Patents by Inventor Ji Cui

Ji Cui has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8106229
    Abstract: Organosilane-modified nanoparticles of silica, having a particle size of no more than 1 micron, in which the organosilane resides throughout the entire volume of the nanoparticles and not just at the surfaces of the nanoparticle. The nanoparticles may be in a colloidal solution. They may be prepared by hydrolyzing an alkali silicate under acidic conditions to obtain a silicic acid dispersion, followed by adding an organosilane having hydroxyl and/or hydrolyzable groups to the dispersion under acid conditions; and then raising the pH of the dispersion to at least eight to form the nanoparticles. They may be used in an effective paint primer/protective coating formulation.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: January 31, 2012
    Assignee: Nalco Company
    Inventors: Brian T. Holland, Ji Cui, Timothy S. Keizer
  • Patent number: 8057918
    Abstract: New organic light-emitting diodes and related electroluminescent devices and methods for fabrication, using siloxane self-assembly techniques.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: November 15, 2011
    Assignee: Northwestern University
    Inventors: Tobin J. Marks, Quinglan Huang, Ji Cui, Jonathan Veinot, He Yan
  • Patent number: 8053094
    Abstract: New organic light-emitting diodes and related electroluminescent devices and methods for fabrication, using siloxane self-assembly techniques.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: November 8, 2011
    Assignee: Northwestern University
    Inventors: Tobin J. Marks, Qinglan Huang, Ji Cui, Jonathan Veinot
  • Patent number: 8029752
    Abstract: The invention provides a method of controlling silica in the liquor circuit of the Bayer process. The method involves addition of a promoter material to enhance the precipitation of DSP and includes adding one or more silica dispersion materials or dry silica forms to those parts of the circuit where precipitation of DSP and removal of silica from solution is desirable; for example the desilication stage of a Bayer process plant. The removal of DSP from solution reduces silica concentration in the liquor and thereby enables better control of process issues such as silica contamination in alumina product and DSP formation in later stages of the process where precipitation as scale onto vessel walls and equipment is problematical. As a result, the invention provides a significant reduction in the total cost of operating a Bayer process.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: October 4, 2011
    Assignee: Nalco Company
    Inventors: Timothy La, Ji Cui, John D. Kildea, David H Slinkman, Kim Richard Coleman
  • Publication number: 20110212006
    Abstract: The invention provides a method of inhibiting the accumulation of DSP scale in the liquor circuit of Bayer process equipment. The method includes adding one or more particular silane based small molecules to the liquor fluid circuit. These scale inhibitors reduce DSP scale formation and thereby increase fluid throughput, increase the amount of time Bayer process equipment can be operational and reduce the need for expensive and dangerous acid washes of Bayer process equipment. As a result, the invention provides a significant reduction in the total cost of operating a Bayer process.
    Type: Application
    Filed: February 25, 2011
    Publication date: September 1, 2011
    Inventors: Timothy La, John D. Kildea, Kevin L. O'Brien, Everett C. Phillips, Kailas B. Sawant, David H. Slinkman, Frederick J. Swiecinski, Ji Cui
  • Publication number: 20110149538
    Abstract: This provisional application relates to reducing electromagnetic interferences (EMI) using embedded magnetic material in a printable circuit board (PCB) and the applications thereof.
    Type: Application
    Filed: September 18, 2010
    Publication date: June 23, 2011
    Inventors: Ji Cui, Nie Luo
  • Publication number: 20110076209
    Abstract: The invention provides a method of inhibiting the accumulation of DSP scale in the liquor circuit of Bayer process equipment. The method includes adding one or more particular silane based small molecules to the liquor fluid circuit. These scale inhibitors reduce DSP scale formation and thereby increase fluid throughput, increase the amount of time Bayer process equipment can be operational and reduce the need for expensive and dangerous acid washes of Bayer process equipment. As a result, the invention provides a significant reduction in the total cost of operating a Bayer process.
    Type: Application
    Filed: September 25, 2009
    Publication date: March 31, 2011
    Inventors: Timothy La, Ji Cui, John D. Kildea, David H. Slinkman
  • Publication number: 20110077185
    Abstract: Dialkoxysilane and Monoalkoxysilane functionalized polymers were applied as scale control agents in Bayer process. The polymer inhibitors reduced the quantity of aluminum silicate scale formed in spent liquor while significantly changed the morphology of the scale. Also a method is provided for reducing aluminum silicate scale of Bayer process by adding the dialkoxysilane and monoalkoxysilane functionalized polymer into the Bayer liquor stream.
    Type: Application
    Filed: September 25, 2009
    Publication date: March 31, 2011
    Inventor: Ji Cui
  • Publication number: 20110067599
    Abstract: Disclosed and claimed is a composition that comprises a dispersion in a solvent of a compound comprising the reaction product of (1) a polyamine in which a plurality of amine groups are bonded to at least one radical comprising alkylene or arylene groups that separate the polyamine nitrogen atoms by at least four intermediate atoms in a chain, and (2) a silane which carries a plurality of silicon-bonded hydrolysable groups, and a silicon-bonded organic group that is covalently reactive with and which bonds with an amine group, to provide a reaction product molecule which comprises an average of at least about 2.5 of said silane groups per molecule. Some of these materials show superior advantage as a paint primer and some provide excellent corrosion resistance.
    Type: Application
    Filed: November 24, 2010
    Publication date: March 24, 2011
    Inventor: Ji Cui
  • Patent number: 7911029
    Abstract: Disclosed herein are multilayer electronic devices comprising a high dielectric constant polymer composite layer that contains conductive components for embedded capacitor applications.
    Type: Grant
    Filed: July 11, 2009
    Date of Patent: March 22, 2011
    Inventor: Ji Cui
  • Publication number: 20110006393
    Abstract: Disclosed herein are multilayer electronic devices comprising a high dielectric constant polymer composite layer that contains conductive components for embedded capacitor applications
    Type: Application
    Filed: July 11, 2009
    Publication date: January 13, 2011
    Inventor: Ji Cui
  • Patent number: 7862862
    Abstract: A method of applying to a metal surface a composition and drying the surface for crosslinking, which composition comprises a dispersion in the solvent of a compound comprising the reaction product of (1) a polyamine in which a plurality of amine groups are bonded to at least one radical comprising alkylene or arylene groups that separate the polyamine nitrogen atoms by at least four intermediate atoms in a chain, and (2) a silane which carries a plurality of silicon-bonded hydrolysable groups, and a silicon-bonded organic group that is covalently reactive with and which bonds with an amine group, to provide a reaction product molecule which comprises an average of at least about 2.5 of said silane groups per molecule. Some of these materials show superior advantage as a paint primer and some provide excellent corrosion resistance.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: January 4, 2011
    Assignee: Nalco Company
    Inventor: Ji Cui
  • Patent number: 7851419
    Abstract: This invention relates to personal lubricant compositions that are capable of being sprayed to a targeted area while maintaining lubricity.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: December 14, 2010
    Inventors: Nawaz Ahmad, Cheng-Ji Cui, Michael Eknoian, Russel Walters, Joseph James Librizzi, H. Michael Moscherosch, Bryant Ison, Stephen J. Mohary
  • Publication number: 20100254866
    Abstract: The invention provides a method of controlling silica in the liquor circuit of the Bayer process. The method involves addition of a promoter material to enhance the precipitation of DSP and includes adding one or more silica dispersion materials or dry silica forms to those parts of the circuit where precipitation of DSP and removal of silica from solution is desirable; for example the desilication stage of a Bayer process plant. The removal of DSP from solution reduces silica concentration in the liquor and thereby enables better control of process issues such as silica contamination in alumina product and DSP formation in later stages of the process where precipitation as scale onto vessel walls and equipment is problematical. As a result, the invention provides a significant reduction in the total cost of operating a Bayer process.
    Type: Application
    Filed: April 6, 2009
    Publication date: October 7, 2010
    Inventors: Timothy La, Ji Cui, John D. Kildea, David H. Slinkman, Kim Richard Coleman
  • Patent number: 7786055
    Abstract: This invention relates to the clear, substantially anhydrous, warming compositions containing one or more polyhydric alcohols. The invention also relates to the compositions that include at least one or more antioxidant or antioxidants in combination selected from the group consisting of tocopherol, ascorbic acid and butylated hydroxytoluene (BHT), to prevent oxidation of polyhydric alcohol combination that results in the development of odor.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: August 31, 2010
    Assignee: McNeil-PPC, Inc.
    Inventors: Nawaz Ahmad, Cheng-Ji Cui, Vinayak Santayya Kamat, Shirley Ng
  • Patent number: 7726487
    Abstract: This invention relates to novel compositions and methods of use by which the compositions of this invention are applied topically to one or more body parts of at least two individuals who bring said body parts into contact with the other individual and, when said body parts come into contact with each other, permit the formulations to interact and thereby achieve an unexpected sensation to each individual.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: June 1, 2010
    Assignee: McNeil-PPC, Inc.
    Inventors: Nawaz Ahmad, Cheng-Ji Cui, Bryant Ison, Elysha Huntington, Anthony Corwin Yumul, Jeffrey Lawrence Jeppesen
  • Publication number: 20090284145
    Abstract: New organic light-emitting diodes and related electroluminescent devices and methods for fabrication, using siloxane self-assembly techniques.
    Type: Application
    Filed: July 2, 2009
    Publication date: November 19, 2009
    Inventors: Tobin J. Marks, Qinglan Huang, Ji Cui, Jonathan Veinot
  • Publication number: 20090224657
    Abstract: New organic light-emitting diodes and related electroluminescent devices and methods for fabrication, using siloxane self-assembly techniques.
    Type: Application
    Filed: September 22, 2008
    Publication date: September 10, 2009
    Inventors: Tobin J. MARKS, Qinglan Huang, Ji Cui, Jonathan Veinot, He Yan
  • Publication number: 20090149359
    Abstract: This invention relates to a composition that is a novel improvement of non-oil containing metal working fluids, also known as synthetic metal working fluids. The invention is a non-oil containing metalworking lubricant composition, having an engineered particle size of greater than 200 nanometers upon dilution. The expansive particle size results in a substantial increase in lubricity, suitable for the heavy-duty operations previously attainable only with oil-containing products. Additionally, this non-oil containing metalworking lubricant incorporates the best of the positive attributes of oil-containing products into its composition, including excellent corrosion inhibition and heavy-duty operation capable lubricity.
    Type: Application
    Filed: December 10, 2007
    Publication date: June 11, 2009
    Inventors: Lloyd E. Hundley, Ji Cui
  • Publication number: 20080305244
    Abstract: A method of monitoring a coating applied to a metal surface is disclosed. Specifically, the method comprises the following: applying a sol composition to a metal surface, wherein said composition contains one or more alkoxysilyl group containing compounds, a fluorophore, and a solvent; forming a gelled coating on said surface from said composition; measuring the fluorescence of said coating with a fluorometer, wherein said fluorometer is capable of measuring reflective fluorescence emission measurements; correlating the fluorescence of said coating with the thickness or weight of said coating, and/or with the concentration of alkoxysilyl group containing compound in the coating composition; and optionally applying an additional coating to said metal surface when the thickness of the coating is less than a desired amount or adjusting the concentration of the alkoxysilyl group containing compound applied to said surface.
    Type: Application
    Filed: June 8, 2007
    Publication date: December 11, 2008
    Inventors: Ji Cui, Rodney H. Banks