Additive concentrates for the formulation of lubricating oil compositions

    公开(公告)号:US11168280B2

    公开(公告)日:2021-11-09

    申请号:US14874688

    申请日:2015-10-05

    摘要: A lubricant additive concentrate containing (i) dispersant that is the polybutenyl succinimide reaction product of a polyamine and polybutenyl succinic anhydride (PIBSA) derived from polybutene having a number average molecular weight (Mn) of from about 1300 to about 2500 daltons and a terminal vinylidene content of at least about 50% and maleic anhydride via an ene maleation process; (ii) overbased magnesium colloidal detergent having a total base number (TBN) of from about 300 to about 900 mg KOH/g; and (iii) organic friction modifier selected from hydroxyalkyl alkyl amines of C14 to C24 hydrocarbons, at least one hydroxyalkyl alkyl ether amines of C13 to C24 hydrocarbons, at least one alkyl ester amine derived from triethanol amine having a C13 to C24 hydrocarbyl substituent, at least one non-basic, fatty acid amide, or a mixture thereof; wherein the combined mass % of dispersant (i) and overbased magnesium colloidal detergent (ii) in said concentrate is from about 15 to about 50 mass %: the mass ratio of (i):(ii) is from about 1:1 to about 6:1; and the concentrate contains from about 2 to about 10 mass % of organic friction modifier (iii); the remainder of the concentrate being composed of base oil and additives other than dispersant (i), overbased magnesium colloidal detergent (ii) and organic friction modifier (iii).

    Lubricating oil compositions
    44.
    发明授权

    公开(公告)号:US11136523B2

    公开(公告)日:2021-10-05

    申请号:US15245526

    申请日:2016-08-24

    摘要: A lubricating oil composition which contains, or is made by admixing: (A) an oil of lubricating viscosity, in a major amount; (B) at least one oil-soluble or oil-dispersible sulfurized fatty acid ester, as an additive in an amount providing the lubricating oil composition with greater than or equal to 0.02 mass % sulphur; and, (C) at least one oil-soluble or oil-dispersible alkali metal or alkaline earth metal salicylate detergent, as an additive in an effective minor amount, providing greater than or equal to 5 mmol of salicylate soap per kilogram of the lubricating oil composition, wherein the lubricating oil composition does not contain a phosphorus ester additive.

    Polymers and Lubricating Compositions Containing Polymers

    公开(公告)号:US20210214498A1

    公开(公告)日:2021-07-15

    申请号:US17149016

    申请日:2021-01-14

    摘要: A polymer comprising units having the structure (I): wherein x is 2 or 3, wherein L is (CH2)y, where y is an integer from 1 to 10, or wherein L is CH(CH3)CH2S(CH2)z, where z is an integer from 1 to 5; wherein [Q] is absent or is a polymerised moiety consisting of units having the structure (II): wherein R is a hydrocarbyl group, or a hydrocarbyl group containing one or more heteroatoms, wherein R may be linear, branched or cyclic, saturated or unsaturated, and wherein R has from 1 to 30 carbon atoms; wherein [Q] either consists of identical units of structure (II), or wherein [Q] consists of more than one different units of structure (II), differing in group R; and wherein X is a halogen or another chain terminating group. The polymers may find use as additives in lubricating compositions where they provide friction improvement and wear reduction.

    High Viscosity Index Comb Polymer Viscosity Modifiers and Methods of Modifying Lubricant Viscosity Using Same

    公开(公告)号:US20210179760A1

    公开(公告)日:2021-06-17

    申请号:US17109623

    申请日:2020-12-02

    IPC分类号: C08F279/02 C08K5/01

    摘要: A comb copolymer viscosity modifier may be made by polymerization comprising at least, or consisting essentially of, the following monomers: (a) (optionally from 7.0 wt % to 18 wt %, by repeat units, of) a hydrogenated polybutadiene-based (alk)acrylate ester macromonomer; (b) (optionally from 33 wt % to 64 wt % or from 38 wt % to 58 wt %, by repeat units, of) a C3-C8 alkyl (alk)acrylate ester monomer; (c) (optionally up to 35.0 wt %, by repeat units, of) a C12-C24 alkyl (alk)acrylate ester monomer; and (d) (optionally from 3.0 wt % to 27 wt %, by repeat units, of) a C6-C20 aryl, aralkyl, or alkaryl (alk)acrylate ester monomer, such that a sum of repeat units due to (c) plus (d) constitute at least 21.0 wt % of repeat units of the comb copolymer viscosity modifier. Lubricant compositions comprising the comb copolymer viscosity modifier, as well as uses thereof and methods for modifying viscosity and dispersancy, are also contemplated.

    Oil anti-foulant and/or asphaltene agglomeration process

    公开(公告)号:US10995287B2

    公开(公告)日:2021-05-04

    申请号:US16707253

    申请日:2019-12-09

    IPC分类号: C10G75/04 C10G75/02

    摘要: Fouling and/or asphaltene agglomeration (or flocculation) in midstream processes and transportation and in upstream transportation of a hydrocarbon oil is reduced by providing in the oil an additive combination including; (A) a polyalkenyl-substituted carboxylic acid or anhydride, and (B) a metal detergent system comprising a hydrocarbyl-substituted hydroxybenzoate metal salt or a hydrocarbyl-substituted sulfonate metal salt or a mixure of both salts or a complex thereof, where the mass:mass ratio of (A) to (B) is in the range of 20:1 to 1:20 and the treat rate of the additive is in the range of 5 to 10000 ppm by mass.

    Lubricating Oil Additives
    49.
    发明申请

    公开(公告)号:US20200369976A1

    公开(公告)日:2020-11-26

    申请号:US16883249

    申请日:2020-05-26

    摘要: A lubricating oil composition comprising at least 50 percent by mass, based on the mass of the composition of an oil of lubricating viscosity and 0.01 to 25 percent by mass, based on the mass of the composition of a polymer comprising units (a) and one or both units (b) and (c): —N(COR1)(CH2)x—  (a) —NH(CH2)y—  (b) —N(CH2CH2-k(CH3)kCOOR2)(CH2)z   (c) where the total number (n) of units (a), (b) and (c) is an integer between 4 and 500; wherein x, y and z are independently 2 or 3; wherein k is zero or 1. The polymer shows good solubility in the lubricating oil and provides friction modification. A method of synthesising a polymer is also disclosed.