Dow Global Technolgoies LLC

Ddp Specialty Electronic Materials Us, LLC

Dupont Safety & Construction, Inc.

The Dow Chemical Company

Rohm and Haas Company

Stéphane Costeux

Mark Alan Barger

Thomas H Kalantar

Shana P Bunker

Lingbo Zhu

William James Michie, Jr

Anthony Charles Neubauer

Todd A Hogan

Lawrence S Hood

James Dean Katsaros

Daniel A Beaudoin

Kshitish A Patankar

Wazir Nobbee

Michal Elizabeth Porter

Hyun K Jeon

Yan Li

Mridula Babli Kapur

Shih-Yaw Lai

Liang Chen

Dane Chang

Yiyong He

Ted A Morgan

Wenyi Huang

Chau Van Vo

Shari Kram

Gary D Parsons

Anne M Kelly-Rowley

Bruce A King

Yahong Zhang

Ashish Sen

Yuen-Yuen D Chiu

Robert Baumann

Vanni Parenti

Deborah A Schutter

Michael J Radler

Patrick Louis Heider

Megan Marie Thomas

Michael H Mazor

Felipe B Martinez

Felipe Martinez Barreneche

William A Heeschen

Gerald F Billovits

Van-Chau Vo

Billy G Smith

Dennis R Lantz

Yudong Qi

Hyunwoo Kim

Jonathan D Moore

Kenji Matsue

Yige Yin

Prasanna K Jog

YanLi Huo

Jesse C Thrower, Ii

Dachao Li

Bryn Thomas

William Brian Lieburn

Christopher M Weikart

Ning Chai

John Neill

William J Michie

David J Frankowski

Beverly J Selle

Naganori Nishioka

Anson Wong

Devin A Foether

Edoardo Nicoli

Yoshihiro Shirakawa

Attiganal N Sreeram

Jai Venkatesan

Richard Cesaretti

Hong Fei Guo

Beverly Selle

Felipe F Martinez

Mridula (babli) Kapur

Shari L Kram

Mark A Barger

Jesse C Thrower Ii

Daniel S Woodman

Megan Thomas

Cheng Chen

Jing Chen

Wei Liu

Beilei Wang

Luigi Bertucelli

Christopher Weikart

Anthony C Neubauer

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.

Composite structural board and wall systems containing same

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.

Amorphous polyester composition and method of making

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.

Chemically modified polyesters and process for making

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 &#x2014;NCO functionalities per molecule as determined by ASTM D7252-06(2011)e1; and a catalyst.

One-component fenestration foam formulation demonstrating low initial shrinkage

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.

Thermally insulating foam with vertically elongated cells

Prepare nanofoam by: (a) providing a mold () with a mold cavity () defined by mold walls defining a sealable port (); (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 () while maintaining a temperature and pressure at least 690 kilopascals above the saturation pressure and controlling the pressure in the mold cavity () by expanding a wall of the mold; and (d) releasing pressure around the foamable mixture by moving a mold wall () 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.

Mold process for making nanofoam

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.

Foamed styrenic polymers containing a brominated styrene-butadiene copolymer and having enhanced cell size homogeneity

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.

Flame-retardant copolymers of dialkyl (meth)acryloyloxyalkyl phosphate or dialkyl (meth)acryloyloxyalkyl phosphonate monomers and polymer foams based made therefrom

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&#xb0; 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.

Nanocellular foam with solid flame retardant

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&#xd7;10sites 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.

Nanoporous polymeric foam having high porosity

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.

Nanoporous particles in a hollow latex matrix

A polymeric foam article with a polymer matrix defining multiple cells therein has a polymer component with a first polymer that is a polyhedral oligomeric silsesquioxane grafted polymer that has a weight-average molecular weight of two kilograms per mole or higher and 200 kilograms per mole or lower.

Polyhedral oligomeric silsesquioxane grafted polymer in polymeric foam

This invention relates to coupling of polyethylene resins, more specifically coupling of polyethylene resins for use in extruded profiles, especially extruded profiles for sheet extrusion and cut sheet thermoforming applications and geomembranes. The process involves conveying a HDPE resin through an extruder, wherein the extruder comprises a feed zone, a first melt zone downstream of the feed zone, a second melt zone downstream of the first melt zone, and a third melt zone downstream of the second melt zone. The resin is melted in the first zone, contacted with oxygen in the second melt zone, and contacted antioxidant in the third melt zone.

Process for making tailored polyetheylene resins for sheets

A polymeric foam has a thermoplastic polymer matrix defining multiple cells, the foam characterized by: (a) the polymer matrix having greater than 50 weight-percent copolymer containing at least two different monomers at least one of which is a methacrylate monomer, each monomer having a solubility parameter lower than 20 (megaPascals)and a chemical composition where twice the mass fraction of oxygen plus the mass fraction of nitrogen, fluorine and silicon is greater than 0.2; wherein the monomers comprise at least 90 weight-percent of all monomers in the copolymer; (b) at least one of the following: (i) a nucleation site density of at least 3&#xd7;10effective nucleation sites per cubic centimeter of foamable polymer composition; (ii) an average cell size of 300 nanometer or less; (c) a porosity percentage greater than 30%; (d) an absence of nano-sized nucleating additive; and (e) a thickness of at least one millimeter.

Nanoporous polymeric foam having high cell density without nanofiller

Growing community of inventors

Midland, MI, United States of America

Stéphane Costeux