. Furthermore, we have discovered that ternary mixtures of dialkylated ionic liquids absorb microwave radiation more efficiently than a single ionic liquid of the mixture alone. This property benefits microwave-induced synthetic reactions. Such physical and chemical properties make it possible to employ inexpensive mixtures of polyalkylated imidazolium cations in an advantageous manner as thermal transfer fluids, high temperature lubricants, and plasticizers, and as solvents in the areas of electrochemistry, synthetic chemistry, catalysis, and separations chemistry.

    Combination of additives for lubricating oils
    49.
    发明申请
    Combination of additives for lubricating oils 失效
    润滑油添加剂的组合

    公开(公告)号：US20020198115A1

    公开(公告)日：2002-12-26

    申请号：US10166413

    申请日：2002-06-10

    发明人： Ravindranath Mukkamala

    IPC分类号： C10M141/00 ,  C07D233/00

    CPC分类号： C07D235/02 ,  C07D233/42 ,  C10M135/32 ,  C10M2219/09 ,  C10N2230/06 ,  C10N2230/12 ,  C10N2240/10 ,  C10N2240/101 ,  C10N2240/104 ,  C10N2240/106

    摘要： A composition comprising a compound of formula I: 1 wherein W represents O, SnullA2, or two groups, R3 and R4; bonds a and b are single or double bonds, provided that one of a and b is a single bond and the other is a double bond; c is a single or double bond, and d is a single bond, double bond, or two single bonds, provided that d is a single bond when c is a double bond, d is not a single bond when c is a single bond, and W is R3 and R4 when d is two single bonds; A1, A2, B1 and B2 are independently hydrogen, alkyl, alkenyl, aralkyl or one of the groups depicted in Scheme 1: 2 and a dithiophosphate.

    摘要翻译： 一种组合物，其包含式I化合物：其中W表示O，S-A2或两个基团，R 3和R 4; 键a和b是单键或双键，条件是a和b之一是单键，另一个是双键; c是单键或双键，d是单键，双键或两个单键，条件是当c是双键时d是单键，当c是单键时d不是单键， 当d为2个单键时，W为R3和R4; A1，A2，B1和B2独立地是氢，烷基，烯基，芳烷基或方案1中所示的基团之一：和二硫代磷酸酯。