ALKYLATED HYDROXYAROMATIC COMPOUND FROM CONVENTIONAL AND HIGH VINYLIDENE POLYISOBUTYLENES AND COMPOSITIONS AND PROCESSES THEREOF

    公开(公告)号:SG147449A1

    公开(公告)日:2008-11-28

    申请号:SG2008077927

    申请日:2004-11-03

    Applicant: LUBRIZOL CORP

    Abstract: ALKYLATED HYDROXYAROMATIC COMPOUND FROM CONVENTIONAL AND HIGH VINYLIDENE POLYISOBUTYLENES AND COMPOSITIONS AND PROCESSES THEREOF An additive composition comprises a Mannich reaction product of a) a polyisobutylene (PIB) alkylated hydroxyaromatic compound, b) an aldehyde, and c) an amine containing at least one reactive amino group where the PIB is derived from a conventional PIB and a high vinylidene PIB. A fuel additive concentrate composition, a fuel composition, and a method to reduce deposit formation in a fuel system of an internal combustion engine employ the additive composition that comprises the Mannich reaction product which is unexpectedly effective in reducing deposits. A PIB alkylated hydroxyaromatic compound, that is prepared from a mixture of high vinylidene and conventional PIBs, is both a functional additive and an intermediate to a functional additive and the process to prepare it involves running the alkylation reaction at 5 to 40 degree C. Figure 1A

    Method of operating a direct injection spark-ignited engine with a fuel composition

    公开(公告)号:AU2003215266A8

    公开(公告)日:2003-09-29

    申请号:AU2003215266

    申请日:2003-02-18

    Applicant: LUBRIZOL CORP

    Abstract: The present invention is directed to a method to clean up or keep clean the fuel system of a direct injection spark-ignited engine by operating the engine with a fuel composition that includes a liquid fuel and a fuel additive composition. The fuel additive composition useful in the present invention has at least one nitrogen-containing dispersant and optionally a fluidizer where the dispersant has a specific lipophilic parameter and the dispersant or the dispersant and the fluidizer have a specific hydrophilic-lipophilic parameter, the dispersant provides about 0.15 to about 50 ppm by weight nitrogen in the fuel composition, and the fluidizer and/or the dispersant provide about 10 to about 10,000 ppm by weight active components in the fuel composition. The method of the present invention is effective in controlling deposits in fuel injectors and combustion chambers of a direct injection spark-ignited engine.

    Compositions containing polyalkene-subsituted amine and polyether alcohol

    公开(公告)号:AU744324B2

    公开(公告)日:2002-02-21

    申请号:AU2370199

    申请日:1999-04-12

    Applicant: LUBRIZOL CORP

    Abstract: The present invention is directed to a composition containing A) at least one polyalkenene substituted amine; and B) at least one hydrocarbyl-terminated poly(oxypropylene) monool represented by the formula wherein in formula (B-I), R is an alkyl or an alkyl-substituted aromatic group of about 8 to about 20 carbon atoms; x is a number from about 13 to about 28; and wherein the weight ratio of component (A) to component (B) ranges from about 10:1 to about 1:10. The composition is useful as a fuel additive for reducing intake valve deposits or for improving the valve stick performance of an internal combustion engine. The invention also relates to concentrates and fuel compositions containing the foregoing fuel additive composition and to a method for reducing intake valve deposits or for improving the valve stick performance of an internal combustion engine.

    Compositions containing polyalkene-subsituted amine and polyether alcohol

    公开(公告)号:AU2370199A

    公开(公告)日:1999-10-21

    申请号:AU2370199

    申请日:1999-04-12

    Applicant: LUBRIZOL CORP

    Abstract: The present invention is directed to a composition containing A) at least one polyalkenene substituted amine; and B) at least one hydrocarbyl-terminated poly(oxypropylene) monool represented by the formula wherein in formula (B-I), R is an alkyl or an alkyl-substituted aromatic group of about 8 to about 20 carbon atoms; x is a number from about 13 to about 28; and wherein the weight ratio of component (A) to component (B) ranges from about 10:1 to about 1:10. The composition is useful as a fuel additive for reducing intake valve deposits or for improving the valve stick performance of an internal combustion engine. The invention also relates to concentrates and fuel compositions containing the foregoing fuel additive composition and to a method for reducing intake valve deposits or for improving the valve stick performance of an internal combustion engine.

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