Patents Represented by Attorney Liza Montalvo
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Patent number: 8202506Abstract: A porous, crystalline material is described having the framework structure of ZSM-12 and a composition involving the molar relationship: X2O3:(n)YO2 wherein X is a trivalent element, Y is a tetravalent element and n is less than about 45, e.g., less than about 40, wherein the average crystal size of the material is less than about 0.1 micron, which material is substantially free of impurities. The material is made by: (a) preparing a mixture capable of forming said material, said mixture comprising sources of alkali or alkaline earth metal (M), an oxide of trivalent element (X), an oxide of tetravalent element (Y), hydroxyl (OH?) ions, water, and an organic monoquaternary ammonium cation directing agent (R) and an organic diquaternary ammonium structure blocking agent (R?); (b) maintaining the mixture under sufficient conditions until crystals of said material are formed; and (c) recovering the crystalline material from step (ii). The material can be used as a hydrocarbon conversion process catalyst.Type: GrantFiled: November 17, 2009Date of Patent: June 19, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Frank Lai, Richard B. Saunders, Kathy Saunders, legal representative
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Patent number: 8048833Abstract: The present invention is directed to lubricating oils exhibiting improved resistance to oxidation and deposit/sludge formation comprising a lubricant base oil and catalytic antioxidants comprising an effective amount of a) one or more polymetal organometallic compound; and, b) effective amounts of one or more substituted N,N?-diaryl-o-phenylenediamine compounds or c) one or more hindered phenol compounds or both, to a method for improving the antioxidancy and the resistance to deposit/sludge formation of formulated lubricating oil compositions by the addition thereto of an effective amount of the aforementioned catalytic antioxidants, and to an additive concentrate containing the aforementioned catalytic antioxidants.Type: GrantFiled: August 17, 2007Date of Patent: November 1, 2011Assignee: ExxonMobil Research and Engineering CompanyInventors: Jacob J. Habeeb, Michael E. Landis, Abhimanyu O. Patil, Brandon T Weldon
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Patent number: 8030257Abstract: The present invention is directed to lubricating oils of improved antioxidancy comprising a base oil selected from the group consisting of mineral oils, synthetic oils and mixtures thereof containing an effective amount of one or more organometallic compound and/or coordination complex selected from the group consisting of (a) a metal or metal cation with more than one oxidation state, above the ground state, and two or more anions, (b) a metal or metal cation with more than one oxidation state above the ground state and one or more bidentate or tridentate ligands, (c) a metal or metal cation with more than one oxidation state above the ground slate, and one or more amines and one or more ligands, and (d) mixtures thereof, to a method for improving the antioxidancy of formulated lubricating oil compositions by the addition thereto of an effective amount of the aforementioned organometallic compound, and/or coordination complex, and to an additive concentrate containing the aforementioned organometallic compouType: GrantFiled: May 5, 2006Date of Patent: October 4, 2011Assignee: ExxonMobil Research and Engineering CompanyInventors: Jacob Joseph Habeeb, Steven Paul Rucker
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Patent number: 7977286Abstract: The invention comprises lubricating compositions and hydraulic fluids containing N,N?-diaryl-o-phenylenediamine compounds that impart good levels of oxidation inhibition in the lubricants and hydraulic fluids. The invention further comprises a method of making N,N?-diaryl-o-phenylenediamine compounds.Type: GrantFiled: April 3, 2007Date of Patent: July 12, 2011Assignee: ExxonMobil Research and Engineering CompanyInventors: Abhimanyu O. Patil, Jacob J. Habeeb, Michael E. Landis, Manuel A. Francisco, Manika Varma-Nair
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Patent number: 7902103Abstract: The invention relates to the use of particulate silicone resins in the absence of added organic solvents with particulate inorganic materials to form structured bodies and in particular molecular sieve containing structured bodies. The silicone resin is used in the form of a particulate with an average particle size of less than 700 um. Upon calcining, the silicone resin is converted to silica which acts as a binder.Type: GrantFiled: June 30, 2009Date of Patent: March 8, 2011Assignee: ExxonMobil Research and Engineering CompanyInventors: Jean W. Beeckman, Glenn R. Sweeten, Arthur W. Chester, John P. McWilliams, Dominick N. Mazzone
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Patent number: 7888298Abstract: A lubricant composition for providing friction reducing properties and VI and solvency improving properties in a lubricant system is disclosed. The lubricant composition comprises a major amount of at least one base oil and an effective amount of a high viscosity polyester additive having a kinematic viscosity at 100° C. of at least about 2,500 mm2/s.Type: GrantFiled: March 20, 2007Date of Patent: February 15, 2011Assignee: ExxonMobil Research and Engineering CompanyInventors: Marc-Andre Poirier, Kevin L. Crouthamel
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Patent number: 7816414Abstract: A synergistic demulsifier composition for the improvement of demulsification properties and method of making said composition is disclosed along with a lubricant composition containing same. The demulsifier composition consists of effective amounts of one or more demulsifier additives and one or more dispersants. The demulsifier additives consist of a first copolymer of propylene oxide and ethylene oxide and a second copolymer of propylene oxide and ethylene oxide. The dispersant can be an untreated polyalkene succinimide type dispersant, preferably an untreated polyisobutylene succinimide type dispersant.Type: GrantFiled: August 11, 2006Date of Patent: October 19, 2010Assignee: ExxonMobil Research and Engineering CompanyInventor: David G. L. Holt
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Patent number: 7651677Abstract: The present invention is directed to a method of preparing a synthetic crystalline material having an SSZ-74 crystal structure in the absence of a source of fluoride ions.Type: GrantFiled: September 12, 2008Date of Patent: January 26, 2010Assignee: ExxonMobil Research and Engineering Co.Inventors: Karl G. Strohmaier, Simon C. Weston
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Patent number: 7586007Abstract: The invention comprises lubricating compositions and hydraulic fluids containing N,N?-diaryl-p-phenylene diamine compounds that impart good levels of oxidation inhibition in the lubricants and hydraulic fluids.Type: GrantFiled: April 3, 2007Date of Patent: September 8, 2009Assignee: Exxonmobil Research and Engineering CompanyInventors: Abhimanyu O. Patil, Jacob J. Habeeb
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Patent number: 7528089Abstract: The present invention includes a microporous or mesoporous composition of matter in which the composition is formed continuously or semi-continuously in a heated reactor zone, including a rotary calciner or a rotary screw as a means for conveying the synthesis mixture, at a temperature between 200° C. and 500° C. with a residence time less than 24 hours. The reagents are solid and liquid reagents in which the solid reagents have a weight percent between 45% and 98% of the total reagents. The invention also includes a continuous or semi-continuous process for the hydrothermal manufacture of the microporous or mesoporous composition.Type: GrantFiled: October 15, 2004Date of Patent: May 5, 2009Assignee: ExxonMobil Research and Engineering CompanyInventors: Ivy D. Johnson, Kirk D. Schmitt, Steven T. Ragomo, Stephen G. Casmer
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Patent number: 7201838Abstract: Fischer-Tropsch hydrocarbon synthesis using a cobalt catalyst is used to produce waxy fuel and lubricant oil hydrocarbons from synthesis gas derived from natural gas. The waxy hydrocarbons are hydrodewaxed, with reduced conversion to lower boiling hydrocarbons, by contacting the waxy hydrocarbons, in the presence of hydrogen, with an unsulfided 10-ring, 1-dimensional zeolite catalyst that has been reduced and then treated by contacting it with the synthesized hydrocarbons containing one or more oxygenates, including indigenous oxygenate. Tail gas from the hydrodewaxing reactor can be used for the hydrocarbon synthesis.Type: GrantFiled: August 29, 2003Date of Patent: April 10, 2007Assignee: ExxonMobil Research and Engineering CompanyInventors: Adeana Richelle Bishop, William Berlin Genetti, Jack Wayne Johnson, Loren Leon Ansell, Nancy Marie Page