Cooling and flame-retardant lubricating composition for a propulsion system of an electric or hybrid vehicle

    公开(公告)号:US11591538B2

    公开(公告)日:2023-02-28

    申请号:US17259285

    申请日:2019-07-10

    摘要: The present invention relates to a composition for lubricating a propulsion system of an electric or hybrid vehicle, comprising at least one base oil and at least one fire retardant corresponding to formula (I) RF-L-RH  (I) in which RF is a perfluorinated or partially fluorinated group, RH is a hydrocarbon-based group, and L is a linker. The invention also relates to the use of at least one fire retardant of formula (I), in a composition for lubricating a propulsion system of an electric or hybrid vehicle, including at least one battery, to give it ignition-resistance properties.
    Finally, the invention relates to a process for cooling and fire-protecting a battery of a propulsion system of an electric or hybrid vehicle, comprising at least one step of placing at least one battery, in particular a lithium-ion or nickel-cadmium battery, in contact with a composition according to the invention.

    Cooling and flame-retardant composition for a propulsion system of an electric or hybrid vehicle

    公开(公告)号:US11560506B2

    公开(公告)日:2023-01-24

    申请号:US17259278

    申请日:2019-07-10

    摘要: The present invention relates to a composition for cooling a propulsion system of an electric or hybrid vehicle, comprising (i) at least one hydrocarbon-based fluid with a boiling point of greater than or equal to 50° C., and (ii) at least one fire retardant corresponding to formula (I) RF-L-RH  (I) in which RF is a perfluorinated or partially fluorinated group, RH is a hydrocarbon-based group, and L is a linker. The invention also relates to the use of at least one fire retardant of formula (I), in a composition for cooling a propulsion system of an electric or hybrid vehicle, and more particularly its power electronics and its batteries, to give it ignition-resistance properties, said cooling composition comprising at least one hydrocarbon-based fluid with a boiling point of greater than or equal to 50° C.
    Finally, the invention relates to a process for cooling and fire-protecting at least one battery of a propulsion system of an electric or hybrid vehicle, comprising at least one step of placing at least one battery in contact with a composition according to the invention.

    Block copolymers, their preparation and their use as lubricants
    60.
    发明授权
    Block copolymers, their preparation and their use as lubricants 失效
    嵌段共聚物,它们的制备及其作为润滑剂的用途

    公开(公告)号:US6133211A

    公开(公告)日:2000-10-17

    申请号:US960717

    申请日:1997-10-30

    摘要: Block copolyethers having general formula (I):RX--(CH.sub.2 --CHR.sub.1 --O--).sub.x --(--CH.sub.2 CHR.sub.2 --O--).sub.y --(--CH.sub.2 --CHR.sub.3 --O--).sub.z --R.sub.4wherein:R is selected from H, alkyl, alkylaryl;X is selected from O, S and N;R.sub.1, R.sub.2 and R.sub.3 are selected from H, CH.sub.3, and C.sub.2 -C.sub.10 alkyl radicals;R.sub.4 is selected from H, alkyl, acyl;x,y,z represent the number of ether units and are integers which have such values that the molecular weight of the compound having general formula (I) is between 600 and 4000, and in addition (x+z)/y is between 1.5 and 5.0; with the proviso that:a) either R.sub.1 and R.sub.3 are selected from H and CH.sub.3, in which case R.sub.2 is selected from C.sub.2 to C.sub.10 alkyl radicals,b) or R.sub.1 and R.sub.3 are selected from C.sub.2 -C.sub.10 alkyl radicals, in which case R.sub.2 is selected from H and CH.sub.3.

    摘要翻译: 具有通式(I)的嵌段共聚醚:RX-(CH2-CHR1-O-)x - ( - CH2CHR2-O-)y - ( - CH2-CHR3-O-)z-R4其中:R选自H, 烷基,烷基芳基; X选自O,S和N; R1,R2和R3选自H,CH3和C2-C10烷基; R4选自H,烷基,酰基; x,y,z表示醚单元的数量,并且是具有通式(I)的化合物的分子量在600和4000之间的值的整数,另外(x + z)/ y在1.5 和5.0; 条件是:a)R 1和R 3选自H和CH 3,在这种情况下,R 2选自C 2至C 10烷基,b)或R 1和R 3选自C 2 -C 10烷基,其中R 2 选自H和CH3。