Patents Represented by Attorney Robert A. Migliorini
  • Patent number: 8220563
    Abstract: Provided are drill stem assemblies with ultra-low friction coatings for subterraneous drilling operations. In one form, the coated drill stem assemblies for subterraneous rotary drilling operations include a body assembly with an exposed outer surface including a drill string coupled to a bottom hole assembly or a coiled tubing coupled to a bottom hole assembly and an ultra-low friction coating on at least a portion of the exposed outer surface of the body assembly, wherein the coefficient of friction of the ultra-low friction coating is less than or equal to 0.15. The coated drill stem assemblies disclosed herein provide for reduced friction, vibration (stick-slip and torsional), abrasion and wear during straight hole or directional drilling to allow for improved rates of penetration and enable ultra-extended reach drilling with existing top drives.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: July 17, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Narasimha-Rao Venkata Bangaru, Swarupa Soma Bangaru, legal representative, Adnan Ozekcin, Hyun-Woo Jin, Erika Ann Ooten Biediger, Jeffrey Roberts Bailey, Vishwas Gupta, Mehmet Deniz Ertas, William Curtis Elks, Jr.
  • Patent number: 8216449
    Abstract: Provided is a bubble generating process used to treat dewaxed lube base stocks to improve their filterability, hazy appearance or both. In one form, the process for improving at least one of haze appearance and filterability of a dewaxed lubricating oil basestock contained in a storage vessel includes contacting the lubricating oil basestock with gas bubbles passed through a gas distribution grid for a time sufficient to form a mixture of froth and gas treated basestock, allowing the mixture of froth and gas treated basestock to settle for a time sufficient to form a froth layer and a gas treated basestock layer, and separating the froth layer from the gas treated basestock layer, wherein a basestock having improved haze, improved filterability or both may be isolated from the gas treated basestock layer.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: July 10, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: James William Gleeson, Charles Lambert Baker, Jr.
  • Patent number: 8211341
    Abstract: The present disclosure is directed generally to synthetic organic fiber pellets, methods for making such pellets, and methods of using such pellets for making fiber reinforced polypropylene composite resins. The synthetic organic fiber pellets include at least 80 wt % of a synthetic organic fiber chosen from polyalkylene terephthalates, polyalkylene naphthalates, polyamides, polyolefins, polyacrylonitrile, and combinations thereof, and from 2 to 20 wt % of one or more waxes. The synthetic organic fiber pellets are produced using a pelleting press process.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: July 3, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Arnold Lustiger
  • Patent number: 8193133
    Abstract: Polyurea compounds are prepared by reacting amines and polyisoyanates in the presence of a liquid diluent in a high-pressure impingement mixing device under conditions sufficient to produce polyurea compounds having the consistency of a powder and in which diluent is dispersed.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: June 5, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Mark W. Baum
  • Patent number: 8183314
    Abstract: Provided are oil-in-water and water-in-oil emulsion compositions including from 0.01 to 5 wt % of a halogenated elastomer emulsifier, and optionally from to 0.5 wt % of a polyalkylene amine co-emulsifier. The emulsion compositions disclosed herein provide for increased interfacial elasticity and decreased interfacial tension at the oil-water interface to increase resistance to coalescence of dispersed water droplets of a water-in-oil emulsion or oil droplets of an oil-in-water emulsion. The emulsion compositions disclosed herein are suitable for lubricant applications due to their resistance to shear thinning.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: May 22, 2012
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Ramesh Varadaraj, Cornelius Hendrick Brons, David John Lohse
  • Patent number: 8182672
    Abstract: A process for preparing basestocks having superior low temperature properties at high viscosity index (VI). More particularly, a waxy feedstock is contacted with a first dewaxing catalyst having a refined constraint index (CI*) 2.0 or less followed by contacting with a second dewaxing catalyst having a refined constraint index greater than 2.0.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: May 22, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michel Daage, David W. Larkin, William J. Murphy
  • Patent number: 8173748
    Abstract: Provided is a heat-seal resin. The resin includes 5 wt % to 95 wt % of a first copolymer and 95 wt % to 5 wt % of a second copolymer based on the total weight of the resin. The first copolymer and the second copolymer together are 90 wt % or more of the total weight of the resin. The first copolymer includes a first monomer of an alphaolefin of 2 to 4 carbon atoms and a second monomer selected from a second monomer of an alphaolefin of 2 to 8 carbon atoms. The first monomer and the second monomer of the first copolymer are different. The first copolymer has an MFR of from 5 to 1000 g/10 minutes and a Tfm of 66° C. to 80° C. The second copolymer includes a first monomer of an alphaolefin of 2 to 4 carbon atoms and a second monomer selected from a second monomer of an alphaolefin of 2 to 8 carbon atoms. The first monomer and the second monomer of the second copolymer are different. The second copolymer has an MFR of from 0.5 to 5 g/10 minutes and a Tfm of 45° C. to 66° C.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: May 8, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: David John Lohse, Thomas Tungshi Sun, Aspy K. Mehta, Gabor Kiss, Robert Patrick Reynolds, Jr., John W. Chu, Manika Varma-Nair
  • Patent number: 8168306
    Abstract: Provided are metal structures and methods of forming such structures for use in oil, gas and/or petrochemical applications that are joined with non-ferrous weld metal compositions or a high alloy weld metal compositions. The welded metal structures include two or more segments of ferrous or non-ferrous components, and fusion welds, friction stir welds or a combination thereof bonding adjacent segments of the components together, wherein the welds comprise a non-ferrous weld metal composition or a high alloy weld metal composition that is substantially different from the metal composition of the two or more components. The resultant welded structures exhibit improvements in fatigue resistance, toughness, strain capacity, strength, stress corrosion cracking resistance, and hydrogen embrittlement resistance compared to traditional iron-based weld compositions.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: May 1, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Raghavan Ayer, Neeraj S. Thirumalai, Daniel B. Lillig, Steven J. Ford, Douglas P. Fairchild
  • Patent number: 8168724
    Abstract: The present invention relates to a method to produce highly branched polymers with a polyolefin backbone structure of ethylene and precise control of the nature of the branching. In particular, the distribution of branch length and number of branches can be more precisely controlled via the polymerization method of the present invention. The method comprises using anionic chemistry to make unsaturated polydienes with a well-defined, highly-branched structure, and then hydrogenating these polydienes to form highly branched or dendritic saturated hydrocarbon polymers. Highly branched or dendritic polyethylene, ethylene-propylene copolymer and atactic polypropylene are among the saturated hydrocarbon polymers that can be anionically synthesized via the proper selection of diene monomer type, coupling agent, and hydrogenation conditions.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: May 1, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: David J. Lohse, César Garcia-Franco, Nikos Hadjichristidis
  • Patent number: 8148472
    Abstract: This invention relates to a polymer composition comprising a blend comprising: (a) greater than 30 wt (based upon the weight of the composition) of a cyclic olefin polymer having a Tg greater than 60° C.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: April 3, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Lisa Saunders Baugh, Bryan R. Chapman, Enock Berluche
  • Patent number: 8141768
    Abstract: A method for welding and repairing cracks in metal parts is provided by subjecting the metal parts to be welded to friction stir welding and the cracks to be repaired to friction stir processing under conditions sufficient to provide a weld joint or crack repair having a preselected property or set of properties based upon the intended use of the weldment. The FSW and FSP methods are advantageous in joining and repairing metal structures and components in applications for natural gas transportation and storage, oil and gas well completion and production, and oil and gas refinery and chemical plants.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: March 27, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Steven J. Ford, Neeraj Thirumalai, James Ronald Rigby, Mark Biegler, Narasimha-Rao Venkata Bangaru, Jayoung Koo, Glen A. Vaughn, Raghavan Ayer, Douglas P. Fairchild
  • Patent number: 8143200
    Abstract: A lubricating oil formulation is disclosed inhibiting a pour point of about ?45° C. or lower and a Brookfield viscosity at ?40° C. of about 60,000 cP or less comprising a mixture of a base stock selected from the group consisting of a Group III base stock, a GTL base stock, synthetic and natural waxy hydrocarbon hydroisomerate base stock, and mixtures thereof in combination with HVI-PAO. Also disclosed is a method for reducing the pour point and enhancing the ?40° C. Brookfield viscosity performance of a lubricating oil comprising a base stock selected from the group consisting of Group III base stock, GTL base stock, synthetic and natural waxy hydrocarbon hydroisomerate base stock, and mixtures thereof by adding HVI-PAO to such base stock.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: March 27, 2012
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Nicole D. Vaughn, Jacob Joseph Habeeb
  • Patent number: 8143467
    Abstract: A process for the preparation of oligomeric poly alpha-olefins comprises oligomerizing low molecular weight PAO in the presence of an ionic liquid catalyst under oligomerization conditions. The low molecular weight PAOs used as a feed or feed component of the present process are the light olefinic by-product fraction including the dimers and light fractions from the metallocene-catalyzed PAO oligomerization process.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: March 27, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Abhimanyu Onkar Patil, Satish Bodige
  • Patent number: 8143352
    Abstract: A process for fluid phase in-line blending of polymers.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: March 27, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Gabor Kiss, Patrick Brant, Robert Patrick Reynolds, Jr., Robert Charles Portnoy, David B. Dunaway
  • Patent number: 8138269
    Abstract: Isotactic polypropylene ethylene-propylene copolymer blends and in-line processes for producing them. The blends may have between 1 and 50 wt % of isotactic polypropylene with a melt flow rate of between 0.5 and 20,000 g/10 min and a melting peak temperature of 145° C. or higher, and wherein the difference between the DSC peak melting and the peak crystallization temperatures is less than or equal to 0.5333 times the melting peak temperature minus 41.333° C., and between 50 and 99 wt % of ethylene-propylene copolymer including between 10 wt % and 20 wt % randomly distributed ethylene with a melt flow rate of between 0.5 and 20,000 g/10 min, wherein the copolymer is polymerized by a bulk homogeneous polymerization process, and wherein the total regio defects in the continuous propylene segments of the copolymer is between 40 and 150% greater than a copolymer of equivalent melt flow rate and wt % ethylene polymerized by a solution polymerization process.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: March 20, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Gabor Kiss, Patrick Brant, Robert Patrick Reynolds, Jr., Aspy K. Mehta, Manika Varma-Nair, John W. Chu, Steven P. Rucker
  • Patent number: 8138133
    Abstract: The present invention provides a gear oil composition for vehicle driving systems, more specifically a gear oil composition for vehicle final reduction gears, which can improve a fuel-saving effect by reducing its viscosity and, at the same time, secure bearing fatigue life characteristics. The gear oil composition comprises a base oil (A) and another base oil (B), described below, and at least one species of additive for gear oil, and has a kinematic viscosity of 80 mm2/s or less at 40° C.: (A): a mineral-based oil and/or hydrocarbon-based synthetic oil having a kinematic viscosity of 3.5 to 7 mm2/s at 100° C., and (B): a mineral-based oil and/or hydrocarbon-based synthetic oil having a kinematic viscosity of 20 to 52 mm2/s at 100° C.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: March 20, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Yasuyoshi Suzuki, Narihiko Yoshimura, Kenji Ueno, Kouji Saitoh, Tatsuji Suganuma, Kiyonari Ishikawa
  • Patent number: 8119579
    Abstract: Lubricating oil compositions of the invention comprise a major amount of a base oil of lubricating viscosity and an effective amount of at least one lubricant antioxidant, the base oil comprising a blend of a Group III base oil derived from a synthesis gas, and a Group IV base oil wherein the ratio of the Group III to Group IV base oils is such that the lubricating composition exhibits an oxidation stability determined by a measure of high temperature deposits that is less than half the mathematical sum of the oxidative stability determined for each of the unblended Group III and Group IV oils containing the same antioxidant in the same amount as in the blend.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: February 21, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Jacob J. Habeeb, Eugine Choi, Douglas E. Deckman, William H. Buck, William L. Maxwell
  • Patent number: 8080501
    Abstract: The present invention is directed to green lubricant compositions comprising a base oil and an effective amount of premixed additives that improve wear protection and reduce phosphorus emissions.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: December 20, 2011
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Jacob J. Habeeb, Douglas E. Deckman, Brandon T. Weldon, Steven P. Rucker, Michael E. Landis
  • Patent number: 8080610
    Abstract: A monomer recycle process for fluid phase in-line blending of polymers is provided.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: December 20, 2011
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Gabor Kiss, Alan Anthony Galuska, James Richardson Lattner
  • Patent number: 8080601
    Abstract: The invention comprises lubricating compositions and hydraulic fluids containing N,N?-diaryl-m-phenylene diamine compounds that impart good levels of oxidation inhibition in the lubricants and hydraulic fluids.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: December 20, 2011
    Assignee: ExxomMobil Research and Engineering Company
    Inventors: Abhimanyu O. Patil, Jacob J. Habeeb