Patents by Inventor Lichang Zhou

Lichang Zhou 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).

  • Publication number: 20240110102
    Abstract: Disclosed are ethylenically unsaturated salts of allyl (poly)ether sulfates utilized as reactive surfactants or emulsifiers during emulsion polymerization.
    Type: Application
    Filed: December 13, 2023
    Publication date: April 4, 2024
    Applicant: RHODIA OPERATIONS
    Inventors: Lichang Zhou, Adnan Siddiqui, Dongcheel Lee, Derek Pakenham, Eugene J. Anderson, Shailesh Majmudar, Eunyong Kim, Homayoun Jamasbi, An Tran, Peng Zhang
  • Patent number: 11884867
    Abstract: Disclosed are ethylenically unsaturated salts of allyl (poly)ether sulfates utilized as reactive surfactants or emulsifiers during emulsion polymerization.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: January 30, 2024
    Assignee: RHODIA OPERATIONS
    Inventors: Lichang Zhou, Adnan Siddiqui, Dongcheel Lee, Derek Pakenham, Eugene J. Anderson, Shailesh Majmudar, Eunyong Kim, Homayoun Jamasbi, An Tran, Peng Zhang
  • Patent number: 11623972
    Abstract: Disclosed are novel substituted catechol monomers, polymers made with the substituted catechol monomers, pH responsive polymers made with the substituted catechol monomers, and related methods. Also provided is a method of preparing an aqueous coating composition such as a latex paint including the above components.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: April 11, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Eugene J. Anderson, Nemesio Martinez-Castro, Lichang Zhou
  • Patent number: 11613597
    Abstract: Disclosed are novel substituted catechol polymeric dispersants and related method of preparing. Also disclosed are methods of dispersing at least one pigment comprising the following steps: contacting an aqueous solution containing at least one pigment with the polymeric dispersant copolymers as described herein.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: March 28, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Eugene J. Anderson, Nemesio Martinez-Castro, Lichang Zhou
  • Patent number: 11613508
    Abstract: Disclosed are novel catechol dditives and the like, methods of preparing, as well as compositions and methods using such compositions in various applications. Also provided is a method of preparing an aqueous coating composition such as a latex paint including the above components.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: March 28, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Eugene J. Anderson, Nemesio Martinez-Castro, Lichang Zhou
  • Publication number: 20220235272
    Abstract: Disclosed are ethylenically unsaturated salts of allyl (poly)ether sulfates utilized as reactive surfactants or emulsifiers during emulsion polymerization.
    Type: Application
    Filed: May 1, 2020
    Publication date: July 28, 2022
    Inventors: Lichang ZHOU, Adnan SIDDIQUI, Dongcheel LEE, Derek PAKENHAM, Eugene J. ANDERSON, Shailesh MAJMUDAR, Eunyong KIM, Homayoun JAMASBI, An TRAN, Peng ZHANG
  • Publication number: 20220195077
    Abstract: Processes to prepare aqueous polymer dispersions are provided, as well as compositions thereof, which have high solids content (e.g., 50%) with low viscosity. The process uses a selective hydrophilic macro-RAFT agent of formula (I), and is substantially free of surfactants. This process can be used to make latex polymers with good stability, which can be used widely in coatings (e.g., architectural paints, stone paints, industrial coatings, wood coatings, etc.), adhesives, sealants and mastic compositions.
    Type: Application
    Filed: April 14, 2020
    Publication date: June 23, 2022
    Inventors: Lichang ZHOU, Dongcheel LEE, Tiffany CHEN, Fabio TREZZI, Shailesh MAJMUDAR, Homayoun JAMASBI, An TRAN, Pierre-Emmanuel DUFILS, Laurianne TIMBART, David James WILSON, Changheon KANG
  • Patent number: 10836856
    Abstract: Paint, clear coat, stain, adhesive, or other aqueous formulations that contain at least one [(dimethylamino)alkyl]-imino-dialcohol and a alkyd emulsion, polymer latex or polyurethane dispersion binder. Also disclosed are methods for manufacture and use of these formulations. The [(dimethylamino)alkyl]-imino-dialcohols provide aqueous formulations having low odor and reduced volatile organic compounds (VOC). The [(dimethylamino)alkyl]-imino-dialcohols also aid in dispersing pigment and other solids so less co-dispersant is needed for aqueous paint or coating formulations.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: November 17, 2020
    Assignee: RHODIA OPERATIONS
    Inventors: Lichang Zhou, Derek Pakenham, Ayaz Khan, Hervé´ Adam, Jose P. Ruiz
  • Publication number: 20200071252
    Abstract: Disclosed are novel catechol dditives and the like, methods of preparing, as well as compositions and methods using such compositions in various applications. Also provided is a method of preparing an aqueous coating composition such as a latex paint including the above components.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 5, 2020
    Applicant: RHODIA OPERATIONS
    Inventors: Eugene J. ANDERSON, Nemesio MARTINEZ-CASTRO, Lichang ZHOU
  • Publication number: 20200071441
    Abstract: Disclosed are novel substituted catechol monomers, polymers made with the substituted catechol monomers, pH responsive polymers made with the substituted catechol monomers, and related methods. Also provided is a method of preparing an aqueous coating composition such as a latex paint including the above components.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 5, 2020
    Applicant: RHODIA OPERATIONS
    Inventors: Eugene J. ANDERSON, Nemesio Martinez-Castro, Lichang Zhou
  • Publication number: 20200071442
    Abstract: Disclosed are novel substituted catechol polymeric dispersants and related method of preparing. Also disclosed are methods of dispersing at least one pigment comprising the following steps: contacting an aqueous solution containing at least one pigment with the polymeric dispersant copolymers as described herein.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 5, 2020
    Applicant: RHODIA OPERATIONS
    Inventors: Eugene J. ANDERSON, Nemesio MARTINEZ-CASTRO, Lichang ZHOU
  • Publication number: 20200010718
    Abstract: Disclosed are novel colorant systems and related method of preparing said systems. Also disclosed are methods of dispersing at least one pigment to prepare a universal colorant system, as well as methods for preparing coatings and paints utilizing the disclosed colorant systems.
    Type: Application
    Filed: July 3, 2019
    Publication date: January 9, 2020
    Applicant: RHODIA OPERATIONS
    Inventors: Lichang Zhou, Homayoun Jamasbi
  • Patent number: 10131605
    Abstract: Disclosed are novel tri-substituted aromatic-alkoxylated polymeric dispersants and related method of preparing. Also disclosed are methods of dispersing at least one pigment comprising the following steps: contacting an aqueous solution containing at least one pigment with the polymeric dispersant copolymers as described herein.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: November 20, 2018
    Assignee: Rhodia Operations
    Inventors: Nemesio Martinez-Castro, Lichang Zhou, Eugene J. Anderson, Brian Vest
  • Publication number: 20180072909
    Abstract: Coatings and other applications containing latex having self-thickening properties obtainable by methods of adding a water soluble amphiphilic copolymer in a aqueous dispersion of a water-insoluble polymer obtained from ethylenically unsaturated monomers.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 15, 2018
    Applicant: RHODIA OPERATIONS
    Inventors: Lichang ZHOU, Adnan SIDDIQUI, Homayoun JAMASBI, David James WILSON, Pierre-Emmanuel DUFILS, Tiffany CHEN, Fabio TREZZI
  • Publication number: 20170355806
    Abstract: Paint, clear coat, stain, adhesive, or other aqueous formulations that contain at least one [(dimethylamino)alkyl]-imino-dialcohol and a alkyd emulsion, polymer latex or polyurethane dispersion binder. Also disclosed are methods for manufacture and use of these formulations. The [(dimethylamino)alkyl]-imino-dialcohols provide aqueous formulations having low odor and reduced volatile organic compounds (VOC). The [(dimethylamino)alkyl]-imino-dialcohols also aid in dispersing pigment and other solids so less co-dispersant is needed for aqueous paint or coating formulations.
    Type: Application
    Filed: May 20, 2015
    Publication date: December 14, 2017
    Applicant: RHODIA OPERATIONS
    Inventors: Lichang ZHOU, Derek PAKENHAM, Ayaz KHAN, Hervé ADAM, Jose P. RUIZ
  • Patent number: 9650323
    Abstract: Disclosed are novel tri-substituted aromatic-alkoxylated surface active compounds. Also provided is a method of preparing an aqueous coating composition such as a latex paint including the above components.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: May 16, 2017
    Assignee: RHODIA OPERATIONS
    Inventors: Eugene J. Anderson, Jr., Derek Pakenham, Nemesio Martinez-Castro, Jose P. Ruiz, Michael Rhodes, Lichang Zhou
  • Publication number: 20160333213
    Abstract: Disclosed are novel dispersants for universal colorant systems, novel colorant systems and related method of preparing said systems. Also disclosed are methods of dispersing at least one pigment to prepare a universal colorant system, as well as methods for preparing coatings and paints utilizing the disclosed colorant systems.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 17, 2016
    Applicant: RHODIA OPERATIONS
    Inventors: Lichang ZHOU, John HUGHES, Derek PAKENHAM
  • Publication number: 20150267035
    Abstract: Disclosed are novel tri-substituted aromatic-alkoxylated surface active compounds. Also provided is a method of preparing an aqueous coating composition such as a latex paint including the above components.
    Type: Application
    Filed: March 18, 2015
    Publication date: September 24, 2015
    Inventors: Eugene J. Anderson, JR., Derek Pakenham, Nemesio Martinez-Castro, Jose P. Ruiz, Michael Rhodes, Lichang Zhou
  • Publication number: 20150266980
    Abstract: Disclosed are novel tri-substituted aromatic-alkoxylated polymeric dispersants and related method of preparing. Also disclosed are methods of dispersing at least one pigment comprising the following steps: contacting an aqueous solution containing at least one pigment with the polymeric dispersant copolymers as described herein.
    Type: Application
    Filed: March 18, 2015
    Publication date: September 24, 2015
    Applicant: RHODIA OPERATIONS
    Inventors: Nemesio MARTINEZ-CASTRO, Lichang ZHOU, Eugene J. ANDERSON, Brian VEST
  • Publication number: 20150038635
    Abstract: An anti-settling additive, compositions containing anti-settling additives and methods for use, the additive containing a monomer or polymer compound that contains at least one polymerizable functional group per molecule, and at least one bicycloheptyl-, bicycloheptenyl-, or branched (C5-C42)alkyl-polyether radical per molecule, wherein the bicycloheptyl- or bicycloheptenyl-polyether radical may optionally be substituted on one or more of the ring carbon atoms by one or two (C1-C6)alkyl groups per ring carbon atom is useful in making polymers.
    Type: Application
    Filed: October 20, 2014
    Publication date: February 5, 2015
    Applicant: RHODIA OPERATIONS
    Inventors: Nemesio MARTINEZ-CASTRO, Herve ADAM, Lichang ZHOU, Jose RUIZ, Pierre HENNAUX