Polymer Of Monocarboxylic Acid Ester Of Olefinically Unsaturated Alcohol (e.g., Ethylene-vinyl Acetate Copolymer, Etc.) Patents (Class 508/475)
-
Patent number: 11680222Abstract: A lubricating composition including a polymer blend of a modified styrene-maleic anhydride copolymer and poly(meth)acrylate copolymer effective to maintain a pumpable fluid at low temperatures.Type: GrantFiled: October 22, 2021Date of Patent: June 20, 2023Assignee: Afton Chemical CorporationInventors: Kongsheng Yang, Youhong Wang, Sheng Jiang
-
Patent number: 11084968Abstract: A composition for use in various down-hole operations in oil and gas wells. The compositions can include various combinations of certain ethers and other components e.g., esters, alkoxylated alcohols, acidizing agents and hydrocarbon co-solvents. The compositions are useful in a wide variety of down-hole applications particularly well cleaning, filter cake removal and well stimulation techniques e.g., acidizing.Type: GrantFiled: April 12, 2019Date of Patent: August 10, 2021Assignee: Sasol Chemicals GmbHInventors: Nelson Akaighe, Jorge Fernandez, Christian Jones
-
Patent number: 10851323Abstract: The invention relates to aqueous polymer dispersions comprising at least one polymer obtainable by the reaction of at least one monomer M1 of the general formula H2C?CH—C(O)OR (I), wherein R is an unbranched alkyl chain comprising from 18 to 22 carbon atoms, and optionally at least one monomer M2. The invention relates moreover to a method for the preparing of such aqueous polymer dispersion and the use thereof as pour point depressant for crude oil, petroleum, and petroleum products.Type: GrantFiled: March 8, 2017Date of Patent: December 1, 2020Inventors: Judith Christine Braeuer, Kai Gumlich, Stefan Frenzel, Maria Socher, Jennifer Anne Jackson, Edward Bohres
-
Patent number: 8992793Abstract: Use of a double bond-containing hydrofluoroolefin refrigerant causes a problem that it generates hydrogen fluoride by cleavage and decomposition under influence of oxygen, leading to degradation of the materials and the refrigeration oil used in the refrigeration apparatus and causing troubles in the refrigeration apparatus. It is possible to provide a high-reliability longer-lasting refrigeration apparatus by inexpensive method, by using a double bond-containing hydrofluoroolefin refrigerant in a refrigerating cycle having a refrigerant circulation route extending from a compressor 1, via a condenser 2, an expansion mechanism 3, and an evaporator 4, back to the compressor 1 that contains an ester-based refrigeration oil containing an unsaturated fatty acid as a constituent fatty acid.Type: GrantFiled: July 28, 2010Date of Patent: March 31, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Shigehiro Sato, Kenji Takaichi
-
Patent number: 8980810Abstract: The synthesis of high performance polyvinyl ether (PVE) fluids using a Lewis acid based cationic polymerization process is disclosed. The polyvinyl ether fluid have repeating vinyl ether units of the general formula —[CH2—CH(O—R)]n, wherein R is comprised of a branched or linear alkyl group having at least 4 carbon atoms and n is a whole number representing the average number of repeating units in the polyvinyl ether. The resulting PVE fluids exhibit excellent lubricant properties, similar to poly-alpha olefins (PAOs), but the PVE fluids have the benefit of higher polarity than PAOs and thus have better solubility and dispersity of polar additives.Type: GrantFiled: December 21, 2011Date of Patent: March 17, 2015Assignee: Exxonmobil Research and Engineering CompanyInventors: Abhimanyu O. Patil, Satish Bodige, Ranjan Tripathy
-
Patent number: 8778857Abstract: A lubricant composition, additive concentrate, and method for lubricating an engine. The crankcase lubricant has less than 30 weight percent of a relatively low Noack volatility base oil and a viscosity additive. The viscosity additive has a minor effective amount of sacrificial polymeric viscosity index improver having a shear stability index (SSI) of greater than about 45 and a major amount of a viscosity index improver having an SSI of less than about 26. The minor amount of sacrificial viscosity index improver additive is effective to provide a lubricant composition having a ratio of absolute viscosity increase at 40° C. to an absolute viscosity increase at 40° C. of an RL 216 reference oil of less than about 0.8.Type: GrantFiled: August 6, 2009Date of Patent: July 15, 2014Assignee: Afton Chemical CorporationInventor: Peter Growcott
-
Patent number: 8703677Abstract: Provided herein are lubricating oil compositions for high performance engines comprising a Group III base oil and a combination of ester base stocks, wherein the combination comprises (i) an ester base stock having a kinematic viscosity at 100° C. of about 2-10 cSt, (ii) an ester base stock having a kinematic viscosity at 100° C. of about 10 to 50 cSt, and (iii) an ester base stock having a kinematic viscosity at 100° C. of greater than about 100 cSt. The lubricating oil composition can further comprise at least one additive. Methods of making and using the lubricating oil compositions are also described.Type: GrantFiled: December 21, 2007Date of Patent: April 22, 2014Assignees: Chevron Japan Ltd, Chevron Oronite Company LLCInventors: Alexander B. Boffa, Satoshi Hirano, Mark Louis Sztenderowicz, Kenji Takeoka
-
Publication number: 20130040864Abstract: The invention relates to a composition comprising at least one microgel and at least one functional additive, to processes for the preparation thereof, to uses of the compositions, and to microgel-containing polymers, rubbers, lubricants, coatings, etc. prepared therefrom.Type: ApplicationFiled: October 18, 2012Publication date: February 14, 2013Applicants: RHEIN CHEMIE RHEINAU GMBH, LANXESS DEUTSCHLAND GMBHInventors: LANXESS Deutschland GmbH, Rhein Chemie Rheinau GmbH
-
Publication number: 20130023453Abstract: The invention relates to dispersions comprising I) at least one polymer that is effective for mineral oils as a cold extrusion improver and is soluble in oil, II) at least one organic solvent that cannot be mixed with water, III) water, IV) at least one alkanolamine salt of a polycyclic carboxylic acid as a dispersing agent, and V) possibly at least one organic solvent that can be mixed with water.Type: ApplicationFiled: September 21, 2012Publication date: January 24, 2013Applicant: CLARIANT FINANCE (BVI) LIMITEDInventor: CLARIANT FINANCE (BVI) LIMITED
-
Patent number: 8188021Abstract: A lubricating oil composition formulated with a viscosity index (VI) improver composition including a combination of an ethylene ?-olefin copolymer having no greater than 66 mass % of units derived from ethylene, and a linear diblock copolymer including at least one block derived primarily from a vinyl aromatic hydrocarbon monomer, and at least one block derived primarily from diene monomer.Type: GrantFiled: February 5, 2009Date of Patent: May 29, 2012Assignee: Infineum International LimitedInventors: Chin Chu, Rolfe J. Hartley, Stuart Briggs, Jacob Emert, Jai G. Bansal
-
Patent number: 8067349Abstract: The invention relates to comb polymers which comprise, in the main chain, repeating units which are derived from polyolefin-based macromonomers, and repeating units which are derived from low molecular monomers which are selected from the group consisting of styrene monomers having 8-17 carbon atoms, alkyl(meth)acrylates having 1-10 carbon atoms in the alcohol group, vinyl esters having 1-11 carbon atoms in the acyl group, vinyl ethers having 1-10 carbon atoms in the alcohol group, (Di)alkylfumarates having 1-10 carbon atoms in the alcohol group, (Di)alkylmaleates having 1-10 carbon atoms in the alcohol group and mixtures of said monomers. The molar branching degree lies in the region between 0.1-10 mol. % and the comb polymer represents the sum of at least 80 wt.Type: GrantFiled: April 7, 2006Date of Patent: November 29, 2011Assignee: Evonik Rohmax Additives GmbHInventors: Torsten Stoehr, Boris Eisenberg, Michael Mueller
-
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
-
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
-
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
-
Patent number: 7252779Abstract: This invention is a composition that includes a transesterified fatty acid ester resulting from the reaction of a fatty acid ester, in the presence of an acid, with a hydroxyl-containing compound. The fatty acid esters of the invention are selected from those with a carbon number of eight to twenty. The hydroxyl-containing compound is an alcohol having a carbon number between one and eighteen. The resulting composition is useful as a lubricant, as a heat transfer agent, as a rheological modifier and as a corrosion/moisture inhibitor, among other uses.Type: GrantFiled: August 2, 2001Date of Patent: August 7, 2007Assignee: MJ Research Limited PartnershipInventors: Benjamin Mosier, Bryan J. Duffy
-
Patent number: 6790913Abstract: Additive compositions comprising: (i) at least one oil-soluble hydrogenated block diene polymer, comprising at least one crystallizable block, obtainable by end-to-end polymerization of a linear diene, and at least one non-crystallizable block, the non-crystallizable block being obtainable by 1,2-configuration polymerization of a linear diene, by polymerization of a branched diene, or by a mixture of such polymerizations, (ii) at least one ethylene-unsaturated ester compound; and (iii) at least one comb polymer. The additive compositions are used to improve cold flow characteristics in fuel oils. The additive compositions are particularly effective in fuel oils having a 90-20% boiling temperature range, as measured in accordance with ASTM D-86, of more than 115° C., preferably more than 120° C., more preferably more than 130° C., and most preferably more than 140° C., and a final boiling point of more than 370° C., preferably more than 380° C.Type: GrantFiled: October 7, 2002Date of Patent: September 14, 2004Assignee: Infineum International Ltd.Inventors: Vincent J. P. R. Deneker, Paul Harffey
-
Patent number: 6508848Abstract: A macromolecular cold flow improver in which a crystalline moiety and an oil-solubility enhancing moiety are linked by a functional group.Type: GrantFiled: October 15, 2001Date of Patent: January 21, 2003Assignee: Infineum International Ltd.Inventors: Dennis G. Peiffer, Panagiotis Dounis, Ramah J. Brod, George R. Chludzinski
-
Publication number: 20020193644Abstract: The invention relates to an additive for improving the cold-flow properties of crude and distillate oils, where the additive is obtainable by extraction of crude oil with supercritical gas.Type: ApplicationFiled: March 20, 2002Publication date: December 19, 2002Applicant: Clariant Internationa Ltd.Inventors: Michael Feustel, Hans-Jorg Oschmann, Utha Kentschke
-
Patent number: 6495495Abstract: The present invention relates to an additive comprising a blend of an alkyl ester copolymer, preferably an ethylene-vinyl acetate copolymer, and naphthenic oil. The invention further relates to the use of such alkyl ester copolymers for improving the flow properties of mineral oils. Most preferably, the additive is employed in manual transmission oils, axle factory fill oils, and extended drain oils, when used in conjunction with driveline oil filtration. The additive of the present invention prevents filter blockage of such a filter due to wax formation.Type: GrantFiled: August 9, 2000Date of Patent: December 17, 2002Assignee: The Lubrizol CorporationInventors: Robert W. Alger, Michael R. P. Kohut, Stephen J. Nolan
-
Patent number: 6458175Abstract: Compositions comprising a wax, a nucleator, and a wax growth arrestor improve the low temperature properties of fuel oils, especially high wax content fuels.Type: GrantFiled: December 2, 1998Date of Patent: October 1, 2002Assignee: Exxon Chemical Patents Inc.Inventors: Edwin William Lehmann, Robert Dryden Tack
-
Patent number: 6238447Abstract: Specific polymers of ethylene and different unsaturated esters provide oils with improved low temperature flow properties.Type: GrantFiled: August 4, 1998Date of Patent: May 29, 2001Assignee: Infineum USA L.P.Inventor: Iain More
-
Patent number: 6232277Abstract: There are disclosed fuel compositions containing an additive formed by admixture of (i) at least one ethylene polymer, (ii) the product of the condensation reaction between an aldehyde or ketone or reactive equivalent thereof and at least one compound comprising one or more aromatic moieties having at least one substituent of the formula XR1 and one further substituent R2 wherein X is oxygen of sulfur, R1 is hydrogen or a moiety bearing at least one hydrocarbyl group and R2 represents a hydrocarbyl group and (iii) at least one oil soluble polar nitrogen compound different from the condensation product and having one or more substituents of the formula NR13 where R13 represents a hydrocarbyl group containing 8 to 40 carbon atoms.Type: GrantFiled: May 21, 1999Date of Patent: May 15, 2001Assignee: Exxon Chemical Patents IncInventors: Christophe Ledeore, Graham Jackson, Robert Dryden Tack, Iain More
-
Patent number: 6162772Abstract: Use of a hydrogenated diene polymer with a polar group to improve cold flow improver adpack compatibility.Type: GrantFiled: August 19, 1999Date of Patent: December 19, 2000Assignee: Infineum USA L.P.Inventor: Panagiotis Dounis
-
Patent number: 6017370Abstract: The low temperature flow properties of wax-containing liquids are improved by adding a composition comprising (i) a polymer of a C.sub.8-20 alkyl ester of an ethyleneically unsaturated 1,2-diacid, and (ii) the reaction product of an alkanolamine with a C.sub.8-50 hydrocarbyl-substituted acylating agent.Type: GrantFiled: September 25, 1998Date of Patent: January 25, 2000Assignee: The Lubrizol CorporationInventors: John S. Manka, Kim L. Ziegler, Daniel R. Nelson
-
Patent number: 6010989Abstract: The invention relates to an additive for improving the flow properties of paraffin-containing mineral oils and mineral oil distillates, comprising a mixture of at least one ethylene/vinyl ester copolymer or terpolymer and at least one paraffin dispersant, wherein said mixture contains ethers and/or esters as solubilizers, wherea) the ethers conform to the formula 1R--O--R' (1)in which R is a linear or branched alkyl or alkenyl group having 4 to 30 carbon atoms, and R' is a linear or branched alkyl or alkenyl group having 1 to 30 carbon atoms,b) the esters are derived from monobasic or polybasic carboxylic acids having 4 to 30 carbon atoms (acid radical) and from monohydric or polyhydric alcohols having 1 to 30 carbon atoms (alcohol radical), orc) the ethers and/or esters are cyclic, with a ring size of from 6 to 30 carbon atoms.The invention furthermore relates to a process for improving the flow properties of mineral oils and mineral oil distillates which comprises adding the novel additive thereto.Type: GrantFiled: September 4, 1998Date of Patent: January 4, 2000Assignee: Clariant GmbHInventors: Matthias Krull, Werner Reimann
-
Patent number: 6001778Abstract: A lubricating oil for a rolling bearing in a high-speed rotating equipment comprises a nondrying vegetable oil. A rolling bearing for a high-speed rotating equipment is provided with a rolling bearing element constructed of an outer ring, an inner ring, rolling elements and a retainer to rotatably support at least a rotary shaft thereon. The retainer is made of a non-porous metal or synthetic resin and is lubricated with the lubricating oil.Type: GrantFiled: January 11, 1999Date of Patent: December 14, 1999Assignee: J. Morita Manufacturing CorporationInventors: Akira Matsui, Yoshinori Morita
-
Patent number: 5981448Abstract: A lubricating oil for a rolling bearing in a high-speed rotating equipment comprises a nondrying vegetable oil. A rolling bearing for a high-speed rotating equipment is provided with a rolling bearing element constructed of an outer ring, an inner ring, rolling elements and a retainer to rotatably support at least a rotary shaft thereon. The retainer is made of a non-porous metal or synthetic resin and is lubricated with the lubricating oil.Type: GrantFiled: September 30, 1997Date of Patent: November 9, 1999Assignee: J. Morita Manufacturing CorporationInventors: Akira Matsui, Yoshinori Morita
-
Patent number: 5652202Abstract: Copolymers and functionalised copolymers comprising ethylene units, in combination with non ethylene copolymer derivatives, give improved engine piston cleanliness when used as lubricating oil additives.Type: GrantFiled: August 15, 1995Date of Patent: July 29, 1997Assignee: Exxon Chemical Patents Inc.Inventor: David Robert Adams