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
    3.
    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.

    Porous Solid Lubricant, Bearing and Constant-Velocity Joint
    6.
    发明申请
    Porous Solid Lubricant, Bearing and Constant-Velocity Joint 审中-公开
    多孔固体润滑剂,轴承和恒速接头

    公开(公告)号:US20090054276A1

    公开(公告)日:2009-02-26

    申请号:US12085579

    申请日:2006-11-29

    摘要: A porous solid lubricant includes a lubricating component, and a resin component. The lubricating component is a solid material made porous by foaming, and is occluded in the resin. A bearing or a constant-velocity joint has the above porous solid lubricant sealed therein. Since the lubricating component is occluded in the resin while foaming the resin component, the lubricating component can be slowly exuded through molecules of the resin due to deformation of the flexible resin under external force such as compression, expansion, bending and twisting. The amount of lubricating oil retained is larger than the amount of oil retained in pores by mere impregnation. Thus, such a bearing which has a long life, can be operated at a high speed, and can be manufactured at a low cost. Also, such a constant-velocity joint has a long life and has a rubber boot less likely to be damaged.

    摘要翻译: 多孔固体润滑剂包括润滑组分和树脂组分。 润滑组分是通过发泡多孔的固体材料,并且被吸收在树脂中。 轴承或恒速接头具有密封在其中的上述多孔固体润滑剂。 由于在使树脂成分发泡的同时,润滑成分被吸收在树脂中,所以由于在压缩,膨胀,弯曲,加捻等外力下由于柔性树脂的变形而使树脂分子缓慢渗出润滑成分。 保留的润滑油的量大于仅通过浸渍保留在孔中的油的量。 因此,寿命长的轴承能够高速运转,能够低成本地制造。 此外,这种等速接头寿命长,并且橡胶靴不太可能被损坏。

    Lubricant containing oligomer with flexible and mesogenic segments
    10.
    发明授权
    Lubricant containing oligomer with flexible and mesogenic segments 失效
    含有柔性和介晶段的含有低聚物的润滑剂

    公开(公告)号:US5498358A

    公开(公告)日:1996-03-12

    申请号:US235779

    申请日:1994-04-29

    摘要: A lubricant composition for an internal combustion engine contains a lubricant basestock and an effective amount for antiwear properties of an oligomer containing at least one mesogenic segment and at least one flexible segment. The oligomer can have a centrally disposed flexible segment, e.g., derived from a polyalkylene glycol such as polypropylene glycol, with mesogenic segments as end caps or it can contain alternating flexible and mesogenic segments, e.g., comprising a repeat unit comprising aromatic ester groups and at least one linear polyalkylene spacer. The oligomer preferably has a molecular weight of from about 1,000 to about 4,000 and is present at from about 0.1% to about 3%, by weight of the basestock.

    摘要翻译: 用于内燃机的润滑剂组合物含有润滑剂基础油和有效量的含有至少一个介晶段和至少一个柔性段的低聚物的抗磨性能。 低聚物可以具有中心设置的柔性链段,例如衍生自聚亚烷基二醇例如聚丙二醇,其具有中间链段作为端帽,或者其可以含有交替的柔性和中间链段,例如,包含包含芳族酯基的重复单元, 至少一个线性聚亚烷基间隔物。 低聚物优选具有约1,000至约4,000的分子量,并且以基料重量的约0.1%至约3%存在。