Patents by Inventor Lang H. Nguyen

Lang H. Nguyen 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).

  • Aqueous hydrophobic silica dispersions
    Patent number: 12202732
    Abstract: An aqueous hydrophobic silica dispersion includes a hydrophilic particulate silica, a hydrophobic particulate silica having a methanol number of at least 60, and a dispersant having at least one cationic or cationizable group and an HLB ratio of 2 to 20.
    Type: Grant
    Filed: April 17, 2024
    Date of Patent: January 21, 2025
    Assignee: Cabot Corporation
    Inventors: Lang H. Nguyen, Kavita K. Pai, Steven Jacobs, Tianqi Liu, Melissa J. Monello, Angelica M. Sanchez Garcia, Zhangliang Gui, Takashi Umehara
  • Aqueous Hydrophobic Silica Dispersions
    Publication number: 20240262699
    Abstract: An aqueous hydrophobic silica dispersion includes a hydrophilic particulate silica, a hydrophobic particulate silica having a methanol number of at least 60, and a dispersant having at least one cationic or cationizable group and an HLB ratio of 2 to 20.
    Type: Application
    Filed: April 17, 2024
    Publication date: August 8, 2024
    Inventors: Lang H. Nguyen, Kavita K. Pai, Steven Jacobs, Tianqi Liu, Melissa J. Monello, Angelica M. Sanchez Garcia, Zhangliang Gui, Takashi Umehara
  • Aqueous hydrophobic silica dispersions
    Patent number: 11987501
    Abstract: An aqueous hydrophobic silica dispersion includes a hydrophilic particulate silica, a hydrophobic particulate silica having a methanol number of at least 60, and a dispersant having at least one cationic or cationizable group and an HLB ratio of 2 to 20.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: May 21, 2024
    Assignee: Cabot Corporation
    Inventors: Lang H. Nguyen, Kavita K. Pai, Steven Jacobs, Tianqi Liu, Melissa J. Monello, Angelica M. Sanchez Garcia, Zhangliang Gui, Takashi Umehara
  • CONDUCTIVE EPOXY FORMULATIONS
    Publication number: 20220293294
    Abstract: An epoxy composition containing CNS-derived fragments provides conductivity and surface hardness. In one illustration, the epoxy composition includes carbon nanostructures, fragments of carbon nanostructures, fractured carbon nanotubes, elongated carbon strands, and/or dispersed carbon nanostructures dispersed in an epoxy resin. The epoxy composition may also include additional fillers or other additives.
    Type: Application
    Filed: March 9, 2022
    Publication date: September 15, 2022
    Inventors: Lang H. Nguyen, Tianqi Liu, Zhangliang Gui, Shi-lin Wang
  • MASONRY COMPOSITIONS COMPRISING CHEMICALLY TREATED CARBON PIGMENTS
    Publication number: 20210317038
    Abstract: Pigmented masonry compositions are provided that include chemically treated carbon black pigments having attached an organic group including an ionic or an ionizable group, the ionic or ionizable group being present at a level from 1.0 to 3.0 ?mol/m2. The compositions exhibit excellent color consistency and jetness and provide consistent color after long term exposure to high levels of moisture.
    Type: Application
    Filed: October 31, 2019
    Publication date: October 14, 2021
    Inventors: Miguel A. Herrera Fernandez, Qingling Zhang, Lang H. Nguyen, Lynne K. Larochelle Richard, Benjamin Dupnik, John Mathew, Koenraad C.J. Burger, Geoffrey D. Moeser
  • Aqueous Hydrophobic Silica Dispersions
    Publication number: 20210053833
    Abstract: An aqueous hydrophobic silica dispersion includes a hydrophilic particulate silica, a hydrophobic particulate silica having a methanol number of at least 60, and a dispersant having at least one cationic or cationizable group and an HLB ratio of 2 to 20.
    Type: Application
    Filed: January 24, 2019
    Publication date: February 25, 2021
    Inventors: Lang H. Nguyen, Kavita K. Pai, Steven Jacobs, Tianqi Liu, Melissa J. Monello, Angelica M. Sanchez Garcia, Zhangliang Gui, Takashi Umehara
  • Carbon black for waterborne coatings
    Patent number: 9803099
    Abstract: An aqueous carbon black millbase, an aqueous carbon black liquid coating, and a method of making the millbase and liquid coating are provided. The carbon blacks are modified carbon blacks that are engineered to be able to be stirred into an aqueous vehicle without high energy milling of the carbon black. The modified carbon blacks include low organic treatment levels and the millbase and liquid coating do not require large quantities of dispersant. The resulting coatings exhibit excellent viscosity, color, hiding power and stability.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: October 31, 2017
    Assignee: Cabot Corporation
    Inventors: Lang H. Nguyen, Qingling Zhang, Lynne K. LaRochelle Richard
  • Carbon Black for Waterborne Coatings
    Publication number: 20160137866
    Abstract: An aqueoue carbon black millbase, an aqueous carbon black liquid coating, and a method of making the millbase and liquid coating are provided. The carbon blacks are modified carbon blacks that are engineered to be able to be stirred into an aqueous vehicle without high energy milling of the carbon black. The modified carbon blacks include low organic treatment levels and the millbase and liquid coating do not require large quantities of dispersant. The resultant coatings exhibit excellent viscosity, color, hiding power and stability.
    Type: Application
    Filed: July 10, 2014
    Publication date: May 19, 2016
    Applicant: Cabot Corporation
    Inventors: Lang H. NGUYEN, Qingling ZHANG, Lynne K. LAROCHELLE RICHARD
  • Oxidized Carbon Blacks Treated with Polyetheramines and Coating Compositions Comprising Same
    Publication number: 20160024345
    Abstract: Disclosed herein are materials and compositions comprising: an oxidized carbon black having a BET surface area ranging from 50 to 700 m2/g, a DBP oil adsorption number ranging from 50 to 200 mL/100 g, and a primary particle size ranging from 7 to 30 nm; and a polyetheramine comprising ethylene oxide and propylene oxide monomers, wherein the polyetheramine coats the oxidized carbon black. Also disclosed are coatings and coating compositions comprising these materials and methods of making the same.
    Type: Application
    Filed: October 5, 2015
    Publication date: January 28, 2016
    Inventors: Angelica Maria Sanchez Garcia, Eugene N. Step, Jeffrey Scott Sawrey, Lang H. Nguyen, Joshua B. Preneta
  • Oxidized carbon blacks treated with polyetheramines and coating compositions comprising same
    Patent number: 9150739
    Abstract: Disclosed herein are materials and compositions comprising: an oxidized carbon black having a BET surface area ranging from 50 to 700 m2/g, a DBP oil adsorption number ranging from 50 to 200 mL/100 g, and a primary particle size ranging from 7 to 30 nm; and a polyetheramine comprising ethylene oxide and propylene oxide monomers, wherein the polyetheramine coats the oxidized carbon black. Also disclosed are coatings and coating compositions comprising these materials and methods of making the same.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 6, 2015
    Assignee: Cabot Corporation
    Inventors: Angelica Maria Sanchez Garcia, Eugene N. Step, Jeffrey Scott Sawrey, Lang H. Nguyen, Joshua B. Preneta
  • Oxidized Carbon Blacks Treated with Polyetheramines and Coating Compositions Comprising Same
    Publication number: 20150087764
    Abstract: Disclosed herein are materials and compositions comprising: an oxidized carbon black having a BET surface area ranging from 50 to 700 m2/g, a DBP oil adsorption number ranging from 50 to 200 mL/100 g, and a primary particle size ranging from 7 to 30 nm; and a polyetheramine comprising ethylene oxide and propylene oxide monomers, wherein the polyetheramine coats the oxidized carbon black. Also disclosed are coatings and coating compositions comprising these materials and methods of making the same.
    Type: Application
    Filed: March 14, 2013
    Publication date: March 26, 2015
    Applicant: Cabot Corporation
    Inventors: Angelica Maria Sanchez Garcia, Eugene N. Step, Jeffrey Scott Sawrey, Lang H. Nguyen, Joshua B. Preneta
  • Aqueous coating compositions
    Patent number: 7897658
    Abstract: The present invention relates to a dispersant composition comprising at least one non-ionic surfactant and at least one polymer comprising at least one salt of a carboxylic acid group. Also disclosed are pigment compositions and aqueous coating compositions comprising the dispersant composition.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: March 1, 2011
    Assignee: Cabot Corporation
    Inventor: Lang H. Nguyen
  • Non-aqueous coating compositions
    Patent number: 7495042
    Abstract: The present invention relates to a dispersant composition comprising at least one anionic surfactant and at least one polymer comprising at least one salt of a carboxylic acid group. Also disclosed are pigment compositions and non-aqueous coating compositions comprising the dispersant composition.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: February 24, 2009
    Assignee: Cabot Corporation
    Inventor: Lang H. Nguyen
  • Coating compositions comprising high t-area carbon products
    Patent number: 6645287
    Abstract: The present invention discloses coating compositions comprising a liquid vehicle and a carbon product having a t-area greater than or equal to 400 m2/g. In addition, the present invention discloses coating compositions comprising a liquid vehicle and a modified carbon product having a t-area greater than or equal to 350 m2/g, wherein the modified carbon product comprises a carbon product having attached at least one organic group.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: November 11, 2003
    Assignee: Cabot Corporation
    Inventors: Lang H. Nguyen, Thomas E. McElwain, Samuel N. Shields, Jr., John F. Nagel, David D. Smith, Jameel Menashi
  • Coating compositions comprising high t-area carbon products
    Publication number: 20020189498
    Abstract: The present invention discloses coating compositions comprising a liquid vehicle and a carbon product having a t-area greater than or equal to 400 m2/g. In addition, the present invention discloses coating compositions comprising a liquid vehicle and a modified carbon product having a t-area greater than or equal to 350 m2/g, wherein the modified carbon product comprises a carbon product having attached at least one organic group.
    Type: Application
    Filed: April 27, 2001
    Publication date: December 19, 2002
    Inventors: Lang H. Nguyen, Thomas E. McElwain, Samuel N. Shields, John F. Nagel, David D. Smith, Jameel Menashi