Patents by Inventor Huifeng Qian

Huifeng Qian 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: 20210147606
    Abstract: Embodiments of the present disclosure are directed towards directed towards heat curing compositions. The heat curing compositions can include an isocyanate component, wherein the isocyanate component includes an isocyanate-polyol reaction product, an epoxy material, and a Lewis acid-amine complex, wherein the heat curing composition has an isocyanate group to epoxide group ratio from 3:1 to 20:1.
    Type: Application
    Filed: August 29, 2018
    Publication date: May 20, 2021
    Applicant: Dow Global Technologies LLC
    Inventors: Luigi Pellacani, Huifeng Qian
  • Publication number: 20210070922
    Abstract: Controllable-cure urethane acrylate resin compositions are disclosed, comprising (A) a urethane acrylate having free hydroxyalkyl (meth) acrylate prepared from a polyurethane prepolymer having a free terminal isocyanate group and a hydroxyalkyl (meth)acrylate, the urethane acrylate having free hydroxyalkyl (meth) acrylate being the reaction product of capping the polyurethane prepolymer in the presence excess of the hydroxyalkyl (meth)acrylate, (B) a polyisocyanate-based thickening agent, and optionally an additional hydroxyalkyl (meth)acrylate, wherein the polyisocyanate-based thickening agent (B) and the urethane acrylate having free hydroxyalkyl (meth) acrylate (A), and optionally the additional hydroxyalkyl (meth)acrylate, are present at NCO/OH molar ratio of from 0.2 to 10.0. Methods for making controllable-cure urethane acrylate resin compositions are disclosed.
    Type: Application
    Filed: November 13, 2018
    Publication date: March 11, 2021
    Applicant: Dow Global Technologies LLC
    Inventors: Huifeng Qian, Luigi Pellacani, Muhammad A. Shafi
  • Publication number: 20200291166
    Abstract: A curable resin composition comprising: (1) a urethane (meth)acrylate; (2) a reactive diluent selected from the group consisting of i) a hydroxyl alkyl (meth)acrylate monomer where the acrylate group, which is attached to the carbonyl group, is attached to a hydrogen or a methyl group and the carbonyl group is attached to the hydroxyl group thru an R2 alkylene group containing 2 to 18 carbon atoms per molecule.
    Type: Application
    Filed: March 1, 2017
    Publication date: September 17, 2020
    Inventors: Huifeng Qian, Muhammad A Shafi, Luigi Pellacani, Harshad M. Shah, Dwight Latham, Qiuyun Xu, William L. Heaner, Emanuele Maiocchi
  • Publication number: 20200291168
    Abstract: A curable resin composition comprising: (1) a urethane (meth)acrylate; (2) a reactive diluent comprising at least 20 percent by weight of glycols and/or polyols with terminal acrylate or methacrylate groups; and (3) a free radical-generating catalyst, is disclosed.
    Type: Application
    Filed: February 23, 2017
    Publication date: September 17, 2020
    Inventors: Luigi Pellacani, Huifeng Qian, Muhammad Shafi
  • Publication number: 20200172655
    Abstract: In various embodiments, a resin composition includes a urethane (meth)acrylate, and an inhibitor package. The inhibitor package includes at least one nitroxide radical and at least one base. The base is selected from the group consisting of tertiary amine bases, alkoxides, and hydroxides having a pH in water of greater than 8.2. Process for making the resin composition as well as processes using the resin composition are also provided.
    Type: Application
    Filed: August 22, 2018
    Publication date: June 4, 2020
    Applicant: Dow Global Technologies LLC
    Inventors: Huifeng Qian, Asjad Shafi, Robert Bellair, Thomas Willumstad, Florin Dan, Brenton Drake, Luigi Pellacani
  • Publication number: 20190375882
    Abstract: In various embodiments, a resin composition includes a urethane (meth)acrylate, a reactive diluent, and a urethane (meth)acrylate toughener. The urethane (meth)acrylate toughener includes at least one additional polyol having a number average molecular weight Mn of greater than 1,000 g/mol. Cured articles made from the resin composition have an average fracture toughness (KIc) value from 1 MPa*m1/2 to 3 MPa*m1/2 when measured in accordance with ASTM D5045. Processes for making the resin composition as well as processes using the resin composition are also provided.
    Type: Application
    Filed: September 7, 2017
    Publication date: December 12, 2019
    Applicant: Dow Global Technologies LLC
    Inventors: Huifeng Qian, Rajat Duggal, Muhammad A. Shafi, Luigi Pellacani, Harshad M. Shah
  • Publication number: 20190092896
    Abstract: A curable resin composition comprising: (1) a urethane (meth)acrylate comprising a) urethane (meth)acrylate oligomers with a number average molecular weight in the range of from 400 to 1500; and b) urethane (meth)acrylate oligomers with a number average molecular weight in the range of from 1500 to 10000, present in a weight ratio of from 0.1:1 to 25:1; (2) a reactive diluent; and (3) a free radical-generating catalyst, is disclosed.
    Type: Application
    Filed: February 27, 2017
    Publication date: March 28, 2019
    Inventors: Huifeng Qian, Muhammad A. Shafi, Luigi Pellacani
  • Publication number: 20170247502
    Abstract: A curable composition includes an epoxy resin component that includes at least one multifunctional epoxy novolac resin and at least one multifunctional liquid epoxy resin, an amine hardener component that includes at least one aromatic amine and optionally at least one cycloaliphatic amine, and an accelerator component that includes (i) at least one transition metal complex having a transition metal ion and an oxygen donor ligand, and (ii) at least one salt having a cation including a metal ion or an onium ion, and an anion including a non-nucleophilic anion.
    Type: Application
    Filed: November 18, 2015
    Publication date: August 31, 2017
    Inventors: Huifeng Qian, Gary A. Hunter, Gyongyi Gulyas
  • Publication number: 20170247503
    Abstract: An accelerator composition for epoxy resin formulations, the accelerator composition including (i) at least one transition metal complex and (ii) at least one salt where the cation of the salt is a metal or an onium cation with a non-nucleophilic anion; and a curable epoxy resin composition including (A) at least one epoxy thermosetting resin, (B) at least one curing agent, and (C) the above accelerator; a curable epoxy resin composition containing the above accelerator; and a cured thermoset produced from the above curable epoxy resin composition.
    Type: Application
    Filed: November 18, 2015
    Publication date: August 31, 2017
    Inventors: Huifeng Qian, Gary A. Hunter, Gyongyi Gulyas
  • Patent number: 9139920
    Abstract: An apparatus and method for CO2 reduction using an Au25 electrode. The Au25 electrode is comprised of ligand-protected Au25 having a structure comprising an icosahedral core of 13 atoms surrounded by a shell of six semi-ring structures bonded to the core of 13 atoms, where each semi-ring structure is typically —SR—Au—SR—Au—SR or —SeR—Au—SeR—Au—SeR. The 12 semi-ring gold atoms within the six semi-ring structures are stellated on 12 of the 20 faces of the icosahedron of the Au13 core, and organic ligand —SR or —SeR groups are bonded to the Au13 core with sulfur or selenium atoms. The Au25 electrode and a counter-electrode are in contact with an electrolyte comprising CO2 and H+, and a potential of at least ?0.1 volts is applied from the Au25 electrode to the counter-electrode.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: September 22, 2015
    Assignee: U.S. Department of Energy
    Inventors: Douglas Kauffman, Christopher Matranga, Huifeng Qian, Rongchao Jin, Dominic R. Alfonso