Chemical and Biomolecular Engineering

Search CurateND

Search criteria:

Department or Unit: Chemical and Biomolecular Engineering remove × Type of Work: Patent remove ×
Clear all

List of files deposited in CurateND that match your search criteria

  • Inventor(s):
    Mark Muldoon, Joan F. Brennecke, Edward J. Maginn, Eric F. V. Scriven, Colin H. McAteer
    Patent Number:
    US 7687513 B2
    Description:

    Disclosed herein are aminopyridinium cations and compositions containing these cations. Piperidino pyridinium cations and compositions containing these cations are also described. Ionic compositions, particularly liquid ionic compositions that contain the aminopyridinium cation or piperidino pyridinium cation are also described. Methods of enhancing the thermal stability of a compound, particularly an ionic compound, using the aminopyridinium or piperidino pyridinium cations, are also present…

    Date Issued:
    2010-03-30
    Resource Type
    Patent
  • Inventor(s):
    Allen H. Simpson, Slawomir T. Fryska, Mark L. La Forest, Roger L. Klinedinst, Alexander Mukasyan
    Patent Number:
    US 7922845 B2
    Description:

    An apparatus for bonding a first carbon composite to a second carbon composite through a reactant layer includes a housing, and a pair of conductive press plates electrically isolated from the housing. The press plates are adapted to position the two parts to be bonded with a reactant layer therebetween. The press plates are subjected to an electrical potential and a clamping force, sufficient to initiate a combustion reaction that creates a molten ceramic to bond together the carbon-carbon c…

    Date Issued:
    2011-04-12
    Resource Type
    Patent
  • Inventor(s):
    Eduardo E. Wolf
    Patent Number:
    US 7659227 B2
    Description:

    Embodiments of the present invention provide catalysts for production of hydrogen from methanol. In an embodiment, a Cu/Zn catalyst may be promoted by Zr and/or Ce, in addition to, in embodiments, Pd or another noble metal. In an embodiment, a chemical composition may have a Cu/Zn base catalyst with a promoter element of Ce, Zr, and/or Pd or another noble metal. Methods of producing hydrogen using such catalysts are also provided.

    Date Issued:
    2010-02-09
    Resource Type
    Patent
  • Inventor(s):
    Joan F. Brennecke, Edward J. Maginn
    Patent Number:
    US 6579343 B2
    Description:

    The present invention provides a method for purifying a gas by contacting the gas with a liquid ionic compound. Natural gas may be purified, removing water and carbon dioxide, by contacting the natural gas with a liquid ionic compound.

    Date Issued:
    2003-06-17
    Resource Type
    Patent
  • Inventor(s):
    Hsueh-Chia Chang, David T. Leighton
    Patent Number:
    US 6428754 B2
    Description:

    An exhaust gas treatment system and method for treating the exhaust gas of an internal combustion engine includes a catalytic converter and a catalytic preheater or igniter upstream of the catalytic converter. A bypass passage extends around the igniter such that during the ignition period about two-thirds of the exhaust gas is bypassed around the igniter and one-third passes through the igniter. The igniter raises the temperature of the exhaust gases passing therethrough to an adiabatic temp…

    Date Issued:
    2002-08-06
    Resource Type
    Patent
  • Inventor(s):
    Eduardo E. Wolf, Paul McAllister
    Patent Number:
    US 5312679 B2
    Description:

    A catalytic carbon formation technique in a carbon fiber substrate is disclosed. The carbon fiber substrate is first impregnated with a catalyst and is thereafter heated in an atmosphere rich in carbon and hydrogen. The catalyst is typically a Group VIII metal and may be selected from the group consisting of iron, nickel and cobalt. An incipient wetness technique for impregnating the substrate is also disclosed. A salt of the catalyst is provided in solution and void volume of the substrate i…

    Date Issued:
    1994-05-17
    Resource Type
    Patent
  • Inventor(s):
    James J. Carberry, Charles Benjamin Alcock
    Patent Number:
    US 5286698 B2
    Description:

    Solid oxide solutions of the formula La.sub.1-x Sr.sub.x CrO.sub.3-.differential. have been found to exhibit surprisingly high specific activity as catalysts for oxidation and hydrogenation reactions. The oxide solutions can be utilized in particulate form or applied as films to the surfaces of refractory substrates. The oxide solution catalysts are expected to be a viable alternative to the noble metal catalysts now used commercially for treatment of combustion chamber exhaust gases to reduc…

    Date Issued:
    1994-02-15
    Resource Type
    Patent
  • Inventor(s):
    Paul J. McGinn, Hongmei An
    Patent Number:
    US 8356475 B2
    Description:

    Described is a method of slowly releasing a catalyst for, inter alia, the purpose of soot oxidation in a particulate filter. An example method includes incorporating an alkali metal oxide in a glass. Slow leaching of the alkali from the glass provides a means to gradually deliver the catalyst over extended periods. Additionally, the example method includes increasing the amount of alkaline metal ions that may be leached from the glass.

    Date Issued:
    2013-01-22
    Resource Type
    Patent
  • Inventor(s):
    Murlin T. Howerton
    Patent Number:
    US 2670393 B2
    Description:

    This invention relates to a novel method for the production of polyisobutenes, and more particularly to the catalytic polymerization of isobutene to form low molecular weight polyisobutenes.

    Date Issued:
    1954-02-23
    Resource Type
    Patent
  • Inventor(s):
    Hsueh-Chia Chang, Shau-Chun Paul Wang, Dmitri Lastochkin, Leslie Yeo, Zachary Gagnon
    Patent Number:
    US 8267914 B1
    Description:

    The present invention provides an electrospray device using a high frequency alternating current (AC) above 10 kHz to generate fine micron sized drops. The apparatus generally functions by applying a high frequency alternating current electric field across one or more micro-needles and one or more conducting elements. The present invention may be used to generate aerosol drops for respiratory drug delivery or as a microencapsulation technique for the encapsulation of drugs, DNA, protein, oste…

    Date Issued:
    2012-09-18
    Resource Type
    Patent
  • Inventor(s):
    Allen H. Simpson, Mark L. La Forest, Alexander Mukasyan
    Patent Number:
    US 8178212 B2
    Description:

    Method for chemical bonding of fiberglass fibers to steel surfaces to prepare the steel for bonding with carbon composite material. This fiber-bonding step greatly increases the strength of the subsequent metal-composite bond. The fiberglass fibers which are chemically bonded to the steel provide a high surface area interface to entangle with carbon fibers in the composite component, and thereby inhibit crack formation on the boundary surface between the steel and composite components when th…

    Date Issued:
    2012-05-15
    Resource Type
    Patent
  • Inventor(s):
    Allen H. Simpson, Mark L. La Forest, Alexander Mukasyan
    Patent Number:
    US 8574470 B2
    Description:

    Method of joining a carbon-carbon composite piece 30 together with a metal insert 20, e.g. in the manufacture of aircraft brake discs 10. The method includes the steps of: providing a carbon-carbon composite piece 30 and a metal insert 20, wherein the metal insert 20 has a surface that is complementary to a surface of said carbon-carbon composite piece 30; providing a layer of a mixture of titanium powder and carbon powder on the first complementary mating surface; arranging the powder layer …

    Date Issued:
    2013-11-05
    Resource Type
    Patent