The Oxygen Is Part Of An Ether Linkage Or Is Bonded Directly To A Benzene Ring Patents (Class 508/292)
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Patent number: 10260019Abstract: A lubricating composition includes an oil of lubricating viscosity and an N-substituted hydroxyaromatic succinimide or a salt thereof.Type: GrantFiled: June 27, 2017Date of Patent: April 16, 2019Assignee: The Lubrizol CorporationInventors: Jayasooriya Sujith Perera, Gary M. Walker, Daniel J. Saccomando, Nicolas Proust, Stephen J. Cook
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Patent number: 9683195Abstract: The present invention aims to provide a viscosity index improver excellent in shear stability and having a low HTHS viscosity and a high viscosity index. The viscosity index improver of the present invention contains a (co)polymer (A) containing a polyolefin-based monomer as an essential monomer unit, and a base oil, wherein the absolute value of difference in solubility parameter between the (co)polymer (A) and the base oil is 0.8 to 2.0 (cal/cm3)1/2.Type: GrantFiled: February 25, 2015Date of Patent: June 20, 2017Assignee: SANYO CHEMICAL INDUSTRIES, LTD.Inventors: Shigekuni Nakada, Ayumu Sakaguchi, Takenori Tatsumi, Hiroki Yamashita
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Publication number: 20140187455Abstract: Disclosed is an ultra-low SAPS lubricating oil composition comprising: an oil of lubricating viscosity; an aromatic dicarboxylic acid treated dispersant supplying at least 0.30 wt % of the aromatic dicarboxylic acid to said lubricating oil composition; an ashless peroxide decomposer present at a treat rate of from about 0.4 to 5.0 wt %; a metal deactivator wherein the metal deactivator is present at a treat rate of greater than 0.08 wt %; wherein said lubricating oil composition contains less than 1000 ppm sulfur, less than 300 ppm phosphorus and less than 0.25 wt % sulfated ash.Type: ApplicationFiled: December 28, 2012Publication date: July 3, 2014Applicant: Chevron Oronite LLCInventors: Katsumi Umehara, Willem Van Dam
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Publication number: 20090258803Abstract: Copolymers made with quasi-living polyolefins and unsaturated acidic reactants, dispersants using same, and methods of making same are provided. Under one aspect, a copolymer of an unsaturated acidic reactant and high molecular weight polyolefin, wherein the polyolefin comprises an exo-olefin terminated quasi-living polymeric product, is provided. The quasi-living polymeric product is formed, e.g., by forming a quasi-living cationic polyolefin under suitable quasi-living conditions, and contacting the cationic polyolefin with an agent selected to convert the cationic polyolefin to the exo-olefin terminated quasi-living polymeric product. The cationic polyolefin can be formed, e.g.Type: ApplicationFiled: April 14, 2008Publication date: October 15, 2009Inventor: James J. Harrison
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Patent number: 7049273Abstract: This invention relates to a novel multi-functional fuel and lubricant additive that provides dispersancy properties as well as viscosity index improver credit and, improved fuel economy. The invention further relates to concentrates, and to fuel and lubricating oil compositions containing said additive or concentrates. Finally, the invention provides methods for improving fuel economy, improving dispersancy, and for preparing the hybridized, acylated olefin copolymer useful as an oil additive.Type: GrantFiled: July 17, 2002Date of Patent: May 23, 2006Assignee: Afton Chemical Intangibles LLCInventors: Carl K. Esche, Jr., Charles Thomas West
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Patent number: 6800596Abstract: An improved dispersant is prepared by cross-linking a succinimide under Mannich reaction conditions with a polyphenolic compound. The amount of cross-linking, and the resulting size of the reaction product dispersant can be varied by varying the molecular equivalent ratios of succinimide and polyphenol. Lubricating oils containing the dispersant of the reaction product display superior performance.Type: GrantFiled: May 9, 2003Date of Patent: October 5, 2004Assignee: Afton Chemical Intangibles, LLCInventor: John T. Loper
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Patent number: 6770605Abstract: A composition suitable for reducing sludge and degradation of elastomer seals in engines comprises an oil of lubrication viscosity and a minor amount of a sludge preventing/seal protecting nitrogen containing dispersant, which is a reaction product of a hydrocarbyl-substituted succinic acylating agent having a limited amount of low molecular weight substituent; and a polyamine or condensed polyamine containing less than 20 mole percent of polyamine components of 6 or fewer nitrogen atoms.Type: GrantFiled: September 11, 2000Date of Patent: August 3, 2004Assignee: The Lubrizol CorporationInventors: Carl F. Stachew, Gordon D. Lamb, William D. Abraham, Mary Galic Raguz
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Publication number: 20030220206Abstract: Lubricant compositions comprises a lubricant base oil and one or more compounds resulting the modification of a succinimide represented by formula (1) or (2) 1Type: ApplicationFiled: April 10, 2003Publication date: November 27, 2003Applicant: Nippon Mitsubishi Oil CorporationInventors: Kenichi Komiya, Naozumi Arimoto, Noboru Ishida, Shinichi Shirahama, Eitaro Morita
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Publication number: 20030171225Abstract: A composition suitable for reducing sludge and degradation of elastomer seals in engines comprises an oil of lubrication viscosity and a minor amount of a sludge preventing/seal protecting nitrogen containing dispersant, which is a reaction product of a hydrocarbyl-substituted succinic acylating agent having a limited amount of low molecular weight substituent; and a polyamine or condensed polyamine containing less than 20 mole percent of polyamine components of 6 or fewer nitrogen atoms.Type: ApplicationFiled: March 3, 2003Publication date: September 11, 2003Applicant: The Lubrizol CorporationInventors: Carl F. Stachew, Gordon D. Lamb, William D. Abraham, Mary Galic Raguz
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Patent number: 6306801Abstract: A lubricating oil composition having an excellent sludge formation inhibiting effect and being suitable for use as an engine oil is provided. The lubricating oil composition includes: a lubricating base oil, (A) 0.5 to 20% by mass of acylated bissuccinimide, (B) 0.05 to 0.3% by mass of zinc dithiophosphate in terms of the phosphorus content, and (C) 0.5 to 4.0% by mass of metallic detergent in terms of the sulfated ash content, based on the total mass of the composition.Type: GrantFiled: October 21, 1999Date of Patent: October 23, 2001Assignee: Nippon Mitsubishi Oil CorporationInventors: Kazuhiro Yagishita, Yoko Matsuyama, Osamu Kurosawa
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Patent number: 5849047Abstract: This invention concerns the utilization of polymeric compounds generated from Mannich base macromonomers as lubricant oil and fuel additives or intermediates to such additives. Requisite macromonomers are generated via Mannich reaction of high molecular weight alkyl phenols and unsaturated amines. Homopolymers of the Mannich base macromonomers or copolymers with activated unsaturated monomers, such as maleic anhydride, are of particular interest as crankcase dispersants. For example, functionalization of Mannich base macromonomer/maleic anhydride copolymers with amines affords effective crankcase dispersants. Such polymeric dispersants are designed to impart superior sludge protection and improved viscometrics to lubricant oils.Type: GrantFiled: November 1, 1996Date of Patent: December 15, 1998Assignee: Ethyl CorporationInventors: Daniel Y. F. Yu, Carl A. Mike
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Patent number: 5783735Abstract: A process for preparing polymeric amides is disclosed. The process comprises sequentially reacting a hydrocarbon polymer functionalized (e.g., via the Koch reaction) to contain acid, ester, thioacid and/or thioester groups with a heavy polyamine to form a partially derivatized product in which at least about 85% of the functional groups are converted to heavy (thio)amide groups, and then reacting the partially derivatized product with an excess of light amine to complete the derivatization by converting substantially all of the remaining functional groups to light (thio)amide groups. Products of the foregoing process are also disclosed, which products are useful as additives in fuels and in lubricants.Type: GrantFiled: May 25, 1995Date of Patent: July 21, 1998Assignee: Exxon Chemical Patents Inc.Inventors: Jacob I. Emert, Joseph V. Cusumano, David C. Dankworth, William D. Diana, William B. Eckstrom, Keith R. Gorda, Antonio Gutierrez, Jon E. Stanat, Warren A. Thaler, Stephen Zushma
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Patent number: 5735915Abstract: A simplified process for preparation of an alkenylsuccinimide or a polyalkenylsuccinimide is described, characterized in that it comprises successively: a stage (a) in which an alkenylsuccinic anhydride or a polyalkenylsuccinic anhydride is prepared by bringing about an ene-synthesis reaction between at least one olefin or one polyolefin and at least one unsaturated dicarboxylic anhydride that is selected from maleic anhydride and the maleic anhydrides that are substituted by 1 or 2 methyl groups, characterized in that said reaction is carried out within at least one aromatic solvent that is selected from toluene and the xylenes that are used at a ratio of between 30 to 70% by weight of the reaction mixture and in which a fraction of said unsaturated dicarboxylic anhydride does not react with said olefin or polyolefin; a stage (b) in which the product of stage (a) that contains unsaturated, unreacted dicarboxylic anhydride is reacted with at least one alcohol or an amine; and a stage (c) in which the productType: GrantFiled: January 17, 1997Date of Patent: April 7, 1998Assignee: Institut Francais du PetroleInventors: Patrick Gateau, Daniel Binet, Fabrice Paille, Jean-Pierre Durand