Patents by Inventor Zhengming Tang

Zhengming Tang 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).

  • POLYURETHANE FOAMS HAVING REDUCED ALDEHYDE EMISSIONS
    Publication number: 20210130562
    Abstract: Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, at least one aminoalcohol compound and least one antioxidant. Foams so produced emit low levels of both formaldehyde and acetaldehyde.
    Type: Application
    Filed: February 16, 2017
    Publication date: May 6, 2021
    Inventors: Jian Zou, Shaoguang Feng, Yoshiaki Miyazaki, Zhengming Tang, Wenbin Yao, Fu Zhan, Degang Zhang, Jiguang Zhang, Ping Zhang
  • POLYURETHANES HAVING LOW LEVELS OF ALDEHYDE EMISSIONS
    Publication number: 20200031983
    Abstract: Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, at least one cyclic 1,3-diketone compound and optionally least one antioxidant. Foams so produced emit low levels of both formaldehyde and acetaldehyde.
    Type: Application
    Filed: February 9, 2017
    Publication date: January 30, 2020
    Inventors: Jian Zou, Shaoguang Feng, Degang Zhang, Jiguang Zhang, Ping Zhang, Wenbin Yao, Yang Zhou, Zhengming Tang
  • POLYURETHANES HAVING REDUCED ALDEHYDE EMISSIONS
    Publication number: 20190367695
    Abstract: Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, at least one polyacetoacetate compound and least one antioxidant. Foams so produced emit low levels of both formaldehyde and acetaldehyde.
    Type: Application
    Filed: February 20, 2017
    Publication date: December 5, 2019
    Inventors: Jiguang Zhang, Shaoguang Feng, Michael T. Malanga, Zhengming Tang, Wenbin Yao, Degang Zhang, Ping Zhang, Jian Zou
  • Polymeric charge transfer layer and organic electronic device containing the same
    Patent number: 10454036
    Abstract: The present invention relates to a polymeric charge transfer layer comprising a polymer and a p-dopant. The polymer comprises as polymerized units, Monomer A, Monomer B, and Monomer C crosslinking agent. The present invention further relates to an organic electronic device, especially an organic light emitting device containing the polymeric charge transfer layer.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: October 22, 2019
    Assignees: Dow Global Technologies LLC, Rohm and Haas Electronic Materials Korea Ltd., Rohm and Haas Electronic Materials LLC
    Inventors: Liam P. Spencer, Hong-Yeop Na, Yoo-Jin Doh, Chun Liu, Minrong Zhu, Jichang Feng, Zhengming Tang, Shaoguang Feng, Kenneth L. Kearns, Jr., Timothy De Vries, Sukrit Mukhopadhyay, John W. Kramer, Peter Trefonas, III, David D. Devore, William H. H. Woodward
  • Organic compound and electronic device comprising an organic layer comprising the organic compound
    Patent number: 10294203
    Abstract: An organic compound suitable for organic layers of electronic devices that show improved luminescent properties.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: May 21, 2019
    Assignees: Dow Global Technologies LLC, Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Zhengming Tang, Chong Xing, Shaoguang Feng, Minrong Zhu, Hua Ren, Hong-Yeop Na, Yuchen Liu, Robert J. Wright, David D. Devore
  • Compositions comprising oxygen substituted benzocyclobutenes and dienophiles, and electronic devices containing the same
    Patent number: 10256410
    Abstract: A light emitting device comprising a polymeric charge transfer layer, wherein the polymeric charge transfer layer is formed from a composition comprising a polymer, said polymer comprising one or more polymerized units derived from Structure A, and one or more polymerized units derived from Structure (B), each as follows: A) a monomer having the Structure (A), as defined herein: and B) a monomer that comprises one or more dienophile moieties.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: April 9, 2019
    Assignees: Dow Global Technologies LLC, Rohm and Haas Electronic Materials LLC
    Inventors: Liam P. Spencer, Liang Hong, Chun Liu, Minrong Zhu, Jichang Feng, Jing Jing Yan, Zhengming Tang, Shaoguang Feng, Peter Trefonas, III, David D. Devore, Nolan T. McDougal
  • ORGANIC ELECTROLUMINESCENT COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    Publication number: 20190067593
    Abstract: The present invention relates to an organic EL device comprising an electron buffer material, and a first electrode, a second electrode opposing the first electrode, a light-emitting layer disposed between the two electrodes, and an electron transport zone and an electron buffer layer disposed between the light-emitting layer and the second electrode. By using an electron buffer material according to the present invention, the organic EL device having low driving voltage, high luminous efficiency, and excellent lifespan can be provided.
    Type: Application
    Filed: March 15, 2016
    Publication date: February 28, 2019
    Inventors: Sang He Cho, Hong Yeop Na, Zhengming Tang, Shaoguang Feng, Doo-Hyeon Moon
  • POLYMERIC CHARGE TRANSFER LAYER AND ORGANIC ELECTRONIC DEVICE CONTAINING THE SAME
    Publication number: 20180226584
    Abstract: The present invention relates to a polymeric charge transfer layer comprising a polymer and a p-dopant. The polymer comprises as polymerized units, Monomer A, Monomer B, and Monomer C crosslinking agent. The present invention further relates to an organic electronic device, especially an organic light emitting device containing the polymeric charge transfer layer.
    Type: Application
    Filed: January 8, 2015
    Publication date: August 9, 2018
    Inventors: Liam P. Spencer, Hong-Yeop Na, Yoo-Jin Doh, Chun Liu, Minrong Zhu, Jichang Feng, Zhengming Tang, Shaoguang Feng, Kenneth L. Kearns, JR., Timothy De Vries, Sukrit Mukhopadhyay, John W. Kramer, Peter Trefonas, III, David D. Devore, William H. H. Woodward
  • Organic compounds and electronic device comprising an organic layer comprising the organic compounds
    Patent number: 10005729
    Abstract: Organic compounds suitable for organic layers of electronic devices that show improved luminescent properties.
    Type: Grant
    Filed: December 25, 2015
    Date of Patent: June 26, 2018
    Assignees: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Zhengming Tang, Chong Xing, Shaoguang Feng, Hong-Yeop Na, Minrong Zhu, Robert J. Wright, David D. Devore
  • ORGANIC COMPOSITION AND ELECTRONIC DEVICE COMPRISING ORGANIC LAYER COMPRISING SAID COMPOSITION
    Publication number: 20180151807
    Abstract: A composition suitable for organic layers of electronic devices that shows improved luminescent properties, and electronic devices comprising organic layers comprising such composition.
    Type: Application
    Filed: May 29, 2015
    Publication date: May 31, 2018
    Inventors: Zhengming Tang, Moo Keun Chee, Hong Yeop Na, Hua Ren, Shaoguang Feng
  • ORGANIC COMPOUNDS AND ELECTRONIC DEVICE COMPRISING AN ORGANIC LAYER COMPRISING THE ORGANIC COMPOUNDS
    Publication number: 20180002284
    Abstract: Organic compounds suitable for organic layers of electronic devices that show improved luminescent properties.
    Type: Application
    Filed: December 25, 2015
    Publication date: January 4, 2018
    Inventors: Zhengming Tang, Chong Xing, Shaoguang Feng, Hong-Yeop Na, Minrong Zhu, Robert J. Wright, David D. Devore
  • ORGANIC COMPOUNDS AND ELECTRONIC DEVICE COMPRISING ORGANIC LAYER COMPRISING ORGANIC COMPOUNDS
    Publication number: 20180006236
    Abstract: Organic compounds suitable for organic layers of electronic devices that show reduced driving voltage, increased luminous efficiency and/or increased power efficiency.
    Type: Application
    Filed: December 22, 2015
    Publication date: January 4, 2018
    Inventors: Zhengming Tang, Shaoguang Feng, Hong-Yeop Na, Chong Xing, Minrong Zhu, Robert J. Wright, David D. Devore, Jichang Feng, Kyung-Joo Lee
  • ORGANIC COMPOUND AND ELECTRONIC DEVICE COMPRISING AN ORGANIC LAYER COMPRISING THE ORGANIC COMPOUND
    Publication number: 20170334849
    Abstract: An organic compound suitable for organic layers of electronic devices that show improved luminescent properties.
    Type: Application
    Filed: November 11, 2015
    Publication date: November 23, 2017
    Inventors: Zhengming Tang, Chong Xing, Shaoguang Feng, Minrong Zhu, Hua Ren, Hong-Yeop Na, Yuchen Liu, Robert J. Wright, David D. Devore
  • COMPOSITIONS COMPRISING OXYGEN SUBSTITUTED BENZOCYCLOBUTENES AND DIENOPHILES, AND ELECTRONIC DEVICES CONTAINING THE SAME
    Publication number: 20170170400
    Abstract: A light emitting device comprising a polymeric charge transfer layer, wherein the polymeric charge transfer layer is formed from a composition comprising a polymer, said polymer comprising one or more polymerized units derived from Structure A, and one or more polymerized units derived from Structure (B), each as follows: A) a monomer having the Structure (A), as defined herein: and B) a monomer that comprises one or more dienophile moieties.
    Type: Application
    Filed: August 20, 2015
    Publication date: June 15, 2017
    Inventors: Liam P. Spencer, Liang Hong, Chun Liu, Minrong Zhu, Jichang Feng, Jing Jing Yan, Zhengming Tang, Shaoguang Feng, Peter Trefonas, III, David D. Devore, Nolan T. McDougal