Patents by Inventor Weibin Cui

Weibin 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).

  • MULTILAYER SYSTEMS AND METHODS OF MAKING MULTILAYER SYSTEMS
    Publication number: 20220134723
    Abstract: Methods of making multilayer systems comprising a sealant layer by extruding a coreactive sealant composition are disclosed. The methods can be used to fabricate multilayer systems in which individual layers have different cured properties. Individual layers can also have an inhomogeneous concentration of one or more constituents within a layer. The multilayer systems can be made using three-dimensional printing that facilitate the use of a wide range of coreactive compositions.
    Type: Application
    Filed: February 10, 2020
    Publication date: May 5, 2022
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Cynthia Kutchko, Michael A. Bubas, Bryan W. Wilkinson, Eric S. Epstein, Weibin Cui, Renhe Lin
  • Sulfur-containing poly(alkenyl) ethers, prepolymers incorporating sulfur-containing poly(alkenyl) ethers, and uses thereof
    Patent number: 11236201
    Abstract: Sulfur-containing poly(alkenyl) ethers can be incorporated into the backbone of polythioether prepolymers and can be used as curing agents in thiol-terminated polythioether prepolymer compositions. Cured sealants prepared using compositions containing sulfur-containing poly(alkenyl) ether-containing polythioether prepolymers and/or sulfur-containing poly(alkenyl) ether curing agents exhibit improved physical properties suitable for use in aerospace sealant applications.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: February 1, 2022
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Weibin Cui, Renhe Lin
  • Hydraulic fluid and fuel resistant sealants
    Patent number: 11111422
    Abstract: Compositions that are resistant to hydraulic fluid and aviation fuel contain sulfur-containing prepolymers and solvent-resistant organic fillers. The compositions are useful in aerospace sealant applications.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: September 7, 2021
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Renhe Lin, Weibin Cui
  • Chemically resistant sealant compositions and uses thereof
    Patent number: 11015097
    Abstract: Chemically resistant sealant compositions include high equivalent weight sulfur-containing prepolymers. Upon exposure to chemicals the properties of sealants prepared using the prepolymers exhibit excellent fuel and phosphate ester resistance.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: May 25, 2021
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Weibin Cui, Juexiao Cai, Renhe Lin
  • CHEMICALLY RESISTANT SEALANT COMPOSITIONS AND USES THEREOF
    Publication number: 20200283663
    Abstract: Chemically resistant sealant compositions include high equivalent weight sulfur-containing prepolymers. Upon exposure to chemicals the properties of sealants prepared using the prepolymers exhibit excellent fuel and phosphate ester resistance.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 10, 2020
    Inventors: WEIBIN CUI, JUEXIAO CAI, RENHE LIN
  • HYDRAULIC FLUID AND FUEL RESISTANT SEALANTS
    Publication number: 20200172777
    Abstract: Compositions that are resistant to hydraulic fluid and aviation fuel contain sulfur-containing prepolymers and solvent-resistant organic fillers. The compositions are useful in aerospace sealant applications.
    Type: Application
    Filed: February 5, 2020
    Publication date: June 4, 2020
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Renhe Lin, Weibin Cui
  • Prepolymers exhibiting rapid development of physical properties
    Patent number: 10597360
    Abstract: Hydroxyl-containing bis(alkenyl) ethers can be incorporated into the backbone of polythioether prepolymers and can be used as curing agents in thiol-terminated polythioether prepolymer compositions. Cured sealants prepared using compositions containing hydroxyl-containing bis(alkenyl) ether-containing polythioether prepolymers and/or hydroxyl-containing bis(alkenyl) ether curing agents exhibit improved physical properties such as rapid curing and compatibility with fillers suitable for use in aerospace sealant applications.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: March 24, 2020
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Weibin Cui, Renhe Lin
  • Hydraulic fluid and fuel resistant sealants
    Patent number: 10597565
    Abstract: Compositions that are resistant to hydraulic fluid and aviation fuel contain sulfur-containing prepolymers and solvent-resistant organic fillers. The compositions are useful in aerospace sealant applications.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: March 24, 2020
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Renhe Lin, Weibin Cui
  • SULFUR-CONTAINING POLY(ALKENYL) ETHERS, PREPOLYMERS INCORPORATING SULFUR-CONTAINING POLY(ALKENYL) ETHERS, AND USES THEREOF
    Publication number: 20190382532
    Abstract: Sulfur-containing poly(alkenyl) ethers can be incorporated into the backbone of polythioether prepolymers and can be used as curing agents in thiol-terminated polythioether prepolymer compositions. Cured sealants prepared using compositions containing sulfur-containing poly(alkenyl) ether-containing polythioether prepolymers and/or sulfur-containing poly(alkenyl) ether curing agents exhibit improved physical properties suitable for use in aerospace sealant applications.
    Type: Application
    Filed: November 3, 2017
    Publication date: December 19, 2019
    Applicant: PRC-DeSoto International, Inc.
    Inventors: WEIBIN CUI, RENHE LIN
  • Urethane/urea-containing bis(alkenyl) ethers, prepolymers prepared using urethane/urea-containing bis(alkenyl) ethers, and uses thereof
    Patent number: 10370561
    Abstract: Urethane/urea-containing bis(alkenyl) ethers can be incorporated into the backbone of polythioether prepolymers and can be used as curing agents in thiol-terminated polythioether prepolymer compositions. Cured sealants prepared using compositions containing urethane/urea-containing bis(alkenyl) ether-containing polythioether prepolymers and/or urethane/urea-containing bis(alkenyl) ether curing agents exhibit improved physical properties suitable for use in aerospace sealant applications.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: August 6, 2019
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Weibin Cui, Renhe Lin
  • Delayed curing catalysts for thiol/epoxy reactions
    Patent number: 10273391
    Abstract: Thiol-terminated polythioether compositions and sealants exhibit an extended working time and rapidly cure at room temperature at the end of the working time are disclosed. The compositions comprise a combination of pyridine catalysts.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: April 30, 2019
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Weibin Cui, Renhe Lin
  • HYDRAULIC FLUID AND FUEL RESISTANT SEALANTS
    Publication number: 20190010370
    Abstract: Compositions that are resistant to hydraulic fluid and aviation fuel contain sulfur-containing prepolymers and solvent-resistant organic fillers. The compositions are useful in aerospace sealant applications.
    Type: Application
    Filed: July 7, 2017
    Publication date: January 10, 2019
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Renhe Lin, Weibin Cui
  • Rare-earth nanocomposite magnet
    Patent number: 10090090
    Abstract: The invention provides a nanocomposite magnet, which has achieved high coercive force and high residual magnetization. The magnet is a non-ferromagnetic phase that is intercalated between a hard magnetic phase with a rare-earth magnet composition and a soft magnetic phase, wherein the non-ferromagnetic phase reacts with neither the hard nor soft magnetic phase. A hard magnetic phase contains Nd2Fe14B, a soft magnetic phase contains Fe or Fe2Co, and a non-ferromagnetic phase contains Ta. The thickness of the non-ferromagnetic phase containing Ta is 5 nm or less, and the thickness of the soft magnetic phase containing Fe or Fe2Co is 20 nm or less. Nd, or Pr, or an alloy of Nd and any one of Cu, Ag, Al, Ga, and Pr, or an alloy of Pr and any one of Cu, Ag, Al, and Ga is diffused into a grain boundary phase of the hard magnetic phase of Nd2Fe14B.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: October 2, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Hidefumi Kishimoto, Noritsugu Sakuma, Masao Yano, Weibin Cui, Yukiko Takahashi, Kazuhiro Hono
  • DELAYED CURING CATALYSTS FOR THIOL/EPOXY REACTIONS
    Publication number: 20180194979
    Abstract: Thiol-terminated polythioether compositions and sealants exhibit an extended working time and rapidly cure at room temperature at the end of the working time are disclosed. The compositions comprise a combination of pyridine catalysts.
    Type: Application
    Filed: January 11, 2017
    Publication date: July 12, 2018
    Inventors: WEIBIN CUI, RENHE LIN
  • PREPOLYMERS EXHIBITING RAPID DEVELOPMENT OF PHYSICAL PROPERTIES
    Publication number: 20180155280
    Abstract: Hydroxyl-containing bis(alkenyl) ethers can be incorporated into the backbone of polythioether prepolymers and can be used as curing agents in thiol-terminated polythioether prepolymer compositions. Cured sealants prepared using compositions containing hydroxyl-containing bis(alkenyl) ether-containing polythioether prepolymers and/or hydroxyl-containing bis(alkenyl) ether curing agents exhibit improved physical properties such as rapid curing and compatibility with fillers suitable for use in aerospace sealant applications.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 7, 2018
    Inventors: Weibin Cui, Renhe Lin
  • Prepolymers exhibiting rapid development of physical properties
    Patent number: 9920006
    Abstract: Hydroxyl-containing bis(alkenyl) ethers can be incorporated into the backbone of polythioether prepolymers and can be used as curing agents in thiol-terminated polythioether prepolymer compositions. Cured sealants prepared using compositions containing hydroxyl-containing bis(alkenyl) ether-containing polythioether prepolymers and/or hydroxyl-containing bis(alkenyl) ether curing agents exhibit improved physical properties such as rapid curing and compatibility with fillers suitable for use in aerospace sealant applications.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: March 20, 2018
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Weibin Cui, Renhe Lin
  • RARE-EARTH NANOCOMPOSITE MAGNET
    Publication number: 20180040404
    Abstract: The invention provides a nanocomposite magnet, which has achieved high coercive force and high residual magnetization. The magnet is a non-ferromagnetic phase that is intercalated between a hard magnetic phase with a rare-earth magnet composition and a soft magnetic phase, wherein the non-ferromagnetic phase reacts with neither the hard nor soft magnetic phase. A hard magnetic phase contains Nd2Fe14B, a soft magnetic phase contains Fe or Fe2Co, and a non-ferromagnetic phase contains Ta. The thickness of the non-ferromagnetic phase containing Ta is 5 nm or less, and the thickness of the soft magnetic phase containing Fe or Fe2Co is 20 nm or less. Nd, or Pr, or an alloy of Nd and any one of Cu, Ag, Al, Ga, and Pr, or an alloy of Pr and any one of Cu, Ag, Al, and Ga is diffused into a grain boundary phase of the hard magnetic phase of Nd2Fe14B.
    Type: Application
    Filed: October 16, 2017
    Publication date: February 8, 2018
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Hidefumi KISHIMOTO, Noritsugu SAKUMA, Masao YANO, Weibin CUI, Yukiko TAKAHASHI, Kazuhiro HONO
  • URETHANE/UREA-CONTAINING BIS(ALKENYL) ETHERS, PREPOLYMERS PREPARED USING URETHANE/UREA-CONTAINING BIS(ALKENYL) ETHERS, AND USES THEREOF
    Publication number: 20170369737
    Abstract: Urethane/urea-containing bis(alkenyl) ethers can be incorporated into the backbone of polythioether prepolymers and can be used as curing agents in thiol-terminated polythioether prepolymer compositions. Cured sealants prepared using compositions containing urethane/urea-containing bis(alkenyl) ether-containing polythioether prepolymers and/or urethane/urea-containing bis(alkenyl) ether curing agents exhibit improved physical properties suitable for use in aerospace sealant applications.
    Type: Application
    Filed: June 28, 2016
    Publication date: December 28, 2017
    Applicant: PRC-DeSoto International, Inc.
    Inventors: WEIBIN CUI, RENHE LIN
  • PREPOLYMERS EXHIBITING RAPID DEVELOPMENT OF PHYSICAL PROPERTIES
    Publication number: 20170369432
    Abstract: Hydroxyl-containing bis(alkenyl) ethers can be incorporated into the backbone of polythioether prepolymers and can be used as curing agents in thiol-terminated polythioether prepolymer compositions. Cured sealants prepared using compositions containing hydroxyl-containing bis(alkenyl) ether-containing polythioether prepolymers and/or hydroxyl-containing bis(alkenyl) ether curing agents exhibit improved physical properties such as rapid curing and compatibility with fillers suitable for use in aerospace sealant applications.
    Type: Application
    Filed: June 28, 2016
    Publication date: December 28, 2017
    Inventors: WEIBIN CUI, RENHE LIN
  • Rare-earth nanocomposite magnet
    Patent number: 9818520
    Abstract: The invention provides a nanocomposite magnet, which has achieved high coercive force and high residual magnetization. The magnet is a non-ferromagnetic phase that is intercalated between a hard magnetic phase with a rare-earth magnet composition and a soft magnetic phase, wherein the non-ferromagnetic phase reacts with neither the hard nor soft magnetic phase. A hard magnetic phase contains Nd2Fe14B, a soft magnetic phase contains Fe or Fe2Co, and a non-ferromagnetic phase contains Ta. The thickness of the non-ferromagnetic phase containing Ta is 5 nm or less, and the thickness of the soft magnetic phase containing Fe or Fe2Co is 20 nm or less. Nd, or Pr, or an alloy of Nd and any one of Cu, Ag, Al, Ga, and Pr, or an alloy of Pr and any one of Cu, Ag, Al, and Ga is diffused into a grain boundary phase of the hard magnetic phase of Nd2Fe14B.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: November 14, 2017
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Hidefumi Kishimoto, Noritsugu Sakuma, Masao Yano, Weibin Cui, Yukiko Takahashi, Kazuhiro Hono