Patents Examined by Taiwo Oladapo
  • Double crosslinked sodium alginate/polyvinyl alcohol composite nanofiltration membrane and preparation method thereof
    Patent number: 10427104
    Abstract: Provided is a double crosslinked sodium alginate/polyvinyl alcohol composite nanofiltration membrane, including: a porous polymer support; and a sodium alginate/polyvinyl alcohol blend coating layer formed on the porous polymer support and having a first crosslinking structure formed by complexation with divalent metal ions and a second crosslinking structure formed by acetalization with aldehyde groups. The double crosslinked sodium alginate/polyvinyl alcohol composite nanofiltration membrane disclosed herein not only shows excellent chlorine resistance but also has improved water permeation flux and salt rejection ratio, and thus may be manufactured in the form of a spirally wound type membrane module and applied to a water treatment system in which it may be utilized for an actual nanofiltration separation process.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: October 1, 2019
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Saira Bano, Asif Mahmood, Seong-Joong Kim, Kew Ho Lee
  • De-icing lubricant composition
    Patent number: 10428290
    Abstract: A de-icing lubricant composition is provided, including isopropyl alcohol; and mineral oil. The isopropyl alcohol may be 60-90% of the composition by weight. The mineral oil may be 10-30% of the composition by weight. The composition may include a dye and/or a propellant. The propellant may be CO2. A method of restoring mobility to frozen components is also provided by applying a composition as described above to a frozen component.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: October 1, 2019
    Inventor: Dustin Falconer
  • Water-based coolant
    Patent number: 10421924
    Abstract: Disclosed herein is a method of using a water-based coolant for quenching or cutting a metal material. The water-based coolant is formed of: water; at least one inorganic acid salt selected from the group consisting of a carbonate, a hydrogen carbonate, a sesquicarbonate, a phosphate, a borate, a molybdate and a tungstate; a metal corrosion inhibitor; and optionally at least one of a bactericide, a water-soluble rust inhibitor, an antioxidant and a detergent dispersant.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: September 24, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Mayu Hasegawa, Masahisa Goto, Katsumi Ichitani, Kenro Noguchi
  • Liquid compositions of overbased calcium carboxylate and process for its preparation
    Patent number: 10407558
    Abstract: The present invention relates to light color, shelf-stable liquid compositions of overbased calcium carboxylate soaps and a process for their preparation. The inventive soaps are prepared by neutralizing calcium base in a mixture of two different aliphatic carboxylic acids and carbonating the mixture in the presence of a non-polar hydrocarbon solvent and a polar organic solvent as a promoter under controlled temperature conditions. The overbased calcium carboxylate soaps of the invention contain 20%-90% by weight of C7 to C25 saturated carboxylic acids, which are branched on carbon 2, and between 1% and 20% by weight short chain saturated carboxylic acids. These liquid compositions have light colors and excellent heat stability. They can be used as anticorrosion/antirust additives, and paint dryers and stabilizers, in paints, coatings and lubricants, as well as other applications.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: September 10, 2019
    Assignee: Delta Specialties Company
    Inventors: Tarek Moustafa, Eslam Moustafa
  • Ashless or reduced ash quaternary detergents
    Patent number: 10407641
    Abstract: A composition of an oil-soluble ionic detergent that does not contribute metal ions to the composition, and which comprises a quaternary non-metallic pnictogen cation and an organic anion having at least one hydrocarbyl group of sufficient length to impart oil solubility to the detergent, the detergent having a total base number (TBN) to total acid number (TAN) ratio of at least 2:1 imparts ash-free basicity to a lubricant composition.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: September 10, 2019
    Assignee: The Lubrizol Corporation
    Inventors: Ewan E. Delbridge, Virginia A. Carrick, John K. Pudelski, Matthew D. Gieselman, Christopher L. Friend, Patrick E. Mosier, Michelle M. Rogers, Mark T. Tierney
  • Compounds with antidegradant and antifatigue efficacy and compositions including said compounds
    Patent number: 10407562
    Abstract: A compound represented by the formula: wherein R is selected from the group consisting of (i) substituted or unsubstituted alkyl with C=0 to 12 inclusive; (ii) substituted or unsubstituted aryl; and (iii) substituted and unsubstituted alkylaryl; wherein X1, X2, X3 and X4 are each selected from the group consisting of alkyl, aryl, alkylaryl groups and hydrogen; wherein R1, R2, R3, and R4 are each selected from the group consisting of alkyl, aryl, alkylaryl groups and hydrogen and R2 and R3 may optionally be bridged by a polymethylene group; wherein when C=0 in R, the combined group R1 R2 is the same as the combined group R3 R4; and wherein when C=1 in R, each of R1, R2, R3, and R4 are hydrogen.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: September 10, 2019
    Assignee: Eastman Chemical Company
    Inventors: Matthew Allen Boone, Donald L. Fields, Jr., Frederick Ignatz-Hoover
  • Porous filter
    Patent number: 10391457
    Abstract: A porous filter includes a porous laminate in which a plurality of biaxially stretched porous sheets made of PTFE are stacked. The Gurley number G and the bubble point B (kPa) of the porous laminate satisfy the following expressions (1) and (2): log G>3.7×10?3×B?0.8??(1) log G<4.9×10?3×B+0.45??(2).
    Type: Grant
    Filed: May 25, 2015
    Date of Patent: August 27, 2019
    Assignee: SUMITOMO ELECTRIC FINE POLYMER, INC.
    Inventors: Hiroyuki Tsujiwaki, Atsushi Uno, Fumihiro Hayashi
  • Modified thin film composite reverse osmosis membrane and a process for preparation thereof
    Patent number: 10384171
    Abstract: The present invention relates to a complete process for preparation of high flux and salt rejection thin film composite (TFC) reverse osmosis (RO) membrane including process for preparation of support membrane for thin film, process for thin film coating of support membrane by in-situ interfacial polymerization between diamines and trimesoyl chloride, machine design, chemistry and details of process (engineering+chemistry+ambient) parameter at 1×100 sqm scale upgradeable to a scale even 10-20 times higher. The produced membrane is characterized by 96% salt rejection and 48 LM-2H 1 flux with 2000 ppm sodium chloride solution at 250 psi pressure and 95% salt rejection and 46 LM2H 1 flux with 35000 ppm sodium chloride solution at 900 psi pressure. The present invention also relates to complete machine design for PSF ultrafiltration membrane casting and coating for TFC membrane production at commercial level.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: August 20, 2019
    Assignee: Council of Scientific & Industrial Research
    Inventors: Alamuru Venkata Rami Reddy, Saha Nirmal Kumar, Jewrajka Suresh Kumar, Jitendra Jaydevprasad Trivedi, Paramita Ray, Nagendra Pathak, Gaurang Shambuprasad Trivedi, Temubha Bhupatsinh Gohil, Rahul Shubhash Patil
  • Lubricant material for assisting machining process and machining method
    Patent number: 10384322
    Abstract: The present invention provides a lubricant material for assisting machining process comprising a high molecular weight compound (A) having a weight average molecular weight of 5×104 or higher and 1×106 or lower, a medium molecular weight compound (B) having a weight average molecular weight of 1×103 or higher and lower than 5×104, and a carbon (C) having an average particle size of 100 ?m or larger.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: August 20, 2019
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Yousuke Matsuyama, Takaaki Ogashiwa
  • Filter core and manufacturing method thereof
    Patent number: 10376819
    Abstract: A filter core and manufacturing method thereof, the manufacturing method has the following steps: adhering a wavy filtering sheet and a flat filtering sheet, pressing the filtering sheets, and rolling the filtering sheets. A part of peaks of the wavy filtering sheet are pressed to lean toward a same side. In particular, two sides of a first end sealing adhesive layer are pressed. Thus, the first end sealing adhesive layer is concentrated, such that the glue is uniformly spread to the two sides. Besides, the pressing on the two sides makes the two sides of the first end sealing adhesive layer adhered securely, thereby preventing the wavy filtering sheet from rebounding upward and forming bubbles. Thus, the first end sealing adhesive layer can be formed with less quantity of glue, which accelerating the cooling and raises manufacture efficiency.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: August 13, 2019
    Assignee: PRO-PURE INC.
    Inventor: Hsiang-Chi Lin
  • Low viscosity lubricating polyolefins
    Patent number: 10377960
    Abstract: A low viscosity oil has more than 50% by weight of 9-methylnonadecane. A lubricating composition has this low viscosity oil as base oil and, optionally, another base oil or an additive. The low viscosity oil has a kinematic viscosity at 100° C., measured by the ASTM D445 standard, of 0.5 to 2.5 mm2s?1. The low viscosity oil can be prepared using a metallocene catalyst, and the low viscosity oil can be used as high performance lubricant for lubrication in the field of motors, hydraulic fluids and gears, in particular bridges and transmissions.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: August 13, 2019
    Assignee: TOTAL MARKETING SERVICES
    Inventors: Marion Courtiade, Julien Sanson, Alexandre Welle, Martine Slawinski, Jeroen Wassenaar
  • Hydrogel-based decontamination of aqueous samples containing nanoparticles
    Patent number: 10343934
    Abstract: The present invention relates to the use of a supramolecular system in order to remove particles from a liquid medium containing same. According to the invention, the supramolecular system includes at least one molecule having a low molecular weight and/or an organic compound from living organisms, preferably from jellyfish, said compound being selected from among collagen, a polysaccharide, a proteoglycan or a mixture of two of said organic compounds, and said molecule having a low molecular weight and formula (I) as defined herein. The invention also relates to a method for removing particles from a liquid medium containing same. The invention is particularly suitable for use in water decontamination and biotechnology.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: July 9, 2019
    Assignee: UNIVERSITE DE BORDEAUX
    Inventors: Philippe Barthelemy, Alain Thiery, Amit Patwa
  • Fullerene derivative, fluororesin composition, and lubricant
    Patent number: 10343972
    Abstract: A fullerene derivative of the present invention has a fullerene skeleton and a plurality of perfluoropolyether chains in a molecule, wherein the perfluoropolyether chains are bonded to the fullerene skeleton via methano groups, and a lubricant and fluororesin composition of the present invention contain the derivative.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: July 9, 2019
    Assignees: SHOWA DENKO K.K., MITSUBISHI CORPORATION
    Inventors: Takeshi Igarashi, Kentaro Watanabe
  • Grease composition and bearing
    Patent number: 10336964
    Abstract: The invention provides a grease composition suitable for being packed in roll bearings to be lubricated at elevated temperatures and a bearing in which the above-mentioned grease composition is packed. In the grease composition containing a base oil, a urea-containing thickener and an additive, the additive includes an overbased metal sulfonate and the amount of the overbased metal sulfonate is 0.05 to 1.00 mass % with respect to the total amount of the grease composition. The bearing has the above-mentioned grease composition sealed therein.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: July 2, 2019
    Assignee: KYODO YUSHI CO., LTD.
    Inventors: Yutaka Imai, Yuji Onuki
  • Viscosity index improver, lubricant composition, and method for manufacturing lubricant composition
    Patent number: 10336961
    Abstract: The present invention provides a viscosity index improver having an excellent viscosity index improving effect, a lubricant composition having excellent low-temperature viscosity in which the viscosity reduction due to long-term use is small, and a method for producing the lubricant composition. A viscosity index improver of the present invention contains a copolymer (A) containing, as monomer units, an alkyl (meth)acrylate (a) whose alkyl group contains 5 or more carbon atoms, and an alkyl (meth)acrylate (b) whose alkyl group contains 1 to 4 carbon atoms, wherein the alkyl group of the alkyl (meth)acrylate (a) whose alkyl group contains 5 or more carbon atoms has a molar-average carbon number (Q) of 29 or more, and the alkyl (meth)acrylate (b) whose alkyl group contains 1 to 4 carbon atoms is contained as a monomer unit in an amount of 38 to 75% by weight based on the weight of the copolymer (A).
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: July 2, 2019
    Assignee: SANYO CHEMICAL INDUSTRIES, LTD.
    Inventors: Shigekuni Nakada, Ayumu Sakaguchi, Satoshi Matsumoto, Kenyuu Yoshida
  • Low viscosity low volatility lubricating oil base stocks and methods of use thereof
    Patent number: 10316265
    Abstract: A composition including one or more diester compounds represented by the formula as defined herein. The composition has a viscosity (Kv100) from about 1 cSt to about 10 cSt at 100° C. as determined by ASTM D445, a viscosity index (VI) from about ?100 to about 300 as determined by ASTM D2270, and a Noack volatility of no greater than 50 percent as determined by ASTM D5800. A process for producing the composition, a lubricating oil base stock and lubricating oil containing the composition, and a method for improving one or more of thermal and oxidative stability, solubility and dispersancy of polar additives, deposit control and traction control in a lubricating oil by using as the lubricating oil a formulated oil containing the composition.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: June 11, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Man Kit Ng, Halou Oumar-Mahamat, Hong Cheng, David A. Blain
  • Thermosetting resin composition, sliding member and method for producing sliding member
    Patent number: 10308890
    Abstract: There is provided a thermosetting resin composition including: an epoxy compound having an isocyanuric acid ring represented by the following formula (1); a solid lubricant; and a dicyanate compound, or the dicyanate compound and a bismaleimide compound.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: June 4, 2019
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Tadahiko Karaki, Aya Kakegawa, Koichiro Sagiyama
  • Lubricity additives for fuels
    Patent number: 10308889
    Abstract: Fuel additive compositions that include synergistic mixtures of one or more neutral lubricity additives and one or more monoacidic lubricity additives to provide wear and/or friction reduction in fuels.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: June 4, 2019
    Assignees: Afton Chemical Corporation, Shell Oil Company
    Inventors: William Colucci, Joseph Calderone, Joseph Russo
  • Macromolecular antioxidants based on dual type moiety per molecule: structures, methods of making and using the same
    Patent number: 10294423
    Abstract: Disclosed are compounds represented by structural formula (I), methods of producing compounds represented by structural formula, and their use in inhibiting oxidation in an oxidizable material.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: May 21, 2019
    Assignee: Polnox Corporation
    Inventors: Ashok L. Cholli, Vijayendra Kumar
  • Maleinated derivatives
    Patent number: 10294210
    Abstract: This invention relates to malienated derivatives made from maleic anhydride, functionalized monomers, and one or more additional reagents, e.g., an oxygen-containing reagent (e.g., alcohol, polyol), a nitrogen-containing reagent (e.g., amine, polyamine, aminoalcohol), a metal and/or a metal compound. The invention relates to lubricants, functional fluids, fuels, dispersants, detergents and functional compositions (e.g., cleaning solutions, food compositions, etc.).
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: May 21, 2019
    Assignee: Elevance Renewable Sciences, Inc.
    Inventors: Stephen A. Di Biase, Syed Q. A. Rizvi, Georgeta Hategan