4.
    发明专利
    未知

    公开(公告)号:BR8603151A

    公开(公告)日:1987-02-24

    申请号:BR8603151

    申请日:1986-07-07

    Applicant: OROGIL

    Abstract: Disclosed are detergent-dispersant additives useful in lubricating oils prepared by neutralizing an alkylphenol sulfonic acid, followed by sulfurizing/over-alkalinizing the salt obtained and then carbonating the resultant salt. Lubricating compositions comprising a lubricating oil and from about 1 to about 30% by weight of the final composition of a detergent-dispersant additive of the invention are also disclosed.

    5.
    发明专利
    未知

    公开(公告)号:MX26908A

    公开(公告)日:1994-01-31

    申请号:MX2690886

    申请日:1986-07-03

    Applicant: OROGIL

    Inventor: LEONE SAVINO

    Abstract: Disclosed are detergent-dispersant additives useful in lubricating oils prepared by neutralizing an alkylphenol sulfonic acid, followed by sulfurizing/over-alkalinizing the salt obtained and then carbonating the resultant salt. Lubricating compositions comprising a lubricating oil and from about 1 to about 30% by weight of the final composition of a detergent-dispersant additive of the invention are also disclosed.

    6.
    发明专利
    未知

    公开(公告)号:FR2625219A1

    公开(公告)日:1989-06-30

    申请号:FR8718013

    申请日:1987-12-23

    Applicant: OROGIL

    Inventor: LEONE SAVINO

    Abstract: Alkylsalicylate-containing detergent-dispersant additives for lubricating oils are obtained by (a) neutralizing an alkylphenol by means of an alkali metal hydroxide; (b) carboxylation of the product with carbon dioxide for maximum conversion of the initial alkali metal alkylphenate into alkali metal alkylsalicylate; (c) sulfurization-superalkalinization of the product in the presence of an alkaline earth base followed by carbonation of the product with carbon dioxide.

    7.
    发明专利
    未知

    公开(公告)号:FR2584414B1

    公开(公告)日:1987-10-30

    申请号:FR8510399

    申请日:1985-07-08

    Applicant: OROGIL

    Abstract: Disclosed are detergent-dispersant additives useful in lubricating oils prepared by neutralizing an alkylphenol sulfonic acid, followed by sulfurizing/over-alkalinizing the salt obtained and then carbonating the resultant salt. Lubricating compositions comprising a lubricating oil and from about 1 to about 30% by weight of the final composition of a detergent-dispersant additive of the invention are also disclosed.

    8.
    发明专利
    未知

    公开(公告)号:FR2625220B1

    公开(公告)日:1990-12-21

    申请号:FR8718014

    申请日:1987-12-23

    Applicant: OROGIL

    Inventor: LEONE SAVINO

    Abstract: A process for preparing alkylsalicylate superalkalinized detergent-dispersant lubricating oil additives: (a) by the acid catalyzed neutralization of C12-C30 alkylphenol with alkaline earth base in the presence of an azeotropic solvent for the water of reaction; (b) by the carboxylation of the first product with CO2 to partially convert the alkylphenate to alkylsalicylate; and (c) by sulfurization-superalkalinization of the product in the presence of sulfur, alkaline earth base, azeotropic solvent and added CO2.

    9.
    发明专利
    未知

    公开(公告)号:DE3671469D1

    公开(公告)日:1990-06-28

    申请号:DE3671469

    申请日:1986-07-04

    Applicant: OROGIL

    Abstract: Disclosed are detergent-dispersant additives useful in lubricating oils prepared by neutralizing an alkylphenol sulfonic acid, followed by sulfurizing/over-alkalinizing the salt obtained and then carbonating the resultant salt. Lubricating compositions comprising a lubricating oil and from about 1 to about 30% by weight of the final composition of a detergent-dispersant additive of the invention are also disclosed.

    10.
    发明专利
    未知

    公开(公告)号:FR2625220A1

    公开(公告)日:1989-06-30

    申请号:FR8718014

    申请日:1987-12-23

    Applicant: OROGIL

    Inventor: LEONE SAVINO

    Abstract: A process for preparing alkylsalicylate superalkalinized detergent-dispersant lubricating oil additives: (a) by the acid catalyzed neutralization of C12-C30 alkylphenol with alkaline earth base in the presence of an azeotropic solvent for the water of reaction; (b) by the carboxylation of the first product with CO2 to partially convert the alkylphenate to alkylsalicylate; and (c) by sulfurization-superalkalinization of the product in the presence of sulfur, alkaline earth base, azeotropic solvent and added CO2.

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