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    Fluorinated greases having a low torque at low temperatures
    141.
    发明公开
    Fluorinated greases having a low torque at low temperatures 审中-公开
    Fluorierte Schmierfettszusammensetzungen mit niedrigem Drehmoment bei tiefen温度

    公开(公告)号：EP1731593A2

    公开(公告)日：2006-12-13

    申请号：EP06010616.8

    申请日：2006-05-23

    Applicant: Solvay Solexis S.p.A.

    Inventor： Maccone, Patrizia

    IPC: C10M107/38 ,  C10M169/02

    CPC classification number: C10M107/38 ,  C10M169/02 ,  C10M2201/041 ,  C10M2201/061 ,  C10M2201/062 ,  C10M2201/1026 ,  C10M2201/1056 ,  C10M2207/10 ,  C10M2207/123 ,  C10M2213/04 ,  C10M2213/043 ,  C10M2213/0626 ,  C10M2217/00 ,  C10M2217/04 ,  C10M2217/06 ,  C10M2219/08 ,  C10M2223/08 ,  C10M2227/06 ,  C10M2227/066 ,  C10N2210/06 ,  C10N2220/021 ,  C10N2220/082 ,  C10N2230/04 ,  C10N2230/06 ,  C10N2230/10 ,  C10N2230/12 ,  C10N2240/06 ,  C10N2240/30 ,  C10N2260/09

    Abstract: Fluorinated greases comprising:
    (A) from 1% to 50% by weight of a thickener;
    (B) from 99% to 50% by weight of a mixture of:
    (B1) from 0,1 to 100% by weight of a compound of structure:

             X 1 -O (CF 2 O) n (CF 2 CF 2 O) m (CF 2 CF 2 CF 2 O) p (CF 2 CF 2 CF 2 CF 2 O) q -X 2      (I)

    wherein:
    X 1 , X 2 have formula -(CF 2 ) z CF 3 wherein z is an integer between 0 and 3; n is an integer between 1 and 200; m is an integer between 0 and 200; p, q are integers between 0 and 10; with the proviso that:
    the (p+q)/(p+q+m+n) ≤0.05; m/n ≤0.7; the number average molecular weight of (I) is between 1,000 and 10,000; the kinematic viscosity at 40°C is lower than 20 cSt; and

    (B2) from 99.9% to 0% by weight of a perfluoropolyether oil having a kinematic viscosity at 40°C higher than 15 cSt and comprising repeating units of the type (CFXO) wherein X is F or CF 3 ; -CF 2 CF 2 O-, -C 3 F 6 O, -CF(CF 3 )CF 2 O-, -CF 2 CF(CF 3 )O-, statistically distributed along the chain.

    Abstract translation: 氟化润滑脂，其包含：（A）1重量％至50重量％的增稠剂; （B）99重量％至50重量％的混合物：（B1）0.1至100重量％的结构化合物：ƒ€ƒ€ƒ€ƒ€ƒ€ƒ X 1 -O（CF 2 O）n（CF 2 CF 2 O）m（CF 2 CF 2 CF 2 O）p（CF 2 CF 2 CF 2 CF 2 O）q -X 2€ƒ€ƒ€ ƒƒ（I）其中：X 1，X 2具有式 - （CF 2）z CF 3，其中z是0和3之间的整数; n是1和200之间的整数; m是介于0和200之间的整数; p，q是0和10之间的整数; 条件是：（p + q）/（p + q + m + n）‰0.05; m / n‰0.7; （I）的数均分子量在1,000和10,000之间; 40℃下的运动粘度低于20 cSt; 和（B2）99.9重量％至0重量％的在40℃下运动粘度高于15cSt的全氟聚醚油，并且包含其中X为F或CF 3的类型（CFXO）的重复单元; -CF 2 CF 2 O-，-C 3 F 6 O，-CF（CF 3）CF 2 O-，-CF 2 CF（CF 3）O-，沿着链统计分布。

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