Foam inhibition in hydrocarbon oils
    103.
    发明授权
    Foam inhibition in hydrocarbon oils 失效
    烃油中的泡沫抑制

    公开(公告)号:US2862885A

    公开(公告)日:1958-12-02

    申请号:US48265755

    申请日:1955-01-18

    Abstract: The tendency of an oil to foam is inhibited by adding to the oil a homopolymer derived from a silane monomer of formula wherein R is a C1-C18 monovalent hydrocarbon group comprising an alkyl, cycloalkyl, aryl, aralkyl or alkaryl group, R1 is a C1-C18 alkyl or alkyloxyalkyl group, R11 is a vinyl, allyl or cyclohexenyl group, x is 0, 1 or 2, y is 1, 2 or 3 and the sum of x and y is 3. Polymerization takes place through the R11 groups to produce a carbon-to-carbon chain, so that the polymers are not polysiloxanes. The oil may be a mineral or synthetic lubricating oil or a ligher petroleum fraction such as gasoline or kerosene. Synthetic lubricating oils mentioned are polymerized unsaturated hydrocarbons (e.g. polybutenes, polypropenes and mixtures of these), polyalkylene glycols and esters thereof, and the aliphatic diesters of dicarboxylic acids (e.g. butyl, hexyl, 2-ethylhexyl, decyl and lauryl esters of sebacic, adipic or azelaic acid). The homopolymers may be derived from vinylalkoxy-, allylalkoxy- or cyclohexenylalkoxy-silanes or mixtures of these. In particular, homopolymers derived from vinyltriethoxy-, vinyltributoxy-, vinylbutyldiethoxy-, vinyldibutylethoxy-, vinylhexyldibutoxy-, vinyldiphenylethoxy-, vinylphenyldiethoxy-silane may be employed. The homopolymers may be employed in lubricating oils in conjunction with other additives, such as extreme pressure agents, viscosity index improvers, oiliness agents and detergents. Specified detergents are phosphosulphurized hydrocarbons (e.g. phosphosulphurized polybutylene) neutralized with sodium or potassium hydroxide, alkaline earth petroleum sulphonates, alkaline earth phenyl stearates and alkaline earth alkyl phenol sulphides. In the examples, toluene or kerosene solutions of polyvinyltriethoxysilanes are added to a lubricating composition consisting of mineral oil and lecithin. For comparison purposes, the effect of adding toluene or kerosene solutions of dimethylsilicones to the same lubricating composition is described.ALSO:Homopolymers derived from a silane monomer of formula wherein R is a C1-C18 monovalent hydrocarbon group comprising an alkyl, cycloalkyl, aryl, aralkyl or alkaryl group, R1 is a C1-C18 alkyl or alkoxyalkyl group, R11 is a vinyl, allyl or cyclohexenyl group, x is 0, 1 or 2, y is 1, 2 or 3 and the sum of x and y is 3, are employed in oils as anti-foam agents (see Group III). Polymerization takes place through the R11 groups to produce a carbon-to-carbon chain, so that the polymers are not polysiloxanes. The monomers may be polymerized at elevated temperature and in the presence of di-t-butyl peroxide as catalyst, employing an inert, substantially anhydrous atmosphere, for example of nitrogen, argon or carbon dioxide. In examples, vinyltriethoxysilane, vinylethyldiethoxysilane, vinylphenyldiethoxysilane or vinyldiphenylethoxysilane are polymerized.

    DIESEL FUEL COMPOSITIONS
    104.
    发明申请

    公开(公告)号:US20180187115A1

    公开(公告)日:2018-07-05

    申请号:US15906250

    申请日:2018-02-27

    Inventor: Jacqueline Reid

    Abstract: A diesel fuel composition comprising a first additive (i) comprising a quaternary ammonium salt and a second additive (ii) comprising a Mannich reaction product; wherein the quaternary ammonium salt additive (i) is formed by the reaction a quaternising agent which is not an ester and a compound formed by the reaction of a hydrocarbyl-substituted acylating agent and an amine of formula (B1) or (B2): wherein R2 and R3 are the same or different alkyl, alkenyl or aryl groups having from 1 to 22 carbon atoms; X is a bond or alkylene group having from 1 to 20 carbon atoms; n is from 0 to 20; m is from 1 to 5; and R4 is hydrogen or a C1 to C22 alkyl group; and wherein the Mannich reaction product additive (ii) is the product of a Mannich reaction between: (d) an aldehyde; (e) an amine; and (f) a substituted phenol; wherein the phenol is substituted with at least one branched hydrocarbyl group having a molecular weight of between 200 and 3000.

    DIESEL FUEL COMPOSITIONS
    106.
    发明申请
    DIESEL FUEL COMPOSITIONS 有权
    柴油燃料组合物

    公开(公告)号:US20140174390A1

    公开(公告)日:2014-06-26

    申请号:US14236754

    申请日:2012-08-02

    Abstract: A diesel fuel composition comprising a quaternary ammonium salt additive which additive is formed by the reaction of (1) a quaternising agent and (2) a compound formed by the reaction of a hydrocarbyl-substituted acylating agent and at least 1.4 molar equivalents of an amine of formula (B1) or (B2), wherein R2 and R3 are the same or different alkyl, alkenyl or aryl groups having from 1 to 22 carbon atoms; X is a bond or alkylene group having from 1 to 20 carbon atoms; n is from 0 to 20; m is from 1 to 5; and R4 is hydrogen or a C1 to C22 alkyl group.

    Abstract translation: 一种柴油燃料组合物,其包含季铵盐添加剂,该添加剂通过(1)季铵化剂和(2)通过烃基取代的酰化剂与至少1.4摩尔当量胺的反应形成的化合物 式(B1)或(B2)表示,其中R2和R3是相同或不同的具有1至22个碳原子的烷基,烯基或芳基; X是具有1至20个碳原子的键或亚烷基; n为0〜20; m为1至5; R4为氢或C1〜C22烷基。

    Lubricant including polyether-or polyester modified polydialkylsiloxane
    110.
    发明申请
    Lubricant including polyether-or polyester modified polydialkylsiloxane 审中-公开
    润滑剂,包括聚醚或聚酯改性聚二烷基硅氧烷

    公开(公告)号:US20060052253A1

    公开(公告)日:2006-03-09

    申请号:US10934824

    申请日:2004-09-03

    Applicant: John Murray

    Inventor: John Murray

    Abstract: Polyether- or polyester-modified polydimethylsiloxane is mixed with a lubricant, such as motor oil. Preferably, the polydialkylsiloxane can form at least about 0.5 percent by volume of the mixture. And the mixture can be used in a fluid-conduit system (e.g., a lubrication system) of a motor or a vehicle (e.g., an automobile), wherein the mixture offers excellent filming properties on, e.g., engine parts and helps to improve engine efficiency, to lengthen the service life of the lubricant, and to reduce harmful emissions from the vehicle.

    Abstract translation: 聚醚或聚酯改性的聚二甲基硅氧烷与润滑剂如机油混合。 优选地,聚二烷基硅氧烷可以形成至少约0.5体积%的混合物。 并且该混合物可用于马达或车辆(例如,汽车)的流体管道系统(例如,润滑系统)中,其中混合物在例如发动机部件上提供优异的成膜性能并且有助于改善发动机 提高润滑油的使用寿命,减少车辆的有害排放。

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