LUBRICATING OIL COMPOSITIONS
    2.
    发明申请

    公开(公告)号:US20190161696A1

    公开(公告)日:2019-05-30

    申请号:US16201009

    申请日:2018-11-27

    摘要: A lubricating composition comprises a major amount of an oil of lubricating viscosity and 0.01 to 25 percent by weight based on the weight of the composition, of a poly(2-oxazoline) polymer. The polymer has the repeat unit: —N(COR1)CH2CH2— wherein the number of repeat units (n) in the polymer is an integer between 4 and 1000, such as between 4 and 500. The polymer carries an inorganic or organic nucleophilic polymerisation terminating group (t), and an initiator group (i) connected to the N atom of a repeat unit, the initiator group (i) being effective to initiate the polymerisation of linear, branched or cyclic hydrocarbyl moieties. At least 5% of the total number of the groups R1 in the polymer comprise alkenyl groups having between 15 and 20 carbon atoms.

    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.

    Lubricating Oil Additives
    5.
    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.

    LUBRICATING OIL ADDITIVES
    6.
    发明申请

    公开(公告)号:US20190161698A1

    公开(公告)日:2019-05-30

    申请号:US16201045

    申请日:2018-11-27

    摘要: A lubricating composition comprises a major amount of an oil of lubricating viscosity and 0.01 to 25 percent by mass, based on the mass of the composition of an oil-soluble copolymer, The copolymer comprises units (a) and units (b): —N(COR1)CH2CH2—  (a) —N(COR2)CH2CH2CH2—  (b) wherein the polymer carries an inorganic or organic nucleophilic polymerisation terminating group (t), and an initiator group (i) connected to the N atom of a repeat unit (a) or (b), the initiator group (i) being effective to initiate the polymerisation of linear branched or cyclic hydrocarbyl moieties. R1 and R2 are the same or different and comprise a single or a mixture of linear, branched or cyclic hydrocarbyl groups having 1-50 carbon atoms, some or all having 12-50 carbon atoms, or of at least one macro-monomeric hydrocarbyl group with more than 50 carbon atoms.

    Polymers and lubricating compositions containing polymers

    公开(公告)号:US11505650B2

    公开(公告)日:2022-11-22

    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.

    Lubricating oil additives
    8.
    发明授权

    公开(公告)号:US11142721B2

    公开(公告)日:2021-10-12

    申请号:US16201023

    申请日:2018-11-27

    摘要: A lubricating composition comprises 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 an oil-soluble poly(2-oxazine) polymer. The polymer has the repeat unit: where the number (n) of repeat units is an integer between 4 and 500, such as between 4 and 400. The polymer carries an inorganic or organic nucleophilic polymerisation terminating group (t), and an initiator group (i) connected to the N atom of a repeat unit, the initiator group (i) being effective to initiate the polymerisation of linear, branched or cyclic hydrocarbyl moieties. R1 comprises a single or a mixture of linear, branched or cyclic hydrocarbyl groups having 1-50 carbon atoms, some or all having 12-50 carbon atoms, or of at least one macro-monomeric hydrocarbyl group with more than 50 carbon atoms.

    Lubricating oil additives
    9.
    发明授权

    公开(公告)号:US10407639B2

    公开(公告)日:2019-09-10

    申请号:US15622140

    申请日:2017-06-14

    摘要: A lubricating composition comprises an oil-soluble poly(2-oxazoline) additive having the repeat unit: —N(COR1)CH2CH2— where the number of repeat units (n) is an integer between 4 and 1000; where the polymer carries an inorganic or organic nucleophilic polymerization terminating group t, and a linear, branched or cyclic hydrocarbyl polymerization initiator group (i); and where R1 comprises a single or a mixture of linear branched or cyclic hydrocarbyl groups having 1-100 carbon atoms, some or all having 12-100 carbon atoms, or of at least one macro-monomeric hydrocarbyl group with more than 50 carbon atoms provided that when the polymer is a homopolymer and R1 lacks any hetero atoms; (A) i has a molecular weight of less than 250 g/mol, and R1 has an average number of carbon atoms of 12 to 50; or (B) n is greater than 15. The polymer may provide the composition, in the form of a lubricant, with friction modifier, and with low impact on lubricant viscosity.The polymer may be a homopolymer, a block copolymer or a star polymer.

    LUBRICATING OIL ADDITIVES
    10.
    发明申请

    公开(公告)号:US20190161697A1

    公开(公告)日:2019-05-30

    申请号:US16201023

    申请日:2018-11-27

    摘要: A lubricating composition comprises 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 an oil-soluble poly(2-oxazine) polymer. The polymer has the repeat unit: where the number (n) of repeat units is an integer between 4 and 500, such as between 4 and 400. The polymer carries an inorganic or organic nucleophilic polymerisation terminating group (t), and an initiator group (i) connected to the N atom of a repeat unit, the initiator group (i) being effective to initiate the polymerisation of linear, branched or cyclic hydrocarbyl moieties. R1 comprises a single or a mixture of linear, branched or cyclic hydrocarbyl groups having 1-50 carbon atoms, some or all having 12-50 carbon atoms, or of at least one macro-monomeric hydrocarbyl group with more than 50 carbon atoms.