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    41.
    发明专利
    未知

    公开(公告)号：AT89293T

    公开(公告)日：1993-05-15

    申请号：AT88906737

    申请日：1988-06-29

    Applicant: LUBRIZOL CORP

    Inventor： KARN JACK LEE ,  NICHOLS WILLIS PERRY

    IPC: B01J27/12 ,  C07B61/00 ,  C07C2/14 ,  C07C2/28 ,  C07C11/02 ,  C08F20060101 ,  C08F4/14 ,  C08F10/00 ,  C08F110/00 ,  C08F110/06

    Abstract: A process for preparing a lower alkene polymer from a lower alkene feedstream, including the steps of: (A) contacting the lower alkene monomer with a catalyst system comprising boron trifluoride and at least one acid selected from the group consisting of sulfuric acid, sulfurous acid, phosphoric acids and strong acid resins and (B) polymerizing the lower alkene monomer in the presence of the catalyst system at a temperature of about -3 DEG C. to about -30 DEG C. thereby obtaining a lower alkene polymer having a molecular weight of about 250 to about 500.

    42.
    发明专利
    未知

    公开(公告)号：NO172442B

    公开(公告)日：1993-04-13

    申请号：NO891120

    申请日：1989-03-15

    Applicant: LUBRIZOL CORP

    Inventor： KARN JACK LEE ,  NICHOLS WILLIS PERRY

    IPC: B01J27/12 ,  C07B61/00 ,  C07C2/14 ,  C07C2/28 ,  C07C11/02 ,  C08F20060101 ,  C08F4/14 ,  C08F10/00 ,  C08F110/00 ,  C08F110/06

    Abstract: A process for preparing a lower alkene polymer from a lower alkene feedstream, including the steps of: (A) contacting the lower alkene monomer with a catalyst system comprising boron trifluoride and at least one acid selected from the group consisting of sulfuric acid, sulfurous acid, phosphoric acids and strong acid resins and (B) polymerizing the lower alkene monomer in the presence of the catalyst system at a temperature of about -3 DEG C. to about -30 DEG C. thereby obtaining a lower alkene polymer having a molecular weight of about 250 to about 500.

    43.
    发明专利
    未知

    公开(公告)号：MX9201753A

    公开(公告)日：1992-10-01

    申请号：MX9201753

    申请日：1992-04-14

    Applicant: LUBRIZOL CORP

    Inventor： SALOMON MARY FRISINGER ,  DAVIS KIRK EMERSON ,  KARN JACK LEE ,  CAHOON JOHN MELVIN

    IPC: C10M20060101 ,  C10M163/00 ,  C10N10/02 ,  C10N10/04 ,  C10N20/04 ,  C10N30/04 ,  C10N30/10 ,  C10N40/25 ,  F02F7/00 ,  C10M105/22

    Abstract: This invention relates to a lubricating oil composition, comprising: a major amount of an oil of lubricating viscosity; and (A) an amount of at least one alkali metal overbased salt of an acidic organic compound sufficient to provide at least about 0.005 equivalents of alkali metal per 100 grams of the lubricating composition; (B) at least about 1.13% by weight of at least one dispersant; (C) at least one metal dihydrocarbyl dithiophosphate; and (D) at least one antioxidant, provided that the lubricating oil composition is free of calcium overbased sulfonate; provided that the composition contains less than about 0.08% by weight calcium; and provided that (C) and (D) are not the same.

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