Patents Assigned to Dow Global Technologies
  • COMPOSITE POLYAMIDE MEMBRANE
    Publication number: 20130287946
    Abstract: A method for making a composite polyamide membrane including the steps of applying a polyfunctional amine monomer and polyfunctional acid halide monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the method is includes at least one of the following steps: i) conducting the interfacial polymerization in the presence of an additional monomer comprising an aromatic moiety at least one carboxylic acid functional group or salt thereof and a single amine-reactive functional group; and/or ii) applying such a monomer to the thin film polyamide layer. Many additional embodiments are described including applications for such membranes.
    Type: Application
    Filed: January 20, 2012
    Publication date: October 31, 2013
    Applicant: Dow Global Technologies LLC
    Inventors: Steven D. Jons, Joseph D. Koob, Mou Paul, XiaoHua Sam Qiu, Steven Rosenberg, Abhishek Roy
  • Melt Devolatilization Extrusion Process
    Publication number: 20130285271
    Abstract: Thermally sensitive polymers containing polymerizable carbon-carbon unsaturation and/or aliphatically bound halogen are devolatilized in a devolatilizing extruder. The thermally sensitive polymer is blended with a second polymer, which does not contain polymerizable carbon-carbon unsaturation or more than 5% by weight aliphatically bound halogen, and which has a molecular weight of from 25,000 to 175,000. The blend is then devolatilized in the extruder to produce a devolatilized polymer blend. Thermal degradation of the thermally sensitive polymer is minimized in this process.
    Type: Application
    Filed: October 12, 2011
    Publication date: October 31, 2013
    Applicant: Dow Global Technologies LLC
    Inventors: Eung K. Kim, Daniel A. Beaudoin, Mark A. Barger
  • Storing and distributing a feeder product
    Patent number: 8569401
    Abstract: The present invention relates to a process for the preparation of a water-moist cellulose ether composition, characterized in that water-soluble polymeric additives which contain anionic groups (WSAP), or corresponding additive mixtures, are added to the cellulose ether composition. The invention furthermore relates to water-moist cellulose ether compositions which can be prepared by such a process, and to corresponding milled and dried cellulose ether compositions. The invention also relates to the use of these WSAP or corresponding WSAP mixtures for improving the transportability of water-moist cellulose ether compositions in conveying units.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: October 29, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Meinolf Brackhagen, Marco Grossstueck, Martin Kowollik, Hartwig Schlesiger, Jan Zillmann
  • Synergistic antimicrobial composition
    Patent number: 8569315
    Abstract: A synergistic antimicrobial composition comprising: (a) 3-iodo-2-propynyl-butylcarbamate; and (b) flumetsulam. A synergistic antimicrobial composition comprising: (a) 3-iodo-2-propynyl-butylcarbamate; (b) diclosulam.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: October 29, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Emerentiana Sianawati, Sangeeta Ganguly
  • Process for reducing the average molecular weight of cellulose ethers
    Patent number: 8569479
    Abstract: A process for reducing the average molecular weight of a cellulose ether comprises the step of contacting a cellulose ether with an acid to partially depolymerize it to a lower molecular weight in a diluent comprising at least 50 weight percent of an organic hydroxylic compound having at least one hydroxy group and at least two carbon atoms.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: October 29, 2013
    Assignee: Dow Global Technologies, LLC
    Inventor: Charles B. Mallon
  • Brominated and epoxidized flame retardants
    Patent number: 8569424
    Abstract: Brominated and epoxidized organic compounds are useful flame retardants for polymers such as polystyrene. The organic compounds contain both bromine and oxirane groups, and have molecular weights of at least 1500. The brominated and epoxidized organic compounds can be prepared by sequentially brominating and epoxiding (in either order) a starting compound that contains multiple non-conjugated carbon-carbon double bonds.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: October 29, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Erin B. Vogel, Shari L. Kram, Daniel J. Murray, Bruce A. King
  • Polyolefin dispersion technology used for resin coated sand
    Patent number: 8568879
    Abstract: A polymer-coated particulate material having: a particulate substrate; and an applied compound, wherein the applied compound coats at least 50% of the surface of the particulate substrate, and wherein, at the time of application, the applied compound includes a dispersion including: a thermoplastic polymer; and a stabilizing compound. In another aspect, embodiments disclosed herein relate to a method of forming a polymer-coated particulate material, the method including the steps of: incorporating a particulate substrate and a dispersion, the dispersion comprising: a thermoplastic polymer; a stabilizing compound; and a dispersion medium selected from the group consisting of an organic solvent, water, and combinations thereof; removing at least a portion of the dispersion medium.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: October 29, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Loic F. Chereau, Julien H. J. M. Damen, Thomas Allgeuer
  • Method of testing the integrity of spiral wound modules
    Patent number: 8571296
    Abstract: Methods for testing the integrity of spiral wound modules including the introduction of pressurized gas within a sealed permeate collection tube and the detection of gas exiting at least one of the scroll faces of the module. The location(s) of gas exiting the scroll face can be correlated to defects in the module. In preferred embodiments, the subject test methods are non-destructive and can be applied to modules in either a dry or wet condition.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: October 29, 2013
    Assignee: Dow Global Technologies LLC
    Inventor: Steven D. Jons
  • Films and articles with good taste and/or odor performance
    Patent number: 8568894
    Abstract: The invention provides a film comprising at least one layer formed from a composition comprising a propylene-based polymer and a saturated compound, selected from the group consisting of aliphatic amides, hydrocarbon waxes, hydrocarbon oils, fluorinated hydrocarbons, siloxanes, and combinations thereof; and wherein the propylene-based polymer has less than 0.01 mole percent total unsaturations, as determined by 1H NMR.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: October 29, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Teresa E. Bernal-Lara, Andrea Hazlitt
  • Catalytic olefin block copolymers with controlled block sequence distribution and at least one low crystallinity hard block
    Patent number: 8569422
    Abstract: The invention is related to catalytic olefin block copolymers with a controlled block sequence distribution and at least one low crystallinity hard block. The block copolymer has a number of unique characteristics disclosed here.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: October 29, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Colin Li Pi Shan, Roger L. Kuhlman, Gary L. Rath, Pamela J. Kenny, Morgan M. Hughes, Rongjuan Cong
  • OLEFIN-BASED POLYMERS AND DISPERSION POLYMERIZATIONS
    Publication number: 20130281643
    Abstract: The invention provides a polymerization process comprising polymerizing a reaction mixture comprising one or more monomer types, at least one catalyst, and at least one solvent, to form a polymer dispersion, and wherein the at least one catalyst is soluble in the at least one solvent, and wherein the polymer forms a dispersed phase in the solvent, and wherein the at least one solvent is a hydrocarbon. The invention provides a composition comprising an ethylene-based polymer comprising at least the following properties: a) a weight average molecular weight (Mw(abs)) greater than, or equal to, 60,000 g/mole; and b) a molecular weight distribution (Mw(abs)/Mn(abs)) greater than, or equal to, 2.3.
    Type: Application
    Filed: December 21, 2011
    Publication date: October 24, 2013
    Applicant: Dow Global Technologies LLC
    Inventors: Kishori Deshpande, Ravindra S. Dixit
  • Multilayer structures having annular profiles and methods and apparatus of making the same
    Patent number: 8562885
    Abstract: Disclosed are multilayer film structures having annular profiles, and methods and apparatus of making the structures disclosed. The annular multilayer articles have a uniform thickness, at least four layers and comprise overlapped and non-overlapped circumferential areas; wherein the layer structure of the non-overlapped area is doubled in the overlapped layer. A method of making the structure includes providing a multilayer flow stream with at least four layers of thermoplastic resinous materials; feeding the multilayer flow stream to a distribution manifold of an annular die to form an annular multilayer flow stream; and removing the annular multilayer flow stream from the annular die to form the annular multilayer structure.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: October 22, 2013
    Assignee: Dow Global Technologies Inc.
    Inventors: Joseph Dooley, Jeffrey M. Robacki, Mark A. Barger, Robert E. Wrisley, Sam L. Crabtree, Calvin L. Pavlicek
  • Block composites in thermoplastic vulcanizate applications
    Patent number: 8563658
    Abstract: Embodiments of the invention provide block composites and their use in thermoplastic vulcanizate compounds.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: October 22, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Kim L. Walton, Brian W. Walther, Robert T. Johnston, Jose M. Rego, Xiaosong (Sharon) Wu
  • Phosphorus-containing compounds useful for making halogen-free, ignition-resistant polymers
    Patent number: 8563661
    Abstract: Phosphorus-containing compounds useful for flame retardant epoxy resins are disclosed. The flame retardant epoxy resins may be used to make electrical laminates. This invention is particularly useful in end use applications in which a low bromine or low halogen content is required or desired.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: October 22, 2013
    Assignee: Dow Global Technologies LLC
    Inventor: Joseph Gan
  • ENHANCED CONVERSION OF SYNGAS TO PROPYLENE
    Publication number: 20130274356
    Abstract: Conversion of synthesis gas to propylene is enhanced via a stepped process wherein a Fischer-Tropsch reaction is first carried out, followed by recovery of propylene produced thereby and then use of product ethylene and unreacted syngas in a hydroformylation reaction to produce propanol, which is then dehydrated to form additional propylene. The process enables significant enhancement of propylene yield that is efficient and makes use of ethylene that is a byproduct of Fischer-Tropsch processes that are employed primarily for production of higher olefms, such as hexene and octene. Thus, it can be carried out in conjunction with already on-line Fischer-Tropsch facilities.
    Type: Application
    Filed: December 14, 2011
    Publication date: October 17, 2013
    Applicant: Dow Global Technologies LLC
    Inventors: Peter E. Groenendijk, Cornelis Hovingh
  • PROCESSES FOR SEPARATING ONE OR MORE AMINE BYPRODUCTS FROM ONE OR MORE DESIRED AMINES
    Publication number: 20130274522
    Abstract: The present invention relates to separating one or more amine byproducts from one or more desired amines. More particularly, the invention involves forming a byproduct component with one or more amine byproducts and a first adjuvant component. The byproduct component has an enhanced separation characteristic relative to separating the amine byproducts from the desired amines in the absence of an adjuvant. Preferably, the byproduct component is separated in the presence of a second adjuvant component that preferably has a boiling point less than the boiling point of the first adjuvant component.
    Type: Application
    Filed: December 6, 2011
    Publication date: October 17, 2013
    Applicant: Dow Global Technologies LLC
    Inventors: David M. Petraitis, Stephen W. King
  • ETHYLENE ACRYLIC ACID COPOLYMER AQUEOUS DISPERSIONS FOR FRAGRANCE RELEASE IN LAUNDRY DETERGENTS
    Publication number: 20130274169
    Abstract: Described are fabric care compositions, comprising a builder and an aqueous dispersion comprising an ethylene acrylic acid copolymer and a fragrance.
    Type: Application
    Filed: December 12, 2011
    Publication date: October 17, 2013
    Applicant: Dow Global Technologies LLC
    Inventors: Chaofang Yue, David Malotky, J. Keith Harris
  • Synergistic antimicrobial composition
    Patent number: 8557266
    Abstract: A synergistic antimicrobial composition comprising: (a) a hydroxymethyl-substituted phosphorus compound selected from the group consisting of tetrakis(hydroxymethyl)phoshponium salts and tris(hydroxymethyl)phosphine; and (b) tris(hydroxymethyl)nitromethane.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: October 15, 2013
    Assignee: Dow Global Technologies LLC
    Inventor: Bei Yin
  • Oligomerized ester alkoxylate compositions
    Patent number: 8558022
    Abstract: A process results in oligomerized ester alkoxylate compositions having substantially no unsaturation, which may be useful as lubricants, heat transfer fluids, plasticizers, thickening agents, surfactants, or power transmission fluids. The steps include, in either order, oligomerization of a hydroxylated fatty acid or fatty ester and quantitative reaction of unreacted carboxylic acid or ester groups with an alcohol, with the product of either reaction then being alkoxylated in the presence of a double metal cyanide catalyst. These oligomerized ester alkoxylates may be derived from vegetable oils to ensure high levels of renewable carbons. The compositions may exhibit desirably high viscosity index, low pour point, and high levels of renewable carbons.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: October 15, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Daniele Vinci, Jochem Kersbulck
  • Isothermal multitube reactors and processes incorporating the same
    Patent number: 8558041
    Abstract: The present invention provides isothermal multitube reactors suitable for the production of chlorinated and/or fluorinated propene and higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes. The reactors utilize a feed mixture inlet temperature at least 20° C. different from a desired reaction temperature.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: October 15, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Max M. Tirtowidjojo, Hua Bai, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt F. Hirsekorn, Manfred Kokott, William J. Kruper, Jr., Thomas U. Luebbe, Avani M. Patel, Shirley S. Sexton, Peter Wenzel, Marcus Wobser