Polymer Of Alpha, Beta-olefinically Unsaturated Dicarboxylic Acid Ester Monomer, Or Of Esterified Alpha, Beta-olefinically Unsaturated Dicarboxylic Acid Or Anhydride Monomer (e.g., Copolymer Of Maleic Acid Ester And Vinyl Alkyl Ether, Etc.) Patents (Class 508/466)
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Patent number: 9809780Abstract: The present invention provides a process for preparing a polymer, employing the steps of: (1) contacting a free radical initiator; a chain transfer agent containing a thiocarbonyl thio group and a free radical leaving group; and a radically polymerizable monomer, to form a polymer chain; and (2) contacting the polymer chain of step (1) with at least one of a polyvalent coupling agent, a polymerization inhibitor, a grafting acylating agent, an amine and an oil of lubricating viscosity. The invention further provides compositions and uses for the polymer.Type: GrantFiled: July 8, 2013Date of Patent: November 7, 2017Assignee: The Lubrizol CorporationInventors: Marina Baum, Barton J. Schober, Mark C. Davies, Daniel C. Visger, John R. Johnson
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Patent number: 9534189Abstract: Hydraulic fluid and fire-resistant fluid compositions and methods of using the compositions are provided. In an embodiment, the present invention provides a method of utilizing fire-resistant fluid in hydraulic systems. For example, the method can comprise utilizing fire-resistant fluid in hydraulic systems of casters found in steel mills, in an environment where fire safety is of concern. The fire-resistant composition can comprise one or more glycerin by-products derived from a biodiesel manufacturing process. The fire-resistant composition can also comprise one or more glycerin by-products of transesterification reactions involving triglycerides. The fire-resistant fluid can be added to hydraulic systems as a solution.Type: GrantFiled: September 21, 2006Date of Patent: January 3, 2017Assignee: Nalco CompanyInventors: Bo L. Tran, Joseph M. Hamnik, Stephen J. Blubaugh
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Patent number: 8859472Abstract: The present invention relates to the use of ester group-including polymers having at least one nonpolar segment P and at least one polar segment D, where the polar segment D includes at least 8 repeating units, and the proportion of dispersing repeating units in the polar segment D is at least 30% by weight based on the weight of the polar segment D, as antifatigue additive in lubricants.Type: GrantFiled: June 20, 2008Date of Patent: October 14, 2014Assignee: Evonik RohMax Additives GmbHInventors: Torsten Stoehr, Michael Mueller, Thorsten Bartels, Christoph Wincierz, Klaus Schimossek, Michael Neusius, Dieter Janssen, Miriam-Kathrin Stihulka
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Publication number: 20140274835Abstract: The invention concerns a method of increasing the dynamic coefficient of friction in an oil-lubricated friction clutch by using a lubricating oil containing at least one specific copolymer, the presence of which develops higher dynamic friction levels in the clutch.Type: ApplicationFiled: March 13, 2013Publication date: September 18, 2014Inventors: Raymond F. Watts, Joe R. Noles, JR., Michael Müller, Torsten Stöhr, Boris Eisenberg
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Patent number: 8507422Abstract: The present invention relates to the use of a RAFT polymer as an antiwear agent in a lubricant. The lubricant may be useful in a number of mechanical devices.Type: GrantFiled: April 17, 2008Date of Patent: August 13, 2013Assignee: The Lubrizol CorporationInventors: David Price, Patrick E. Mosier, Jonathan S. Vilardo, Marina Baum
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Patent number: 8288327Abstract: The invention relates to a lubricating oil composition with good frictional properties, the composition having a lubricating oil and at least one additive having friction-reducing properties. The additive with friction-reducing properties is a block copolymer having hydrophobic segments P and polar segments D. The hydrophobic segments are obtained by polymerization of monomer compositions having a) between 0 and 40 wt. %, in relation to the weight of the monomer compositions for producing the hydrophobic segments, of at least one ethylenically unsaturated ester compound of formula (I), in which R represents hydrogen or methyl, R1 represents a linear or branched alkyl radical having between 1 and 5 carbon atoms, and R2 and R3 independently represent hydrogen or a group of formula —COOR?, in which R? represents hydrogen or an alkyl group having between 1 and 5 carbon atoms.Type: GrantFiled: January 24, 2004Date of Patent: October 16, 2012Assignee: Evonik Rohmax Additives GmbHInventors: Alexander Dardin, Michael Mueller, Boris Eisenberg
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Patent number: 8067347Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one ether compound, with at least one aliphatic compound, and with at least one aromatic compound.Type: GrantFiled: October 27, 2006Date of Patent: November 29, 2011Assignee: Chevron Oronite Company LLCInventors: William R. Ruhe, Jr., Casey D. Stokes
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Patent number: 8022021Abstract: The present invention relates to a controlled release gel with an ashless component and defined ash-producing component. Further, the invention relates to the use of a controlled release gel with a controlled level of ash-producing (i.e., metal) components for delivery of additives into lubricants wherein the gel has reduced ash and SAPS producing components.Type: GrantFiled: February 5, 2007Date of Patent: September 20, 2011Assignee: The Lubrizol CorporationInventors: James D. Burrington, Lewis A. Williams, Jack C. Kelley, David A. McCaughey, Frank M. van Lier, David B. Skursha
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Patent number: 8012919Abstract: The present invention is directed to a lubricating oil composition, a diesel engine comprising a lubricating oil composition, and a method of lubricating a diesel engine provided with an exhaust gas recirculation system, comprising lubricating said engine with a lubricating oil composition comprising an oil of lubricating viscosity, and a polymeric N-dispersant booster comprising monomer units of: a) 0 to 40 wt. % of one or more ethylenically unsaturated ester compounds of formula (I) wherein R is equal to H or CH3, R1 represents a linear or branched alkyl group with 1 to 5 carbon atoms, R2 and R3 independently represent H or a group of the formula —COOR?, wherein R? is H or an alkyl group with 1 to 5 carbon atoms, b) 10 to 98 wt.Type: GrantFiled: June 29, 2009Date of Patent: September 6, 2011Assignee: Evonik Rohmax Additives GmbHInventors: Bernard Kinker, Matthias Fischer, Martin Bollinger, Robert Cybert, Ernst Bielmeier, David Cooper, Angelika Fischer, Melanie Croessmann
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Patent number: 7981848Abstract: The present invention relates to the use of a polyalkylmethacrylate polymer to improve the air release of a functional fluid.Type: GrantFiled: December 1, 2009Date of Patent: July 19, 2011Assignee: Evonik Rohmax Additives GmbHInventors: Douglas G. Placek, Christian D. Neveu, Roland Schweder, Robert P. Simko, Charles W. Hyndman
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Patent number: 7928044Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one ether compound and with at least one aromatic compound.Type: GrantFiled: October 27, 2006Date of Patent: April 19, 2011Assignee: Chevron Oronite Company LLCInventors: Casey D. Stokes, William R. Ruhe, Jr.
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Patent number: 7858566Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one polyether aromatic compound, and with at least one polyether aliphatic compound.Type: GrantFiled: October 27, 2006Date of Patent: December 28, 2010Assignee: Chevron Oronite Company LLCInventors: William R. Ruhe, Jr., Casey D. Stokes
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Patent number: 7820604Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one polyether aliphatic amine compound.Type: GrantFiled: October 27, 2006Date of Patent: October 26, 2010Assignee: Chevron Oronite Company LLCInventors: William R. Ruhe, Jr., Casey D. Stokes
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Patent number: 7820605Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one polyether aromatic compound.Type: GrantFiled: October 27, 2006Date of Patent: October 26, 2010Assignee: Chevron Oronite Company LLCInventors: Casey D. Stokes, William R. Ruhe, Jr.
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Patent number: 7816309Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one ether compound and with at least one aliphatic compound capable of reacting with at least one monocarboxylic acid or ester thereof, or dicarboxylic acid, anhydride or ester thereof.Type: GrantFiled: October 27, 2006Date of Patent: October 19, 2010Assignee: Chevron Oronite Company LLCInventors: Casey D. Stokes, William R. Ruhe, Jr.
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Patent number: 7811977Abstract: A sliding member formed of a resinous material is in sliding contact with a steel member in an automotive internal combustion engine. The resinous material includes a thermoplastic resin composition which includes a fluororesin in an amount ranging from 5 to 40 parts by weight, and a thermoplastic resin other than the fluororesin, in an amount ranging from 95 to 60 parts by weight. The fluororesin contains crosslink formed between at least a part of carbon atoms forming part of a molecule chain of the fluororesin and at least a part of carbon atoms forming part another molecular chain of the fluororesin, and active end group formed at least a part of the molecule chain of the fluororesin.Type: GrantFiled: July 15, 2009Date of Patent: October 12, 2010Assignee: Nissan Motor Co., Ltd.Inventors: Tomohito Ota, Tomihito Hashimoto
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Publication number: 20100160196Abstract: A copolymer which can be used in power transmission fluids to provide improved viscometric properties is disclosed. The copolymer includes a mixture of alcohols having side chains with an average number of carbons ranging from greater than 8 to less than 12 defined by the following formula: C n = ? i = j i = z ? X i ? Cn i ? i = j i = z ? X i where Xi is the mole fraction of alcohol (i); Cni represents the number of carbon atoms in alcohol (i); j is the lowest number of carbons in an alcohol in the copolymer and must be at least 6; and z is the highest number of carbons in an alcohol.Type: ApplicationFiled: December 23, 2008Publication date: June 24, 2010Inventors: Dean B. Clarke, Carl Waterson, Ricardo A. Bloch, David J. Martella
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Patent number: 7648950Abstract: The present invention relates to the use of a polyalkylmethacrylate polymer to improve the air release of a functional fluid.Type: GrantFiled: April 22, 2005Date of Patent: January 19, 2010Assignee: Rohmax Additives GmbHInventors: Douglas G. Placek, Christian D. Neveu, Roland Schweder, Robert P. Simko, Charles W. Hyndman
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Publication number: 20090291865Abstract: A gas turbine lubricating composition comprises a first lubricating composition and a delivery system for delivering at least one additive to said first lubricating composition in a controlled, time-release manner, thereby converting said first lubricating composition to a second lubricating composition, different from said first lubricating composition. In one embodiment, the delivery system comprises a controlled release gel. A method of lubricating a gas turbine using such lubricating composition is also disclosed.Type: ApplicationFiled: May 23, 2008Publication date: November 26, 2009Inventors: Brent L. Brennan, Helen T. Ryan
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Patent number: 7618928Abstract: An oil-soluble lubricating oil additive composition comprising (I) an oil-soluble lubricating oil additive prepared by the process which comprises reacting a copolymer, with at least one ether compound and with at least one aromatic amine and (II) at least one ashless dispersant other than the lubricating oil additive of (I), the method of making the same, a lubricating oil composition comprising the lubricating oil additive composition and a major amount of an oil of lubricating viscosity, and a method of making the same.Type: GrantFiled: August 31, 2005Date of Patent: November 17, 2009Assignee: Chevron Oronite Company LLCInventors: Casey D. Stokes, Willem Van Dam
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Patent number: 7572361Abstract: Lubricant blends and finished gear oils comprising a lubricant base oil fraction derived from highly paraffinic wax, a petroleum derived base oil, and a pour point depressant are provided. The lubricant base oil fraction derived from highly paraffinic wax comprises less than 0.30 weight percent aromatics, greater than 5 weight percent molecules with cycloparaffinic functionality, and a ratio of weight percent of molecules with monocycloparaffinic functionality to weight percent of molecules with multicycloparaffinic functionality greater than 15. The petroleum derived base oils comprises greater than 90 weight percent saturates and less than 300 ppm sulfur and is preferably selected from the group consisting of a Group II base oil, a Group III base oil, and mixtures thereof. These lubricant blends have surprising low Brookfield viscosities at ?40° C.Type: GrantFiled: December 2, 2004Date of Patent: August 11, 2009Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Stephen J. Miller, Joseph M. Pudlak
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Patent number: 7560420Abstract: The present invention is directed to a lubricating oil composition, a diesel engine comprising a lubricating oil composition, and a method of lubricating a diesel engine provided with an exhaust gas recirculation system, comprising lubricating said engine with a lubricating oil composition comprising an oil of lubricating viscosity, and a polymeric N-dispersant booster.Type: GrantFiled: December 23, 2004Date of Patent: July 14, 2009Assignee: RohMax Additives GmbHInventors: Bernard Kinker, Matthias Fischer, Martin Bollinger, Robert Cybert, Ernst Bielmeier, David Cooper, Angelika Fischer, Melanie Croessmann
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Patent number: 7510674Abstract: Dielectric fluids comprising oil fractions derived from highly paraffinic wax are provided. Further provided are processes for making these dielectric fluids comprising oil fractions derived from highly paraffinic wax. The dielectric fluids are useful as insulating and cooling mediums in new and existing power and distribution electrical apparatus, such as transformers, regulators, circuit breakers, switchgear, underground electrical cables, and attendant equipment.Type: GrantFiled: December 1, 2004Date of Patent: March 31, 2009Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Nadine L. Yenni, Joseph M. Pudlak
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Patent number: 7473345Abstract: Lubricant blends and finished gear oils comprising a lubricant base oil fraction derived from highly paraffinic wax, a petroleum derived base oil, and a pour point depressant are provided. The lubricant base oil fraction derived from highly paraffinic wax comprises less than 0.30 weight percent aromatics, greater than 5 weight percent molecules with cycloparaffinic functionality, and a ratio of weight percent of molecules with monocycloparaffinic functionality to weight percent of molecules with multicycloparaffinic functionality greater than 15. The petroleum derived base oils comprises greater than 90 weight percent saturates and less than 300 ppm sulfur and is preferably selected from the group consisting of a Group II base oil, a Group III base oil, and mixtures thereof. These lubricant blends have surprising low Brookfield viscosities at ?40° C.Type: GrantFiled: December 2, 2004Date of Patent: January 6, 2009Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Stephen J. Miller, Joseph M. Pudlak
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Patent number: 7384536Abstract: Lubricant blends and finished gear oils comprising a Fischer-Tropsch derived lubricant base oil fraction, a petroleum derived base oil, and a pour point depressant are provided. The Fischer-Tropsch derived lubricant base oil fraction comprises less than 0.30 weight percent aromatics, greater than 5 weight percent molecules with cycloparaffinic functionality, and a ratio of weight percent of molecules with monocycloparaffinic functionality to weight percent of molecules with multicycloparaffinic functionality greater than 15. The petroleum derived base oils comprises greater than 90 weight percent saturates and less than 300 ppm sulfur and is preferably selected from the group consisting of a Group II base oil, a Group III base oil, and mixtures thereof. These lubricant blends have surprising low Brookfield viscosities at ?40° C.Type: GrantFiled: May 19, 2004Date of Patent: June 10, 2008Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Stephen J. Miller, Joseph M. Pudlak
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Patent number: 7329635Abstract: A crude oil composition wherein fouling has been mitigating and a method for mitigating crude oil fouling. The composition includes crude oil and an improved dispersant material for mitigating fouling which comprises a reaction product of a polyamine and a polyisobutylene succinyl anhydride made with a polyisobutylene having a vinylidene double bond content of at least 50%. The reaction product has an active nitrogen atom content of at least about 2% by weight. The reaction product is prepared by thermally reacting the polyisobutylene with maleic anhydride to produce said polyisobutylene succinyl anhydride and thereafter reacting the polyisobutylene succinyl anhydride with a polyamine having 5 to 7 active nitrogen atoms. The method includes providing the dispersant material and dispersing the same in crude oil.Type: GrantFiled: December 6, 2006Date of Patent: February 12, 2008Assignee: Texas Petrochemicals LPInventors: Ghazi B. Dickakian, C. Edward Baxter, Jr., Jeffrey Quoc Truong
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Patent number: 6821933Abstract: The invention relates to additives for improving the flowability of mineral oils, containing: A) 1-40 wt. % of at least one copolymer, which is oil-soluble and improves the cold flow properties of mineral oil, selected from A1) copolymers consisting of 80 to 96.5 mol % ethylene and 3.5-20 mol % vinyl esters of carboxylic acids with 1-20 C atoms and/or (meth)acrylic acid esters of alcohols with 1-8 C atoms, and A2) homopolymers or copolymers of esters, containing C10-C30 alkyl radicals, of ethylenically unsaturated carboxylic acids with up to 20 mol % of other olefinically unsaturated compounds, B) 20-80 wt. % of at least one poly-alpha-olefin with a molecular weight of 250-5000, derived from monoolefins with 3-5 C atoms, and C) 5-70 wt.Type: GrantFiled: December 13, 2002Date of Patent: November 23, 2004Assignee: Clariant International Ltd.Inventors: Michael Feustel, Matthias Krull, Hans-Jörg Oschmann
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Publication number: 20020147118Abstract: A process for preparing a radial polymer comprising at least 3 polymeric arms and a central core comprising a polymerized di- or polyfunctional monomer, said process comprising the steps,Type: ApplicationFiled: March 19, 2002Publication date: October 10, 2002Inventors: Daniel C. Visger, Richard M. Lange
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Patent number: 6402983Abstract: Disclosed herein is a flame retardant hydraulic oil excellent in the flame retardancy, unaccompanied by the dangers of pinhole fire at sites of use and giving rise to no environmental contamination. This flame retardant hydraulic oil contain a hydraulic base oil comprising as the essential component an polyol partial ester which is a product formed by reacting (A) a polyol having a total of 6 to 22 carbon atoms and a total of 3 to 6 hydroxyl groups with (B) an acyclic monocarboxylic acid having a total of 6 to 22 carbon atoms. Said polyol partial ester has a hydroxyl value of 35 mg KOH/g or more, a flash point of 290° C. or higher and an average molecular weight of 600 to 1,500.Type: GrantFiled: July 11, 1995Date of Patent: June 11, 2002Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuaki Abe, Hiromichi Seiki, Mitsuhiro Iwata
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Patent number: 6361711Abstract: Disclosed herein is a flame retardant hydraulic oil excellent in the flame retardancy, heat stability and oxidative stability, unaccompanied by the dangers of pinhole fire and giving rise to no environmental contamination. This flame retardant hydraulic oil contains a hydraulic base oil including as the essential component a synthetic ester, which is a product formed by reacting (A) at least one polyol selected from the group consisting of neopentyl glycol, 2,2-dimethyl-3-hydroxypropyl-2′,2′-dimethyl-3′-hydroxypropionate, glycerin and trimethylolpropane with (B) a carboxylic acid including 15 to 85% by mole of oleic acid based on the total carboxylic acid and 15 to 85% by mole of isostearic acid based on the total carboxylic acid or a carboxylic acid obtained by incorporating into the carboxylic acid 85% by mole or less of monocarboxylic acid having 6 to 22 carbon atoms (excluding oleic acids and isostearic acids) based on the total carboxylic acid.Type: GrantFiled: June 13, 1995Date of Patent: March 26, 2002Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuaki Abe, Hiromichi Seiki, Mitsuhiro Iwata
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Publication number: 20010049344Abstract: A process is disclosed for manufacturing a lubricant composition comprising combining a superabsorbent polymer a with a material for decreasing friction between moving surfaces. The superabsorbent polymer absorbs from about 25 to greater than 100 times its weight in water and may comprise a polymer of acrylic acid, an acrylic ester, acrylonitrile or acrylamide, including co-polymers thereof or starch graft co-polymers thereof or mixtures thereof. A product produced by the process includes the material for decreasing friction comprising a petroleum lubricant containing an additive, water containing an additive, synthetic lubricant, grease, solid lubricant or metal working lubricant, wherein the synthetic lubricant, grease, solid lubricant or metal working lubricant optionally contain an additive. A process comprising controlling the delivery of a lubricant to at least one of two moving surfaces in order to decrease friction between said moving surfaces, is also disclosed.Type: ApplicationFiled: February 9, 2001Publication date: December 6, 2001Applicant: LEE COUNTY MOSQUITO CONTROL DISTRICTInventor: Richard Levy
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Publication number: 20010044389Abstract: Transmission lubricant compositions comprise a mineral oil as a base oil of which % CP and % CA defined in ASTM D 3238 are 70 or more and 3 or less, respectively, a viscosity index improver, and a friction modifier. The transmission lubricant compositions have excellent low temperature fluidity, shear stability, and durability of anti-shudder properties and thus can be used for extended periods of time.Type: ApplicationFiled: March 21, 2001Publication date: November 22, 2001Applicant: Nippon Mitsubishi Oil CorporationInventors: Kenichi Komiya, Akira Yaguchi, Osamu Kurosawa
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Patent number: 6300288Abstract: A grease of an oil of lubricating viscosity, a polyolefin having grafted acid functionality, a metallic species capable of interacting with the acid functionality of said polyolefin to cause association among the acid groups and a co-thickening agent, has improved rheological properties. The co-thickening agent and the metallic species can together comprise a gelled overbased material, particularly an overbased carboxylate.Type: GrantFiled: March 31, 1994Date of Patent: October 9, 2001Assignee: The Lubrizol CorporationInventors: Curtis R. Scharf, Steven R. Twining, Patricia R. Todd
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Patent number: 6174843Abstract: This invention provides a composition and a method of using the composition for dispersing wax and improving the pour point of lubricating oils. The composition comprises an esterified styrene-maleic anhydride copolymer and an esterified alpha-olefin maleic anhydride copolymer.Type: GrantFiled: November 17, 1994Date of Patent: January 16, 2001Assignee: Nalco Chemical CompanyInventors: Kim B. Peyton, Sophia L. Wang
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Patent number: 6100224Abstract: A copolymer comprising units of an unsaturated dicarboxylic monomer and an ethylene .alpha.-olefin macromer is disclosed. The macromer is an unsaturated ethylene .alpha.-olefin polymer comprising units of from ethylene and at least one .alpha.-olefin represented by the formula CH.sub.2 .dbd.CHR.sup.a, wherein R.sup.a is a C.sub.1 to C.sub.18 linear alkyl group or a C.sub.3 to C.sub.18 branched alkyl group; the ethylene .alpha.-olefin polymer has a number average molecular weight of from about 500 to about 100,000; and at least about 30% of the unsaturation in the ethylene .alpha.-olefin polymer is terminal vinylidene. The copolymer has a carbon-carbon backbone and contains succinic groups and hydrocarbyl groups. The copolymer can be derivatized by reaction with nucleophilic reactants including monoamines, polyamines, monoalcohols, polyols, amino alcohols, reactant metal compounds and mixtures thereof. The derivatized copolymers can be post-treated (e.g., borated) with one or more post-treating agents (e.g.Type: GrantFiled: October 1, 1997Date of Patent: August 8, 2000Assignee: Exxon Chemical Patents IncInventors: Dennis G. Peiffer, Kenneth Lewtas, Robert D. Lundberg, Pamela J. Wright, Antonio G. Lazarus, Jacob Emert
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Patent number: 5798054Abstract: A lubricant and combination lubricant and refrigerant composition for use in a refrigerating machine in which a substitute freon refrigerant, which lubricant contains a polymer of a fumaric ester or a fumaric ester and a copolymerizable alkylene, and optionally contains an organic carboxylic ester or a polyalkylene glycol with a kinematic viscosity of 2 to 30 cSt. The lubricant is compatible with substitute freon refrigerants such as hydrogen-containing halogenated hydrocarbons, particularly R 134a, in a wide temperature range, has a high viscosity index, is thermally and chemically stable, and has an excellent lubricity.Type: GrantFiled: September 30, 1996Date of Patent: August 25, 1998Assignee: Exxon Chemical Patents Inc.Inventors: Takehisa Sato, Hironari Ueda, Toshiaki Kuribayashi, Satoshi Asano, Tadashi Niwa, Hiroshi Ueno, Takeaki Fujii, Sadakatsu Suzuki
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Patent number: 5759967Abstract: The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene/alpha-olefin/diene interpolymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted interpolymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such s amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful lubricating oil additives, e.g., as dispersants.Type: GrantFiled: June 16, 1997Date of Patent: June 2, 1998Assignee: Exxon Chemical Patents IncInventors: Won R. Song, Albert Rossi, Howard W. Turner, Howard C. Welborn, deceased, Robert D. Lundberg, Antonio Gutierrez, Robert A. Kleist
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Patent number: 5721200Abstract: An additive compositon comprising a graft and aminederivatized copolymer prepared from ethylene and at least one (C.sub.3 -C.sub.10) alpha-monoolefin and, optionally, a polyene selected from non-conjugated dienes and trienes comprising from about 15 to 80 mole percent of ethylene, from about 20 to 85 mole percent of said (C.sub.3 -C.sub.10) alpha-monoolefin and from about 0 to 15 mole percent of said polyene, said copolymer having a number average molecular weight ranging from about 5,500 to 50,000 and having grafted thereon at least 1.8 molecules of a carboxylic acid acylating function per molecule of said copolymer and reacting said grafted copolymer with an amino alcohol compound selected from the group consisting of a 2-Anilinoalcohol, a (2-hydroxyalkyl) pyrridine, a 4-(2-hydroxyalkyl) morpholine, a 1-(2-hydroxyalkyl) piperazine, a 1-(2-pyrrolidine and a 1-(2-hydroxyalkyl) 2-pyrrolidine.Type: GrantFiled: June 6, 1995Date of Patent: February 24, 1998Assignee: DSM Copolymer, Inc.Inventors: Shailaja Madhu Shirodkar, Cyril Andrew Migdal
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Patent number: 5707943Abstract: Mixtures of esterified carboxy-containing interpolymers and additive concentrates and lubricating oil compositions containing same. Residual acidity of the esterified interpolymers may be neutralized by reaction with an amine.Type: GrantFiled: December 16, 1996Date of Patent: January 13, 1998Assignee: The Lubrizol CorporationInventor: Michael J. Covitch
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Patent number: 5703023Abstract: Lubricants having a Brookfield viscosity at -40.degree. C. equal to or below 20,000 cP (preferably 15,000 or less) are formed from blends composed of a major amount of mineral oil in the range of about 90N to about 140N; and minor amounts of poly-.alpha.-olefin oligomer (PAO) formed from 1-alkene of 6 to 20 carbon atoms and having a kinematic viscosity of about 2 cSt at 100.degree. C.; and vinylaromatic-maleic ester polymeric viscosity index improver. Synergistic low temperature viscometric properties are exhibited by typical compositions of this type.Type: GrantFiled: November 21, 1995Date of Patent: December 30, 1997Assignee: Ethyl CorporationInventor: Sanjay Srinivasan
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Patent number: 5696064Abstract: A Koch functionalized product which is the reaction product of at least one polymer having a number average molecular weight of at least 500 and at least one ethylenic double bond per polymer chain, with carbon monoxide and a nucleophilic trapping agent. The invention includes functionalized polymer, derivatives thereof and methods of making the same.Type: GrantFiled: August 23, 1995Date of Patent: December 9, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Joseph Victor Cusumano, William Daniel Diana, Jacob Emert, Keith Raymond Gorda, William Bernard Eckstrom
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Patent number: 5681799Abstract: The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene/alpha-olefin/diene interpolymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted interpolymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful lubricating oil additives, e.g., as dispersants.Type: GrantFiled: May 3, 1995Date of Patent: October 28, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Won R. Song, Albert Rossi, Howard W. Turner, Howard C. Welborn, deceased, Robert D. Lundberg, Antonio Gutierrez, Robert A. Kleist
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Patent number: 5674819Abstract: This invention relates to compositions which are useful as additives in lubricants and fuels, and more particularly, to additives which are chlorine-free or contain only minor amounts of chlorine. More particularly, carboxylic compositions are described which are prepared by reacting a terpolymer derived from a mixture of monomers comprising ethylene, an alpha-olefin containing 3 to about 20 carbon atoms, and a non-conjugated polyene with an alpha,beta-monounsaturated dicarboxylic acid or reactive derivative thereof. These carboxylic compositions may be used in lubricating oil or fuel compositions or may be used to form carboxylic derivative compositions which are useful in lubricating oil and fuel compositions.Type: GrantFiled: November 9, 1995Date of Patent: October 7, 1997Assignee: The Lubrizol CorporationInventors: Matthew R. Sivik, David E. Ripple
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Patent number: 5616153Abstract: A novel copolymer of an unsaturated acidic reactant and an atactic vinyl terminated propene polymer (VTPP) and its use in preparation of fuel and lubricant additives is taught. The VTPP has a major amount of polymer chains containing terminal vinyl unsaturation, a number average molecular weight of at least 500, and comprises at least 70 weight per cent propene and 0 to 30 weight per cent of at least one olefin selected from the group consisting of C.sub.2 and C.sub.4 to C.sub.10 olefins. The unsaturated acidic reactant comprises at least one unsaturated C.sub.4 to C.sub.10 carboxylic or dicarboxylic acid or anhydride. An oil soluble dispersant additive of the invention useful in oleaginous compositions is prepared by contacting the atactic VTPP copolymer with at least one nucleophilic reagent selected from the group consisting of amines, alcohols, metal reactants and mixtures thereof under conditions effective to form adducts of the nucleophilic reagent with the copolymer.Type: GrantFiled: October 3, 1995Date of Patent: April 1, 1997Assignee: Ethyl CorporationInventors: Carl A. Mike, Joseph J. Valcho, Daniel Yuan-Fu Yu
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Patent number: 5585337Abstract: This invention provides hydrocarbon oil compositions comprising a major amount of a hydrocarbon oil and, as active ingredients, minor amounts of a copolymer of at least one n-(C.sub.8 -C.sub.40 -alkyl) (meth)acrylate with maleic anhydride, and at least one additive selected from the group consisting of a homopolymer or copolymer derived from an unsaturated hydrocarbon monomer, an ester and a wax anti-settling additive; additive concentrates containing the active ingredients and use of the latter in improving the cold flow properties of hydrocarbon oils.Type: GrantFiled: March 21, 1995Date of Patent: December 17, 1996Assignee: Shell Oil CompanyInventors: Janet A. Day, Marinus J. Reynhout, Henricus P. M. Tomassen