Patents by Inventor Lujia Bu

Lujia Bu 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).

  • Publication number: 20230124713
    Abstract: Disclosed is an actinic radiation curable (meth)acrylic composition for use in hardcoats for optical displays containing one or more multifunctional (meth)acrylate monomers, one or more Si-containing (meth)acrylate monomers, one or more UV radical initiators, one or more monomers to improve surface cure, nanoparticles, and one or more organic solvents. Coated hardcoat articles made from this composition exhibit improved properties for use in display applications.
    Type: Application
    Filed: October 18, 2021
    Publication date: April 20, 2023
    Inventors: Michael MULZER, Kenneth HERNANDEZ, Andrew STELLA, Lujia BU, Jieqian ZHANG, Deyan WANG, Yinjie CEN
  • Publication number: 20220267198
    Abstract: Glass articles having a thin glass layer and atop optically transparent polymeric hard-coat layer disposed on atop surface of the thin glass layer. The top optically transparent polymeric hard-coat layer may have a thickness in a range of 0.1 microns to 200 microns and a pencil hardness of 6H or more, when the pencil hardness is measured with the optically transparent polymeric hard-coat layer disposed on the top surface of the glass layer. The glass articles avoid ejection of glass shard particles from the glass article upon bending to a failure during a static two-point bend test.
    Type: Application
    Filed: August 7, 2020
    Publication date: August 25, 2022
    Inventors: Lujia Bu, Huayun Deng, Suraj S Deshpande, Ross Stefan Johnson, Ying Zhang
  • Patent number: 11332559
    Abstract: Compositions for forming polymer layers useful in the manufacture of display devices, particularly flexible display, and methods of forming such devices are provided.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: May 17, 2022
    Assignee: ROHM AND HAAS ELECTRONIC MATERIALS LLC
    Inventors: Yixuan Song, Lujia Bu, Neelima Chandrayan, Deyan Wang, Anton Li, Jieqian Zhang
  • Publication number: 20210115289
    Abstract: The present invention provides a thermoformable and optically clear hard coat comprising a polyacrylate resin and 5 wt. % or less of inorganic nanoparticles with an average particle size of 100 nm or less in diameter based on total weight of resin solid. The polyacrylate resin is derived from polymerizing and curing ultraviolet (UV) curing acrylic compositions for use in making thermoformable hard coats for curved optical displays comprising (a) from 9 to 70 wt. %, based on the total weight of monomer solids, of an aliphatic tetrafunctional (meth)acrylate monomer or an aliphatic pentafunctional (meth)acrylate monomer; (b) from 3 to 30 wt. %, based on the total weight of monomer solids, of one or more one (meth)acrylate monomer containing an isocyanurate group; (c) from 5 to 55 wt. %, based on the total weight of monomer solids, of one or more aliphatic urethane (meth)acrylate functional oligomer having from 6 to 24 (meth)acrylate groups; (d) from 2 to 10 wt.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Inventors: Lujia Bu, Yusuke Matsuda, Michael Mulzer, Yinjie Cen
  • Publication number: 20210017308
    Abstract: Compositions for forming polymer layers useful in the manufacture of display devices, particularly flexible display, and methods of forming such devices are provided.
    Type: Application
    Filed: June 23, 2020
    Publication date: January 21, 2021
    Inventors: Yixuan Song, Lujia Bu, Neelima Chandrayan, Deyan Wang, Anton Li, Jieqian Zhang
  • Publication number: 20200123408
    Abstract: The present invention provides ultraviolet (UV) curing acrylic compositions for use in making thermoformable hard coats for curved optical displays comprising: (a) one or more multifunctional (meth)acrylate diluents chosen from (a1) an aliphatic trifunctional (meth)acrylate monomer; (a2) an aliphatic tetrafunctional (meth)acrylate monomer; or (a3) an aliphatic pentafunctional (meth)acrylate monomer; (b) from 3 to 30 wt %, based on the total weight of monomer solids, of one or more one (meth)acrylate monomer containing an isocyanurate group; (c) from 5 to 40 wt %, based on the total weight of monomer solids, of one or more aliphatic urethane (meth)acrylate functional oligomer having from 6 to 12 (meth)acrylate groups; (d) from 2 to 10 wt %, based on total monomer solids, of one or more UV radical initiators; (e) from 10 to 30 wt %, based on the total weight of (a), (b), (c), and (d), of one or more sulfur-containing polyol (meth)acrylates; and (f) one or more organic solvents for the monomer composition.
    Type: Application
    Filed: November 30, 2018
    Publication date: April 23, 2020
    Inventors: Lujia BU, Yusuke MATSUDA, Michael MULZER, Yinjie CEN
  • Publication number: 20190185602
    Abstract: The present invention provides ultraviolet (UV) curing acrylic compositions for use in making thermoformable hard coats for curved optical displays comprising: (a) one or more multifunctional (meth)acrylate diluents chosen from (a1) an aliphatic trifunctional (meth)acrylate monomer; (a2) an aliphatic tetrafunctional (meth)acrylate monomer; or (a3) an aliphatic pentafunctional (meth)acrylate monomer; (b) from 3 to 30 wt. %, based on the total weight of monomer solids, of one or more one (meth)acrylate monomer containing an isocyanurate group; (c) from 5 to 40 wt. %, based on the total weight of monomer solids, of one or more aliphatic urethane (meth)acrylate functional oligomer having from 6 to 12 (meth)acrylate groups; (d) from 2 to 10 wt. %, based on total monomer solids, of one or more UV radical initiators; and (e) one or more organic solvents for the monomer composition. The composition has a viscosity measured by Anton Parr ASVM 3001 digital viscometer at 50 wt.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 20, 2019
    Inventors: Lujia Bu, Yusuke Matsuda, Michael Mulzer
  • Patent number: 9868820
    Abstract: Certain polyarylene oligomers having improved solubility are useful in forming dielectric material layers in electronics applications.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: January 16, 2018
    Assignees: Rohm and Haas Electronic Materials LLC, Rohm and Haas Electronic Materials Korea Ltd
    Inventors: Christopher D. Gilmore, Lujia Bu, Peng-Wei Chuang, Deyan Wang, Yerang Kang, Ping Ding, Young Seok Kim, Kathleen M. O'Connell
  • Publication number: 20170015804
    Abstract: Compositions of nanoparticles are stabilized by capping agents which are composed of methacrylic acid and n-butylmethacrylate random copolymers having hydrophobic and hydrophilic moieties and low molecular weight.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 19, 2017
    Inventors: Mubasher A. Bashir, Michael A. De Graaf, Lujia Bu, Kinga Scieranka, Marianne P. Creamer
  • Publication number: 20160208097
    Abstract: Methods of manufacturing polyimides using a solvent system that is free of N-methylpyrrolidone are provided. Compositions useful in the deposition of polyimide films that are free of N-methylpyrrolidone are also provided.
    Type: Application
    Filed: November 16, 2015
    Publication date: July 21, 2016
    Inventors: Lujia Bu, Fu Zhou, Charles R. Kinzie, Xiang-Qian Liu
  • Publication number: 20160060393
    Abstract: Certain polyarylene oligomers having improved solubility are useful in forming dielectric material layers in electronics applications.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 3, 2016
    Inventors: Christopher D. GILMORE, Lujia BU, Peng-Wei CHUANG, Deyan WANG, Yerang KANG, Ping DING, Young Seok KIM, Kathleen M. O'CONNELL
  • Patent number: 9148969
    Abstract: A process for manufacturing silver nanowires is provided, comprising: providing a silver ink core component containing ?60 wt % silver nanoparticles dispersed in a silver carrier; providing a shell component containing a film forming polymer dispersed in a shell carrier; providing a substrate; coelectrospinning the silver ink core component and the shell component depositing on the substrate a core shell fiber having a core and a shell surrounding the core, wherein the silver nanoparticles are in the core; and, treating the silver nanoparticles to form a population of silver nanowires, wherein the population of silver nanowires exhibit an average length, L, of ?60 ?m.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: September 29, 2015
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Jerome Claracq, Garo Khanarian, Lujia Bu, Jaebum Joo, Peter Trefonas
  • Publication number: 20150147463
    Abstract: Certain polyphenylene oligomers having good solvent strip resistance, low coefficient of thermal expansion and good adhesion to a variety of surfaces are useful as thin-film dielectric materials in electronics applications.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Inventors: Christopher D. Gilmore, Lujia BU, Peng-Wei CHUANG, Cecilia Waithera KIARIE, Young Seok KIM, Kathleen M. O'Connell, Stefan J. CAPORALE
  • Publication number: 20140027954
    Abstract: A process for manufacturing silver nanowires is provided, comprising: providing a silver ink core component containing ?60 wt % silver nanoparticles dispersed in a silver carrier; providing a shell component containing a film forming polymer dispersed in a shell carrier; providing a substrate; coelectrospinning the silver ink core component and the shell component depositing on the substrate a core shell fiber having a core and a shell surrounding the core, wherein the silver nanoparticles are in the core; and, treating the silver nanoparticles to form a population of silver nanowires, wherein the population of silver nanowires exhibit an average length, L, of ?60 ?m.
    Type: Application
    Filed: July 22, 2013
    Publication date: January 30, 2014
    Applicant: Rohm and Haas Electronic Materials LLC
    Inventors: Jerome Claracq, Garo Khanarian, Lujia Bu, Jaebum Joo, Peter Trefonas
  • Patent number: 8536049
    Abstract: Methods of forming metal contacts with metal inks in the manufacture of photovoltaic devices are disclosed. The metal inks are selectively deposited on semiconductor coatings by inkjet and aerosol apparatus. The composite is heated to selective temperatures where the metal inks burn through the coating to form an electrical contact with the semiconductor. Metal layers are then deposited on the electrical contacts by light induced or light assisted plating.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: September 17, 2013
    Assignees: Rohm and Haas Electronic Materials LLC, Alliance for Sustainable Energy, LLC
    Inventors: Erik Reddington, Thomas C. Sutter, Lujia Bu, Alexandra Cannon, Susan E. Habas, Calvin J. Curtis, Alexander Miedaner, David S. Ginley, Marinus Franciscus Antonius Maria Van Hest
  • Patent number: 8389094
    Abstract: Provided are methods of forming multi-layered optical data storage media which include a high-density data layer, as well as multi-layered optical data storage media that can be formed by such methods.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: March 5, 2013
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Edward C. Greer, Lujia Bu
  • Publication number: 20120129332
    Abstract: Methods of forming metal contacts with metal inks in the manufacture of photovoltaic devices are disclosed. The metal inks are selectively deposited on semiconductor coatings by inkjet and aerosol apparatus. The composite is heated to selective temperatures where the metal inks burn through the coating to form an electrical contact with the semiconductor. Metal layers are then deposited on the electrical contacts by light induced or light assisted plating.
    Type: Application
    Filed: October 14, 2011
    Publication date: May 24, 2012
    Applicants: Alliance for Sustainable Energy, LLC, Rohm and Haas Electronic Materials LLC
    Inventors: Erik REDDINGTON, Thomas C. Sutter, Lujia Bu, Alexandra Perras, Susan E. Habas, Calvin J. Curtis, Alexander Miedaner, David S. Ginley, Marinus Franciscus Antonius Maria Van Hest
  • Patent number: 8088467
    Abstract: Curable compositions are disclosed. Also disclosed are optical media comprising said curable compositions when cured and methods of making such optical media.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: January 3, 2012
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Lujia Bu, Edward C. Greer, Georg R. Kestler, Alan I. Nakatani, Charles R. Szmanda
  • Publication number: 20100220583
    Abstract: Provided are methods of forming multi-layered optical data storage media which include a high-density data layer, as well as multi-layered optical data storage media that can be formed by such methods.
    Type: Application
    Filed: February 11, 2010
    Publication date: September 2, 2010
    Applicant: Rohm and Haas Electronic Materials LLC
    Inventors: Edward C. Greer, Lujia Bu
  • Patent number: 7429627
    Abstract: A substituted (meth)acrylic copolymer leveling agent is useful in producing a ferroelectric polymer film that is especially suitable for use in a data processing device. Also disclosed is a a casting composition which includes the leveling agent, a film stack, and a data processing device comprising a ferroelectric film produced using the leveling agent.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: September 30, 2008
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Charles R. Szmanda, Kathleen B. Spear-Alfonso, Lujia Bu