Solid Hydrocarbon Polymer Patents (Class 508/591)
  • Patent number: 8642522
    Abstract: Disclosed in one embodiment is a hydrocarbon blend made from 0.001 to 10 wt % of at least one poly-?-olefin, by weight of the blend, the at least one poly-?-olefin having a Kv100 within the range of from 10 to 3000 cSt and a molecular weight distribution within the range of from 1.0 to 4.5; and a base stock having a Kv100 below 20.0 cSt; wherein the at least one poly-?-olefin is present in an amount sufficient to lower the pour point of the blend by at least 5° C. relative to the pour point of the base stock. In certain embodiments the blend is formed by (a) reacting a catalyst composition and a feed containing at least two sets of ?-olefins, wherein the first set of ?-olefins is selected from C4 to C12 ?-olefins and the second set of ?-olefins is selected from C14 or larger ?-olefins. The ?-olefin feed may have a number average carbon number of at least 8 carbon atoms or greater.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: February 4, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Margaret M. Wu, David J. Baillargeon, Andrew Jackson
  • Patent number: 8637438
    Abstract: A lubricating oil composition for internal combustion engines comprising a base oil containing at least one component selected from an ?-olefin oligomer having 16 to 40 carbon atoms obtained by oligomerizing ?-olefin(s) having 2 to 20 carbon atoms using a metallocene catalyst, and the hydrogenated derivative thereof; an ?-olefin oligomer having 16 to 40 carbon atoms derived from an ?-olefin dimer obtained using a metallocene catalyst, and the hydrogenated derivative thereof; and the like. The lubricating oil composition has an excellent low-temperature fluidity, a low evaporativity, and a good oxidation stability.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: January 28, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Ryou Yamada
  • Patent number: 8633142
    Abstract: The present invention provides a poly(hydroxycarboxylic acid) amide salt derivative having formula (III): [Y—CO[O-A-CO]n—Z—R+]mpXq? (III) wherein Y is hydrogen or an optionally substituted hydrocarbyl group, A is a divalent optionally substituted hydrocarbyl group, n is from 1 to 100, preferably from 1 to 10, m is from 1 to 4, q is from 1 to 4 and p is an integer such that pq=m, Z is an optionally substituted divalent bridging group which is attached to the carbonyl group through a nitrogen atom, R+ is an ammonium group and Xq? is a non-sulphur-containing anion. Furthermore, the present invention provides a lubricating composition and a fuel composition containing the poly(hydroxycarboxylic acid) amide salt derivative and the use of the poly(hydroxycarboxylic acid) amide salt derivative for decreasing the phosphorus volatility of a fluid.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: January 21, 2014
    Assignee: Shell Oil Company
    Inventors: Jan Elsa Eugenia Carty, Dennis Borisovich Kruchinin, Mark Clift Southby, Susan Jane Smith, Nigel Peter Tait
  • Patent number: 8623801
    Abstract: The present invention provides an electrically conductive polyethylene resin composition having a stable volume resistance value and in addition, a low-friction property and a wear-resistant property and a resin molding, a sliding bearing, and a sliding sheet made of the electrically conductive polyethylene resin composition. The electrically conductive polyethylene resin composition contains 100 parts by weight of ultra-high-molecular-weight polyethylene resin which cannot be injection-molded and has a weight average molecular weight of one million to four millions, 2 to 15 parts by weight of Ketjenblack, and 0.5 to 5 parts by weight of at least one powder, having an average particle size of 1 to 30 ?m, which is selected from among polytetrafluoroethylene resin powder, graphite powder, and silicone resin powder.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: January 7, 2014
    Assignee: NTN Corporation
    Inventors: Yoshio Oki, Satoru Fukuzawa, Daichi Ito
  • Publication number: 20140005089
    Abstract: A two-stroke or four-stroke marine engine lubricating oil composition comprising an oil of lubricating viscosity in a major amount and (A) additives, in respective minor amounts; and (B) an olefin copolymer viscosity modifier. Preferably, brightstock is completely or substantially absent from the composition.
    Type: Application
    Filed: December 20, 2012
    Publication date: January 2, 2014
    Inventors: Minh Doan, Terence garner, Frederick W. Girshick
  • Publication number: 20140005088
    Abstract: A two-stroke or four-stroke marine engine lubricating oil composition comprising an oil of lubricating viscosity in a major amount and (A) additives, in respective minor amounts; and (B) a viscosity modifier in the form of a polymer comprising a core and a plurality of polymeric arms extending therefrom. Preferably, brightstock is completely or substantially absent from the composition.
    Type: Application
    Filed: December 20, 2012
    Publication date: January 2, 2014
    Inventors: Minh Doan, Terence Garner, Frederick W. Girshick
  • Patent number: 8618033
    Abstract: Provided is an ethylene copolymer having 40 wt. % to 70 wt. % of units derived from ethylene and at least 30 wt. % of units derived from at least one ?-olefin having 3 to 20 carbon atoms and has the following properties: (a) a weight-average molecular weight (Mw), as measured by GPC, in the range of about 50,000 to about 200,000 g/mol; (b) a melting point (Tm) in ° C., as measured by DSC, that satisfies the relation: Tm>3.4×E?180 where E is the weight % of units derived from ethylene in the copolymer; (c) a ratio of Mw/Mn of about 1.8 to about 2.5; (d) a content of Group 4 metals of no more than 5 ppm; and (e) a ratio of wt ppm Group 4 metals/wt ppm Group 5 metals of at least 3. Also provided are methods for making an ethylene copolymer and compositions comprising an ethylene copolymer.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: December 31, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Rainer Kolb, Donna J. Crowther, Peijun Jiang
  • Patent number: 8609247
    Abstract: The present invention relates to additives for use in lubricant compositions to processes for producing the additives, and to the use of the additives in lubricants and in systems that are lubricated. More specifically, the additive includes a capped particle comprising: (i) one or more inorganic core particles; and (ii) one or more multi-block copolymers attached to the inorganic particles. The multi-block copolymer includes at least one nonpolar polymer block interposed between two polar polymer blocks. One polar polymer block is attached to the core particle, and at least a portion of the another polar polymer block is not directly attached to the core particle. When used in a lubricant to lubricate a metallic surface of a workpiece, the capped particle preferably adheres to the metallic surface of the workpiece.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: December 17, 2013
    Assignee: Productive Research LLC
    Inventor: Shimon Mizrahi
  • Publication number: 20130331307
    Abstract: The invention provides a grease composition comprising: (a) a lubricating base oil; (b) a polymeric thickener comprising a mixture of (1) a (co- or homo)polymer of propylene with a weight average molecular weight of more than 200.000 and (2) a (co- or homo)polymer of propylene with a weight average molecular weight of less than 200.000; and (c) a polar wax. The invention further provides a mechanical component having a metal surface onto which a layer of the grease composition according to the invention has been applied. The invention also relates to the use of a polar wax in the preparation of a grease composition for bearing applications, and the use of a polar wax in a grease composition for bearing applications. In addition, the present invention relates to the use of the grease composition for reducing friction in a bearing, between bearing components or within a bearing application system. The invention also relates to a method for preparing the present grease composition.
    Type: Application
    Filed: December 8, 2011
    Publication date: December 12, 2013
    Inventors: Dick Meijer, Rihard Pasaribu
  • Patent number: 8598101
    Abstract: 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: Grant
    Filed: September 21, 2012
    Date of Patent: December 3, 2013
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Michael Feustel, Matthias Krull, Christoph Kayser, Mario Loew
  • Patent number: 8598103
    Abstract: The present invention is directed to a method for improving the fuel efficiency of engine oil compositions for large low, medium and high speed engines by reducing the traction coefficient of the oil by formulating the oil using at least two base stocks of different kinematic viscosity wherein the differences in kinematic viscosity between the base stocks is at least 30 mm2/s, and additizing the composition with one or more detergents.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: December 3, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Vincent M. Carey, Kevin L. Crouthamel
  • Patent number: 8598102
    Abstract: Provided is a block copolymer having an “A” block of a functionalized hydrocarbon moiety including one or more functional end groups selected from the group consisting of: epoxides, amines, acids, acid chlorides, acid anhydrides, halogens, vinyl or vinylidene double bond, aromatic rings and thiols, and a “B” block of a functionalized polyether moiety including one or more functional end groups selected from the group consisting: epoxides, amines, acids, acid chlorides, acid anhydrides, halogens, vinyl or vinylidene double bond, aromatic rings and thiols. The end group of the polyether moiety is different than the end group of the hydrocarbon moiety, and the hydrocarbon moiety and the polyether moiety are copolymerizable therewith. Preferably, the hydrocarbon moiety is a poly-?-olefin and the polyether moiety is a polyalkylene glycol.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: December 3, 2013
    Assignee: ExxonMobil Research and Egineering Company
    Inventors: Abhimanyu Onkar Patil, Margaret May-Som Wu, Satish Bodige, Man Kit Ng
  • Publication number: 20130303418
    Abstract: A lubricating composition comprises a base oil and between 10 ppm and 1000 ppm by mass of a viscosity modifier, the viscosity modifier comprising a polymer having a number average molecular weight greater than 500,000. The polymer's side-chains may be branched or unbranched. The polymer is preferably selected from the group consisting of polyolefin, poly alpha olefin, poly internal olefin, ethylene-propylene copolymers, ethylene-propylene-diene copolymers, ethylene-propylene-acrylate copolymers, ethylene-propylene-methacrylate copolymers, ethylene-propylene-aromatic copolymers, ethylene-propylene-diene-acrylate copolymers, ethylene-propylene-diene-methacrylate copolymers, and combinations thereof.
    Type: Application
    Filed: May 7, 2013
    Publication date: November 14, 2013
    Applicant: Shell Oil Company
    Inventors: Allison Elaine FALENDER, Robert Jude Sutherland, Zhou Xu
  • Patent number: 8580719
    Abstract: A lubricating oil composition for internal combustion engines which comprises a base oil comprising mineral oils and/or synthetic oils and polyisobutylene having a weight-average molecular weight of 500,000 or higher. Consumption of the engine oil can be decreased by using the above composition. In particular, consumption of the engine oil can be decreased even when the above composition is used as the engine oil of the energy saving type using a base oil having a low viscosity.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: November 12, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Motoharu Ishikawa, Masahiko Kido
  • Publication number: 20130296206
    Abstract: A lubricant comprises oleophilic thickening fibers dispersed in at least one of an oil and/or and a lubricating fluid. The oleophilic thickening fibers have a diameter between 50 nm and 10 microns and a length that is at least 5 times the diameter.
    Type: Application
    Filed: October 24, 2011
    Publication date: November 7, 2013
    Inventors: Jeroen Bongaerts, Alexander de Vries, Piet Lugt, Dick Meijer, Dries Muller, Rihard Pasaribu, Alejandro Sanz, Richard Schaake
  • Patent number: 8575078
    Abstract: The present invention relates to a coating for elastomeric linear profiles, where the coating comprises solid lubricant embedded into a polymeric matrix. It also relates to a wiper blade for windscreen wipers, comprising this type of coating, and also to a process for the production of an elastomeric linear profile coated according to the invention. The polymeric matrix with embedded solid lubricant is obtained by polymerizing, in the absence of polymeric binders, a mixture comprising the solid lubricant and low-molecular-weight crosslinking agent. In one embodiment, the matrix is obtained from the thermal polymerization of the low-molecular-weight crosslinking agent hexamethoxymethylmelamine. Examples of solid lubricants are graphite and HDPE.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: November 5, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Vincent Duval, Yves Verburgh, Valerie Carlier
  • Publication number: 20130281340
    Abstract: Lubricant compositions, as well as processes for their formulation, are provided. The lubricant compositions comprise an oil basestock and one or more blocky ethylene propylene copolymers. The copolymers are preferably prepared using metallocene catalyst systems but without using a chain shuttling agent.
    Type: Application
    Filed: March 12, 2013
    Publication date: October 24, 2013
    Applicant: ExxonMobil Chemical Patents Inc.
    Inventor: Rainer Kolb
  • Publication number: 20130281339
    Abstract: Provided are ethylene-based copolymers, methods of preparing the same, lubricating oil compositions including the same, methods for preparing such lubricating oil compositions, and end uses for such ethylene-based copolymers and lubricating oil compositions. The ethylene-based copolymers may include from about 35 wt. % to about 60 wt. % of units derived from ethylene and at least 1.0 wt. % of one or more alpha-olefin comonomers having 3 to 20 carbon atoms. The ethylene-based copolymers are substantially amorphous and have a polydispersity index of about 2.8 or less.
    Type: Application
    Filed: October 12, 2012
    Publication date: October 24, 2013
    Applicant: ExxonMobil Chemical Company
    Inventors: Rainer KOLB, Sudhin DATTA, Liehpao O. FARNG, Vera MINAK-BERNERO, Eric B. SIROTA, Thomas T. SUN, Mun Fu TSE
  • Publication number: 20130274159
    Abstract: A dry lubricant comprises at least 50 wt % of fibers having a diameter between 50 nm and 10 microns and a length that is at least 5 times the diameter.
    Type: Application
    Filed: October 24, 2011
    Publication date: October 17, 2013
    Inventors: Jeroen Bongaerts, Piet Lugt, Dick Meijer, Dries Muller, Rihard Pasaribu, Alejandro Sanz, Richard Schaake, Alexander de Vries
  • Patent number: 8535514
    Abstract: A lubricant formulation and method of blending a lubricant formulation is disclosed. The lubricant formulation comprises at least two base stocks. The first base stock comprises a viscosity greater than 40 cSt, Kv100° C. and a tight molecular weight distribution as a function of viscosity. The second base stock comprises a viscosity less than 10 cSt, Kv100° C. The lubricant formulation provides favorable properties.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: September 17, 2013
    Assignee: ExxonMobil Research And Engineering Company
    Inventors: James T. Carey, Angela S. Galiano-Roth, Margaret Wu
  • Patent number: 8530712
    Abstract: This disclosure relates to a liquid syndiotactic polyalphaolefin, sPAO, comprising one or more C4 to C24 monomers, said sPAO having: a) an rr triad content of 5 to 50% as measured by 13C NMR; b) an mr triad content of 25 to 60% as measured by 13C NMR, where the mr to mm triad ratio is at least 1.0; c) a pour point of Z ° C. or less, where Z=0.0648X?51.2, where X=kinematic viscosity at 100° C. as reported in centistokes (cSt); d) a kinematic viscosity at 100° C. of 100 cSt or more (alternatively 200 cSt or more); e) a ratio of mr triads to rr triad (as determined by 13C NMR) of less than 9; f) a ratio of vinylidene to 1,2-disubstituted olefins (as determined by 1H NMR) of less than 8; g) a viscosity index of 120 or more; and h) an Mn of 40,000 or less. This disclosure further relates to processes to make and use sPAOs, including those having any combination of characteristics a) to h).
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: September 10, 2013
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: Margaret M. Wu, Steven P. Rucker, Jo Ann M. Canich
  • Patent number: 8524968
    Abstract: A process for making base oil, comprising: oligomerizing one or more olefins having a boiling point less than 82° C. in the presence of an ionic liquid catalyst to produce the base oil having a kinematic viscosity at 40° C. of 1100 mm2/s or higher. Also, a process, comprising: oligomerizing the olefins in the presence of an ionic liquid catalyst to produce the base oil having a kinematic viscosity at 40° C. of 300 mm2/s or higher and a low cloud point, wherein a wt % yield of products boiling at 482° C.+ (900° F.+) is at least 65 wt % of a total yield of products from the oligomerizing. Additionally, a process, comprising: oligomerizing the olefins in the presence of an ionic liquid catalyst to produce the base oil having a kinematic viscosity at 40° C. greater than 1100 mm2/s and a low cloud point.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: September 3, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventors: Saleh A. Elomari, Stephen J. Miller, Sven Ivar Hommeltoft
  • Patent number: 8524645
    Abstract: A lubricant composition comprising an oil of lubricating viscosity; (A) 0.05 to 1.5 percent by weight of a copolymer comprising 70 to 79 percent by weight of units derived from ethylene (“E”), having a Mw of 50,000 to 100,000, Mw/ Mn less than 3, density (“D”) of 860 to 896 kg/m3, and a melting point (“Tm”) of 15° C. to 60° C., wherein E and Tm fulfill the expression 3.44E?206?Tm; and (B) 0.05 to 1.5 percent by weight of a block copolymer comprising a first block which comprises a vinyl aromatic comonomer and a second block which comprises a diene comonomer, the diene monomer-containing block being hydrogenated; wherein the weight ratio (A):(B) is 20:80 to 60:40; exhibits good low temperature performance and durability.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: September 3, 2013
    Assignee: The Lubrizol Corporation
    Inventors: Chor Huang, Lewis Breon
  • Patent number: 8507418
    Abstract: The invention relates to compositions in the form of silicone oil emulsions which are intended to be applied to curing bladders as a mold-release agent during tire production.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: August 13, 2013
    Assignee: Bluestar Silicones France SAS
    Inventor: Stefan Breunig
  • Publication number: 20130203641
    Abstract: Provided are processes for making polymer compositions, especially those with reduced or no gel formation in lubricating oils as identified by rheological and visual gel tests and which are useful as viscosity modifiers. The processes described herein aim to achieve this objective by adjusting the concentrations of the hydrogen feed(s) in the first and/or second polymerization reaction zones, preferably such that (a) the hydrogen feed concentration in the first polymerization reaction zone is 0.0-1.0 wt %, based on total weight of feed(s) of hydrogen, ethylene monomer, ?-olefin comonomer, and solvent into the first polymerization reaction zone, and/or (b) the hydrogen feed concentration in the second polymerization reaction zone is 0.0-0.5 wt %, based on total weight of feed(s) of hydrogen, ethylene monomer, ?-olefin comonomer, and solvent into the second polymerization reaction zone.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 8, 2013
    Inventors: Rainer Kolb, Phillip T. Matsunaga, Periagaram S. Ravishankar, Lisa B. Stefaniak, Quintin Paul Ward Costin
  • Publication number: 20130203640
    Abstract: Polymer compositions for use as viscosity modifiers comprising at least two ethylene-based copolymer components are provided. The polymer composition comprises (a) a first ethylene-?-olefin copolymer and (b) a second ethylene-?-olefin copolymer. The first ethylene-?-olefin copolymer (a) has an ethylene content from about 60 to about 80 wt % and the second ethylene-?-olefin copolymer (b) has an ethylene content of less than about 60 wt %. The first ethylene-?-olefin copolymer (a) has a Melt Flow Rate Ratio (MFRR), defined as the ratio of the MFR measured at 230° C./21.6 kg and at 230° C./2.16 kg, of greater than 30 and optionally also has a Melt Flow Rate (MFR) of at least about 1.5 g/10 min, measured by ASTM D 1238 condition L (230° C./2.16 kg). The present disclosure is also directed to lubricant compositions comprising a lubricating basestock and a polymer composition of the present disclosure and is further directed to reducing gelation in the lubricant compositions.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 8, 2013
    Applicants: Chevron Oronite Company LLC, ExxonMobil Chemical Patents Inc.
    Inventors: Phillip T. Matsunaga, Kirk A. Nass, Pritesh A. Patel, Rainer Kolb, Sudhin Datta
  • Patent number: 8501675
    Abstract: A lubricant formulation and method of blending a lubricant formulation is disclosed. The lubricant formulation comprises at least two base stocks. The first base stock comprises a viscosity greater than 135 cSt, Kv100° C. and a tight molecular weight distribution as a function of viscosity. The second base stock comprises a viscosity less than 60 cSt, Kv100° C. The formulation also comprises a polyol ester. The lubricant formulation provides favorable properties.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: August 6, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Heather M. Haigh, James T. Carey, Angela S. Galiano-Roth, Margaret M. Wu, Andrea B. Wardlow
  • Patent number: 8492322
    Abstract: A lubricant composition comprises a base oil and a viscosity modifier including an ethylene/?-olefin interpolymer. The ethylene/?-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block copolymer has a number of unique characteristics disclosed here. Such block copolymers offer the possibility of improved low temperature performance and flexibility in formulating motor oil, gear lubricants and greases, etc.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: July 23, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Colin Li Pi Shan, Roger L. Kuhlman, Gary L. Rath, Pamela J. Kenny, Morgan M. Hughes, Rongjuan Cong
  • Publication number: 20130184191
    Abstract: A novel lubricant composition is disclosed. In one embodiment the lubricant composition comprises in admixture: a first base stock component comprising one or more base stocks each having a viscosity of at least 40 cSt, Kv100° C. and a molecular weight distribution (MWD) as a function of viscosity at least 10 percent less than algorithm: MWD=0.2223+1.0232*log (Kv at 100° C. in cSt); and a second base stock component comprising at least one Poly-Alpha-Olefin (PAO) base stock and at least one Group III base stock, each having a viscosity less than 110 cSt, Kv100° C.
    Type: Application
    Filed: March 11, 2013
    Publication date: July 18, 2013
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventor: ExxonMobil Research and Engineering Company
  • Patent number: 8486878
    Abstract: A lubricant composition comprises a base oil and a viscosity modifier including an ethylene/?-olefin interpolymer. The ethylene/?-olefin interpolymer has at least a hard segment and at least a soft segment. The soft segment contains a higher amount of comonomers than the hard segment. The hard segment has low crystallinity. The copolymer has a number of unique characteristics disclosed herein. Such copolymers offer the possibility of improved low temperature performance and flexibility in formulating motor oil, gear lubricants and greases, etc.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: July 16, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Colin Li Pi Shan, Roger L. Kuhlman, Gary L. Rath, Pamela J. Kenny, Morgan M. Hughes, Rongjuan Cong
  • Publication number: 20130178403
    Abstract: A universal synthetic water displacement multi-purpose penetrating lubricant with the capacity to protect metal surfaces against corrosion, with galvanic and electrolysis protection, while providing excellent lubrication properties. The lubricant actively penetrates the crystalline surface of the metal while exhibiting extreme pressure lubrication, non-migrating with lasting protection. The lubricant exhibits dielectric strength of over 14,000 volts, at the same time cleaning electrical contacts while reducing resistance and associated heat. A preferred embodiment comprises polymerized alpha-olefms, K-1 kerosene, and at least one base oil selected from the base oil group consisting of Hydroisomerized high base oils and HT severe hydro-cracked base oils. Various combinations of other optional ingredients are also disclosed.
    Type: Application
    Filed: September 20, 2011
    Publication date: July 11, 2013
    Applicant: BESTLINE INTERNATIONAL RESEARCH, INC.
    Inventor: Ronald J. Sloan
  • Patent number: 8481464
    Abstract: The present invention relates to a spacer member reducing fretting wear and fastened structures using a spacer member, furthermore, the present invention provides a spacer member 1 sandwiched between contact surfaces 7 of contact materials 6 subject to abrasion and suffering from wear and provided with sliding and vibrating surfaces 2, 2 characterized in that the sliding or vibrating surfaces (2, 2) of the spacer member 1 have a higher hardness than at least one of the contact surfaces (7) of the first contact material (6) and the second contact material (6?) and the sliding or vibrating surfaces (2, 2) of the spacer member 1 have a lower coefficient of friction and a higher flatness than at least one of the contact surfaces (7) of the first contact material (6) and the second contact material (6?), whereby the sliding or vibrating surfaces 2, 2 of the spacer member 1 do not easily wear down the contact surfaces 7 of the contact materials 6.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: July 9, 2013
    Assignee: Imott Corporation
    Inventors: Naoto Ootake, Makoto Matsuo
  • Patent number: 8482420
    Abstract: A method of monitoring oil in a vehicle having an internal combustion engine is provided. The method includes measuring a sump temperature of the engine and measuring a power output of the engine. Oil consumption is calculated as a function of the measured sump temperature and the measured power output. Remaining oil life is calculated as a function of the calculated consumption. The method may include alerting a receiver of the calculated remaining oil life.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: July 9, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Daniel H. Blossfeld, Matthew J. Snider
  • Patent number: 8476210
    Abstract: A composition of compressor working fluid including a dissolved gas or a condensate from a dissolved gas, and a base fluid including at least a first base stock and a second base stock, wherein the viscosity difference between the first base stock and the second base stock is greater than 125 cSt, Kv 100° C. A composition of compressor working fluid including a dissolved gas or a condensate from a dissolved gas, and a base fluid including a first base stock and a second base stock, wherein the viscosity difference between the first and second base stock is greater than 40 cSt, Kv 100° C., and wherein the first and second base stocks are each polyglycol or polyalkylene glycol base derived from propylene oxide. A method of achieving favorable viscosity index for a compressor working fluid. A method of reducing dilution from gas being compressed for a compressor working fluid.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: July 2, 2013
    Assignees: BVA, Inc.
    Inventor: Glenn Short
  • Publication number: 20130165362
    Abstract: Polymers suitable for use as a viscosity index improver for lubricating oil compositions including linear polymers characterized by the formula: D?-PA-D?; and star polymers characterized by the formula: (D?-PA-D?)n-X; wherein D? represents an “outer” block derived from diene having a number average molecular weight of from about 10,000 to about 120,000 daltons; PA represents a block derived from monoalkenyl arene having a number average molecular weight of from about 10,000 to about 50,000 daltons; D? represents an inner random derived from diene having a number average molecular weight of from about 5,000 to about 60,000 daltons; n represents the average number of arms per star polymer formed by the reaction of 2 or more moles of a polyalkenyl coupling agent per mole of arms; and X represents a nucleus of a polyalkenyl coupling agent.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 27, 2013
    Inventors: Sonia Oberoi, Stuart Briggs
  • Patent number: 8470752
    Abstract: Lubricant compositions for use in automotive engine oils comprising a combination of a specific base stock or mixture of base stocks and a friction reducing additive to improve fuel economy and fuel economy longevity of the automotive engine oil. The friction reducing additive is a specific partial polyol ester and may also include a specific saturated primary amide.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: June 25, 2013
    Assignees: Croda Americas LLC, Croda International PLC
    Inventors: Christopher Donaghy, Robert Bruce Calvert, Andrew Simon Oldfield
  • Patent number: 8455416
    Abstract: The present invention relates to a low viscosity lubricant process, product, and composition characterized by low Noack volatility, low pour point, useful low temperature viscometrics, and high viscosity index and more particularly concerns a PAO composition having a kinetic viscosity at 100° C. in the range of about 4 cSt.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: June 4, 2013
    Assignee: Ineos USA LLC
    Inventors: Vahid Bagheri, Lionel D. Moore, Peter M. Digiacinto, Michel Sanchezrivas
  • Patent number: 8455415
    Abstract: A poly(alpha-olefin/alkylene glycol) copolymer of the following formula: wherein R3, R4, Ra, and Rb are, independently, any of H, a C1 to C18 normal or branched alkyl radical, or a C1 to C18 aromatic radical or aromatic-containing alkyl radicals; wherein n and m, are, independently, integers from 1 to 1000; and wherein x is an integer from 0 to 10. There is also a process for making the copolymer. There is also a lubricant formulation having the copolymer.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: June 4, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Abhimanyu Onkar Patil, Satish Bodige, Suzzy Chen Hsi Ho, Thomas Francis Degnan, David Joseph Baillargeon, Margaret May-Som Wu
  • Publication number: 20130130958
    Abstract: A lubricating composition comprises a base oil and between 10 ppm and 1000 ppm of a viscosity modifier, the viscosity modifier comprising a polymer having a number average molecular weight greater than 500,000. The polymer is preferably selected from the group consisting of ethylene-propylene copolymers, ethylene-propylene-diene copolymers, ethylene-propylene-acrylate copolymers, ethylene-propylene-methacrylate copolymers, ethylene-propylene-aromatic copolymers, ethylene-propylene-diene-acrylate copolymers, ethylene-propylene-diene-methacrylate copolymers, and combinations thereof.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 23, 2013
    Applicant: SHELL OIL COMPANY
    Inventor: SHELL OIL COMPANY
  • Patent number: 8426659
    Abstract: This invention relates to higher olefin vinyl terminated polymers having an Mn of at least 200 g/mol (measured by 1H NMR) including of one or more C4 to C40 higher olefin derived units, where the higher olefin vinyl terminated polymer comprises substantially no propylene derived units; and wherein the higher olefin polymer has at least 5% allyl chain ends and processes for the production thereof. These vinyl terminated higher olefin polymers may optionally include ethylene derived units.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: April 23, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, Charles J. Ruff, Donna J. Crowther, John R. Hagadorn, Patrick Brant
  • Patent number: 8420583
    Abstract: A lubricating oil composition and methods of operating an internal combustion engine to provide improved engine operation. The lubricating composition includes a major amount of oil of lubricating viscosity; and a minor amount of at least one highly grafted, multi-functional olefin copolymer made by reacting an acylating agent with an olefin copolymer having a number average molecular weight greater than about 10,000 up to about 50,000 in the presence of a free radical initiator to provide an acylated olefin copolymer having a degree of grafting (DOG) of the acylating agent on the olefin copolymer of from above about 1.5 to about 3.0 wt. %. The acylated olefin copolymer is then reacted with an amine to provide the highly grafted, multi-functional olefin copolymer.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: April 16, 2013
    Assignee: Afton Chemical Corporation
    Inventors: Philip J. Boegner, Charles A. Passut
  • Publication number: 20130090278
    Abstract: This invention is directed to passenger car engine oil compositions comprising in admixture 60 wt % to 90 wt % of a first base oil component, based on the total weight of the composition, the first base oil component consisting of a polyalphaolefin base stock or combination of polyalphaolefin base stocks, each having a kinematic viscosity at 100° C. of from 3.2 cSt to 3.8 cSt; 0.1 wt % to 20 wt % of a second base oil component, based on the total weight of the composition, the second base oil component consisting of a Group II, Group III or Group V base stock, or any combination thereof; and at least 0.75 wt % viscosity index improver, on a solid polymer basis.
    Type: Application
    Filed: September 12, 2012
    Publication date: April 11, 2013
    Applicants: EXXONMOBIL CHEMICAL PATENTS INC., EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Richard Wayne Martin, Douglas Edward Deckman, Kevin John Kelly, Craig Janzen Emett, Mark Paul Hagemeister, Bruce Allan Harrington, Chon-Yie Lin, Phillip Thomas Matsunaga, Charles James Ruff, Kevin Bruce Stavens
  • Patent number: 8415284
    Abstract: A lubricating oil composition and methods of operating an internal combustion engine to provide improved engine operation. The lubricating composition includes a major amount of oil of lubricating viscosity and a minor amount of at least one olefin copolymer having a number average molecular weight greater than about 10,000 up to about 300,000. The olefin copolymer is grafted with (A) a vinyl-substituted aromatic compound, and (B) a compound selected from the group consisting of a C5-C30 olefin, a polyalkylene compound, and mixtures thereof. A mole ratio of A/B in the reaction mixture ranges from about 0.25:1 to about 5:1. The lubricating composition optionally includes a minor amount of at least one non-grafted olefin copolymer, styrene-isoprene copolymer, methacrylate copolymer, or styrene butadiene copolymer have number average molecular weight greater than about 50,000 up to about 300,000.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: April 9, 2013
    Assignee: Afton Chemical Corporation
    Inventor: Akhilesh Duggal
  • Patent number: 8415280
    Abstract: A penetrating lubricant with the capacity to offer a both penetration into rust and corrosion. Further, this lubricant actively penetrates the crystalline surface of the metal while exhibiting extreme pressure lubrication, non-migrating with lasting protection. Further lubricant exhibits dielectric strength of over 8000 volts, at the same time cleaning electrical contacts, thereby reducing resistance and associated heat. The preferred embodiment may contain alpha-olefins, low-odor aromatic solvents, base oils, and high flash mineral spirits.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: April 9, 2013
    Assignee: BestLine International Research, Inc.
    Inventor: Ronald J. Sloan
  • Publication number: 20130085092
    Abstract: A method is provided to determine the predisposition of a polymer to form network or gel in a lubricating oil which comprises obtaining a composition of a polymer in a diluent, measuring the shear stress as a function of shear rate, determining the yield stress using the Herschel-Bulkley equation and assessing the yield stress. A method is also provided to determine the predisposition of a polymer to form network or gel in a lubricating oil which comprises obtaining a composition of a polymer in a diluent, determining at least one of (i) the storage modulus G? and loss modulus G? of the composition by subjecting the composition to sinusoidal (oscillating) stress or strain of certain amplitude and frequency, (ii) the phase lag (angle) of the response strain or stress ?, or (iii) the tangent (tan) ?, and (c) assessing at least one of the G?, G?, ?, or tan(?) determined.
    Type: Application
    Filed: September 6, 2012
    Publication date: April 4, 2013
    Applicants: Chevron Oronite Company LLC, ExxonMobil Chemical Patents Inc.
    Inventors: Rainer Kolb, Sudhin Datta, Pritesh A. Patel, Kirk A. Nass
  • Patent number: 8410035
    Abstract: A lubricating oil composition for a power transmission system, which is excellent in both of low-temperature viscosity property and shear stability, is provided. The viscosity modifier of a lubricating oil for a power transmission system according to the present invention comprises an ethylene/?-olefin copolymer (B) having the properties: (B1) an ethylene content in the range of 70 to 85% by mol, (B2) an intrinsic viscosity [?] in the range of 0.2 to 1.0 dl/g, (B3) Mw/Mn not more than 2.4, and (B4) a melting point, as measured by DSC, not higher than 60° C., or no melting point observed.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: April 2, 2013
    Assignees: Mitsui Chemicals, Inc., The Lubrizol Corporation
    Inventors: Ryousuke Kaneshige, Akihiro Matsuda, Satoshi Ikeda, Keiji Okada, Masaaki Kawasaki
  • Patent number: 8399390
    Abstract: The invention relates to industrial lubricant and grease compositions containing high viscosity index polyalphaolefins (HVI-PAO). The use of HVI-PAOs in industrial oils and greases application provides advantages in improved shear stability, wear property, foam property, energy efficiency and improved overall performance.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: March 19, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Margaret May-Som Wu, Andrew Jackson, Walter David Vann, James Thomas Carey, Norman Yang, Suzzy Chen Hsi Ho
  • Patent number: 8394749
    Abstract: The present invention provides a pressure-medium oil comprising at least one of a hydrocarbon compound and an ether compound and having the following properties (1) to (4): (1) a kinematic viscosity as measured at 40° C. of 2 to 30 mm2/s; (2) a viscosity index of 110 or higher; (3) a density as measured at 15° C. of 0.86 g/cm3 or less; and (4) a pour point of ?50° C. or lower. The pressure-medium oil does not solidify under an ultra-high pressure, for example, 1.5 GPa or higher, and has a low pour point and excellent compatibility with test samples and with the material of the apparatus employed in the test.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: March 12, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Shoji Aoyama, Keizo Murata, Hiroshi Nagakawa, Tahei Okada
  • Patent number: 8389452
    Abstract: Disclosed are rheology modifiers comprising compositionally disperse polymeric compositions and/or crystallinity disperse polymeric compositions that may be useful in modifying the rheological properties of lubrication fluids, and methods for making such compositions. The compositionally disperse polymeric composition are formed from at least two discrete compositions of ethylene copolymers. The crystallinity disperse polymeric composition are formed from ethylene copolymers having at least two discrete values of residual crystallinity.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: March 5, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Jo Ann Marie Canich, Liehpao Oscar Farng, Rainer Kolb, Vera Minak-Bernero, Eric B. Sirota, Thomas Tungshi Sun, Mun Fu Tse, Manika Varma-Nair
  • Patent number: 8389780
    Abstract: The invention is directed to polyalphaolefins (PAOs) and processes for forming PAOs. In one embodiment, the invention is to a process for forming a PAO comprising polymerizing C8-C12 ?-olefin monomers in the presence of hydrogen, a C8-C12 saturated hydrocarbon, e.g., a C8-C12 saturated straight-chain hydrocarbon, and a catalyst system in a reaction vessel, wherein the C8-C12 saturated straight-chain hydrocarbon has about the same number of carbon atoms as the C8-C12 ?-olefin monomers. The C8-C12 saturated straight-chain hydrocarbon optionally is derived from a crude PAO product formed by the process of the invention. The invention is also directed to reaction systems for performing the processes of the invention, to processes for controlling PAO viscosity based on residence time, and to the removal of spent catalyst using a solid adsorbent particles.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: March 5, 2013
    Assignee: Chemtura Corporation
    Inventors: Daniel C. Knowles, Jesus R. Fabian, Vilan Kosover, Susan Ferrarotti, E. Brian Fox, Frank DeBlase