Patents by Inventor Stéphane Costeux

Stéphane Costeux 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: 20240035288
    Abstract: A composite structural board having a structural board and a water-resistant barrier (WRB) sheet, and a wall system comprising same, wherein a face of the structural board is discontinuously attached to the inner face of the WRB sheet solely by a first adhesive, the WRB sheet fully covering the face of the structural board; wherein the unattached areas between the face of the structural board and the inner face of the WRB sheet define paths by which a liquid can move between the face of the structural board and the inner face of the WRB sheet; in some instances the WRB sheet material extends beyond at least one edge of the structural board forming a WRB sheet flap.
    Type: Application
    Filed: October 13, 2023
    Publication date: February 1, 2024
    Inventors: WAZIR NOBBEE, JESSE C. THROWER, II, JAMES DEAN KATSAROS, STEPHANE COSTEUX, JOHN NEILL, WILLIAM BRIAN LIEBURN, BRYN THOMAS
  • Publication number: 20230399480
    Abstract: According to various embodiments, a microcellular foam is provided, wherein the microcellular foam comprises a polymer blend, the polymer blend comprising: from 70 to 95% by weight low density polyethylene (LDPE); and from 5 to 30% by weight of polydimethylsiloxane grafted LDPE (PDMS-g-LDPE), wherein the microcellular foam has an average cell size of less than 60 ?m.
    Type: Application
    Filed: October 29, 2021
    Publication date: December 14, 2023
    Applicant: Dow Global Technologies LLC
    Inventors: Brian R. Dorvel, Andrew T. Heitsch, Anson Sze Tat Wong, Stéphane Costeux, John O. Osby, Jian Yang
  • Patent number: 11821220
    Abstract: A composite structural board having a structural board and a water-resistant barrier (WRB) sheet, and a wall system comprising same, wherein a face of the structural board is discontinuously attached to the inner face of the WRB sheet solely by a first adhesive, the WRB sheet fully covering the face of the structural board; wherein the unattached areas between the face of the structural board and the inner face of the WRB sheet define paths by which a liquid can move between the face of the structural board and the inner face of the WRB sheet; in some instances the WRB sheet material extends beyond at least one edge of the structural board forming a WRB sheet flap.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: November 21, 2023
    Assignee: DUPONT SAFETY & CONSTRUCTION, INC.
    Inventors: Wazir Nobbee, Jesse C Thrower, II, James Dean Katsaros, Stephane Costeux, John Neill, William Brian Lieburn, Bryn Thomas
  • Patent number: 11535744
    Abstract: An amorphous polyester or copolyester composition comprises the reaction product of a crystalline or semicrystalline polyester or copolyester, optionally derived from a recycled waste stream, at least one diol or aromatic diacid or an ester of a diacid or a hydroxycarboxylic acid or a lactone or a dianhydride, and a catalyst, wherein the amorphous composition has a weight average molecular weight of at least 10,000 g/mol (polystyrene equivalent molecular weight) as measured by gel permeation chromatography.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: December 27, 2022
    Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US, LLC.
    Inventors: Mark Alan Barger, Stephane Costeux, Michal Elizabeth Porter, Patrick Heider
  • Patent number: 11525045
    Abstract: Chemically modified polyesters, foamable compositions thereof that form low density foams, and methods of making the foamable compositions and foams are disclosed. The compositions comprise an amorphous copolyester, or amorphous co-polyesterpolycarbonate or amorphous co-polyesterpolyether or combination thereof. Additionally, uses for the low density foams are disclosed.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: December 13, 2022
    Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US, INC.
    Inventors: Michal Elizabeth Porter, Mark Alan Barger, Yiyong He, Stéphane Costeux, Gerald F Billovits, Wenyi Huang, Edoardo Nicoli
  • Publication number: 20210162704
    Abstract: Fabricate a panel (5) by building a sacrificial relief (10) by an additive process of multilayer deposition, applying a facade layer (20,30) over the sacrificial relief so as to conform to the contour of the sacrificial relief, depositing a foamable composition (40, 50, 60) over the facade layer.
    Type: Application
    Filed: May 7, 2018
    Publication date: June 3, 2021
    Inventors: Attiganal N. Sreeram, Daniel S. Woodman, Michael J. Radler, Gary D. Parsons, Robert Baumann, Jai Venkatesan, Mark A. Barger, Stéphane Costeux, Michael H. Mazor, Richard Cesaretti
  • Publication number: 20210079647
    Abstract: A composite structural board having a structural board and a water-resistant barrier (WRB) sheet, and a wall system comprising same, wherein a face of the structural board is discontinuously attached to the inner face of the WRB sheet solely by a first adhesive, the WRB sheet fully covering the face of the structural board; wherein the unattached areas between the face of the structural board and the inner face of the WRB sheet define paths by which a liquid can move between the face of the structural board and the inner face of the WRB sheet; in some instances the WRB sheet material extends beyond at least one edge of the structural board forming a WRB sheet flap.
    Type: Application
    Filed: August 14, 2020
    Publication date: March 18, 2021
    Inventors: WAZIR NOBBEE, JESSE C. THROWER, II, JAMES DEAN KATSAROS, Stephane COSTEUX, JOHN NEILL, WILLIAM BRIAN LIEBURN, BRYN THOMAS
  • Patent number: 10913816
    Abstract: A one-component foam formulation contains a pre-polymer and a blowing agent, the pre-polymer being the reaction product of a polymeric polyol component having an average hydroxyl functionality in a range of 2.3 to 2.85 hydroxyl functionalities per molecule as determined using ASTM D4274-11 (method D); and where the polymeric polyol component has an effective average molecular weight in a range of 4500 and 10000 grams per mole, one or more than one type of chain extender molecule having 3 to 6 carbon atoms and 2 to 4 reactive functionalities selected from a group consisting of hydroxyl and amine functionalities per molecule, a polyisocyanate having a functionality in a range of 2.1 to 3.0 —NCO functionalities per molecule as determined by ASTM D7252-06(2011)e1; and a catalyst.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: February 9, 2021
    Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US, LLC
    Inventors: Beverly J. Selle, Deborah A. Schutter, Megan Thomas, Stéphane Costeux
  • Publication number: 20200308396
    Abstract: An amorphous polyester or copolyester composition comprises the reaction product of a crystalline or semicrystalline polyester or copolyester, optionally derived from a recycled waste stream, at least one diol or aromatic diacid or an ester of a diacid or a hydroxycarboxylic acid or a lactone or a dianhydride, and a catalyst, wherein the amorphous composition has a weight average molecular weight of at least 10,000 g/mol (polystyrene equivalent molecular weight) as measured by gel permeation chromatography.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 1, 2020
    Inventors: Mark Alan Barger, Stephane Costeux, Michal Elizabeth Porter, Patrick Heider
  • Publication number: 20200308363
    Abstract: Chemically modified polyesters, foamable compositions thereof that form low density foams, and methods of making the foamable compositions and foams are disclosed. The compositions comprise an amorphous copolyester, or amorphous co-polyesterpolycarbonate or amorphous co-polyesterpolyether or combination thereof. Additionally, uses for the low density foams are disclosed.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 1, 2020
    Inventors: Michal Elizabeth Porter, Mark Alan Barger, Yiyong He, Stephane Costeux, Gerald F. Billovits, Wenyi Huang, Edoardo Nicoli
  • Publication number: 20200305239
    Abstract: A puncture-resistant, electrically-energized sheet heater comprises a conductive polymeric film laminated between a top puncture-resistant, polymeric protective layer and a bottom backing layer that may comprise an insulated backing layer of extruded polystyrene closed-cell foam board. The heater is appointed to be placed beneath, or embedded in, a pavement material, and energized to provide heat to remove frozen precipitation from the pavement, or prevent it from accumulating thereon.
    Type: Application
    Filed: March 20, 2020
    Publication date: September 24, 2020
    Inventors: Wei Wu, GREGORY SCOTT BLACKMAN, Stephane Costeux, James Neal Singletary
  • Patent number: 10472482
    Abstract: An extruded polymer foam has a polymer matrix with styrene-acrylonitrile copolymer and infrared attenuator and cell having an average size in the foam vertical direction of 150 micrometers or less, a ratio of vertical cell size to extrusion direction cell size that is greater than one and a cell anisotropic ratio that is greater than 1.1; the foam having a P-Ratio of 0.7 or less, less than 0.2 moles of hydrocarbon blowing agent in the cells per kilogram of foam; a density of 20-48 kilograms per cubic meter and a 25-year thermal conductivity that is 0.030 Waters per meter-Kelvin or less when free of fluorinated blowing agents and less than 0.029 Watts per meter-Kelvin when containing fluorinated blowing agent.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: November 12, 2019
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Van-Chau Vo, David J. Frankowski, Anson Wong, Stéphane Costeux
  • Patent number: 10322534
    Abstract: Prepare nanofoam by: (a) providing a mold (10) with a mold cavity (12) defined by mold walls defining a sealable port (32); (b) providing a foamable polymer mixture containing a polymer and a blowing agent at a pressure at least 690 kilopascals above the saturation pressure for the polymer and blowing agent; (c) introducing the foamable polymer mixture into the mold cavity (12) while maintaining a temperature and pressure at least 690 kilopascals above the saturation pressure and controlling the pressure in the mold cavity (12) by expanding a wall of the mold; and (d) releasing pressure around the foamable mixture by moving a mold wall (20) at a rate of at least 45 centimeters per second, causing the foamable polymer mixture to expand into nanofoam having a porosity of at least 60 percent, a volume of at least 100 cubic centimeters and at least two orthogonal dimensions of four centimeter or more.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: June 18, 2019
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Stéphane Costeux, Daniel A. Beaudoin, Hyunwoo Kim, Devin A. Foether
  • Patent number: 10093781
    Abstract: Extruded polymer foams are made from a polymer composition that includes an unbrominated styrenic polymer, a brominated vinyl aromatic/butadiene flame retardant, and an unbrominated vinyl aromatic/butadiene polymer. The unbrominated vinyl aromatic/butadiene polymer improves the cell homogeneity.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: October 9, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Kenji Matsue, Naganori Nishioka, Yoshihiro Shirakawa, Lawrence S. Hood, Shari L. Kram, Stephane Costeux, Mark A. Barger
  • Publication number: 20180237574
    Abstract: A one-component foam formulation contains a pre-polymer and a blowing agent, the pre-polymer being the reaction product of a polymeric polyol component having an average hydroxyl functionality in a range of 2.3 to 2.85 hydroxyl functionalities per molecule as determined using ASTM D4274-11 (method D); and where the polymeric polyol component has an effective average molecular weight in a range of 4500 and 10000 grams per mole, one or more than one type of chain extender molecule having 3 to 6 carbon atoms and 2 to 4 reactive functionalities selected from a group consisting of hydroxyl and amine functionalities per molecule, a polyisocyanate having a functionality in a range of 2.1 to 3.0 —NCO functionalities per molecule as determined by ASTM D7252-06(2011)e1; and a catalyst.
    Type: Application
    Filed: September 20, 2016
    Publication date: August 23, 2018
    Applicant: Dow Global Technologies LLC
    Inventors: Beverly J. Selle, Deborah A. Schutter, Megan Thomas, Stéphane Costeux
  • Publication number: 20180215890
    Abstract: An extruded polymer foam has a polymer matrix with styrene-acrylonitrile copolymer and infrared attenuator and cell having an average size in the foam vertical direction of 150 micrometers or less, a ratio of vertical cell E size to extrusion direction cell size that is greater than one and a cell anisotropic ratio that is greater than 1.1; the foam having a P-Ratio of 0.7 or less, less than 0.2 moles of hydrocarbon blowing agent in the cells per kilogram of foam; a density of 20-48 kilograms per cubic meter and a 25-year thermal conductivity that is 0.030 Waters per meter-Kelvin or less when free of fluorinated blowing agents and less than 0.029 Watts per meter-Kelvin when containing fluorinated blowing agent.
    Type: Application
    Filed: April 7, 2016
    Publication date: August 2, 2018
    Applicant: Dow Global Technologies LLC
    Inventors: Van-Chau Vo, David J. Frankowski, Anson Wong, Stéphane Costeux
  • Patent number: 9840605
    Abstract: Polymer foam bodies are made from phosphorus-containing thermoplastic random copolymers of a dialkyl (meth)acryloyloxyalkyl phosph(on)ate. Foam bodies made from these copolymers exhibit increased limiting oxygen indices and surprisingly have good properties. In certain embodiments, the phosphorus-containing thermoplastic copolymer is blended with one or more other polymers and formed into nanofoams.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: December 12, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Yudong Qi, Yan Li, Shana P. Bunker, Stephane Costeux, Ted A. Morgan
  • Patent number: 9822230
    Abstract: Prepare nanofoam by (a) providing an aqueous solution of a flame retardant dissolved in an aqueous solvent, wherein the flame retardant is a solid at 23° C. and 101 kiloPascals pressure when in neat form; (b) providing a fluid polymer composition selected from a solution of polymer dissolved in a water-miscible solvent or a latex of polymer particles in a continuous aqueous phase; (c) mixing the aqueous solution of flame retardant with the fluid polymer composition to form a mixture; (d) removing water and, if present, solvent from the mixture to produce a polymeric composition having less than 74 weight-percent flame retardant based on total polymeric composition weight; (e) compound the polymeric composition with a matrix polymer to form a matrix polymer composition; and (f) foam the matrix polymer composition into nanofoam having a porosity of at least 60 percent.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: November 21, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Liang Chen, Anne M. Kelly-Rowley, Shana P. Bunker, Stéphane Costeux
  • Patent number: 9718938
    Abstract: Prepare a polymeric foam article having a thermoplastic polymer matrix defining multiple cells therein, wherein the polymeric foam article has the following characteristics: (a) the thermoplastic polymer matrix contains dispersed within it nano-sized nucleating additive particles that have at least two orthogonal dimensions that are less than 30 nanometers in length; (b) possesses at least one of the following two characteristics: (i) has an effective nucleation site density of at least 3×1014 sites per cubic centimeter of pre-foamed material; and (ii) has an average cell size of 300 nanometers or less; and (c) has a porosity percentage of more than 50 percent by rapidly expanding at a foaming temperature a foamable polymer composition containing the nucleating additive and a blowing agent containing at least one of carbon dioxide, nitrogen and argon.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: August 1, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Stéphane Costeux, Lingbo Zhu, Christopher M. Weikart, Thomas H. Kalantar
  • Patent number: 9650500
    Abstract: Prepare an article of manufacture by providing a latex of hollow latex particles with a rigid inner shell and adhesive outer shell, providing nanoporous particles and dispersing them into the latex and drying the latex so as to cause the hollow latex particle to bind to one another and form an article of manufacture containing nanoporous particles and hollow latex particles wherein the hollow latex particles are bound directly to one another to form a continuous matrix and the nanoporous particles are dispersed within the continuous matrix of hollow latex particles.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: May 16, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Yahong Zhang, Stéphane Costeux, Thomas H. Kalantar