Patents by Inventor Hailiang Wang

Hailiang Wang 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: 7329715
    Abstract: A process including forming a siloxane oligomer from a mixture including at least one alkoxysilane, at least one phase transfer catalyst, and water, and adding at least one latent curing catalyst to the siloxane oligomer to form a coating composition is described. Also described is a process for producing a rapidly cured abrasion resistant coating, including providing a coating composition including a siloxane oligomer and a thermal latent curing catalyst, applying the coating composition to an article, and curing the coating composition for less than about 10 minutes to form a coating that has a Bayer ratio of abrasion resistance of at least about 2.0. A coating composition including at least one siloxane oligomer, at least one phase transfer catalyst, and at least one latent curing catalyst is also described.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: February 12, 2008
    Assignee: Yazaki Corporation
    Inventors: Hailiang Wang, Zhibang Jim Duan, Satyabrata Raychaudhuri
  • Patent number: 7329716
    Abstract: A process for forming a siloxane oligomer from a mixture comprising at least one alkoxysilane, at least one phase transfer catalyst having a specified structure, and water is described.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: February 12, 2008
    Assignee: Yazaki Corporation
    Inventors: Hailiang Wang, Zhibang Jim Duan, Satyabrata Raychaudhuri
  • Patent number: 7138483
    Abstract: The energy levels (HOMO, LUMO) of the conjugated polymer are tuned independently, so that an energy match on both sides of the device can be accomplished while keeping the emission color in the blue region. Such polymers can be formed by polymerization of a mixture of monomers. The mixture of the monomers contains at least one monomer having an electron-deficient group sandwiched by two aromatic hydrocarbon groups (“Monomer (I)”) and at least one hole transporting (“HT”) monomer. The mixture of monomers may also contain a solubility enhancement (“SE”) monomer and/or a Branching Monomer. Such polymers can be used in fabricating light emitting diodes to achieve some of the best device performance to date including high efficiency and blue color purity.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: November 21, 2006
    Assignees: E.I. du Pont de Nemours and Company, DuPont Displays, Inc.
    Inventors: Hailiang Wang, Frank P. Uckert, Sunghan Kim
  • Patent number: 7132174
    Abstract: Different formulations of copolymers can be used to adjust or “tune” the energy levels (HOMO and LUMO) and the color of light emitted by an organic electronic device. The copolymer may principally include of electron-rich and electron-deficient monomeric units whose composition and number are chose to optimize the efficiency of the device. A relatively smaller amount of fluorophore monomeric units may also be used to adjust the emission wavelength. The copolymer can be used in displays and potentially other electronic devices.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: November 7, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hailiang Wang, Gang Yu
  • Publication number: 20060235178
    Abstract: A process including forming a siloxane oligomer from a mixture including at least one alkoxysilane, at least one phase transfer catalyst, and water, and adding at least one latent curing catalyst to the siloxane oligomer to form a coating composition is described. Also described is a process for producing a rapidly cured abrasion resistant coating, including providing a coating composition including a siloxane oligomer and a thermal latent curing catalyst, applying the coating composition to an article, and curing the coating composition for less than about 10 minutes to form a coating that has a Bayer ratio of abrasion resistance of at least about 2.0. A coating composition including at least one siloxane oligomer, at least one phase transfer catalyst, and at least one latent curing catalyst is also described.
    Type: Application
    Filed: April 18, 2005
    Publication date: October 19, 2006
    Inventors: Hailiang Wang, Zhibang Duan, Satyabrata Raychaudhuri
  • Publication number: 20060235179
    Abstract: A process for forming a siloxane oligomer from a mixture comprising at least one alkoxysilane, at least one phase transfer catalyst having a specified structure, and water is described.
    Type: Application
    Filed: April 18, 2005
    Publication date: October 19, 2006
    Inventors: Hailiang Wang, Zhibang Duan, Satyabrata Raychaudhuri
  • Patent number: 7105633
    Abstract: This invention discloses a class of soluble poly(arylene-oxadiazole) polymers and copolymers comprising at least 20 repeat units, which may be the same or different, represented by the formula: wherein Arom can be a fluorene group, an aromatic hydrocarbon ring, an aromatic C2+ heterocyclic ring, or two aromatic rings linked by a single bond, ethenyl bond, or ethynyl bond. A process for preparing the polymers and copolymers by reacting dicarboxylic acids and hydrazine salt is provided. The polymers are useful in electroluminescent devices, photovoltaic cells, and diodes.
    Type: Grant
    Filed: January 4, 2005
    Date of Patent: September 12, 2006
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Hailiang Wang, Gang Yu, Gordana Srdanov
  • Publication number: 20050156516
    Abstract: This invention discloses a class of soluble poly(arylene-oxadiazole) polymers and copolymers comprising at least 20 repeat units, which may be the same or different, represented by the formula: wherein Arom can be a fluorene group, an aromatic hydrocarbon ring, an aromatic C2+ heterocyclic ring, or two aromatic rings linked by a single bond, ethenyl bond, or ethynyl bond. A process for preparing the polymers and copolymers by reacting dicarboxylic acids and hydrazine salt is provided. The polymers are useful in electroluminescent devices, photovoltaic cells, and diodes.
    Type: Application
    Filed: January 4, 2005
    Publication date: July 21, 2005
    Inventors: Hailiang Wang, Gang Yu, Gordana Srdanov
  • Patent number: 6864352
    Abstract: This invention discloses a class of soluble poly(arylene-oxadiazole) polymers and copolymers comprising at least 20 repeat units, which may be the same or different, represented by the formula: wherein Arom can be a fluorene group, an aromatic hydrocarbon ring, an aromatic C2+ heterocyclic ring, or two aromatic rings linked by a single bond, ethenyl bond, or ethynyl bond. A process for preparing the polymers and copolymers by reacting dicarboxylic acids and hydrazine salt is provided. The polymers are useful in electroluminescent devices, photovoltaic cells, and diodes.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: March 8, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hailiang Wang, Gang Yu, Gordana Srdanov
  • Publication number: 20040192871
    Abstract: The energy levels (HOMO, LUMO) of the conjugated polymer are tuned independently, so that an energy match on both sides of the device can be accomplished while keeping the emission color in the blue region. Such polymers can be formed by polymerization of a mixture of monomers. The mixture of the monomers contains at least one monomer having an electron-deficient group sandwiched by two aromatic hydrocarbon groups (“Monomer (I)”) and at least one hole transporting (“HT”) monomer. The mixture of monomers may also contain a solubility enhancement (“SE”) monomer and/or a Branching Monomer. Such polymers can be used in fabricating light emitting diodes to achieve some of the best device performance to date including high efficiency and blue color purity.
    Type: Application
    Filed: February 3, 2004
    Publication date: September 30, 2004
    Inventors: Hailiang Wang, Frank P. Uckert, Sunghan Kim
  • Publication number: 20040038075
    Abstract: Different formulations of copolymers can be used to adjust or “tune” the energy levels (HOMO and LUMO) and the color of light emitted by an organic electronic device. The copolymer may principally include of electron-rich and electron-deficient monomeric units whose composition and number are chose to optimize the efficiency of the device. A relatively smaller amount of fluorophore monomeric units may also be used to adjust the emission wavelength. The copolymer can be used in displays and potentially other electronic devices.
    Type: Application
    Filed: May 27, 2003
    Publication date: February 26, 2004
    Inventors: Hailiang Wang, Gang Yu
  • Publication number: 20030023029
    Abstract: This invention discloses a class of soluble poly(arylene-oxadiazole) polymers and copolymers comprising at least 20 repeat units, which may be the same or different, represented by the formula: 1
    Type: Application
    Filed: June 20, 2002
    Publication date: January 30, 2003
    Inventors: Hailiang Wang, Gang Yu, Gordana Srdanov