N=c=x Reactant Having At Least Two C-nh-c(=x)- Groups, E.g., Prepolymers, Etc. Patents (Class 521/159)
  • Patent number: 10774172
    Abstract: A crystalline non-reinforced thermoplastic polyurethane composition having a high flexural modulus comprises 5% to 25% of a hydroxyl-functional polyol intermediate having a weight average molecular weight of 250 to 3000 and 75% to 95% hard segment comprising an unbranched, unsubstituted, linear chain diol and an aromatic isocyanate.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: September 15, 2020
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Qiwei Lu, Julius Farkas, Chetan M. Makadia, Alexander Jiaokai Jing
  • Patent number: 10710410
    Abstract: Polyurethane elastomeric compositions for making tires, methods for making said tires and tires made of said polyurethane elastomers. Said tires are in particular suitable for use as tires for low speed vehicles such as bicycle tires.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: July 14, 2020
    Assignee: HUNTSMAN INTERNATIONAL LLC
    Inventors: Johan Van Dyck, Dieter Niclaes, Siddharth Sahu
  • Patent number: 10703847
    Abstract: A polyether having a functional group that is reactive to isocyanate with at least one polyisocyanate, which has an average isocyanate functionality in the range of 2.4 to 3.5, and at least one vinyl compound, which has a functional group that is reactive to isocyanate, wherein the molar ratio of polyether to vinyl compound lies in the range of 3:1 to 1:3 and the ratio of the sum of the molar quantities of polyether and vinyl compounds to isocyanate groups lies in the range of 1.5:1 to U.5. Corresponding vinylterminated prepolymers have the advantage of low visocity together with good water solubility and therefore can be used advantageously for applications as injection agents.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: July 7, 2020
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Markus Haufe, Max Hug
  • Patent number: 10689481
    Abstract: A polyisocyanate composition contains a modified product of xylylene diisocyanate and a modified product of pentamethylene diisocyanate, and/or a modified product of the xylylene diisocyanate and the pentamethylene diisocyanate. The ratio of the pentamethylene diisocyanate with respect to the total amount of the xylylene diisocyanate and the pentamethylene diisocyanate is 60 mol % or more and 95 mol % or less.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: June 23, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Toshihiko Nakagawa, Aya Nakagawa, Shinji Kiyono, Hirokazu Morita, Satoshi Yamasaki
  • Patent number: 10639861
    Abstract: A sole mold for manufacturing a sole from a plurality of particles includes at least one first opening for supplying the particles, and at least two second openings for supplying a gaseous and/or liquid medium to bond and/or fuse the particles together. At least a portion of the sole mold is manufactured by an additive manufacturing method.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: May 5, 2020
    Assignee: adidas AG
    Inventors: Tru Huu Minh Le, Christopher Robertson, Christopher Edward Holmes, Norbert Reuber, Maximilian Philipp Kurtz, Rene Hubert, Christian Richardt
  • Patent number: 10442884
    Abstract: A polyurethane dispersant is described that comprises a reaction product of a polyisocyanate with a) a component supplying a anchoring imide group wherein the carbonyl groups of the imide are bonded to a fused or non-fused aromatic ring, b) at least one solvent-solubilizing chain, and other optional components to build molecular weight or modify the interaction of the dispersant with various particulates or continuous media.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: October 15, 2019
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Andrew J. Shooter, Dean Thetford, Stuart N Richards, Robert A. Jennings
  • Patent number: 10428173
    Abstract: Disclosed are high strength polyurethane foam compositions and methods of making them. In one aspect, the inventive polyurethane foams include strength enhancing additives comprising one or more polycarbonate polyols derived from the copolymerization of CO2 and one or more epoxides. In one aspect, the inventive methods include the step of substituting a portion of the polyether polyol in the B-side of a foam formulation with one or more polycarbonate polyols derived from the copolymerization of CO2 and one or more epoxides.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: October 1, 2019
    Inventors: Scott D. Allen, Vahid Sendijarevic, Aisa Sendijarevic
  • Patent number: 10427505
    Abstract: A roof module for a motor vehicle comprises an RTM frame and a Class-A covering layer, which at least partially covers the frame and is made of polyurethane. A method for manufacturing a roof module comprises the following steps: Initially, a fiber mat is put into a first mold. Then, a reactive resin system is introduced into the closed mold and the resin cures, so that a blank is formed. The blank is put into a second mold, into which subsequently polyurethane is introduced in the open condition. The polyurethane expands, wherein it at least partially forms a Class-A surface.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: October 1, 2019
    Assignee: ROOF SYSTEMS GERMANY GMBH
    Inventors: Maximilian Kirchner, Matthias Ludwig, Joachim Röder, Markus Waroch
  • Patent number: 10344123
    Abstract: A polycarbonate diol is provided, including three kinds of repeating diol units, wherein one of the repeating diol units is chosen from an alkoxylated diol monomer.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: July 9, 2019
    Assignee: Dairen Chemical Corporation
    Inventors: Fu-Shen Lin, June-Yen Chou, Hsing-Yun Wang, Chih-Jung Chen, Wei-Lun Hsieh
  • Patent number: 10308836
    Abstract: Polymeric dispersants are disclosed that include a urethane backbone at least one pendantly attached imide group, wherein the carbonyl of the imide are chemically bonded to a single or fused aromatic ring. The aromatic ring can be substituted with various electron withdrawing or releasing groups. The dispersant also includes solvent-solubilizing chains of polyether, polyester, polyacrylate, and or polyolefin Desirably, the imide groups are derived from an imide that has two isocyanate reactive groups such that the imide is attached to the urethane backbone at two separate locations.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: June 4, 2019
    Inventors: Andrew J. Shooter, Dean Thetford, Robert A. Jennings, Stuart N. Richards
  • Patent number: 10308898
    Abstract: The present invention discloses a method of imparting water repellency and optionally stain release to fibrous substrates by contacting a fibrous substrate with a non-fluorinated laundry treatment composition inside a laundry machine. The laundry treatment composition contains a hydrophobic organic urethane compound having a urethane linkage and the residue of a substituted cyclic or acyclic sugar alcohol. Laundry additive compositions containing a first laundry treatment composition, having a hydrophobic organic urethane compound, and a second laundry treatment composition are also included.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: June 4, 2019
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: John Christopher Sworen, Gerald Oronde Brown, Sara Lyons, Ewa Kohler
  • Patent number: 10246608
    Abstract: The present invention is an aqueous composition comprising at least one hydrophobic compound having at least one linkage of Formula I: —NHC(O)—X—??(I) wherein X is the residue of a cyclic or acyclic sugar alcohol which is substituted with at least one —R1; —C(O)R1; —(CH2CH2O)n(CH(CH3)CH2O)mR2; —(CH2CH2O)n(CH(CH3)CH2O)mC(O)R1; or mixtures thereof; where the cyclic or acyclic sugar alcohol is selected from a saccharide, reduced sugar, aminosaccharide, aldonic acid, or aldonic acid lactone; wherein each n is independently 0 to 20; each m is independently 0 to 20; m+n is greater than 0; each R1 is independently a linear or branched alkyl group having 5 to 29 carbons optionally comprising at least 1 unsaturated bond; each R2 is independently —H, a linear or branched alkyl group having 6 to 30 carbons optionally comprising at least 1 unsaturated bond, or mixtures thereof.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: April 2, 2019
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: John Christopher Sworen, Gerald Oronde Brown, Mario Vincenzini, Flemming Vang Sparsoe, Ewa Kohler
  • Patent number: 10059794
    Abstract: Disclosed is a polyurethane foam composition based on polyisocyanates comprising initially at least 20 wt % mMDI and at most 24.5 wt % mTDI, a towards isocyanate polyfunctional and a towards isocyanate monofunctional compound, which composition contains a) less than 1.00 wt % residual free mMDI, b) at least 0.4 wt % total of mMDI of which at least one isocyanate group has been reacted with a monofunctional compound, c) wherein the polyurethane prepolymer composition is having an isocyanate index of at least 105 and at most 350, d) wherein the equivalents ratio of functional groups of the monofunctional compounds relative to the amount of the isocyanate functional groups initially present is at least 6.5%, and e) wherein the equivalents ratio of towards isocyanate tri- and higher functional reactive compounds relative to the isocyanate functional groups initially present is at most 6.50%. Further disclosed is a suitable prepolymer, production methods and uses.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: August 28, 2018
    Assignee: SOUDAL
    Inventors: John Verstegen, Bart Vervoort, Peter Geboes
  • Patent number: 9994690
    Abstract: A method for producing polyHIPE porous monoliths, of the polyHIPE type or in the form of a rigid foam, by hardening solutions of condensed tannins in the presence of oil and/or air or in the presence of a non-water-miscible volatile solvent and/or air. Also disclosed is the use of these materials in the areas of catalysis, chromatography, heat and sound insulation, tissue engineering and medication release and as a floral foam.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: June 12, 2018
    Assignees: UNIVERSITE DE LORRAINE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Alain Celzard, Andrzej Szczurek, Vanessa Fierro, Antonio Pizzi
  • Patent number: 9988563
    Abstract: The invention relates to a composition obtained by simultaneously mixing at least one isocyanate, at least one polyether and at least one amino resin, wherein said polyether comprises at least one ethylene oxide moiety and at least one isocyanate reactive group selected from the group comprising hydroxyl, amino, epoxy, and thiol, and wherein said amino resin is the condensation product of an aldehyde with a compound selected from the group comprising urea, melamine, benzoguanamine, glycoluril, acetoguanamine and mixtures thereof.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: June 5, 2018
    Assignee: HUNTSMAN INTERNATIONAL LLC
    Inventors: Servaas Holvoet, Daniele Pratelli, Christopher Phanopoulos
  • Patent number: 9908984
    Abstract: A polyurethane foam having an initial UL 94 vertical flame classification of V-0 and maintaining a UL 94 vertical flame classification of V-0 after one week of heat aging at 150° C. is formed as the reaction product of an isocyanate component and an isocyanate-reactive component in the presence of a blowing agent. The isocyanate component includes an isocyanate-containing compound and a non-reactive phosphorous compound that is present in an amount ranging from 1 to 20 weight percent based on the total weight of the polyurethane foam. The isocyanate-reactive component includes a polyether polyol and expandable graphite that is present in an amount ranging from 3 to 30 weight percent based on the total weight of the polyurethane foam.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: March 6, 2018
    Assignee: BASF SE
    Inventors: Raymond Neff, Liying Wang, Alexander Gershanovich
  • Patent number: 9814187
    Abstract: Process for making a foam suitable as plant growth medium by reacting a polyisocyanate, a polyether polyol mixture and water at an isocyanate index of 90-150 wherein the polyol mixture used comprises at least 2 polyols and wherein the polyol mixture comprises less than 50% by weight oxyethylene calculated on the weight of the polyol mixture.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: November 14, 2017
    Assignee: HUNTSMAN INTERNATIONAL LLC
    Inventors: Johan Antoine Stefaan Macken, Loredana Moro, Johannes Eduward Irene Marie Josefa Clerinx, Annelies Vandevelde
  • Patent number: 9738747
    Abstract: A one component isocyanate prepolymer mixture for formulating a polyurethane product in a single step process, with monomeric methylene diphenyl diisocyanate (MDI) content in the mixture not exceeding 3%, preferably less than 2%, more preferably less than 1% of the total weight. The mixture contains monofunctional alcohol, an isocyanate component or isocyanate mixture component, propellant, catalyst, stabiliser, and one or more polyols. The monofunctional alcohol constitutes ethylene glycol ethers or propylene glycol ethers. A method for formulating a one component polyurethane foam on the basis of the mixture is disclosed.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: August 22, 2017
    Assignee: Selena Labs Sp. z o.o.
    Inventors: Przemyslaw Dwornicki, Marek Barth, Tomasz Pawlus
  • Patent number: 9695266
    Abstract: A wettable, high strength, ether foam, particularly suited for ink holders, that includes a prepolymer that is formed before adding it to other components in the foam formulation.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: July 4, 2017
    Assignee: Foamtec International Co., Ltd.
    Inventors: Joseph W. Lovette, Saranya Maungnoi
  • Patent number: 9562181
    Abstract: The present invention relates to two-component polyurethane compositions which on the one hand have a long open time and, even after extended exposure to a climate with high atmospheric humidity (e.g., 70% relative humidity), even after 40 minutes and in particular even after 60 minutes, can still be glued and cured to form polymers having high mechanical strength. The composition comprises castor oil, at least one polyol having 5-8 hydroxyl groups, a mixture of two different polyether alcohols and/or polyester polyols on the basis of castor oil or soybean oil and at least one polyisocyanate. The two-component polyurethane compositions are suitable in particular for non-positive filling joints or gaps that are joined by large-surface area structural gluing, in particular of vane half shells of rotor blades for wind power plants.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: February 7, 2017
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Martin Pind, Bodil Olsen
  • Patent number: 9512260
    Abstract: The invention relates to a storage-stable resin film based on polyurethane systems having a very high characteristic number and fiber-composite components (composite components, molded bodies) produced therefrom by compressing the resin film, in combination with fiber-reinforced materials such as woven fabrics and fleece, at high temperatures and under pressure, and to a method for the production thereof.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 6, 2016
    Assignee: Covestro Deutschland AG
    Inventors: Florian Hupka, Marcel Schornstein, Dirk Wegener, Harald Rasselnberg
  • Patent number: 9458300
    Abstract: The invention relates to a method for producing hydrophilic, aliphatic polyurethane foams. The invention further relates to special compositions for producing polyurethane foams either using the method according to the invention or using the polyurethane foams obtained from the compositions according to the invention, and to the use of the polyurethane foams as a wound dressing, cosmetic item, or incontinence product.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: October 4, 2016
    Assignee: Covestro Deutschland AG
    Inventors: Sebastian Dörr, Meike Niesten
  • Patent number: 9382704
    Abstract: A protective air barrier air barrier sealant and methods of applying the same, including a high density polyurethane chemistry provided in an amount, volume, and density effective for providing a protective air barrier for an enclosure, wherein the polyurethane material is combined with at least one UV, fire and antimicrobial protectant for providing UV protection to UV-exposed surfaces.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: July 5, 2016
    Inventor: William Davis Collins
  • Patent number: 9364577
    Abstract: The invention relates to a specific composition comprising A) isocyanate-functional prepolymers obtainable by reaction of A1) aliphatic diisocyanates with A2) di- to hexa-functional polyalkylene oxides having an ethylene oxide content of 50 to 100 mol %, based on the total amount of the oxyalkylene groups present, B) an aqueous polyurethane suspension, an aqueous polyacrylate suspension or aqueous silica sols, especially for production of hydrophilic, aliphatic polyurethane foams. The invention further provides a process for producing a hydrophilic, aliphatic polyurethane foam, based on the inventive composition, a polyurethane foam obtainable by the process and a wound dressing comprising the polyurethane foam.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: June 14, 2016
    Assignee: Covestro Deutschland AG
    Inventors: Meike Niesten, Sebastian Dörr, Sascha Plug, Jan Schönberger
  • Patent number: 9279054
    Abstract: The present invention relates to a novel sound-absorbent foam system in the form of an open-cell mineral-organic material, which can even attain building material class B1 according to DIN 1402 and is used for reducing sound levels, in particular in interior spaces. The material is distinguished by containing lignosulphonate.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: March 8, 2016
    Assignee: Preform GmbH
    Inventors: Uwe Schoenfeld, Klaus Dippon
  • Patent number: 9228048
    Abstract: An odor-absorbing foam composition comprising a cyclodextrin crosslinked with a polyurethane prepolymer. In one embodiment, the foam includes a ratio of the cyclodextrin to the polyurethane prepolymer selected to result in formation of the foam. The odor-absorbing foam may be used in a personal care product or wound care. A process for preparing a foam, including providing a cyclodextrin; providing a polyurethane prepolymer; combining the cyclodextrin with the polyurethane prepolymer; and allowing the polyurethane prepolymer to react with water and crosslink the cyclodextrin to form the foam. A process for preparing an odor-absorbing foam article such as a personal care product, including preparing the foam and applying it or the components thereof to a suitable substrate.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: January 5, 2016
    Assignee: Avery Dennison Corporation
    Inventors: Anne Marie Wibaux, Bert Paesen
  • Patent number: 9163109
    Abstract: The invention relates to a method for producing hydrophilic, aliphatic polyurethane foams having a low bulk density. The invention also relates to a hydrophilic, aliphatic polyurethane foam which can be obtained according to said method and to the use thereof as a wound dressing, incontinence product or as a cosmetic article.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: October 20, 2015
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Meike Niesten, Sebastian Dörr
  • Patent number: 9150715
    Abstract: Exterior automotive article comprising a composition comprising a polypropylene, an elastomeric copolymer, and a mineral filler, wherein said polypropylene (PP) has a comonomer content of equal or below 1.0 wt.-%, the comonomers are ethylene and/or at least one C4 to C20 a-olefin, and <2,1> erythro regiodefects of equal or more than 0.4 mol.-%, said elastomeric copolymer (EC) comprises units derived from ethylene and at least one C3 to C10 a-olefin, said composition (C) has a melt flow rate MFR2 (230° C.) in the range of 5 to 80 g/10 min.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: October 6, 2015
    Assignee: BOREALIS AG
    Inventors: Michael Tranninger, Klaus Lederer
  • Patent number: 9062149
    Abstract: The present invention relates to high-value polyurethane (PUR) and polyurethaneurea elastomers, which can be processed in a particularly simple manner by use of low-viscosity prepolymers based on naphthalene 1,5-diisocyanate, and to a process for production thereof.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: June 23, 2015
    Assignee: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Florian Hupka, Stephan Reiter, Hartmut Nefzger, Jens Krause
  • Patent number: 9023908
    Abstract: The present invention relates to a method for adsorbing and/or absorbing oil, by bringing oil into contact with a polyurethane sponge with excellent mechanical properties.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: May 5, 2015
    Assignee: BASF SE
    Inventors: Nils Mohmeyer, Ralf Fritz, Bernd Bruchmann, Anna Cristadoro, Marcus Leberfinger, Antje van der Net
  • Patent number: 9018271
    Abstract: Embodiments of the invention provide for polyurethane flexible foams that do not require a post production crushing step. These “self crushing” flexible foams neither collapse, skin peel, nor form voids upon demolding, and yet maintain excellent physical properties such as uniform cell sizes, high quality surface appearance, compression set, resistance to fatigue, etc.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: April 28, 2015
    Assignee: Dow Global Technologies LLC
    Inventor: Alessia Battistini
  • Patent number: 9006304
    Abstract: The present invention relates to aqueous polyurethane-polyurea dispersions which stabilize a foam—produced by mechanical expansion—without addition of further foam-stabilizing components in such a way that aqueous foams are obtainable which are stable both during temporary storage and during processing, so that they can be applied in the form of foam also by customary application methods and substantially retain the foam structure even after drying.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: April 14, 2015
    Assignee: Stahl International B.V.
    Inventor: Juergen Muenter
  • Patent number: 8993648
    Abstract: A polishing pad capable of maintaining a high level of dimensional stability during absorption of moisture or water includes a polishing layer including a polyurethane foam having fine cells, wherein the polyurethane foam includes a cured product of a reaction of an isocyanate-terminated prepolymer (A), a polymerized diisocyanate, and a chain extender, and the isocyanate-terminated prepolymer (A) includes an isocyanate monomer, a high molecular weight polyol (a), and a low molecular weight polyol. A method for manufacturing such a polishing pad includes mixing a first component containing an isocyanate-terminated prepolymer with a second component containing a chain extender and curing the mixture to form a polyurethane foam. The pad so made is used in the manufacture of semiconductor devices.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: March 31, 2015
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventors: Yoshiyuki Nakai, Tsuyoshi Kimura, Atsushi Kazuno, Kazuyuki Ogawa, Tetsuo Shimomura
  • Publication number: 20150087737
    Abstract: A reaction system for forming a hydrophilic polyurethane foam for liquid based cleaning applications includes a composition that has a prepolymer component and an aqueous component. The prepolymer component is a reaction product of an isocyanate component that includes diphenylemethane diisocyanate (MDI) and a polyol component that includes a polyoxyethylene-polyoxypropylene polyol that has an polyoxyethylene content greater than 65 wt %, based on a total weight of the polyoxyethylene-polyoxypropylene polyol. The aqueous component includes at least 60 wt % of water and at least 0.5 wt % of a surfactant, based on a total weight of the aqueous component. A weight ratio of the prepolymer component to the aqueous component in the composition is from 0.5:2 to 2:0.5, the composition has a cream time of less than 20 seconds and a tack free time of less than 7 minutes, and the hydrophilic polyurethane foam for liquid based cleaning applications has a wet tear strength of at least 500 N/m.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 26, 2015
    Inventors: Yasmin N. Srivastava, Subodh P. Jagtap, Venkat S. Minnikanti, Rogelio Gamboa, Dwight Latham, Rajat Duggal
  • Patent number: 8980966
    Abstract: The invention relates to hydrophilic aliphatic polyurethane foams obtained by reacting special prepolymers having a low monomer concentration and hydrophilic polyisocyanates in the presence of water. The absorptive properties make said polyurethane foams particularly suitable for producing wound dressings, cosmetic articles, or incontinence products.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: March 17, 2015
    Assignee: Bayer MaterialScience AG
    Inventors: Sebastian Dörr, Meike Niesten
  • Patent number: 8975306
    Abstract: A viscoelastic foam system is provided having an amine-based polyoxypropylene extended polyol to impart strength, recoverability and endurance to the foam, and an appropriately selected non-amine-based polyol to provide flexibility to the foam. The combination of amine-based propylene oxide extended polyol and non-amine-based polyol provides a viscoelastic semi-rigid foam with excellent impact and recovery properties, recovering to substantially 100% of its initial volume and shape following an impact, yet with sufficient rigidity and stiffness so that it is effective at absorbing multiple impacts. A method of making the above viscoelastic foam is also provided.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: March 10, 2015
    Assignee: Intellectual Property Holdings, LLC
    Inventor: Charles M. Milliren
  • Patent number: 8946315
    Abstract: The invention relates to hydrophilic, aliphatic polyurethane foams, which are accessible by reacting hydrophilic polyisocyanates in the presence of water. Due to the absorption properties thereof, the polyurethane foams are in particular suited for producing wound dressings, cosmetic articles or incontinence products.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: February 3, 2015
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Meike Niesten, Sebastian Dörr
  • Publication number: 20150020573
    Abstract: This invention relates to impact absorbing foams. These foams comprise a polymeric foam and ceramic particulates dispersing the foam. These foams have numerous uses, including, for example, as interior pads for football helmets, and the like, for reducing head injuries.
    Type: Application
    Filed: October 9, 2014
    Publication date: January 22, 2015
    Inventors: Karl-Heinz Schofalvi, Ji Seung Kim, Christopher James Durning
  • Patent number: 8927614
    Abstract: The invention relates to a process for producing polyurethanes by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups, wherein the compounds b) having at least two hydrogen atoms which are reactive toward isocyanate groups comprise at least one polyether alcohol b1) which has been prepared by reaction of an aromatic amine b1a) with propylene oxide using an amine b1b) which is different from b1a) as catalyst.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: January 6, 2015
    Assignee: BASF SE
    Inventors: Marc Fricke, Markus Schütte, Sirus Zarbakhsh, Johann Klassen
  • Patent number: 8927613
    Abstract: The present invention relates to cellular polyisocyanate polyaddition products whose density to DIN EN ISO 845 is from 200 to 800 kg/m3, and also to prepolymer composed of at least one diisocyanate (a) and of at least one polyether alcohol (b), where the at least one polyether alcohol (b) comprises the following components: (b1) aliphatic polyether alcohols whose number-average molar mass is from 300 to 1000 g/mol, (b2) aliphatic polyether alcohols whose number-average molar mass is from 2000 to 10 000 g/mol, and (b3) aliphatic polyether alcohols whose number-average molar mass is from 10 000 to 100 000 g/mol, to a process for its production, to a cellular polyisocyanate polyaddition product thus produced, and to its use as damping elements in vehicle construction.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: January 6, 2015
    Assignee: BASF SE
    Inventors: Frank Prissok, Joern Duwenhorst, Michael Harms, Sven Lasai
  • Patent number: 8921434
    Abstract: A polylactic acid composition is produced with an MI value of 0.05 or more and 5 or less, the MI value being measured at 190° C. under a load of 21.6 kg in accordance with JIS K7210 (ISO 1133). A polylactic acid is crosslinked with a polyisocyanate to generate a cross-linked polylactic acid, including a large cross-linked polylactic acid molecule which inhibits foaming. The cross-linked polylactic acid is mechanically grinded-by applying a shear force to decrease a molecular weight of the large cross-linked polylactic acid molecule. The amount of the polyisocyanate combined is 0.4 to 5% by weight based on the polylactic acid. The grinding is conducted in supercritical condition of an inert gas. A foam molded article is made from the polylactic acid composition.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: December 30, 2014
    Inventors: Kosuke Uchiyama, Kazunori Tsuda, Tenya Suzuki
  • Publication number: 20140378031
    Abstract: The purpose of the present invention is to provide: a polishing pad which has improved dressing properties, while maintaining the hardness; or a polishing pad which does not easily make a scratch on the surface of an object to be polished, while having improved dressing properties. A polishing pad of the present invention is characterized by having a polishing layer that is formed of a polyurethane resin foam or an unfoamed polyurethane resin, and is also characterized in that the polyurethane resin foam or the unfoamed polyurethane resin contains, as starting material components, (A) an isocyanate component, (B) a polyol component and (C) an aromatic compound that has one hydroxyl group and/or an aromatic compound that has one amino group.
    Type: Application
    Filed: August 24, 2012
    Publication date: December 25, 2014
    Applicant: TOYO TIRE & RUBBER CO., LTD.
    Inventors: Akinori Sato, Masato Doura
  • Patent number: 8906975
    Abstract: A conventional flexible polyurethane foam, made using methylene diphenyl diisocyanate (MDI), having a bulk foam density in the range of 2.5 pounds per cubic foot or lower and having a foam hardness or IFD in the range of 10 to 90 lb/50 in2. The present invention is also directed to the method for the making thereof.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: December 9, 2014
    Assignee: Hickory Springs Manufacturing Company
    Inventors: Dimitrios V. Dounis, Dwayne Lewis Beard, Camden Eugene McLaughlin, Kimberly R. Fair
  • Patent number: 8883869
    Abstract: This invention relates to impact absorbing foams. These foams comprise a polymeric foam and ceramic particulates dispersing the foam. These foams have numerous uses, including, for example, as interior pads for football helmets, and the like, for reducing head injuries.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: November 11, 2014
    Assignee: Provee Technologies, LLC
    Inventors: Karl-Heinz Schofalvi, Ji Seung Kim, Christopher James Durning
  • Publication number: 20140329923
    Abstract: A method of making a polyurethane foam from a mixture of isocyanate modified polyol and foam-forming ingredients, wherein the isocyanate modified polyol is made by reacting at least one polyol with at least one multifunctional isocyanate, wherein the isocyanate modified polyol is a non-foamed polyol polymer having available OH groups, wherein the foam forming ingredients comprise at least a multifunctional isocyanate and a foaming agent, preferably water, and characterised in that (i) the at least one polyol from which the isocyanate modified polyol is made comprises at least one lipid-based polyol which has undergone reaction with the isocyanate in the presence of a PU gelation catalyst, and/or (ii) the isocyanate modified polyol is mixed with a lipid-based polyol prior to, or at the same time as, foaming.
    Type: Application
    Filed: July 19, 2014
    Publication date: November 6, 2014
    Applicant: GREEN URETHANES LIMITED
    Inventors: Jeffrey Philip ROWLANDS, Frans PAAP
  • Publication number: 20140330235
    Abstract: Super-soft foam materials, optionally for use as medical dressings, are provided. The pads are made of a foam prepared from NCO-terminated prepolymers in combination with an aqueous phase including fatty alcohols and alkyl polysaccharides. The foam may optionally contain at least one medicinal agent.
    Type: Application
    Filed: July 21, 2014
    Publication date: November 6, 2014
    Inventor: Hansen P. Swaniker
  • Patent number: 8865785
    Abstract: A polishing pad capable of maintaining a high level of dimensional stability upon moisture absorption or water absorption and providing high polishing rate includes a polishing layer of a polyurethane foam having fine cells, wherein the polyurethane foam includes a cured product of a reaction of (1) an isocyanate-terminated prepolymer (A) that includes an isocyanate monomer, a high molecular weight polyol (a), and a low molecular weight polyol, (2) an isocyanate-terminated prepolymer (B) that includes a polymerized diisocyanate and a polyethylene glycol with a number average molecular weight of 200 to 1,000, and (3) a chain extender.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: October 21, 2014
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventor: Yoshiyuki Nakai
  • Patent number: 8841403
    Abstract: A catalyst system which is suitable for catalyzing the production of polyurethane systems is provided. The catalyst system contains a metal salt of a carboxylic acid to whose carbonyl carbon a hydrogen atom or a hydrocarbon radical is bound, with the proviso that the carboxylic acid does not have exclusively a single ethyl or n-propyl branch in the 2 position.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: September 23, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Sarah Schmitz, Roland Hubel
  • Publication number: 20140256838
    Abstract: A wettable, high strength, ether foam, particularly suited for ink holders, that includes a prepolymer that is formed before adding it to other components in the foam formulation.
    Type: Application
    Filed: March 6, 2013
    Publication date: September 11, 2014
    Inventors: Joseph W. Lovette, Saranya Maungnoi
  • Patent number: 8822556
    Abstract: The present invention relates to a one-component, moisture-curing foam consisting of 10 to 60% by volume of at least one gas and of a one-component, moisture-curing composition Z comprising at least one polymer P having isocycanate groups and/or alkoxysilane groups and 5 to 50% by weight of carbon black, based on the total weight of the one-component, moisture-curing foam. Such foams are suitable as adhesives or sealants, for the production of coatings or for the film-filling of hollow structures, in particular in vehicle construction.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: September 2, 2014
    Assignee: Sika Technology AG
    Inventors: Sabine Erdelt, Roberto Cutri, Urs Jaeger