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    Lubricant with a higher molecular weight copolymer lube oil flow improver
    26.
    发明专利
    Lubricant with a higher molecular weight copolymer lube oil flow improver 未知

    公开(公告)号：AU718203B2

    公开(公告)日：2000-04-06

    申请号：AU4752997

    申请日：1997-10-10

    Applicant: EXXON CHEMICAL PATENTS INC

    Inventor： REDPATH JOHN VINCENT ,  LAPINAS ARUNAS THOMAS ,  MARTELLA DAVID JOHN ,  ROSSI ALBERT ,  DAVIS WILLIAM MYERS

    IPC: C10M101/00 ,  C10M145/14 ,  C10M157/00 ,  C10M169/04 ,  C10N20/04 ,  C10N30/02 ,  C10N40/04 ,  C10M145/16

    Abstract: A lubricant which comprises: a mineral oil basestock which has been dewaxed via catalytic cracking and/or catalytic isomerization; an alkylene-alkylene copolymer; and a lubricating oil flow improver formed from the reaction product of: (a) an unsaturated carboxy ester formed via the esterification of an unsaturated carboxylic acid or its corresponding anhydride with a monohydric aliphatic alcohol having an average carbon number of between about 10 to 18, the unsaturated carboxy ester having the formula: wherein R' is selected from the group consisting of hydrogen and COOR and wherein R is a C6 to C22 alkyl group; and (b) a monomer selected from the group consisting of (i) a vinyl ester having the formula: wherein R1 comprises an alkyl group containing from 1 to 18 carbon atoms; (ii) an olefin having the formula wherein R1 and R2 can independently be hydrogen, an alkyl having from 1 to 28 carbon atoms, or a substituted aryl group, provided both R1 and R2 are not hydrogen, the reaction product having a specific viscosity in the range between about 0.3 to 1.5, or a weight average molecular weight of between about 50,000 to 350,000 Daltons.

    27.
    发明专利
    未知

    公开(公告)号：DE69505527T2

    公开(公告)日：1999-06-10

    申请号：DE69505527

    申请日：1995-06-09

    Applicant: EXXON CHEMICAL PATENTS INC

    Inventor： ROSSI ALBERT ,  EMERT JACOB ,  THALER WARREN

    IPC: C10L1/192 ,  C08F8/00 ,  C10L1/18 ,  C10L1/195 ,  C10L1/198 ,  C10L1/22 ,  C10L1/238 ,  C10L1/30 ,  C10L10/08 ,  C10L10/18 ,  C10M129/92 ,  C10M129/93 ,  C10M129/95 ,  C10M133/52 ,  C10M139/00 ,  C08F8/32

    Abstract: Oil-soluble dispersant additives are disclosed. The additives comprise the reaction product of a functionalized 1-butene copolymer and at least one nucleophilic reactant selected from amines, amino alcohols, alcohols, and reactive metal compounds. The functionalized copolymer has within its structure at least one acyl functional group selected from the group consisting of C4 to C10 dicarboxylic acids and derivatives thereof and C3 to C10 monocarboxylic acids and derivatives thereof. The 1-butene copolymer is derived from 1-butene and at least one other alpha -olefin of formula CH2=CHR', wherein R' is methyl or a C3 to C12 linear or branched alkyl group. The copolymer has a number average molecular weight of at least about 700, a molecular weight distribution of less than 5, and ethenylidene groups terminating at least about 30% of all polymer chains. The dispersant additives are useful in oleaginous compositions including lubricating oil compositions and concentrates and fuel compositions.

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