Patents by Inventor Keqi Gan

Keqi Gan 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: 20150072144
    Abstract: A radiation curable coating composition for an optical fiber comprising: at least one urethane (meth) acrylate oligomer, at least one reactive diluent monomer and at least one photo initiator is described and claimed. The composition is capable of undergoing photopolymerization when coated on an optical fiber and when irradiated by a light emitting diode (LED) light, having a wavelength from about 100 nm to about 900 nm, to provide a cured coating on the optical fiber, with the cured coating having a top surface, and the cured coating having a Percent Reacted Acrylate Unsaturation (% RAU) at the top surface of about 60% or greater. Also described and claimed are the process to coat an optical fiber with the LED curable coating for optical fiber and a coated optical fiber where the coating has been cured by application of LED light.
    Type: Application
    Filed: November 12, 2014
    Publication date: March 12, 2015
    Inventors: Timothy BISHOP, Keqi GAN
  • Publication number: 20130224495
    Abstract: A radiation curable coating for a floor comprising: at least one radiation curable oligomer, at least one photoinitiator and at least one reactive diluent monomer, said radiation curable oligomer being selected from the group consisting of Urethane (meth)acrylates, epoxy (meth)acrylates, polyester (meth)acrylates, acrylic (meth)acrylates, and hydrocarbon (meth)acrylates is described and claimed. The composition is capable of undergoing photopolymerization when coated on a floor and when irradiated by a light emitting diode (LED) light, having a wavelength from about 100 nm to about 900 nm, to provide a cured coating on the floor, with the cured coating having an external surface, and the cured coating having a Percent Reacted Acrylate Unsaturation (% RAU) at the external surface of about 60% or greater. Also described and claimed are the process to coat a floor with the LED curable coating for floor and a coated floor where the coating has been cured by application of LED light.
    Type: Application
    Filed: December 16, 2010
    Publication date: August 29, 2013
    Inventors: Keqi Gan, Timothy Bishop, Tai-Yeon Lee, Huimin Cao, Mark Diaz
  • Publication number: 20120196122
    Abstract: A radiation curable coating composition for an optical fiber comprising: at least one urethane(meth)acrylate oligomer, at least one reactive diluent monomer and at least one photo initiator is described and claimed. The composition is capable of undergoing photopolymerization when coated on an optical fiber and when irradiated by a light emitting diode (LED) light, having a wavelength from about 100 nm to about 900 nm, to provide a cured coating on the optical fiber, with the cured coating having a top surface, and the cured coating having a Percent Reacted Acrylate Unsaturation (% RAU) at the top surface of about 60% or greater. Also described and claimed are the process to coat an optical fiber with the LED curable coating for optical fiber and a coated optical fiber where the coating has been cured by application of LED light.
    Type: Application
    Filed: December 16, 2010
    Publication date: August 2, 2012
    Inventors: Timothy Bishop, Keqi Gan
  • Patent number: 7892606
    Abstract: The invention relates to new processes for the preparation of antireflective coatings and coated substrates, as well as articles produced by these processes. These coatings can include one or more layers made of materials which form nano-structured and/or nano-porous surfaces. The process can include applying a cross-linkable hard coat to a substrate, partially curing or cross-linking the hard coat, and then applying a second coat carried by a solvent or mixture of solvents capable of swelling the partially cured hard coat. The second coat is then cross-linked and grafted to the hard coat to produce a durable coated substrate with antireflective properties.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: February 22, 2011
    Assignee: DSM IP Assets B.V.
    Inventors: Jens C. Thies, Edwin Currie, Guido J. W. Meijers, Keqi Gan
  • Patent number: 7704608
    Abstract: The invention relates to new processes for the preparation of antireflective coatings and coated substrates, as well as articles produced by these processes. These coatings can include one or more layers made of materials which form nano-structured and/or nano-porous surfaces. The process can include applying a cross-linkable hard coat to a substrate, partially curing or cross-linking the hard coat, and then applying a second coat carried by a solvent or mixture of solvents capable of swelling the partially cured hard coat. The second coat is then cross-linked and grafted to the hard coat to produce a durable coated substrate with antireflective properties.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: April 27, 2010
    Assignee: DSM IP Assets B.V.
    Inventors: Jens C. Thies, Edwin Currie, Guido J. W. Meijers, Keqi Gan
  • Publication number: 20080248312
    Abstract: The invention relates to new processes for the preparation of antireflective coatings and coated substrates, as well as articles produced by these processes. These coatings can include one or more layers made of materials which form nano-structured and/or nano-porous surfaces. The process can include applying a cross-linkable hard coat to a substrate, partially curing or cross-linking the hard coat, and then applying a second coat carried by a solvent or mixture of solvents capable of swelling the partially cured hard coat. The second coat is then cross-linked and grafted to the hard coat to produce a durable coated substrate with antireflective properties.
    Type: Application
    Filed: March 15, 2007
    Publication date: October 9, 2008
    Applicant: DSM IP Assets B.V.
    Inventors: Jens C. Thies, Edwin Currie, Guido J.W. Meijers, Keqi Gan
  • Publication number: 20060019114
    Abstract: The invention relates to new processes for the preparation of antireflective coatings and coated substrates, as well as articles produced by these processes. These coatings can include one or more layers made of materials which form nano-structured and/or nano-porous surfaces. The process can include applying a cross-linkable hard coat to a substrate, partially curing or cross-linking the hard coat, and then applying a second coat carried by a solvent or mixture of solvents capable of swelling the partially cured hard coat. The second coat is then cross-linked and grafted to the hard coat to produce a durable coated substrate with antireflective properties.
    Type: Application
    Filed: October 6, 2004
    Publication date: January 26, 2006
    Inventors: Jens Thies, Edwin Currie, Guido Meijers, Keqi Gan
  • Patent number: 6200372
    Abstract: A single fluid water-based offset lithographic news ink comprising water; a macromolecular resin binder comprised of a resin soluble in water regardless of the pH of the water, a rosin salt resin soluble in water at pH ranging from 7.5 to 10 and an aqueous emulsion polymer; pigment; a water dispersible soy bean based polymer; and a hydroxyethylehtylene urea re-wetting agent.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: March 13, 2001
    Assignee: Sun Chemical Corporation
    Inventors: Ramasamy Krishnan, Neil Young, Keqi Gan, Marilyn Yamat, Hugo Babij, Martin Thomas Czebotar