Patents by Inventor Zhengang Zong

Zhengang Zong 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: 11846029
    Abstract: Disclosed are oleyl propylenediamine-based compounds used in compositions and methods for inhibiting corrosion. The method comprises introducing into a fluid source a composition comprising one or more oleyl propylenediamine-based compounds comprising Formula I: wherein Y1, Y2, and Y3 independently are hydrogen or a substituent of Formula (II): wherein V is —O— or —NH—, W is optionally present and is a linear or branched C1-10 aliphatic group, X is —H, —NZ3+, —COOH, —SO3H, —OSO3H2, —PO3H, —OPO3H2, or a salt thereof, each Z independently is hydrogen or a linear or branched C1-20 aliphatic group optionally interrupted or substituted with one or more oxygen atoms, and R is hydrogen or methyl, provided that at least one of Y1, Y2, or Y3 is a substituent of Formula (II).
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: December 19, 2023
    Assignee: Ecolab USA Inc.
    Inventors: Zhengang Zong, Roger W. Fowee, Joe L. Schwartz, Ashish Dhawan, Jeremy Moloney
  • Publication number: 20230193478
    Abstract: Disclosed are oleyl propylenediamine-based compounds used in compositions and methods for inhibiting corrosion. The method comprises introducing into a fluid source a composition comprising one or more oleyl propylenediamine-based compounds comprising Formula I: wherein Y1, Y2, and Y3 independently are hydrogen or a substituent of Formula (II): wherein V is —O— or —NH—, W is optionally present and is a linear or branched C1-10 aliphatic group, X is —H, —NZ3+, —COOH, —SO3H, —OSO3H2, —PO3H, —OPO3H2, or a salt thereof, each Z independently is hydrogen or a linear or branched C1-20 aliphatic group optionally interrupted or substituted with one or more oxygen atoms, and R is hydrogen or methyl, provided that at least one of Y1, Y2, or Y3 is a substituent of Formula (II).
    Type: Application
    Filed: June 27, 2022
    Publication date: June 22, 2023
    Inventors: Zhengang Zong, Roger W. Fowee, Joe L. Schwartz, Ashish Dhawan, Jeremy Moloney
  • Publication number: 20230037819
    Abstract: Disclosed are surface-modified nanoparticles and surfactants used in compositions and methods for enhancing hydro-carbon recovery from subterranean formations.
    Type: Application
    Filed: May 14, 2020
    Publication date: February 9, 2023
    Inventors: Duy T. Nguyen, William T. Duttlinger, JR., Rangarani Karnati, Zhengang Zong, Kai He, Linh Do
  • Publication number: 20220333252
    Abstract: Disclosed are oleyl propylenediamine-based compounds used in compositions and methods for inhibiting corrosion. The method comprises introducing into a fluid source a composition comprising one or more oleyl propylenediamine-based compounds comprising Formula I: wherein Y1, Y2, and Y3 independently are hydrogen or a substituent of Formula (II): wherein V is —O— or —NH—, W is optionally present and is a linear or branched C1-10 aliphatic group, X is —H, —NZ3+, —COOH, —SO3H, —OSO3H2, —PO3H, —OPO3H2, or a salt thereof, each Z independently is hydrogen or a linear or branched C1-20 aliphatic group optionally interrupted or substituted with one or more oxygen atoms, and R is hydrogen or methyl, provided that at least one of Y1, Y2, or Y3 is a substituent of Formula (II).
    Type: Application
    Filed: June 27, 2022
    Publication date: October 20, 2022
    Inventors: Zhengang Zong, Roger W. Fowee, Joe L. Schwartz, Ashish Dhawan, Jeremy Moloney
  • Patent number: 11427964
    Abstract: A composition is disclosed that may include an adhesive agent and a release aid. A Yankee dryer coating is also disclosed that may include a release aid. The release aid may include a cationic polymer salt that is a reaction product of a polyamine or a polyalkyleneimine and a substituted alkyl trialkyl quaternary ammonium salt. Also provided are methods of treating and creping paper.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: August 30, 2022
    Assignee: Ecolab USA Inc.
    Inventors: Gary S. Furman, Jr., Christopher Kaley, Zhengang Zong
  • Patent number: 11371151
    Abstract: Disclosed are oleyl propylenediamine-based compounds used in compositions and methods for inhibiting corrosion. The method comprises introducing into a fluid source a composition comprising one or more oleyl propylenediamine-based compounds comprising Formula I: wherein Y1, Y2, and Y3 independently are hydrogen or a substituent of Formula (II): wherein V is —O— or —NH—, W is optionally present and is a linear or branched C1-10 aliphatic group, X is —H, —NZ3+, —COOH, —SO3H, —OSO3H2, —PO3H, —OPO3H2, or a salt thereof, each Z independently is hydrogen or a linear or branched C1-20 aliphatic group optionally interrupted or substituted with one or more oxygen atoms, and R is hydrogen or methyl, provided that at least one of Y1, Y2, or Y3 is a substituent of Formula (II).
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: June 28, 2022
    Assignee: Ecolab USA Inc.
    Inventors: Zhengang Zong, Roger W. Fowee, Joe L. Schwartz, Ashish Dhawan, Jeremy Moloney
  • Patent number: 11319427
    Abstract: A cationic polymer salt composition is provided that includes a reaction product derived from reaction of a polyamine or a polyalkyleneimine and a substituted alkyl trialkyl quaternary ammonium salt. Also provided are surfactant compositions. The compositions may also include carriers, such as water, methanol, ethanol, propanol, isopropanol, butanol, isobutanol, monoethyleneglycol, an ethyleneglycol monobutyl ether, and hexylene glycol.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: May 3, 2022
    Assignee: ECOLAB USA Inc.
    Inventors: Zhengang Zong, Kun Xiong, Jeremy Moloney, Ashish Dhawan
  • Publication number: 20210298300
    Abstract: Disclosed herein are the methods of using specific di-cationic or multiple charged cationic compounds, which are derived from primary amine or polyamines through an aza-Michael addition with an ?, ?-unsaturated carbonyl compound or from polyamines through both an aza-Michael addition with an ?, ?-unsaturated carbonyl compound and a ring-opening reaction with an epoxide, in a fouling control composition to reduce microbial and/biofilm growth in a water system. The disclosed methods or compositions are found to be more effective than those methods or compositions including commonly used single quaternary compounds for reducing microbial or biofilm growth in water systems.
    Type: Application
    Filed: June 14, 2021
    Publication date: September 30, 2021
    Inventors: Ashish Dhawan, Kun Xiong, Carter M. Silvernail, Zhengang Zong
  • Patent number: 11058111
    Abstract: Disclosed herein are the methods of using specific di-cationic or multiple charged cationic compounds, which are derived from primary amine or polyamines through an aza-Michael addition with an ?,?-unsaturated carbonyl compound or from polyamines through both an aza-Michael addition with an ?,?-unsaturated carbonyl compound and a ring-opening reaction with an epoxide, in a fouling control composition to reduce microbial and/biofilm growth in a water system. The disclosed methods or compositions are found to be more effective than those methods or compositions including commonly used single quaternary compounds for reducing microbial or biofilm growth in water systems.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: July 13, 2021
    Assignee: Ecolab USA Inc.
    Inventors: Ashish Dhawan, Kun Xiong, Carter M. Silvernail, Zhengang Zong
  • Publication number: 20210198848
    Abstract: A composition is disclosed that may include an adhesive agent and a release aid. A Yankee dryer coating is also disclosed that may include a release aid. The release aid may include a cationic polymer salt that is a reaction product of a polyamine or a polyalkyleneimine and a substituted alkyl trialkyl quaternary ammonium salt. Also provided are methods of treating and creping paper.
    Type: Application
    Filed: June 7, 2019
    Publication date: July 1, 2021
    Applicant: ECOLAB USA INC.
    Inventors: Gary S. Furman, Jr., Christopher Kaley, Zhengang Zong
  • Publication number: 20210102044
    Abstract: A cationic polymer salt composition is provided that includes a reaction product derived from reaction of a polyamine or a polyalkyleneimine and a substituted alkyl trialkyl quaternary ammonium salt. Also provided are surfactant compositions. The compositions may also include carriers, such as water, methanol, ethanol, propanol, isopropanol, butanol, isobutanol, monoethyleneglycol, an ethyleneglycol monobutyl ether, and hexylene glycol.
    Type: Application
    Filed: December 15, 2020
    Publication date: April 8, 2021
    Applicant: ECOLAB USA, INC.
    Inventors: Zhengang Zong, Kun Xiong, Jeffrey R. Cramm, Xiaodong Huang, Jeremy Moloney, Ashish Dhawan
  • Patent number: 10899910
    Abstract: A cationic polymer salt composition is provided that includes a reaction product derived from reaction of a polyamine or a polyalkyleneimine and a substituted alkyl trialkyl quaternary ammonium salt. Also provided are surfactant compositions. The compositions may also include carriers, such as water, methanol, ethanol, propanol, isopropanol, butanol, isobutanol, monoethyleneglycol, an ethyleneglycol monobutyl ether, and hexylene glycol.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: January 26, 2021
    Assignee: ECOLAB USA INC.
    Inventors: Zhengang Zong, Kun Xiong, Jeffrey R. Cramm, Xiaodong Huang, Jeremy Moloney, Ashish Dhawan
  • Publication number: 20200140653
    Abstract: A cationic polymer salt composition is provided that includes a reaction product derived from reaction of a polyamine or a polyalkyleneimine and a substituted alkyl trialkyl quaternary ammonium salt. Also provided are surfactant compositions. The compositions may also include carriers, such as water, methanol, ethanol, propanol, isopropanol, butanol, isobutanol, monoethyleneglycol, an ethyleneglycol monobutyl ether, and hexylene glycol.
    Type: Application
    Filed: December 30, 2019
    Publication date: May 7, 2020
    Applicant: ECOLAB USA, INC.
    Inventors: Zhengang Zong, Kun Xiong, Jeffrey R. Cramm, Xiaodong Huang, Jeremy Moloney, Ashish Dhawan
  • Publication number: 20200080206
    Abstract: Disclosed are oleyl propylenediamine-based compounds used in compositions and methods for inhibiting corrosion. The method comprises introducing into a fluid source a composition comprising one or more oleyl propylenediamine-based compounds comprising Formula I: wherein Y1, Y2, and Y3 independently are hydrogen or a substituent of Formula (II): wherein V is —O— or —NH—, W is optionally present and is a linear or branched C1-10 aliphatic group, X is —H, —NZ3+, —COOH, —SO3H, —OSO3H2, —PO3H, —OPO3H2, or a salt thereof, each Z independently is hydrogen or a linear or branched C1-20 aliphatic group optionally interrupted or substituted with one or more oxygen atoms, and R is hydrogen or methyl, provided that at least one of Y1, Y2, or Y3 is a substituent of Formula (II).
    Type: Application
    Filed: September 5, 2019
    Publication date: March 12, 2020
    Inventors: Zhengang Zong, Roger W. Fowee, Joe L. Schwartz, Ashish Dhawan, Jeremy Moloney
  • Publication number: 20200068885
    Abstract: Disclosed herein are the methods of using specific di-cationic or multiple charged cationic compounds, which are derived from primary amine or polyamines through an aza-Michael addition with an ?, ?-unsaturated carbonyl compound or from polyamines through both an aza-Michael addition with an ?, ?-unsaturated carbonyl compound and a ring-opening reaction with an epoxide, in a fouling control composition to reduce microbial and/biofilm growth in a water system. The disclosed methods or compositions are found to be more effective than those methods or compositions including commonly used single quaternary compounds for reducing microbial or biofilm growth in water systems.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 5, 2020
    Inventors: ASHISH DHAWAN, Kun Xiong, CARTER M. SILVERNAIL, Zhengang Zong
  • Patent number: 10563042
    Abstract: A cationic polymer salt composition is provided that includes a reaction product derived from reaction of a polyamine or a polyalkyleneimine and a substituted alkyl trialkyl quaternary ammonium salt. Also provided are surfactant compositions. The compositions may also include carriers, such as water, methanol, ethanol, propanol, isopropanol, butanol, isobutanol, monoethyleneglycol, an ethyleneglycol monobutyl ether, and hexylene glycol.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: February 18, 2020
    Assignee: ECOLAB USA INC.
    Inventors: Zhengang Zong, Kun Xiong, Jeffrey R. Cramm, Xiaodong Huang, Jeremy Moloney, Ashish Dhawan
  • Patent number: 10519602
    Abstract: An acrylamide-based polymer which contains one or more multiquaternized (“multiquat”) monomer unit(s) is provided. The acrylamide-based polymer can be used in a papermaking process to reduce pitch and stickies deposition, improve retention and drainage, and enhance dry strength properties of paper. Also included is a method of controlling pitch and stickies deposition in papermaking comprising treating pulp slurry with an acrylamide-based polymer which contains one or more multiquaternized (“multiquat”) monomer unit(s).
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: December 31, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Xiaojin Harry Li, Sergey M. Shevchenko, Ross Gray, Robert M. Lowe, David Jordan, Zhengang Zong
  • Publication number: 20180363247
    Abstract: An acrylamide-based polymer which contains one or more multiquaternized (“multiquat”) monomer unit(s) is provided. The acrylamide-based polymer can be used in a papermaking process to reduce pitch and stickies deposition, improve retention and drainage, and enhance dry strength properties of paper. Also included is a method of controlling pitch and stickies deposition in papermaking comprising treating pulp slurry with an acrylamide-based polymer which contains one or more multiquaternized (“multiquat”) monomer unit(s).
    Type: Application
    Filed: June 14, 2018
    Publication date: December 20, 2018
    Applicant: Ecolab USA Inc.
    Inventors: Xiaojin Harry Li, Sergey M. Shevchenko, Ross Gray, Robert M. Lowe, David Jordan, Zhengang Zong
  • Publication number: 20180163020
    Abstract: A cationic polymer salt composition is provided that includes a reaction product derived from reaction of a polyamine or a polyalkyleneimine and a substituted alkyl trialkyl quaternary ammonium salt. Also provided are surfactant compositions. The compositions may also include carriers, such as water, methanol, ethanol, propanol, isopropanol, butanol, isobutanol, monoethyleneglycol, an ethyleneglycol monobutyl ether, and hexylene glycol.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 14, 2018
    Applicant: Ecolab USA, Inc.
    Inventors: Zhengang Zong, Kun Xiong, Jeffrey R. Cramm, Xiaodong Huang, Jeremy Moloney, Ashish Dhawan
  • Patent number: 9388323
    Abstract: Disclosed are latex polymers and an aqueous coating compositions having excellent freeze-thaw stability, open time, stain resistance, low temperature film formation, foam resistance, block resistance, adhesion, water sensitivity and a low-VOC content. The latex polymers and aqueous coating compositions include at least one latex polymer derived from at least one monomer copolymerized or blended with an alkoxylated compound, for example an alkoxylated tristyrylphenol or an alkoxylated tributylphenol. Also provided is an aqueous coating composition including at least one latex polymer, at least one pigment, water and at least one freeze-thaw additive. Typically, the freeze-thaw additive in an amount greater than about 1.3% by weight of the polymer, typically in an amount greater than about 2% by weight of the polymer, in an amount greater than about 4% by weight of the polymer, in an amount greater than about 7.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: July 12, 2016
    Assignee: RHODIA OPERATIONS
    Inventors: Zhengang Zong, Yi-Zhong Li, Jose Ruiz