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).
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Publication number: 20240035288Abstract: 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: ApplicationFiled: October 13, 2023Publication date: February 1, 2024Inventors: WAZIR NOBBEE, JESSE C. THROWER, II, JAMES DEAN KATSAROS, STEPHANE COSTEUX, JOHN NEILL, WILLIAM BRIAN LIEBURN, BRYN THOMAS
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Publication number: 20230399480Abstract: 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: ApplicationFiled: October 29, 2021Publication date: December 14, 2023Applicant: Dow Global Technologies LLCInventors: Brian R. Dorvel, Andrew T. Heitsch, Anson Sze Tat Wong, Stéphane Costeux, John O. Osby, Jian Yang
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Patent number: 11821220Abstract: 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: GrantFiled: August 14, 2020Date of Patent: November 21, 2023Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventors: Wazir Nobbee, Jesse C Thrower, II, James Dean Katsaros, Stephane Costeux, John Neill, William Brian Lieburn, Bryn Thomas
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Patent number: 11535744Abstract: 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: GrantFiled: March 27, 2020Date of Patent: December 27, 2022Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US, LLC.Inventors: Mark Alan Barger, Stephane Costeux, Michal Elizabeth Porter, Patrick Heider
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Patent number: 11525045Abstract: 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: GrantFiled: March 27, 2020Date of Patent: December 13, 2022Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US, INC.Inventors: Michal Elizabeth Porter, Mark Alan Barger, Yiyong He, Stéphane Costeux, Gerald F Billovits, Wenyi Huang, Edoardo Nicoli
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Publication number: 20210162704Abstract: 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: ApplicationFiled: May 7, 2018Publication date: June 3, 2021Inventors: 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
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Publication number: 20210079647Abstract: 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: ApplicationFiled: August 14, 2020Publication date: March 18, 2021Inventors: WAZIR NOBBEE, JESSE C. THROWER, II, JAMES DEAN KATSAROS, Stephane COSTEUX, JOHN NEILL, WILLIAM BRIAN LIEBURN, BRYN THOMAS
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Patent number: 10913816Abstract: 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: GrantFiled: September 20, 2016Date of Patent: February 9, 2021Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US, LLCInventors: Beverly J. Selle, Deborah A. Schutter, Megan Thomas, Stéphane Costeux
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Publication number: 20200308396Abstract: 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: ApplicationFiled: March 27, 2020Publication date: October 1, 2020Inventors: Mark Alan Barger, Stephane Costeux, Michal Elizabeth Porter, Patrick Heider
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Publication number: 20200308363Abstract: 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: ApplicationFiled: March 27, 2020Publication date: October 1, 2020Inventors: Michal Elizabeth Porter, Mark Alan Barger, Yiyong He, Stephane Costeux, Gerald F. Billovits, Wenyi Huang, Edoardo Nicoli
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Publication number: 20200305239Abstract: 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: ApplicationFiled: March 20, 2020Publication date: September 24, 2020Inventors: Wei Wu, GREGORY SCOTT BLACKMAN, Stephane Costeux, James Neal Singletary
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Patent number: 10472482Abstract: 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: GrantFiled: April 7, 2016Date of Patent: November 12, 2019Assignee: DOW GLOBAL TECHNOLOGIES LLCInventors: Van-Chau Vo, David J. Frankowski, Anson Wong, Stéphane Costeux
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Patent number: 10322534Abstract: 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: GrantFiled: May 20, 2015Date of Patent: June 18, 2019Assignee: DOW GLOBAL TECHNOLOGIES LLCInventors: Stéphane Costeux, Daniel A. Beaudoin, Hyunwoo Kim, Devin A. Foether
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Patent number: 10093781Abstract: 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: GrantFiled: October 30, 2013Date of Patent: October 9, 2018Assignee: Dow Global Technologies LLCInventors: Kenji Matsue, Naganori Nishioka, Yoshihiro Shirakawa, Lawrence S. Hood, Shari L. Kram, Stephane Costeux, Mark A. Barger
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Publication number: 20180237574Abstract: 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: ApplicationFiled: September 20, 2016Publication date: August 23, 2018Applicant: Dow Global Technologies LLCInventors: Beverly J. Selle, Deborah A. Schutter, Megan Thomas, Stéphane Costeux
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Publication number: 20180215890Abstract: 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: ApplicationFiled: April 7, 2016Publication date: August 2, 2018Applicant: Dow Global Technologies LLCInventors: Van-Chau Vo, David J. Frankowski, Anson Wong, Stéphane Costeux
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Patent number: 9840605Abstract: 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: GrantFiled: December 27, 2013Date of Patent: December 12, 2017Assignee: Dow Global Technologies LLCInventors: Yudong Qi, Yan Li, Shana P. Bunker, Stephane Costeux, Ted A. Morgan
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Patent number: 9822230Abstract: 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: GrantFiled: March 18, 2015Date of Patent: November 21, 2017Assignee: Dow Global Technologies LLCInventors: Liang Chen, Anne M. Kelly-Rowley, Shana P. Bunker, Stéphane Costeux
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Patent number: 9718938Abstract: 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: GrantFiled: November 1, 2010Date of Patent: August 1, 2017Assignee: Dow Global Technologies LLCInventors: Stéphane Costeux, Lingbo Zhu, Christopher M. Weikart, Thomas H. Kalantar
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Patent number: 9650500Abstract: 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: GrantFiled: November 15, 2010Date of Patent: May 16, 2017Assignee: Dow Global Technologies LLCInventors: Yahong Zhang, Stéphane Costeux, Thomas H. Kalantar