Polymer Of Alpha, Beta-olefinically Unsaturated Carboxylate Monomer (e.g., Polymethylmethacrylate, Etc.) Patents (Class 508/469)
  • Patent number: 11219639
    Abstract: According to the present invention there is provided a polymer comprising at least one antiseptic/analgesic/anti-inflammatory monomeric unit in conjunction with at least three further monomeric units, said three further monomeric units eliciting properties selected from the group consisting of: temperature activation, water solubility, mechanical strength, protein/polysaccharide bonding capacity, and combinations thereof. In particular, disclosed herein is a polymer, wherein: the water-soluble monomeric unit is a hydrophilic ethylene glycol (OEGMA) moiety; the mechanical strength-conferring monomeric unit is polylactide-co-2-hydroxy-ethyl-methyl acrylate (PLA/HEMA); the protein-reactive monomeric unit is an N-acryloxysuccinimide (NAS) moiety; and the thermosetting monomeric unit is an N-isopropyl acrylamide (NIPAAm) moiety. The anti-septic/analgesic/anti-inflammatory monomeric unit comprises a methacrylic ester derivative of salicylic acid (5-HMA or 4-HMA, or a combination thereof).
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: January 11, 2022
    Assignee: TRIMPH IP PTY LTD
    Inventors: Ali Fathi, Fariba Dehghani
  • Patent number: 11034909
    Abstract: Lubricant compositions include copolymers of monomers selected from C6-C10 alkyl methacrylate monomers, and monomers selected from C10-C18 alkyl methacrylate monomers, and a base oil or comprising a copolymer obtained by combining at least monomers selected from C6-C10 alkyl methacrylate monomers, and monomers selected from C10-C18 alkyl methacrylate monomers in a mixture and co-polymerizing the monomers. The methods for the preparation of the lubricant compositions, and lubricants uses.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: June 15, 2021
    Assignee: TOTAL MARKETING SERVICES
    Inventor: Denis Lançon
  • Patent number: 10982167
    Abstract: A viscosity index improver comprising a copolymer having a unit (a) derived from a maleimide monomer and a unit (b) derived from a macromonomer, wherein viscosity measured by the following method is 8000 mPa·s or less. Viscosity measurement method: A solution composed of 78 mass % of a Group III base oil (viscosity index: 122, kinematic viscosity at 40° C.: 19.6 mm2/s) on the American Petroleum Institute (API) classification and 22 mass % of the copolymer is measured with a viscometer (TVB-10 manufactured by Toki Sangyo Co., Ltd., rotor: SPINDLE No. M3, rotation speed: 6 rpm) at 25° C.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: April 20, 2021
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Yohei Imaizumi, Keiko Izumi, Kazunari Yasumura, Daisuke Matsui
  • Patent number: 10968413
    Abstract: A vinyl-based comb copolymer includes a polyisobutylene-based macromonomer unit and a vinyl-based monomer unit. A polyisobutylene-based macromonomer has at least 0.8 (meth)acryloyl groups represented by a specific formula at one end of a main chain per molecule, and is copolymerized with a vinyl-based monomer. A method for producing the vinyl-based comb copolymer includes copolymerizing the polyisobutylene-based macromonomer with the vinyl-based monomer. A viscosity index improver includes the comb copolymer. A lubricating oil composition includes the comb copolymer.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: April 6, 2021
    Assignee: KANEKA CORPORATION
    Inventor: Yoshihiro Ikari
  • Patent number: 10889773
    Abstract: The invention relates to a polymer composition that can be obtained by means of the free radical polymerisation of A) 95-40 wt. % of alkyl (meth)acrylate containing Ai) 20-95 wt. % of at least one alkyl (meth)acrylate with 16 to 40 C-atoms in the alcohol group, and Aii) 5-80 wt. % of at least one (meth)acrylic acid ester of a C8-C22 alcohol carrying a C6-C20 alkyl group in the 2-position relative to the hydroxyl group, in the presence of B) 5-60 wt. % ethylene copolymer. The invention also relates to a method for producing same and to the use of same as a flow improver for mineral oils and mineral oil distillates.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: January 12, 2021
    Assignee: Clariant International Ltd.
    Inventors: Michael Feustel, Matthias Krull, Bettina Siggelkow, Michael Mörscher, Ingo Greger, Sebastian Haferkamp
  • Patent number: 10808201
    Abstract: A manual transmission oil composition includes: polyisobutenyl succinimide serving as a detergent-dispersant; and comb polymethacrylate (comb PMA), which has at least one of polar and nonpolar branches connected to a main chain thereof, and serves as a viscosity modifier. Polyisobutenyl succinimide is contained in an amount of 1 wt % to 5 wt % based on a total weight of the manual transmission oil composition, W and comb PMA is contained in an amount of 4 wt % to 12 wt % based on the total weight of the manual transmission oil composition.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: October 20, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Jung Joon Oh
  • Patent number: 10683455
    Abstract: Disclosed are compounds represented by structural formula methods of producing compounds represented by structural formula, and their use in inhibiting oxidation in an oxidizable material.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: June 16, 2020
    Assignee: Polnox Corporation
    Inventors: Ashok L. Cholli, Vijayendra Kumar
  • Patent number: 10640726
    Abstract: A gun oil composition adapted specifically for the needs and requirements of modern firearms. The gun oil composition improves lubricity and gun performance under normal and extreme heat and pressure, minimizes and largely prevents the build-up of carbon and debris fouling on metal and non-metal components of the firearm, and substantially reduces cleaning time, while providing increased protection against environmental components such as dust, dirt and rust. The gun oil composition can include a base oil having at least a high viscosity index, an oil having at least a medium viscosity index with a detergent additive, a low viscosity penetrating oil, and a sulfurized ester.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: May 5, 2020
    Assignee: Mongoose Lubricants, LLC
    Inventor: Leonard A. Waldron
  • Patent number: 10472444
    Abstract: The present invention relates to a method for the preparation of a sulfur-free copolymer comprising at least one alkyl methacrylate and maleic anhydride having a number average molecular weight of 3000 to 9000 g/mol by solution polymerization in the presence of a radical initiator.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: November 12, 2019
    Assignee: Evonik Oil Additives GmbH
    Inventors: Rhishikesh Gokhale, Sandra Gebhardt, Miriam Kathrin Stihulka, Klaus Schimossek, Frank-Olaf Maehling
  • Patent number: 10443013
    Abstract: A viscosity index improver comprising a polymer which has a high viscosity index and good shear stability and which exhibits sufficient solubility in a lubricating base oil, a process for producing the same, and a lubricating oil composition containing the viscosity index improver are provided, wherein the viscosity index improver comprising a polymer satisfying the following (1) to (4): (1) weight-average molecular weight (Mw) of 200,000 or more and 600,000 or less; (2) number-average molecular weight (Mn) of 90,000 or more; (3) molecular weight distribution (Mw/Mn) of 4.0 or less; and (4) branching degree of 1.0 or more.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: October 15, 2019
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Tadayoshi Ugamura, Kazunari Yasumura, Keiko Izumi
  • Patent number: 10428292
    Abstract: Polyalkyl(meth)acrylate (PAMA) polymers comprising a certain amount of hydroxyl-functionalized alkyl (meth)acrylates can be used for improving the demulsibility performance of high VI lubricating oil compositions. The lubricating oil compositions can be those which are based on apolar base oils, especially hydraulic fluid compositions. The polymers can be comprised in certain lubricating oil compositions.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: October 1, 2019
    Assignee: Evonik Oil Additives GmbH
    Inventors: Stefan Maier, Jürgen Gebhardt, Katrin Schöller, Frank-Olaf Mähling
  • Patent number: 10144899
    Abstract: A viscosity index improver including a comb-shaped polymer is provided. For a solution having the viscosity index improver dissolved in a mineral oil and having a solid component concentration of 25 mass %, a ratio of the storage modulus (G?) to the loss modulus (G?) of the solution measured at a measuring temperature of 70° C. is 0.40 or more. For a solution (?) at 25° C. having the viscosity index improver dissolved in a mineral oil and having a solid component concentration of 25 mass % and a solution (?) resulting from subjecting the solution (?) to heating to 100° C. at a prescribed temperature rise rate and then cooling to 25° C. at a prescribed cooling rate, a ratio of the storage modulus (G?) of the solution (?) to the storage modulus (G?) of the solution (?) measured at a measuring temperature of 25° C. is 2.0 or more.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: December 4, 2018
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Yoshiyuki Suetsugu
  • Patent number: 10113133
    Abstract: A random copolymer suitable for reducing friction in lubricant compositions is disclosed. The random copolymer can include a short chain acrylate, a long chain acrylate, and a polar acrylate. The random copolymer can have a ratio of short chain acrylate to long chain acrylate of 0 to 2, and a molecular weight number of 1000 to 10000. The disclosure can include a lubricant containing a base oil and the random copolymer. A process for preparing the random copolymer and polymeric friction modifiers is also disclosed.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: October 30, 2018
    Assignee: AFTON CHEMICAL CORPORATION
    Inventors: Jiang Ding, Joseph Remias
  • Patent number: 9957342
    Abstract: The present invention relates to a process for preparing grafted polyalkyl(meth)acrylates (PAMAs) containing dispersant repeating units in the polymer backbone as well as in the grafted layer, which polymers are characterized by a low sulfur content, the products available by this process and their use as an additive to fuels, especially to middle distillates and blends thereof. The present invention further relates to a composition comprising the grafted polyalkyl(meth)acrylates prepared by the process according to the present invention and the use of said composition as an additive component to fuels, especially to middle distillates and blends thereof, and for improving the cold flow properties of fuel oil and fuel oil compositions, especially to middle distillate fuels and blends thereof.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: May 1, 2018
    Assignee: Evonik Oil Additives GmbH
    Inventors: Justin August Langston, Barbara Voltz, Frank-Olaf Maehling, Michael G Duckworth, Brian Hess, Rhishikesh Gokhale
  • Patent number: 9914792
    Abstract: The present invention relates to copolymers which are formed from specific amounts of (a) ethylene and (b) monomer(s) selected from propylheptylacrylate and propylheptyl-methacrylate, and optionally at least one further monomer. Said copolymers are useful as oil soluble additives for cosmetic formulations and especially oil depositioning enhancers for rinse-off formulations.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: March 13, 2018
    Assignee: BASF SE
    Inventors: Helmuth Voellmar, Maria Heuken, Dawid Marczewski, Marvin Karos, Ivette Garcia Castro, Claudia Wood
  • Patent number: 9896634
    Abstract: A method for preventing or reducing engine knock or pre-ignition in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition comprising at least one ester of a non-aromatic dicarboxylic acid. The at least one ester of a non-aromatic dicarboxylic acid preferably comprises at least one adipate ester (e.g., dialkyl adipate ester). A lubricating engine oil having a composition comprising at least one ester of a non-aromatic dicarboxylic acid (e.g., adipate ester). A fuel additive composition for use in a gasoline fuel composition or a diesel fuel composition. The gasoline fuel composition or the diesel fuel composition is used in a spark ignition internal combustion engine. The fuel additive composition comprises at least one ester of a non-aromatic dicarboxylic acid (e.g., adipate ester). The lubricating oils of this disclosure are particularly advantageous as passenger vehicle engine oil products.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: February 20, 2018
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Jason Zhisheng Gao, Eric M. Bunnelle, Eugine Choi, Tomasz M. Young, Samuel C. Bainbridge
  • Patent number: 9637705
    Abstract: A gun oil composition adapted specifically for the needs and requirements of modern firearms. The gun oil composition improves lubricity and gun performance under normal and extreme heat and pressure, minimizes and largely prevents the build-up of carbon and debris fouling on metal and non-metal components of the firearm, and substantially reduces cleaning time, while providing increased protection against environmental components such as dust, dirt and rust. The gun oil composition can include a base oil having at least a high viscosity index, an oil having at least a medium viscosity index with a detergent additive, a low viscosity penetrating oil, and a sulfurized ester.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: May 2, 2017
    Assignee: Mongoose Lubricants, LLC
    Inventor: Leonard A. Waldron
  • Patent number: 9617495
    Abstract: The present invention relates to a transmission lubricant comprising at least 30% by weight of polyalkyl (meth)acrylate. The present invention further describes polyalkyl (meth)acrylates for use in lubricants and also processes for preparing them and their use. The present lubricants can be used particularly in wind turbine transmissions.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: April 11, 2017
    Assignee: Evonik Oil Additives GmbH
    Inventors: Reza Ghahary, Juergen Gebhardt, Thilo Krapfl, Michael Mueller, Thomas Schimmel, Roland Schweder, Torsten Stoehr, Christoph Wincierz
  • Patent number: 9598658
    Abstract: A lubricant composition having improved non-Newtonian viscometrics includes at least 85 weight percent of a base oil and 1 to 15 weight percent of a lubricant additive. The additive itself includes 10 to 80 weight percent of a diluent oil and 30 to 80 weight percent of a random co-polymeric viscosity index improver. The viscosity index improver is the free-radical polymerization product of at least 5 to 15 weight percent methyl methacrylate and 5 to 95 weight percent of a C8-C10 alkyl (meth)acrylate. The additive is formed using a method that includes the step of providing the diluent oil, the methyl methacrylate, the C8-C10 alkyl (meth)acrylate, and a free-radical initiator. The method also includes the steps of flowing the diluent oil into a reactor, flowing the methyl methacrylate and the C8-C10 alkyl (meth)acrylate into the reactor independently from the free-radical initiator, and flowing the free-radical initiator into the reactor.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: March 21, 2017
    Assignee: BASF SE
    Inventors: Eugene Scanlon, Kevin DeSantis, Virginie Bette, Jochen Petzoldt
  • Patent number: 9528072
    Abstract: A lubricant of (a) an oil of lubricating viscosity; (b) a block copolymer of (i) a hydrophobic first block of C1-30 alkyl (meth)acrylic units having an average total number of carbon atoms of at least 8; and (ii) a second block of (meth)acrylic units, at least some units of which comprise a heteroatom imparting polar character to the block; (c) an overbased calcium detergent; (d) a phosphorus-containing anti-wear agent that does not contribute to the metal content of the lubricant; and (e) a friction modifier suitable to reduce the static coefficient of friction at a metal-composition interface, is suitable for lubricating a farm tractor.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: December 27, 2016
    Assignee: The Lubrizol Corporation
    Inventors: William D. Abraham, Marina Baum, Haihu Qin, Ying Wang
  • Patent number: 9528070
    Abstract: The invention provides a lubricating composition containing (a) 0.1 to 15 wt % of a polymer with (i) a weight average molecular weight of 100,000 to 500,000; and (ii) a shear stability index of 10 to 60; (b) a phosphorus-containing acid, salt, or ester; (c) a dispersant; and (d) an oil of lubricating viscosity. The invention further provides a method for lubricating a mechanical device with the lubricating composition.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: December 27, 2016
    Assignee: The Lubrizol Corporation
    Inventors: Craig D. Tipton, Marina Baum, Barton J. Schober
  • Patent number: 9481849
    Abstract: The present invention describes a polymer useful as viscosity index improver comprising units derived from one or more ethylenically unsaturated ester compounds of formula (I), where R is hydrogen or methyl, R1 means a linear, branched or cyclic alkyl residue with 1-6 carbon atoms, R2 and R3 independently represent hydrogen or a group of the formula —COOR?, where R? means hydrogen or a alkyl group with 1-6 carbon atoms, units of one or more ethylenically unsaturated ester compounds of formula (II), where R is hydrogen or methyl, R4 means a 2-alkyl branched alkyl residue with 12-18 carbon atoms, R5 and R6 independently are hydrogen or a group of the formula —COOR?, where R? means hydrogen or an alkyl group with 12-18 carbon atoms, and units of one or more ethylenically unsaturated ester compounds of formula (III), where R is hydrogen or methyl, R7 means a linear alkyl residue with 12-24 carbon atoms, R8 and R9 independently are hydrogen or a group of the formula —COOR?, where R? means hydrogen or an alkyl grou
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: November 1, 2016
    Assignee: Evonik Oil Additives GmbH
    Inventors: Justin August Langston, Jen-Lung Wang, Peter Moore
  • Patent number: 9404062
    Abstract: The invention provides a lubricating oil composition comprising a lubricating base oil with a kinematic viscosity at 100° C. of 1-10 mm2/s, a % Cp; of 70 or greater and a % CA of no greater than 2 and a viscosity index improver having a weight-average molecular weight of 100,000 or greater and a ratio of weight-average molecular weight to PSSI of 1.0×104 or greater, at 0.1-50% by mass based on the total amount of the composition, and having a kinematic viscosity at 100° C. of 9.0-12.5 mm2/s and a HTHS viscosity at 150° C. of 2.8 mPa·s or greater. It further provides a lubricating oil composition comprising a lubricating base oil with a kinematic viscosity at 100° C. of 1-6 mm2/s, a % Cp of 70 or greater and a % CA of no greater than 2, a hydrocarbon-based viscosity index improver with a PSSI of no greater than 20, and a poly(meth)acrylate-based viscosity index improver.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: August 2, 2016
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Akira Yaguchi, Shigeki Matsui, Teppei Tsujimoto
  • Patent number: 9359577
    Abstract: The invention provides a lubricating composition containing (a) a polymer derived from greater than 50 wt % or more of a non-diene monomer, wherein the polymer has a weight average molecular weight of about 2000 to about 200,000, and wherein the polymer has a shear stability index of about 0 to about 25; (b) a phosphorus-containing acid, salt, or ester; (c) an extreme pressure agent, other than a phosphorus-containing acid, salt, or ester; and (d) an oil of lubricating viscosity. The invention further provides a method for lubricating a mechanical device with the lubricating composition.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: June 7, 2016
    Assignee: The Lubrizol Corporation
    Inventors: Mark R. Baker, Marina Baum, Barton J. Schober
  • Patent number: 9296974
    Abstract: The purpose of the present invention is to provide an extreme pressure agent which does not contain any metal element or the like and is highly safe but which exhibits performance equivalent to those of conventional extreme pressure agents each containing a metal element or the like when used in lubrication purposes. This extreme pressure agent comprises a copolymer (A) which comprises an alkyl acrylate (a) represented by general formula (1) and a hydroxyalkyl acrylate (b) represented by general formula (2) as the essential constituent monomers, and is characterized in that the reaction ratio of the component (a) to the component (b) (i.e., (a)/(b)) is 50/50 to 80/20 (by mole) and the copolymer (A) has a weight average molecular weight of 40,000-150,000. (In formula (1), R1 represents an alkyl group having 10-18 carbon atoms.) (In formula (2), R2 represents an alkylene group having 2-4 carbon atoms.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: March 29, 2016
    Assignee: ADEKA CORPORATION
    Inventor: Kenji Yamamoto
  • Patent number: 9233063
    Abstract: A polymeric composition is disclosed for use in personal care products. The composition is, at room temperature, a solid solution of a long-chain alcohol having ten to fifty carbon atoms and a polyalkyl[meth]acrylate polymer having some alkyl side chains pendant the ester group having ten to thirty carbon atoms and other alkyl side chains pendant the ester group having one to eight carbon atoms. The polymer can be formed by a transesterification reaction of a polyalkyl[meth]acrylate and the long chain alcohol in the presence of a catalyst.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: January 12, 2016
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Gauri Sankar Lal, Richard Joseph Goddard, Mussarat Noor
  • Patent number: 9222053
    Abstract: The present invention provides a lubricating composition comprising a base oil (A) and a hydroxyl group-added poly(meth)acrylate (B).
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: December 29, 2015
    Assignee: Shell Oil Company
    Inventor: Toru Ikai
  • Patent number: 9127229
    Abstract: A trunk piston engine lubricating oil composition comprising (a) a major amount of a base stock comprising at least 90% by weight saturated hydrocarbons; and (b) a minor amount of a base oil having a viscosity index of less than 70 and a cycloaliphatic hydrocarbon content of at least about 25 wt. % is disclosed.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: September 8, 2015
    Assignee: Cherron Oronite Technology B.V.
    Inventor: Wilhelmus P. A. Van Houten
  • Publication number: 20150148275
    Abstract: The present invention relates to a lubricating composition containing an oil of lubricating viscosity and a star polymer that has at least two inner blocks, at least one of which is in turn bonded to one or more outer blocks. The invention further relates to methods of lubricating a mechanical device with the lubricating composition.
    Type: Application
    Filed: December 16, 2014
    Publication date: May 28, 2015
    Inventors: Haihu Qin, Marina Baum, John R. Johnson
  • Patent number: 9029303
    Abstract: A lubricant oil composition according to the present invention comprises: a lubricant base oil whose kinematic viscosity at 100° C. is 1 to 20 mm2/s; and a viscosity index improver in which a ratio M1a/M2a of a total area M1a of peaks in a chemical shift between 29-31 ppm to a total area M2a of peaks in a chemical shift between 64-69 ppm based on a total area of all the peaks is not less than 10 in a spectrum obtained by 13C-NMR.
    Type: Grant
    Filed: May 31, 2010
    Date of Patent: May 12, 2015
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Shigeki Matsui, Akira Yaguchi, Reiko Kudo
  • Patent number: 9012380
    Abstract: The lubricating base oil of the invention is characterized by satisfying at least one of the following conditions (a) or (b). (a) A saturated compound content of 95% by mass or greater, and a proportion of 0.1-10% by mass of cyclic saturated compounds among the saturated compounds. (b) The condition represented by the following formula (1). 1.435?n20?0.002×kv100?1.450??(1) wherein n20 represents the refractive index of the lubricating base oil at 20° C., and kv100 represents the kinematic viscosity (mm2/s) of the lubricating base oil at 100° C.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: April 21, 2015
    Assignees: Nippon Oil Corporation, Petroleum Energy Center
    Inventors: Takashi Sano, Hitoshi Komatsubara, Hisayuki Wada, Osamu Kurosawa, Masaaki Itou, Shigeki Matsui, Masato Takahashi, Kai Fu, Shinichi Shirahama, Izuru Sugiura, Masahiro Taguchi, Shozaburo Konishi
  • Patent number: 8999904
    Abstract: The lubricating oil composition of the invention comprises a lubricating base oil with a kinematic viscosity at 100° C. of 1-20 mm2/s, and a viscosity index improver having a ratio M1/M2 of 0.20 or greater, between the total area of the peaks between chemical shifts of 36-38 ppm M1 and the total area of the peaks between chemical shifts of 64-66 ppm M2, with respect to the total area of all of the peaks, in the spectrum obtained by 13C-NMR. The lubricating oil composition of the invention has excellent effects, with a sufficiently high HTHS viscosity at 150° C., and a sufficiently low kinematic viscosity at 40° C., a sufficiently low kinematic viscosity at 100° C. and a sufficiently low HTHS viscosity at 100° C.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: April 7, 2015
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Shigeki Matsui, Akira Yaguchi, Reiko Kudo, Hiroya Miyamoto, Teppei Tsujimoto
  • Patent number: 8980803
    Abstract: Provided for are lubricant base stocks with improved filterability. The lubricant base stock includes a bright stock or a heavy neutral and an effective amount of a pour point depressant. The filterability of the base stock as measured by the Membrane Filtration Method is less than or equal to 400 seconds. Also provided for are lubricating oils with improved filterability and methods of improving the filterability of lubricant base stocks.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 17, 2015
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Kristen Amanda Lyon, Charles L. Baker, Jr., Serge Riffard
  • Patent number: 8979951
    Abstract: The invention provides terpolymers of ethylene, at least one ethylenically unsaturated ester and propene, which a) contain from 12.0 to 16.0 mol % of structural units derived from at least one ethylenically unsaturated ester, b) contain from 1.0 to 4.0 methyl groups derived from propene per 100 aliphatic carbon atoms, and c) have fewer than 6.5 methyl groups stemming from chain ends per 100 CH2 groups. and also their use as cold additives for middle distillates.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: March 17, 2015
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Bettina Siggelkow, Werner Reimann, Matthias Krull, Markus Kupetz
  • Patent number: 8968428
    Abstract: The invention provides additive mixtures comprising A) at least one terpolymer of ethylene, propene and at least one ethylenically unsaturated ester, which i) contains from 6.0 to 12.0 mol % of structural units derived from at least one ethylenically unsaturated ester having a C1- to C3-alkyl radical, ii) contains from 0.5 to 4.0 methyl groups derived from propene per 100 aliphatic carbon atoms, iii) has fewer than 8.0 methyl groups stemming from chain ends per 100 CH2 groups, and B) from 0.5 to 20 parts by weight, based on A), of at least one further component which is effective as a cold additive for mineral oils and is selected from B1) copolymers of ethylene and ethylenically unsaturated compounds whose content of ethylenically unsaturated compounds is at least 2 mol % higher than the content of ethylenically unsaturated esters in the terpolymer defined under A), B2) comb polymers, and B3) mixtures of B1) and B2), and also their use as a cold additive for middle distillates.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: March 3, 2015
    Assignee: Clariant Produkte (Deutschland) GmbH
    Inventors: Bettina Siggelkow, Werner Reimann, Matthias Krull, Ulrike Neuhaus, Markus Kupetz, Andre Graf
  • Publication number: 20150057202
    Abstract: The present invention provides a lubricating oil composition for transmissions which is improved in fuel saving properties and has excellent metal fatigue prevention properties and heat resistance. The lubricating oil composition comprises (A) a mineral base oil having a 100° C. kinematic viscosity of 1.5 mm2/s or higher and 3.5 mm2/s or lower, a pour point of ?25° C. or lower, a viscosity index of 110 or greater, a % CN of 2 or greater and 20 or less and a % CA of 3 or less, the lubricating oil composition having a 100° C. kinematic viscosity of 2.5 mm2/s or higher and 3.8 mm2/s or lower.
    Type: Application
    Filed: November 9, 2012
    Publication date: February 26, 2015
    Inventors: Hajime Nakao, Hitoshi Komatsubara
  • Publication number: 20150051131
    Abstract: Automotive transmission fluid compositions are provided having improved power transmission properties through the presence therein of certain defined additives, which increase the fuel efficiency of the vehicle during operation. The invention further provides a process for the manufacture of such transmission fluid compositions, a method of improving the energy efficiency of a transmission, and an additive concentrate for a transmission fluid.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 19, 2015
    Applicant: INFINEUM INTERNATIONAL LIMITED
    Inventors: Hahn Soo Kim, Joseph R. Noles, JR., Raymond F. Watts
  • Patent number: 8937035
    Abstract: The present invention relates to a lubricating composition containing an oil of lubricating viscosity and a star polymer that has at least two inner blocks, at least one of which is in turn bonded to one or more outer blocks. The invention further relates to methods of lubricating a mechanical device with the lubricating composition.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: January 20, 2015
    Assignee: The Lubrizol Corporation
    Inventors: Haihu Qin, Marina Baum, John R. Johnson
  • Patent number: 8906833
    Abstract: The lubricant base oil of the invention has excellent energy-conserving performance, low-temperature viscosity characteristics, and detergency. The composition contains: (A) a lubricant base oil composed of, based on the total base oil amount, 50 to 99.9 mass % of a lubricant base oil having a 100° C. kinematic viscosity of 1 to less than 5 mm2/s, and 0.1 to 50 mass % of a lubricant base oil having a 100° C. kinematic viscosity of 5 to 200 mm2/s, and (B) a viscosity index improver having average Mw of not less than 10000, and a Mw to PSSI ratio of not lower than 0.8×104, wherein the composition contains 0.1 to 50 mass % of component (B) based on the total composition amount, and has a 100° C. kinematic viscosity of 3 to 15 mm2/s and a 150° C. to 100° C. HTHS viscosity ratio of not less than 0.50.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: December 9, 2014
    Assignee: JX Nippon Oil & Energy Corporation
    Inventor: Shigeki Matsui
  • Patent number: 8846589
    Abstract: Lubricating oil compositions for transmissions comprises (A) a lubricating base oil with a kinematic viscosity at 100° C. adjusted to 1.5 to 6 mm2/s, composed of (A1) a lubricating base oil with a kinematic viscosity at 100° C. of 1.5 mm2/s or higher and lower than 7 mm2/s or (A1) the lubricating oil and (A2) a lubricating base oil with a kinematic viscosity at 100° C. of 7 to 50 mm2/s, blended with (B) a poly(meth)acrylate-based additive, so that the composition has a kinematic viscosity at 100° C. of 3 to 8 mm2/s and a viscosity index of 95 to 200, (A) and (B) fulfill a specific requirement. The compositions achieve long fatigue life though having low viscosity.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: September 30, 2014
    Assignee: Nippon Oil Corporation
    Inventors: Toru Matsuoka, Masaaki Itou
  • Patent number: 8846587
    Abstract: This invention relates to a composition, comprising: an unsaturated functionalized monomer of from about 5 to about 30 carbon atoms, which is: (a) polymerized to form a functionalized polymer; (b) copolymerized with a comonomer to form a functionalized copolymer; or (c) reacted with an enophilic reagent to form a polyfunctionalized monomer. The polyfunctionalized monomer may be polymerized to form a polyfunctionalized polymer which may be further reacted with one or more additional reagents. The invention relates to lubricants, functional fluids, fuels, dispersants, detergents and polymeric resins.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: September 30, 2014
    Assignee: Elevance Renewable Sciences, Inc.
    Inventors: Stephen Augustine DiBiase, Syed Q. A. Rizvi, Georgeta Hategan
  • Publication number: 20140274835
    Abstract: 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: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Inventors: Raymond F. Watts, Joe R. Noles, JR., Michael Müller, Torsten Stöhr, Boris Eisenberg
  • Publication number: 20140274845
    Abstract: Provided for are lubricant base stocks with improved filterability. The lubricant base stock includes a bright stock or a heavy neutral and an effective amount of a pour point depressant. The filterability of the base stock as measured by the Membrane Filtration Method is less than or equal to 400 seconds. Also provided for are lubricating oils with improved filterability and methods of improving the filterability of lubricant base stocks.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventor: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
  • Patent number: 8835367
    Abstract: A lubricating composition contains an oil of lubricating viscosity and 0.5 to 10 percent by weight of a poly(meth)acrylate viscosity modifier polymer comprising (i) 15 weight percent to 35 weight percent monomer units of methyl(meth)acrylate, (ii) 0 to 10 weight percent monomer units of one or more C2-C6 alkyl(meth)acrylates, (iii) 50 to 85 weight percent monomer units of one or more C8-C30 alkyl(meth)acrylates, and (iv) 0 to 10 weight percent monomer units of one or more nitrogen-containing monomers. Such a lubricating composition exhibits a high viscosity index and may impart improved fuel economy to an internal combustion engine.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: September 16, 2014
    Assignee: The Lubrizol Corporation
    Inventors: Marina Baum, Haihu Qin, Brent R. Dohner
  • Patent number: 8822393
    Abstract: This invention discloses a lubricant suitable for use in percussion equipment. The lubricant comprises a base oil selected from the group consisting of Group I or Group II, blended in a synergistic amount with a gear oil package and a friction modifier. The lubricant exhibits superior wear and superior extreme pressure properties due to the synergistic effect of the gear oil package and the friction modifier. In a preferred embodiment, the gear oil package comprises a polyalkyl methacrylate polymer, and the friction modifier comprises a synthetic ester.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: September 2, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Nathan Knotts, Allan George Hee
  • Patent number: 8796194
    Abstract: The lubricating oil composition of the invention includes a lubricating base oil with a kinematic viscosity at 100° C. of 1-6 mm2/s, a % Cp of 70 or greater and a % CA of no greater than 2, and a viscosity index improver which, when added to the lubricating base oil, results in an A/B ratio of less than 3.2 and a C/B ratio of less than 1.5. A is the thickening effect on the kinematic viscosity at 100° C., B is the thickening effect on the HTHS viscosity at 150° C., and C is the thickening effect on the HTHS viscosity at 100° C.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: August 5, 2014
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Akio Mutou, Akira Yaguchi, Shigeki Matsui
  • Patent number: 8785358
    Abstract: The present invention relates to a process for producing lubricating grease by adding a polymeric structure improver in a composition liquid at 25° C. to the dispersion to a dispersion which has grease structure and comprises at least one thickener and at least one lubricating oil.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: July 22, 2014
    Assignee: Evonik Rohmax Additives GmbH
    Inventors: Matthias Fischer, Markus Scherer, Michael Müller
  • Patent number: 8785359
    Abstract: A lubricant oil composition comprising: a lubricant base oil whose kinematic viscosity at 100° C. is 1 to 6 mm2/s, % Cp is not less than 70, and % CA is not more than 2; a first viscosity index improver in which the ratio A/B of a viscosity increasing effect A in the equation (1) to a viscosity increasing effect B in the equation (2) when added to the lubricant base oil is a value of not less than 4.5, and a PSSI is not more than 30; and a second viscosity index improver in which the ratio A/B when added to the lubricant base oil is a value less than 4.5: A=X?X0??(1) B=Y?Y0??(2) wherein A represents a viscosity increasing effect of the kinematic viscosity at 100° C., B represents a viscosity increasing effect of the HTHS viscosity at 150° C., X represents a kinematic viscosity at 100° C. of a mixture of the lubricant base oil with 3% by mass of the first or second viscosity index improver, X0 represents a kinematic viscosity at 100° C. of the lubricant base oil, Y represents an HTHS viscosity at 150° C.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: July 22, 2014
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Akira Yaguchi, Shigeki Matsui, Teppei Tsujimoto
  • Patent number: 8778857
    Abstract: 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: Grant
    Filed: August 6, 2009
    Date of Patent: July 15, 2014
    Assignee: Afton Chemical Corporation
    Inventor: Peter Growcott
  • Patent number: 8759265
    Abstract: An aqueous hydraulic fluid composition comprising of one or more lubricants such as a monovalent metal salt, ammonium, or alkanolamine salt of a dicarboxylic acid, such as a C21 dicarboxylic acid is described in which the aqueous hydraulic fluid composition demonstrates increased thermal stability when exposed to elevated temperatures for a prolonged period of time while being able to tolerate the presence of 10% v/v synthetic seawater. The aqueous hydraulic fluid composition contains less than about 20% by weight (preferably none or substantially none) of an oil selected from the group consisting of mineral oils, synthetic hydrocarbon oils, and mixtures thereof.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: June 24, 2014
    Inventor: Ian D. Smith