Patents by Inventor Feina Cao

Feina Cao 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: 9657172
    Abstract: The present invention relates to flame retardant thermoplastic polyurethane (TPU) compositions that are prepared by compounding certain TPU's and with a polyphosphonate homopolymer or copolymer, and more specifically TPU compositions that pass ASTM E84 Class 1 and UL94 V0 ratings. The invention also relates to compositions that further include an inherently dissipative polymer to provide a TPU composition that has flame retardant properties, electrostatic discharge performance, good clarity and/or transparency, or any combination thereof.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: May 23, 2017
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Feina Cao, Greg S. Nestlerode, Qiwei Lu
  • Patent number: 9650514
    Abstract: The present invention relates to electrostatic dissipative polycarbonate compositions that are prepared by combining an aromatic polycarbonate polymer with a thermoplastic polyurethane based inherently dissipative polymer and a compatibilizer component that comprises a second thermoplastic polyurethane. This second thermoplastic polyurethane is a reaction product of (a) at least one polyol intermediate, (b) at least one diisocyanate, and (c) at least one chain extender, wherein (a), the polyol intermediate comprises a polycaprolactone polyol, a polycarbonate polyol, or combinations thereof.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: May 16, 2017
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Qiwei Lu, Feina Cao
  • Patent number: 9397337
    Abstract: The invention relates to an electrode binder composition, an electrode made using the described binder composition, and an electrochemical cell made using the described electrode, where the all of these materials are made using a composition of a poly(dialkylene ester) thermoplastic polyurethane composition. The electrode is made using the described thermoplastic polyurethane and an electrode active material. The electrochemical cells can be made using the described electrodes and also using (i) membranes and/or separators made using the described poly(dialkylene ester) thermoplastic polyurethane composition; (ii) an electrolyte system based on the described poly(dialkylene ester) thermoplastic polyurethane composition; or (iii) a combination thereof.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: July 19, 2016
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Tesham Gor, Qiwei Lu, Feina Cao
  • Publication number: 20140302398
    Abstract: The invention relates to an electrode binder composition, an electrode made using the described binder composition, and an electrochemical cell made using the described electrode, where the all of these materials are made using a composition of a poly(dialkylene ester) thermoplastic polyurethane composition. The electrode is made using the described thermoplastic polyurethane and an electrode active material. The electrochemical cells can be made using the described electrodes and also using (i) membranes and/or separators made using the described poly(dialkylene ester) thermoplastic polyurethane composition; (ii) an electrolyte system based on the described poly(dialkylene ester) thermoplastic polyurethane composition; or (iii) a combination thereof.
    Type: Application
    Filed: October 24, 2012
    Publication date: October 9, 2014
    Inventors: Tesham Gor, Qiwei Lu, Feina Cao
  • Publication number: 20140287323
    Abstract: The invention relates to a membrane comprising a poly(dialkylene ester) thermoplastic polyurethane composition. The invention also provides an electrochemical cell comprising a positive electrode, a negative electrode, and (I) a separator membrane disposed between said positive and negative electrodes, wherein the said membrane comprises (A) the described poly(dialkylene ester) thermoplastic polyurethane composition.
    Type: Application
    Filed: October 24, 2012
    Publication date: September 25, 2014
    Inventors: Qiwei Lu, Feina Cao, Tesham Gor, Jian Xie, Yadong Liu, Yona Eckstein
  • Publication number: 20140255792
    Abstract: The invention relates to a polymer gel electrolyte system for use in an electrochemical cell having positive and negative electrodes, said electrolyte system comprising: (A) a poly(dialkylene ester) thermoplastic polyurethane composition; (B) an alkali metal salt; and (C) an aprotic organic solvent. The invention also provides an electrochemical cell comprising a positive electrode, a negative electrode, and (I) a polymer electrolyte disposed between said positive and negative electrodes, wherein the polymer electrolyte comprises (A) the poly(dialkylene ester) thermoplastic polyurethane composition; (B) an alkali metal salt; and (C) an aprotic organic solvent.
    Type: Application
    Filed: October 24, 2012
    Publication date: September 11, 2014
    Applicant: Lubrizol Advanced Materials, Inc.
    Inventors: Feina Cao, Tesham Gor, Qiwei Lu, Yona Eckstein, Jian Xie, Donald A. Meltzer
  • Patent number: 8722794
    Abstract: The present invention relates to a melt processable copolyetheramide made by reacting (a) one or more segments of polyamide hard blocks derived from a lactam-terminated diisocyanate and a lactam monomer, and (b) one or more segments of polyether soft blocks derived from a polyether diol. The invention further provides for methods of making said copolyetheramide, including a continuous extruder method of production.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: May 13, 2014
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Umit G. Makal, Bryce W. Steinmetz, Roger W. Day, Feina Cao
  • Publication number: 20140031478
    Abstract: The present invention relates to electrostatic dissipative polycarbonate compositions that are prepared by combining an aromatic polycarbonate polymer with a thermoplastic polyurethane based inherently dissipative polymer and a compatibilizer component that comprises a second thermoplastic polyurethane. This second thermoplastic polyurethane is a reaction product of (a) at least one polyol intermediate, (b) at least one diisocyanate, and (c) at least one chain extender, wherein (a), the polyol intermediate comprises a polycaprolactone polyol, a polycarbonate polyol, or combinations thereof.
    Type: Application
    Filed: April 19, 2012
    Publication date: January 30, 2014
    Applicant: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventors: Qiwei Lu, Feina Cao
  • Publication number: 20130310505
    Abstract: The present invention relates to flame retardant thermoplastic polyurethane (TPU) compositions that are prepared by compounding certain TPU's and with a polyphosphonate homopolymer or copolymer, and more specifically TPU compositions that pass ASTM E84 Class 1 and UL94 V0 ratings. The invention also relates to compositions that further include an inherently dissipative polymer to provide a TPU composition that has flame retardant properties, electrostatic discharge performance, good clarity and/or transparency, or any combination thereof.
    Type: Application
    Filed: February 29, 2012
    Publication date: November 21, 2013
    Applicant: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventors: Feina Cao, Greg S. Nestlerode, Qiwei Lu
  • Publication number: 20110213076
    Abstract: The present invention relates to a melt processable copolyetheramide made by reacting (a) one or more segments of polyamide hard blocks derived from a lactam-terminated diisocyanate and a lactam monomer, and (b) one or more segments of polyether soft blocks derived from a polyether diol. The invention further provides for methods of making said copolyetheramide, including a continuous extruder method of production.
    Type: Application
    Filed: February 24, 2011
    Publication date: September 1, 2011
    Applicant: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventors: Umit G. Makal, Bryce W. Steinmetz, Roger W. Day, Feina Cao