Lubricantes que contienen dispersantes aromáticos y titanio

    公开(公告)号:ES2586238T3

    公开(公告)日:2016-10-13

    申请号:ES11751754

    申请日:2011-08-22

    Applicant: LUBRIZOL CORP

    Abstract: Composición de lubricante, que comprende: (a) un aceite de viscosidad lubricante; (b) de un 0,2 a un 5 por ciento en peso de un dispersante que comprende el producto de condensación de un polímero funcionalizado carboxílico con un resto aromático a través de una unión amida, imida, o éster; en la que el dispersante comprende un producto de condensación con una amina aromática que tiene al menos 3 anillos aromáticos y al menos un grupo amino primario o secundario; y (c) un compuesto de titanio soluble en aceite, en la que el compuesto de titanio soluble en aceite está presente en una cantidad para proporcionar de 5 a 10.000 partes por millón en peso de titanio.

    METHOD OF LUBRICATING AN INTERNAL COMBUSTION ENGINE

    公开(公告)号:CA2942047A1

    公开(公告)日:2015-09-17

    申请号:CA2942047

    申请日:2015-02-23

    Applicant: LUBRIZOL CORP

    Abstract: The invention provides a method of lubricating an internal combustion engine equipped with a centrifugal oil mist separator, wherein the lubricant contains 0.1 wt % to 8 wt % soot resulting from operation of the engine, and wherein the lubricant composition comprises an oil of lubricating viscosity, and 0.2 wt % to 3 wt % of a soot dispersing additive having a shear stability index of 0 to 25, wherein the soot dispersing additive comprises a block copolymer comprising (i) a vinyl aromatic monomer block and (ii), a conjugated diene olefin monomer block.

    LUBRICATING COMPOSITION COMPRISING SULFONATE DETERGENT AND ASHLESS HYDROCARBYL PHENOLIC COMPOUND

    公开(公告)号:CA3035071A1

    公开(公告)日:2018-03-22

    申请号:CA3035071

    申请日:2017-09-14

    Applicant: LUBRIZOL CORP

    Abstract: The disclosed technology provides lubricating compositions comprising an oil of lubricating viscosity, an alkaline earth metal sulfonate detergent having a metal ratio of at least 10, in an amount to contribute 3 to 14 g KOH/kg of TBN to the lubricating composition, an ashless, sulfur free, hydrocarbyl phenolic compound in an amount of 0.4 to about 6.0 weight percent (wt%) of the composition, and an ashless dispersant; wherein the lubricating composition has total ash of 0.3 to 1.8 wt%, total detergent soap of 0.1 to 1.2 wt% and wherein the lubricating composition contains less than 0.1 wt% of a sulfur-containing phenolic detergent. The disclosed technology further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The disclosed technology further relates to the use of the of the lubricating composition in a heavy duty diesel internal combustion engine to improve control of at least one of the following (i) fuel economy, (ii) corrosion, (iii) cleanliness, and (iv) bore wear.

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