Patents by Inventor Changqing Lu

Changqing Lu 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: 11923497
    Abstract: Described herein, are battery separators, comprising the following: a microporous polymeric film; and an optional coating layer on at least one side of the microporous polymeric film, wherein at least one of the microporous polymeric film and the optional coating comprises an additive. The additive is selected from the group consisting of a lubricating agent, a plasticizing agent, a nucleating agent, a shrinkage reducing agent, a surfactant, an SEI improving agent, a cathode protection agent, a flame retardant additive, LiPF6 salt stabilizer, an overcharge protector, an aluminum corrosion inhibitor, a lithium deposition agent or improver, or a solvation enhancer, an aluminum corrosion inhibitor, a wetting agent, and a viscosity improver. Also, described herein are batteries, including lithium-ion batteries, comprising one or more of the described separators. Methods for making the battery separators are also described.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: March 5, 2024
    Assignee: Celgard, LLC
    Inventors: Changqing Wang Adams, Kang Karen Xiao, Stefan Reinartz, Masaaki Okada, Brian R. Stepp, Yao Lu, Eric Robert White, Katharine Chemelewski
  • Publication number: 20240071451
    Abstract: The three-state spintronic device includes: a bottom electrode, a magnetic tunnel junction and a top electrode from bottom to top. The magnetic tunnel junction includes: a spin-orbit coupling layer, a ferromagnetic free layer, a barrier tunneling layer, a ferromagnetic reference layer, three local magnetic domain wall pinning centers and domain wall nucleation centers. An antisymmetric exchange interaction is modulated, and the magnetic domain wall pinning centers are embedded in an interface between a heavy metal and the ferromagnetic free layer. The magnetic domain wall nucleation centers are at two ends of the ferromagnetic free layer. A current pulse flows through the spin-orbit coupling layer to generate a spin current and the spin current is injected into the ferromagnetic free layer. Under a control of all-electrical controlled, an effective field of a spin-orbit torque drives domain wall to move and displace.
    Type: Application
    Filed: January 21, 2021
    Publication date: February 29, 2024
    Inventors: Huai LIN, Guozhong XING, Zuheng WU, Long LIU, Di WANG, Cheng LU, Peiwen ZHANG, Changqing XIE, Ling LI, Ming LIU
  • Patent number: 11033027
    Abstract: A copolymer comprising trans-1,3,3,3-tetrafluoropropene units and vinylidene fluoride units, and methods of making the same. A method of preventing biofouling on an article of manufacture, comprising applying such copolymer to the article of manufacture. A process of preparing a surface having a surface energy of between about 20 and about 30 mJ/m2, comprising applying such a copolymer to a support. A method of preventing accumulation of ice on an article of manufacture, comprising applying such a copolymer to an article of manufacture. A method of preparing a polymer, comprising a step of adding trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer as a polymer processing additive/aid to said polymer.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: June 15, 2021
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Changqing Lu, Andrew J. Poss, Rajiv R. Singh, David Nalewajek, Cheryl Cantion
  • Patent number: 10968298
    Abstract: Disclosed are aqueous emulsion copolymerization processes for synthesizing 2,3,3,3-tetrafluoropropene/vinylidene fluoride copolymers having 2,3,3,3-tetrafluoropropene as the major monomer unit. The copolymerization process is performed at temperatures of from about 55° C. to about 70° C. with at least one water soluble radical initiator, with preferred initiators including Na2S2O8, K2S2O8, (NH4)2S2O8, Fe2(S2O8)3, K2S2O8/FeSO4, (NH4)2S2O8/Fe2O4, and the like, as well as combinations thereof.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: April 6, 2021
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Changqing Lu, Andrew J. Poss, Rajiv R. Singh, David Nalewajek, Cheryl Cantlon
  • Patent number: 10752716
    Abstract: Disclosed are copolymers and terpolymers chlorotrifluoroethylene and vinyl chloride having improved properties, and particularly a high glass transition temperature, for use in membranes, coatings, barrier films, and other applications and process for forming such copolymers and terpolymers, which are useful in reverse osmosis desalination, nanofiltration, ultrafiltration, microfiltration, membrane distillation, pervaporation, selective gas separation, batteries and fuel cells.
    Type: Grant
    Filed: May 12, 2018
    Date of Patent: August 25, 2020
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Changqing Lu, Pascal Bolomey, Rajiv Ratna Singh, Paul Todaro
  • Publication number: 20190071585
    Abstract: The present invention generally relates to a novel polymeric material formed, at least in part, from monomeric material comprising 2,3,3,3-tetrafluoropropene (CF3CF?CH2, 1234yf), to polymeric compositions, to coating compositions, and to uses thereof.
    Type: Application
    Filed: November 2, 2018
    Publication date: March 7, 2019
    Inventors: DAVID NALEWAJEK, ANDREW J. POSS, CHERYL CANTLON, RAJIV R. SINGH, CHANGQING LU, THOMAS CANTIE
  • Publication number: 20180371133
    Abstract: In accordance with the present invention, aqueous emulsion polymerization processes of synthesizing 2,3,3,3-tetrafluoropropene/vinylidene fluoride copolymers having 2,3,3,3-tetrafluoropropene as the major monomer unit are provided.
    Type: Application
    Filed: March 27, 2018
    Publication date: December 27, 2018
    Inventors: Changqing Lu, Andrew J. Poss, Rajiv R. Singh, David Nalewajek, Cheryl Cantlon
  • Publication number: 20180343858
    Abstract: A copolymer comprising trans-1,3,3,3-tetrafluoropropene units and vinylidene fluoride units, and methods of making the same. A method of preventing biofouling on an article of manufacture, comprising applying such copolymer to the article of manufacture. A process of preparing a surface having a surface energy of between about 20 and about 30 mJ/m2, comprising applying such a copolymer to a support. A method of preventing accumulation of ice on an article of manufacture, comprising applying such a copolymer to an article of manufacture. A method of preparing a polymer, comprising a step of adding trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer as a polymer processing additive/aid to said polymer.
    Type: Application
    Filed: August 22, 2018
    Publication date: December 6, 2018
    Inventors: Changqing Lu, Andrew J. Poss, Rajiv R. Singh, David Nalewajek, Cheryl Cantlon
  • Publication number: 20180334519
    Abstract: Disclosed are copolymers and terpolymers chlorotrifluoroethylene and vinyl chloride having improved properties, and particularly a high glass transition temperature, for use in membranes, coatings, barrier films, and other applications and process for forming such copolymers and terpolymers, which are useful in reverse osmosis desalination, nanofiltration, ultrafiltration, microfiltration, membrane distillation, pervaporation, selective gas separation, batteries and fuel cells.
    Type: Application
    Filed: May 12, 2018
    Publication date: November 22, 2018
    Inventors: Changqing Lu, Pascal Bolomey, Rajiv Ratna Singh, Paul Todaro
  • Publication number: 20180142379
    Abstract: Fibers and methods of producing fibers comprising fluorinated polymers having comonomers of tetrafluoropropene are provided. Methods may include providing a solution having a fluorinated polymer dissolved in a solvent, wherein at least one monomer of the polymer comprises a tetrafluoropropene, exposing the solution to an electrostatic field between the solution and a collection electrode, and forming fibers from the solution fluorinated polymer. Fibers may include a fluorinated polymer, wherein at least one of the monomers of the fluorinated polymer comprises tetrafluoropropene.
    Type: Application
    Filed: November 3, 2017
    Publication date: May 24, 2018
    Inventors: Andrew J. Poss, David Nalewajek, Cheryl L. Cantlon, Changqing Lu, Shiming Wo
  • Patent number: 9963531
    Abstract: In accordance with the present invention, aqueous emulsion polymerization processes of synthesizing 2,3,3,3-tetrafluoropropene/vinylidene fluoride copolymers having 2,3,3,3-tetrafluoropropene as the major monomer unit are provided.
    Type: Grant
    Filed: April 2, 2016
    Date of Patent: May 8, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Changqing Lu, Andrew J. Poss, Rajiv R. Singh, David Nalewajek, Cheryl Cantlon
  • Publication number: 20180008938
    Abstract: The present invention generally relates to polymeric membrane materials formed, at least in part, from monomeric material selected from 2,3,3,3-tetrafluoropropene (CF3CF=CH2, HF0-1234y0 or trans-1,3,3,3-tetrafluoropropene (CF3CH=CFH, HFO-1234ze), and to membrane preparations and uses thereof in water desalination, filtration, membrane distillation, pervaporation, and selective gas separation.
    Type: Application
    Filed: September 22, 2017
    Publication date: January 11, 2018
    Inventors: Changqing Lu, Andrew J. Poss, Rajiv R. Singh
  • Patent number: 9782730
    Abstract: The present invention generally relates to polymeric membrane materials formed, at least in part, from monomeric material selected from 2,3,3,3-tetrafluoropropene (CF3CF?CH2, HFO-1234yf) or trans-1,3,3,3-tetrafluoropropene (CF3CH?CFH, HFO-1234ze), and to membrane preparations and uses thereof in water desalination, filtration, membrane distillation, pervaporation, and selective gas separation.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: October 10, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Changqing Lu, Andrew J. Poss, Rajiv R. Singh
  • Publication number: 20170240666
    Abstract: The present invention relates to methods of producing polymerized 2,3,3,3-tetrafluoropropene (poly-1234yf) using one or a combination of the techniques provided herein. In certain embodiments, such techniques include (1) emulsion polymerization; (2) suspension polymerization; (3) solution polymerization; (4) supercritical carbon dioxide polymerization; (5) transition metal catalyzed polymerization; (6) radiation or thermal polymerization; and combinations thereof. A wide array of initiators, catalysts, and solvents may be used in such polymerization processes and may include, but are not limited to, (1) radical initiators; (2) ionic initiators; and (3) single-site and multiple-site catalysts.
    Type: Application
    Filed: May 1, 2017
    Publication date: August 24, 2017
    Inventors: CHANGQING LU, ANDREW J. POSS, DAVID NALEWAJEK, CHERYL CANTLON, RAJIV R. SINGH
  • Patent number: 9532567
    Abstract: A copolymer comprising trans-1,3,3,3-tetrafluoropropene units and vinylidene fluoride units, and methods of making the same. A method of preventing biofouling on an article of manufacture, comprising applying such copolymer to the article of manufacture. A process of preparing a surface having a surface energy of between about 20 and about 30 mJ/m2, comprising applying such a copolymer to a support. A method of preventing accumulation of ice on an article of manufacture, comprising applying such a copolymer to an article of manufacture. A method of preparing a polymer, comprising a step of adding trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer as a polymer processing additive/aid to said polymer.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: January 3, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Changqing Lu, Andrew J. Poss, Rajiv R. Singh, David Nalewajek, Cheryl Cantlon
  • Publication number: 20160362511
    Abstract: A copolymer comprising trans-1,3,3,3-tetrafluoropropene units and vinylidene fluoride units, and methods of making the same. A method of preventing biofouling on an article of manufacture, comprising applying such copolymer to the article of manufacture. A process of preparing a surface having a surface energy of between about 20 and about 30 mJ/m2, comprising applying such a copolymer to a support. A method of preventing accumulation of ice on an article of manufacture, comprising applying such a copolymer to an article of manufacture. A method of preparing a polymer, comprising a step of adding trans-1,3,3,3-tetrafluoropropene/vinylidene fluoride copolymer as a polymer processing additive/aid to said polymer.
    Type: Application
    Filed: August 24, 2016
    Publication date: December 15, 2016
    Inventors: Changqing Lu, Andrew J. Poss, Rajiv R. Singh, David Nalewajek, Cheryl Cantlon
  • Publication number: 20160215081
    Abstract: In accordance with the present invention, aqueous emulsion polymerization processes of synthesizing 2,3,3,3-tetrafluoropropene/vinylidene fluoride copolymers having 2,3,3,3-tetrafluoropropene as the major monomer unit are provided.
    Type: Application
    Filed: April 2, 2016
    Publication date: July 28, 2016
    Inventors: Changqing Lu, Andrew J. Poss, Rajiv R. Singh, David Nalewajek, Cheryl Cantlon
  • Patent number: 9321867
    Abstract: In accordance with the present invention, aqueous emulsion polymerization processes of synthesizing 2,3,3,3-tetrafluoropropene/vinylidene fluoride copolymers having 2,3,3,3-tetrafluoropropene as the major monomer unit are provided.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: April 26, 2016
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Changqing Lu, Andrew J. Poss, Rajiv R. Singh, David Nalewajek, Cheryl Cantlon
  • Patent number: 9023962
    Abstract: A process of synthesizing poly(2,3,3,3-tetrafluoropropene), comprising reacting 2,3,3,3-tetrafluoropropene monomers in a reaction medium in the presence of an initiator, wherein the initiator is added to the reaction medium in multiple portions at different times during the process.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: May 5, 2015
    Assignee: Honeywell International Inc.
    Inventors: Changqing Lu, Andrew J. Poss, Rajiv R. Singh, David Nalewajek, Cheryl Cantlon
  • Publication number: 20140339167
    Abstract: The present invention generally relates to polymeric membrane materials formed, at least in part, from monomeric material selected from 2,3,3,3-tetrafluoropropene (CF3CF?CH2, HFO-1234yf) or trans-1,3,3,3-tetrafluoropropene (CF3CH?CFH, HFO-1234ze), and to membrane preparations and uses thereof in water desalination, filtration, membrane distillation, pervaporation, and selective gas separation.
    Type: Application
    Filed: April 29, 2014
    Publication date: November 20, 2014
    Inventors: Changqing Lu, Andrew J. Poss, Rajiv R. Singh