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    POLYMERISATION CATALYSTS
    1.
    发明公开
    POLYMERISATION CATALYSTS 审中-公开
    聚合催化剂

    公开(公告)号：EP1115759A1

    公开(公告)日：2001-07-18

    申请号：EP99936790.7

    申请日：1999-07-28

    Applicant: BP CHEMICALS (ADDITIVES) LIMITED

    Inventor： WEATHERHEAD, Richard, Henry

    IPC: C08F10/00 ,  C08F4/642

    CPC classification number: C08F10/00 ,  C08F4/65922 ,  C08F110/06 ,  C08F4/65912 ,  C08F2500/03 ,  C08F2500/02

    Abstract: A catalyst system suitable for preparing substantially terminally unsaturated atactic polymers or copolymers of α - olefins having a number average molecular weight in the range 300 - 500,000 comprises: A) a metallocene complex; and B) a cocatalyst comprising: i) an aluminoxane; and ii) a Group III metal alkyl compound having at least 2 carbon atoms. The use of the Group III metal compound allows for a reduction in the aluminoxane content in the cocatalyst. Preferred metallocenes are those having alkyl substitution on the cyclopentadienyl rings and the preferred Group III metal alkyl compound is triisobutyl aluminium.

    Highly overbased lubricating oil additive concentrates, their preparation and use
    3.
    发明公开
    Highly overbased lubricating oil additive concentrates, their preparation and use 失效
    HochüberbasischeSchmieröladditivkonzentrate，ihre Herstellung und Verwendung。

    公开(公告)号：EP0643126A2

    公开(公告)日：1995-03-15

    申请号：EP94306507.8

    申请日：1994-09-01

    Applicant: BP CHEMICALS (ADDITIVES) LIMITED

    Inventor： Cane, Charles ,  Cook, Stephen James

    IPC: C10M159/22

    CPC classification number: C07G17/008 ,  C10M159/22

    Abstract: An additive concentrate having a TBN greater than 300 suitable for incorporation into a finished lubricating oil composition comprising:-
    (I) a lubricating oil soluble sulphurised or non-sulphurised alkaline earth metal hydrocarbyl phenate derived either from a hydrocarbyl phenate or its precursors and modified by reaction to incorporate:

    (i) an aldehyde, and
    (ii) from greater than 2 to less than 40% by weight based on the weight of the concentrate of either (a) at least one carboxylic acid having the formula:-
    wherein R is a C₁₀ to C₂₄ alkyl or alkenyl group and R¹ is either hydrogen, a C₁ to C₄ alkyl group or a -CH₂-COOH group, or an anhydride or ester thereof, or (b) a di- or polycarboxylic acid containing from 36 to 100 carbon atoms or an anhydride or ester thereof, and (II) a lubricating oil,

    wherein the amount of lubricating oil (II) in the additive concentrate is such that the ratio of the weight of the additive concentrate to the weight of the hydrocarbyl phenate or its precursors from which the modified sulphurised or non-sulphurised phenate is derived is at least 3.0.

    Abstract translation: TBN大于300的添加剂浓缩物适于掺入成品润滑油组合物中，其包含： - （I）衍生自烃基酚盐或其前体的润滑油可溶性硫化或非硫化碱土金属烃基酚盐，并由 以下的反应：（i）醛，和（ii）基于（a）至少一种具有下式的羧酸的浓缩物的重量，大于2至小于40重量％： - 其中R为C 10至C 24烷基或烯基，R 1为氢，C 1至C 4烷基或-CH 2 -COOH基，或其酸酐或酯，或（b）二羧酸或多元羧酸 含有36至100个碳原子的酸或其酸酐或酯，和（II）润滑油，其中添加剂浓缩物中的润滑油（II）的量使得添加剂浓缩物的重量与 烃基酚盐或其重量 经修饰的硫化或非硫化酚盐得自其的前体至少为3.0。

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