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    VINYL AROMATIC-(VINYL AROMATIC-CO-ACRYLIC) BLOCK COPOLYMER PREPARED BY STABILIZED FREE RADICAL POLYMERIZATION
    3.
    发明专利
    VINYL AROMATIC-(VINYL AROMATIC-CO-ACRYLIC) BLOCK COPOLYMER PREPARED BY STABILIZED FREE RADICAL POLYMERIZATION 失效

    公开(公告)号：JPH11322870A

    公开(公告)日：1999-11-26

    申请号：JP8061299

    申请日：1999-03-24

    Applicant: LUBRIZOL CORP

    Inventor： VISGER DANIEL C ,  LANGE RICHARD M

    IPC: C08F4/32 ,  C08F2/38 ,  C08F293/00 ,  C10M145/14

    Abstract: PROBLEM TO BE SOLVED: To provide a preparation method for a block copolymer and to obtain block copolymers, concentrates of additives and lubricant compositions prepared by the method. SOLUTION: This method is preparation for a block copolymer including (A) a poly (vinyl aromatic) block and (B) poly (vinyl aromatic-co-acrylic) block and includes following steps; (a) a step preparing a stabilized active polymer block A by polimerizing about 5-95 mol.% filler containing at least one kind of vinyl aromatic monomer; (b) a step adding at least one acrylic monomer to a mixture of a vinyl aromatic monomer and the stabilized active polymer block of (a); and (c) a preparation of poly (vinyl aromatic-co-acrylic) block by copolymerization of the monomer by reacting with the mixture of (b) using a free radical process.

    CROSSLINKED POLYMER
    6.
    发明申请
    CROSSLINKED POLYMER 审中-公开
    交联聚合物

    公开(公告)号：WO2008058108A2

    公开(公告)日：2008-05-15

    申请号：PCT/US2007083728

    申请日：2007-11-06

    Applicant: LUBRIZOL CORP ,  JOHNSON JOHN ,  VISGER DANIEL C ,  BAUM MARINA ,  SCHOBER BARTON J ,  WANG YING

    Inventor： JOHNSON JOHN ,  VISGER DANIEL C ,  BAUM MARINA ,  SCHOBER BARTON J ,  WANG YING

    IPC: C10M145/14 ,  C10M149/06 ,  C10N30/02 ,  C10N40/04

    CPC classification number: C10M145/14 ,  C10M149/06 ,  C10N2220/021 ,  C10N2220/033 ,  C10N2230/02 ,  C10N2230/08 ,  C10N2230/68 ,  C10N2240/04 ,  C10N2240/042 ,  C10N2240/08 ,  C10N2240/10

    Abstract: The present invention provides a lubricating composition comprising: (a) an oil of lubricating viscosity; and (b) a crosslinked polymer derived from monomers comprising: (i) 0.001 wt % to 7 wt % of a di- or higher functional crosslinking monomer; (ii) 30 wt % or higher of a hydrocarbyl-substituted (meth)acrylic monomer, wherein each hydrocarbyl contains greater than 8 carbon atoms; and (iii) 0 wt % to 40 wt % of a hydrocarbyl-substituted (meth)acrylic monomer, wherein each hydrocarbyl contains 8 or fewer carbon atoms. The invention further provides a method of preparing the crosslinked polymer and its use in a lubricating composition for lubricating an internal combustion engine.

    Abstract translation: 本发明提供了一种润滑组合物，其包含：（a）具有润滑粘度的油; 和（b）衍生自单体的交联聚合物，所述单体包含：（i）0.001重量％至7重量％的二官能或更高官能交联单体; （ii）30重量％或更高的烃基取代的（甲基）丙烯酸单体，其中每个烃基含有大于8个碳原子; 和（iii）0重量％至40重量％的烃基取代的（甲基）丙烯酸单体，其中每个烃基含有8个或更少的碳原子。 本发明进一步提供了制备交联聚合物的方法及其在用于润滑内燃机的润滑组合物中的用途。

    CROSSLINKED POLYMER
    9.
    发明专利
    CROSSLINKED POLYMER 未知

    公开(公告)号：SG165412A1

    公开(公告)日：2010-10-28

    申请号：SG2010069144

    申请日：2007-11-06

    Applicant: LUBRIZOL CORP

    Inventor： JOHNSON JOHN ,  VISGER DANIEL C ,  BAUM MARINA ,  SCHOBER BARTON J ,  WANG YING

    Abstract: The present invention provides a lubricating composition comprising: (a) an oil of lubricating viscosity; and (b) a derived from monomers comprising: (i) 0.001 wt % to 7 wt % of a di- or higher functional crosslinking monomer; (ii) 30 wt % or higher of a hydrocarbyl- substituted (meth)acrylic monomer, wherein each hydrocarbyl contains greater than 8 carbon atoms; and (iii) 0 wt % to 40 wt % of a hydrocarbyl-substituted (meth)acrylic monomer, wherein each hydrocarbyl contains 8 or fewer carbon atoms. The invention further provides a method of preparing the crosslinked polymer and its use in a lubricating composition for lubricating an internal combustion engine.

    Polymeric dispersant viscosity modifier composition
    10.
    发明专利
    Polymeric dispersant viscosity modifier composition 未知

    公开(公告)号：AU2005248342A1

    公开(公告)日：2005-12-08

    申请号：AU2005248342

    申请日：2005-05-12

    Applicant: LUBRIZOL CORP

    Inventor： VISGER DANIEL C ,  SCHOBER BARTON J ,  VINCI JAMES N ,  GRISSO BRYAN A

    IPC: C10M161/00

    Abstract: The present invention provides a composition containing: (a) an oil of lubricating viscosity; (b) an amine salt of a phosphorus compound; (c) a compound selected from the group consisting of: 1) a polymeric dispersant viscosity modifier wherein the polymeric dispersant viscosity modifier excludes copolymers derived from (a) a nitrogen containing monomer; and (b) methacrylic acid esters containing from about 9 to about 25 carbon atoms in the ester group; 2) a polymeric dispersant viscosity modifier, a borated dispersant; and a sulphurised olefin; and 3) mixtures thereof. The invention further provides a process for preparing the composition and a method for improving oxidation cleanliness of surface.

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