Patents by Inventor Chuntao Cao

Chuntao 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: 7575847
    Abstract: Antireflective films and low refractive index compositions are described. The low refractive index layer comprises the reaction product of a composition comprising at least one free-radically polymerizable material having a high fluorine content, and at least one free-radically polymerizable fluoropolyether urethane material.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: August 18, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Naiyong Jing, Thomas P. Klun, Chuntao Cao, William D. Coggio, Zai-Ming Qiu
  • Patent number: 7537828
    Abstract: Antireflective films and low refractive index compositions are described. The low refractive index layer comprises the reaction product of a composition comprising at least one free-radically polymerizable material having a high fluorine content, and at least one free-radically polymerizable fluoropolyether urethane material.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: May 26, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: William D. Coggio, Thomas P. Klun, Chuntao Cao
  • Patent number: 7473462
    Abstract: A low refractive index composition that forms a low refractive index layer on an optical display is formed having a co-crosslinked interpenetrating polymer network of a fluoropolymer phase and an acrylate phase. The fluoropolymer phase is preferably formed from fluoropolymers based on THV or FKM and having either a degree of unsaturation and/or containing a reactive cure site monomer in its polymer backbone. The acrylate phase includes a multifunctional acrylate crosslinker, and more preferably includes a perfluoropolyether acrylate crosslinker. The formed low refractive index layer has improved interfacial adhesion to other layers or substrates contained in the optical display. Further, the mechanical strength and scratch resistance of the either of above low refractive index compositions can be further enhanced through the incorporation of surface functionalized inorganic particle into the formed layer.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: January 6, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: William D. Coggio, Thomas P. Klun, George G. I. Moore, Naiyong Jing, Chuntao Cao, Sharon Wang, Patricia M. Savu, Lan H. Liu, Joan M. Noyola
  • Publication number: 20080107907
    Abstract: A low refractive index composition that forms a low refractive index layer on an optical display is formed having a co-crosslinked interpenetrating polymer network of a fluoropolymer phase and an acrylate phase. The fluoropolymer phase is preferably formed from fluoropolymers based on THV or FKM and having either a degree of unsaturation and/or containing a reactive cure site monomer in its polymer backbone. The acrylate phase includes a multifunctional acrylate crosslinker, and more preferably includes a perfluoropolyether acrylate crosslinker. The formed low refractive index layer has improved interfacial adhesion to other layers or substrates contained in the optical display. Further, the mechanical strength and scratch resistance of the either of above low refractive index compositions can be further enhanced through the incorporation of surface functionalized inorganic particle into the formed layer.
    Type: Application
    Filed: January 10, 2008
    Publication date: May 8, 2008
    Inventors: William Coggio, Thomas Klun, George Moore, Naiyong Jing, Chuntao Cao, Sharon Wang, Patricia Savu, Lan Liu, Joan Noyola
  • Patent number: 7351471
    Abstract: An economic, optically transmissive, stain and ink repellent, durable low refractive index fluoropolymer composition for use in an antireflection film or coupled to an optical display. In one aspect of the invention, the composition is formed from the reaction product of a fluoropolymer and a fluoroalkyl containing multi-olefinic crosslinker. In another aspect of the invention, the composition further includes surface modified inorganic nanoparticles.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: April 1, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Naiyong Jing, Chuntao Cao, Tatsuo Fukushi, Timothy J. Tatge, Christopher B. Walker, Jr., Thomas P. Klun, William J. Schultz, Zai-Ming Qiu
  • Patent number: 7323514
    Abstract: An economic, optically transmissive, stain and ink repellent, durable low refractive index fluoropolymer composition for use in an antireflection film or coupled to an optical display. In one aspect of the invention, the composition is formed from the reaction product of a fluoropolymer or reactive fluoropolymer, an amino silane ester coupling agent or ester equivalent, a multi-olefinic crosslinker, and optional surface modified inorganic particles or sol gel precursors.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: January 29, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Naiyong Jing, Chuntao Cao, Tatsuo Fukushi, Timothy J. Tatge, William D. Coggio, Christopher B. Walker, Jr., Thomas P. Klun, William J. Schultz, Zai-Ming Qiu
  • Publication number: 20070298216
    Abstract: Method of forming a very hydrophobic, extremely hydrophobic or superhydrophobic surface comprising depositing a composition comprising hydrophobic microparticles, hydrophobic nanoparticles, or a mixture thereof and a binder in sufficient quantity to provide a hydrophobic or a superhydrophobic surface on a substrate having a micropatterned surface having raised portions, recessed portions or a combination thereof.
    Type: Application
    Filed: June 23, 2006
    Publication date: December 27, 2007
    Inventors: Naiyong Jing, Kathryn M. Spurgeon, George Van Dyke Tiers, Vivian W. Jones, Brant U. Kolb, Chuntao Cao, Rudolf J. Dams
  • Publication number: 20070287093
    Abstract: Antireflective films and low refractive index compositions are described. The low refractive index layer comprises the reaction product of a composition comprising at least one free-radically polymerizable material having a high fluorine content, and at least one free-radically polymerizable fluoropolyether urethane material.
    Type: Application
    Filed: June 29, 2006
    Publication date: December 13, 2007
    Inventors: Naiyong Jing, Thomas P. Klun, Chuntao Cao, William D. Coggio, Zai-Ming Qiu
  • Publication number: 20070286994
    Abstract: Antireflective films are described having a surface layer comprising a the reaction product of a polymerizable low refractive index composition comprising at least one fluorinated free-radically polymerizable material and surface modified inorganic nanoparticles. A high refractive index layer is coupled to the low refractive index layer. In one emboidiment, the high refractive index layer comprises surface modified inorganic nanoparticles dispersed in a crosslinked organic material. The antireflective film is preferably durable, exhibiting a haze of less than 1.0% after 25 wipes with steel wool using a 3.2 cm mandrel and a mass of 1000 grams.
    Type: Application
    Filed: June 28, 2006
    Publication date: December 13, 2007
    Inventors: Christopher B. Walker, Marc D. Radcliffe, Thomas P. Klun, Lan H. Liu, Richard J. Pokorny, William D. Coggio, Chuntao Cao, Mark J. Pellerite, Paul C. Kelley, Robert J. Fleming
  • Publication number: 20070286992
    Abstract: Antireflective films and low refractive index compositions are described. The low refractive index layer comprises the reaction product of a composition comprising at least one free-radically polymerizable material having a high fluorine content, and at least one free-radically polymerizable fluoropolyether urethane material.
    Type: Application
    Filed: June 13, 2006
    Publication date: December 13, 2007
    Inventors: William D. Coggio, Thomas P. Klun, Chuntao Cao
  • Publication number: 20060148971
    Abstract: A fluoropolymer coating composition contains a homogeneous mixture of crystalline submicron fluoropolymer particles dispersed in a solvent-borne solution of less crystalline or amorphous fluororesin. The composition may be prepared by blending a latex containing crystalline submicron fluoropolymer particles with a latex containing less crystalline or amorphous fluororesin particles, coagulating and drying the blended latices, and dissolving the dried blend in a solvent for the fluororesin particles. Quasi-homogenous compositions may be prepared by blending dry crystalline submicron fluoropolymer particles with a) dry less crystalline or amorphous fluororesin particles and a solvent for the fluororesin particles, or b) a solvent-borne solution of less crystalline or amorphous fluororesin. Rubbing the disclosed coatings can provide a thin, continuous or nearly continuous fluoropolymer surface layer atop a less crystalline or amorphous fluororesin binder containing crystalline submicron fluoropolymer particles.
    Type: Application
    Filed: December 19, 2005
    Publication date: July 6, 2006
    Inventors: Naiyong Jing, Tatsuo Fukushi, Chuntao Cao, Lan Liu, Thomas Klun, William Coggio, Vivian Jones
  • Publication number: 20060147177
    Abstract: An economic, optically transmissive, stain and ink repellent, durable low refractive index fluoropolymer composition for use in an antireflection film or coupled to an optical display. In one aspect of the invention, the composition is formed from the reaction product of a fluoropolymer, a C?C double bond group containing silane ester agent, and an optional multi-olefinic crosslinker. In another aspect of the invention, the composition further includes surface modified inorganic nanoparticles. In another aspect, the multi-olefinic crosslinker is an alkoxysilyl-containing multi-olefinic crosslinker.
    Type: Application
    Filed: December 30, 2004
    Publication date: July 6, 2006
    Inventors: Naiyong Jing, Chuntao Cao, Tatsuo Fukushi, Timothy Tatge, William Coggio, Christopher Walker, Thomas Klun, William Schultz, Zai-Ming Qiu
  • Publication number: 20060148996
    Abstract: A low refractive index composition that forms a low refractive index layer on an optical display is formed having a co-crosslinked interpenetrating polymer network of a fluoropolymer phase and an acrylate phase. The fluoropolymer phase is preferably formed from fluoropolymers based on THV or FKM and having either a degree of unsaturation and/or containing a reactive cure site monomer in its polymer backbone. The acrylate phase includes a multifunctional acrylate crosslinker, and more preferably includes a perfluoropolyether acrylate crosslinker. The formed low refractive index layer has improved interfacial adhesion to other layers or substrates contained in the optical display. Further, the mechanical strength and scratch resistance of the either of above low refractive index compositions can be further enhanced through the incorporation of surface functionalized inorganic particle into the formed layer.
    Type: Application
    Filed: December 30, 2004
    Publication date: July 6, 2006
    Inventors: William Coggio, Thomas Klun, George Moore, Naiyong Jing, Chuntao Cao, Sharon Wang, Patricia Savu, Lan Liu, Joan Noyola
  • Publication number: 20060147723
    Abstract: An economic, optically transmissive, stain and ink repellent, durable low refractive index fluoropolymer composition for use in an antireflection film or coupled to an optical display. In one aspect of the invention, the composition is formed from the reaction product of a fluoropolymer or reactive fluoropolymer, an amino silane ester coupling agent or ester equivalent, a multi-olefinic crosslinker, and optional surface modified inorganic particles or sol gel precursors.
    Type: Application
    Filed: December 30, 2004
    Publication date: July 6, 2006
    Inventors: Naiyong Jing, Chuntao Cao, Tatsuo Fukushi, Timothy Tatge, William Coggio, Christopher Walker, Thomas Klun, William Schultz, Zai-Ming Qiu
  • Publication number: 20050182199
    Abstract: An economic, optically transmissive, stain and ink repellent, durable low refractive index fluoropolymer composition for use in an antireflection film or coupled to an optical display. In one aspect of the invention, the composition is formed from the reaction product of a fluoropolymer and a fluoroalkyl containing multi-olefinic crosslinker. In another aspect of the invention, the composition further includes surface modified inorganic nanoparticles.
    Type: Application
    Filed: December 30, 2004
    Publication date: August 18, 2005
    Inventors: Naiyong Jing, Chuntao Cao, Tatsuo Fukushi, Timothy Tatge, Christopher Walker, Thomas Klun, William Schultz, Zai-Ming Qiu