Solid Hydrocarbon Polymer Patents (Class 508/591)
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Patent number: 8642522Abstract: 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: GrantFiled: June 5, 2008Date of Patent: February 4, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Margaret M. Wu, David J. Baillargeon, Andrew Jackson
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Patent number: 8637438Abstract: 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: GrantFiled: November 14, 2006Date of Patent: January 28, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventor: Ryou Yamada
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Patent number: 8633142Abstract: 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: GrantFiled: July 29, 2009Date of Patent: January 21, 2014Assignee: Shell Oil CompanyInventors: Jan Elsa Eugenia Carty, Dennis Borisovich Kruchinin, Mark Clift Southby, Susan Jane Smith, Nigel Peter Tait
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Patent number: 8623801Abstract: 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: GrantFiled: September 29, 2009Date of Patent: January 7, 2014Assignee: NTN CorporationInventors: Yoshio Oki, Satoru Fukuzawa, Daichi Ito
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Publication number: 20140005089Abstract: 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: ApplicationFiled: December 20, 2012Publication date: January 2, 2014Inventors: Minh Doan, Terence garner, Frederick W. Girshick
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Publication number: 20140005088Abstract: 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: ApplicationFiled: December 20, 2012Publication date: January 2, 2014Inventors: Minh Doan, Terence Garner, Frederick W. Girshick
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Patent number: 8618033Abstract: 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: GrantFiled: January 12, 2011Date of Patent: December 31, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Rainer Kolb, Donna J. Crowther, Peijun Jiang
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Patent number: 8609247Abstract: 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: GrantFiled: September 22, 2011Date of Patent: December 17, 2013Assignee: Productive Research LLCInventor: Shimon Mizrahi
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Publication number: 20130331307Abstract: 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: ApplicationFiled: December 8, 2011Publication date: December 12, 2013Inventors: Dick Meijer, Rihard Pasaribu
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Patent number: 8598101Abstract: 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: GrantFiled: September 21, 2012Date of Patent: December 3, 2013Assignee: Clariant Finance (BVI) LimitedInventors: Michael Feustel, Matthias Krull, Christoph Kayser, Mario Loew
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Patent number: 8598103Abstract: 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: GrantFiled: January 28, 2011Date of Patent: December 3, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Vincent M. Carey, Kevin L. Crouthamel
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Patent number: 8598102Abstract: 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: GrantFiled: December 21, 2010Date of Patent: December 3, 2013Assignee: ExxonMobil Research and Egineering CompanyInventors: Abhimanyu Onkar Patil, Margaret May-Som Wu, Satish Bodige, Man Kit Ng
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Publication number: 20130303418Abstract: 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: ApplicationFiled: May 7, 2013Publication date: November 14, 2013Applicant: Shell Oil CompanyInventors: Allison Elaine FALENDER, Robert Jude Sutherland, Zhou Xu
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Patent number: 8580719Abstract: 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: GrantFiled: March 29, 2007Date of Patent: November 12, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Motoharu Ishikawa, Masahiko Kido
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Publication number: 20130296206Abstract: 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: ApplicationFiled: October 24, 2011Publication date: November 7, 2013Inventors: Jeroen Bongaerts, Alexander de Vries, Piet Lugt, Dick Meijer, Dries Muller, Rihard Pasaribu, Alejandro Sanz, Richard Schaake
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Patent number: 8575078Abstract: 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: GrantFiled: February 4, 2009Date of Patent: November 5, 2013Assignee: Robert Bosch GmbHInventors: Vincent Duval, Yves Verburgh, Valerie Carlier
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Publication number: 20130281340Abstract: 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: ApplicationFiled: March 12, 2013Publication date: October 24, 2013Applicant: ExxonMobil Chemical Patents Inc.Inventor: Rainer Kolb
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Publication number: 20130281339Abstract: 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: ApplicationFiled: October 12, 2012Publication date: October 24, 2013Applicant: ExxonMobil Chemical CompanyInventors: Rainer KOLB, Sudhin DATTA, Liehpao O. FARNG, Vera MINAK-BERNERO, Eric B. SIROTA, Thomas T. SUN, Mun Fu TSE
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Publication number: 20130274159Abstract: 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: ApplicationFiled: October 24, 2011Publication date: October 17, 2013Inventors: Jeroen Bongaerts, Piet Lugt, Dick Meijer, Dries Muller, Rihard Pasaribu, Alejandro Sanz, Richard Schaake, Alexander de Vries
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Patent number: 8535514Abstract: 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: GrantFiled: June 4, 2007Date of Patent: September 17, 2013Assignee: ExxonMobil Research And Engineering CompanyInventors: James T. Carey, Angela S. Galiano-Roth, Margaret Wu
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Patent number: 8530712Abstract: 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: GrantFiled: December 17, 2010Date of Patent: September 10, 2013Assignee: Exxonmobil Chemical Patents Inc.Inventors: Margaret M. Wu, Steven P. Rucker, Jo Ann M. Canich
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Patent number: 8524968Abstract: 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: GrantFiled: December 13, 2010Date of Patent: September 3, 2013Assignee: Chevron U.S.A. Inc.Inventors: Saleh A. Elomari, Stephen J. Miller, Sven Ivar Hommeltoft
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Patent number: 8524645Abstract: 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: GrantFiled: July 12, 2010Date of Patent: September 3, 2013Assignee: The Lubrizol CorporationInventors: Chor Huang, Lewis Breon
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Patent number: 8507418Abstract: 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: GrantFiled: June 14, 2006Date of Patent: August 13, 2013Assignee: Bluestar Silicones France SASInventor: Stefan Breunig
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Publication number: 20130203641Abstract: 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: ApplicationFiled: February 3, 2012Publication date: August 8, 2013Inventors: Rainer Kolb, Phillip T. Matsunaga, Periagaram S. Ravishankar, Lisa B. Stefaniak, Quintin Paul Ward Costin
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Publication number: 20130203640Abstract: 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: ApplicationFiled: February 3, 2012Publication date: August 8, 2013Applicants: Chevron Oronite Company LLC, ExxonMobil Chemical Patents Inc.Inventors: Phillip T. Matsunaga, Kirk A. Nass, Pritesh A. Patel, Rainer Kolb, Sudhin Datta
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Patent number: 8501675Abstract: 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: GrantFiled: October 27, 2010Date of Patent: August 6, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Heather M. Haigh, James T. Carey, Angela S. Galiano-Roth, Margaret M. Wu, Andrea B. Wardlow
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Patent number: 8492322Abstract: 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: GrantFiled: July 11, 2008Date of Patent: July 23, 2013Assignee: Dow Global Technologies, LLCInventors: Colin Li Pi Shan, Roger L. Kuhlman, Gary L. Rath, Pamela J. Kenny, Morgan M. Hughes, Rongjuan Cong
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Publication number: 20130184191Abstract: 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: ApplicationFiled: March 11, 2013Publication date: July 18, 2013Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventor: ExxonMobil Research and Engineering Company
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Patent number: 8486878Abstract: 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: GrantFiled: July 14, 2008Date of Patent: July 16, 2013Assignee: Dow Global Technologies, LLCInventors: Colin Li Pi Shan, Roger L. Kuhlman, Gary L. Rath, Pamela J. Kenny, Morgan M. Hughes, Rongjuan Cong
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Publication number: 20130178403Abstract: 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: ApplicationFiled: September 20, 2011Publication date: July 11, 2013Applicant: BESTLINE INTERNATIONAL RESEARCH, INC.Inventor: Ronald J. Sloan
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Patent number: 8481464Abstract: 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: GrantFiled: May 23, 2008Date of Patent: July 9, 2013Assignee: Imott CorporationInventors: Naoto Ootake, Makoto Matsuo
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Patent number: 8482420Abstract: 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: GrantFiled: August 17, 2010Date of Patent: July 9, 2013Assignee: GM Global Technology Operations LLCInventors: Daniel H. Blossfeld, Matthew J. Snider
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Patent number: 8476210Abstract: 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: GrantFiled: September 9, 2009Date of Patent: July 2, 2013Assignees: BVA, Inc.Inventor: Glenn Short
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Publication number: 20130165362Abstract: 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: ApplicationFiled: December 21, 2011Publication date: June 27, 2013Inventors: Sonia Oberoi, Stuart Briggs
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Patent number: 8470752Abstract: 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: GrantFiled: May 15, 2012Date of Patent: June 25, 2013Assignees: Croda Americas LLC, Croda International PLCInventors: Christopher Donaghy, Robert Bruce Calvert, Andrew Simon Oldfield
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Patent number: 8455416Abstract: 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: GrantFiled: November 26, 2008Date of Patent: June 4, 2013Assignee: Ineos USA LLCInventors: Vahid Bagheri, Lionel D. Moore, Peter M. Digiacinto, Michel Sanchezrivas
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Patent number: 8455415Abstract: 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: GrantFiled: October 23, 2009Date of Patent: June 4, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Abhimanyu Onkar Patil, Satish Bodige, Suzzy Chen Hsi Ho, Thomas Francis Degnan, David Joseph Baillargeon, Margaret May-Som Wu
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Publication number: 20130130958Abstract: 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: ApplicationFiled: November 20, 2012Publication date: May 23, 2013Applicant: SHELL OIL COMPANYInventor: SHELL OIL COMPANY
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Patent number: 8426659Abstract: 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: GrantFiled: March 25, 2011Date of Patent: April 23, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Matthew W. Holtcamp, Charles J. Ruff, Donna J. Crowther, John R. Hagadorn, Patrick Brant
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Patent number: 8420583Abstract: 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: GrantFiled: January 24, 2008Date of Patent: April 16, 2013Assignee: Afton Chemical CorporationInventors: Philip J. Boegner, Charles A. Passut
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Publication number: 20130090278Abstract: 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: ApplicationFiled: September 12, 2012Publication date: April 11, 2013Applicants: EXXONMOBIL CHEMICAL PATENTS INC., EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: 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
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Patent number: 8415284Abstract: 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: GrantFiled: November 5, 2009Date of Patent: April 9, 2013Assignee: Afton Chemical CorporationInventor: Akhilesh Duggal
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Patent number: 8415280Abstract: 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: GrantFiled: December 2, 2011Date of Patent: April 9, 2013Assignee: BestLine International Research, Inc.Inventor: Ronald J. Sloan
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Publication number: 20130085092Abstract: 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: ApplicationFiled: September 6, 2012Publication date: April 4, 2013Applicants: Chevron Oronite Company LLC, ExxonMobil Chemical Patents Inc.Inventors: Rainer Kolb, Sudhin Datta, Pritesh A. Patel, Kirk A. Nass
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Patent number: 8410035Abstract: 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: GrantFiled: March 24, 2006Date of Patent: April 2, 2013Assignees: Mitsui Chemicals, Inc., The Lubrizol CorporationInventors: Ryousuke Kaneshige, Akihiro Matsuda, Satoshi Ikeda, Keiji Okada, Masaaki Kawasaki
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Patent number: 8399390Abstract: 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: GrantFiled: June 29, 2005Date of Patent: March 19, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Margaret May-Som Wu, Andrew Jackson, Walter David Vann, James Thomas Carey, Norman Yang, Suzzy Chen Hsi Ho
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Patent number: 8394749Abstract: 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: GrantFiled: October 30, 2006Date of Patent: March 12, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Shoji Aoyama, Keizo Murata, Hiroshi Nagakawa, Tahei Okada
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Patent number: 8389452Abstract: 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: GrantFiled: April 16, 2010Date of Patent: March 5, 2013Assignee: 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
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Patent number: 8389780Abstract: 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: GrantFiled: December 17, 2010Date of Patent: March 5, 2013Assignee: Chemtura CorporationInventors: Daniel C. Knowles, Jesus R. Fabian, Vilan Kosover, Susan Ferrarotti, E. Brian Fox, Frank DeBlase