Patents Examined by Melissa Rioja
  • Patent number: 11369895
    Abstract: Formation of low-crystallinity phytosterol nanoparticles via cooling-controlled supercritical carbon dioxide (SC—CO2) impregnation of phytosterols into biodegradable nanoporous starch aerogels and methods of preparing these aerogels are disclosed. The nanoporous starch aerogels increase water dissolution and bioaccessibility of the phytosterols, thereby making them available for preparation of high nutraceutical value foods.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: June 28, 2022
    Assignee: NUtech Ventures
    Inventor: Ozan Nazim Ciftci
  • Patent number: 11359046
    Abstract: An object of the present invention is to provide a polyurethane composition, in which reduction in the strength of the foam is suppressed when the foam has been greatly deformed. The present invention relates to a polyurethane composition comprising a base resin and a curing agent, wherein the base resin comprises a compound (A-1) comprising a polyalkylene skeleton comprising neither an aromatic skeleton nor an alicyclic skeleton, and having two or more functional groups having an active hydrogen atom, a compound (A-2) comprising an aromatic skeleton and/or alicyclic skeleton, and having two or more functional groups having an active hydrogen atom, a blowing agent (B), and an amine-based catalyst (C); a polyurethane foam therefrom; and a method for soundproofing and reinforcing a vehicle.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: June 14, 2022
    Assignee: Sunstar Engineering Inc.
    Inventors: Kiichi Yamashita, Tatsuya Wakamori
  • Patent number: 11345775
    Abstract: The present invention relates to a method for producing polyurethane foams by reacting an isocyanate component with an isocyanate-reactive component comprising at least one polyethercarbonate polyol, the reaction taking place in the presence of a component K selected from one or more compounds from the group consisting of K1 esters of mono- or polybasic carboxylic acids whose (first) dissociation has a pKa of 0.5 to 4.0, K2 mono-, di- and polysulfonates of mono- and polyfunctional alcohols, and K3 one or more compounds from the group consisting of K 3.1 esters of phosphoric acid, phosphonic acid, phosphorous acid, phosphinic acid, phosphonous acid and phosphinous acid, these esters each containing no P—OH group, K3.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: May 31, 2022
    Assignee: Covestro Deutschland AG
    Inventors: Bert Klesczewski, Jörg Hofmann, Karsten Malsch, Nicole Welsch, Klaus Lorenz, Hartmut Nefzger, Kai Laemmerhold
  • Patent number: 11342503
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, the electron transport region including an electron auxiliary layer, wherein the hole transport region includes at least one copolymer selected from i) a first copolymer of a first compound and a second compound and ii) a second copolymer of a third compound and a fourth compound, wherein the first compound and the second compound are each independently selected from compounds represented by Formula 1, and the third compound and the fourth compound are each independently selected from compounds represented by Formula 2, and wherein the electron auxiliary layer includes a metal oxide.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: May 24, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jaekook Ha
  • Patent number: 11325222
    Abstract: An embodiment relates to a porous polyurethane polishing pad for use in a chemical mechanical planarization (CMP) process of semiconductors and a process for preparing the same. In the porous polyurethane polishing pad, the polishing performance (or polishing rate) thereof can be controlled by adjusting the size and distribution of pores in the polishing pad.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: May 10, 2022
    Assignee: SKC solmics Co., Ltd.
    Inventors: Hye Young Heo, Jang Won Seo, Hyuk Hee Han
  • Patent number: 11319402
    Abstract: The invention relates to a method for producing a polyisocyanate polymer and to the polyisocyanate polymer obtainable from the method and to the use thereof as part of a two-stage method for producing a polyisocyanurate plastic, in particular for producing coatings, films, semi-finished products or molded parts containing such a polyisocyanurate plastic.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: May 3, 2022
    Assignee: COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
    Inventors: Heiko Hocke, Mathias Matner, Dirk Achten, Hans-Josef Laas, Dieter Mager
  • Patent number: 11306192
    Abstract: A foam that includes a polylactide polymer in the form of a star polymer having at least three arms. The foam is an open cell foam having a density no greater than 0.1 g/cm3.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: April 19, 2022
    Assignee: Regents of the University of Minnesota
    Inventors: Philip T. Dirlam, David J. Goldfeld, Marc A. Hillmyer
  • Patent number: 11279825
    Abstract: In the composition according to the embodiment, the composition of oligomers that constitute the chains in a urethane-based prepolymer may be adjusted to control the physical properties thereof such as gelation time. Thus, since the micropore characteristics, polishing rate, and pad cut rate of a polishing pad obtained by curing the composition according to the embodiment may be controlled, it is possible to efficiently manufacture high-quality semiconductor devices using the polishing pad.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: March 22, 2022
    Assignee: SKC solmics Co., Ltd.
    Inventors: Eun Sun Joeng, Hye Young Heo, Jang Won Seo, Jong Wook Yun
  • Patent number: 11267935
    Abstract: This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure. The disclosure provides aromatic polyester polyether polyols and compositions comprising such polyols. The disclosed aromatic polyester polyether polyols and compositions including same are the products of the transesterification reaction of polyethylene terephthalate (“PET”) and an ethoxylated triol, namely glycerin or trimethylolpropane, wherein the degree of ethoxylation is from 1 to 9 moles. At least some of the PET used to generate the aromatic polyester polyether polyols is derived from recycled PET. The disclosed aromatic polyester polyether polyols have utility in preparing polyurethane materials, for example.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: March 8, 2022
    Assignee: Talaco Holdings, LLC
    Inventors: Frank A. Queen, Robert Keith Salsman, Bennett McDonald Pearson
  • Patent number: 11261286
    Abstract: The present disclosure relates to a method of making polyurethane foam, the method comprising providing a polyol mixture comprising polyether polyol and unmodified vegetable oil having a hydroxyl number of less than 10; and reacting isocyanate with the polyol mixture to form a polyurethane foam, wherein the unmodified vegetable oil does not react and does not form part of the polyurethane foam. The present disclosure also relates to polyurethane formed by the method and polyurethane compositions.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: March 1, 2022
    Assignee: LEAR CORPORATION
    Inventors: Robert D. Dawe, Edmund J. Madaj, Ashford A. Galbreath, Asad S. Ali
  • Patent number: 11261317
    Abstract: A polyolefin composition is foamed by a process in which a nucleator is used, and the nucleator comprises 80% or more of unagglomerated fluororesin particles and/or agglomerates of fluororesin particles in which both the unagglomerated particles and the agglomerates are less than 1 ?m in size.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: March 1, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Gangwei Sun, Mohamed Esseghir, Chester J. Kmiec, Lei Ying, Yabin Sun, Xianmin Xu
  • Patent number: 11248081
    Abstract: Polyurethane/polyisocyanurate foam insulation described herein is derived from a composition that contains an organic polyisocyanate, an isocyanate reactive material containing at least about 20% by weight, based on the total weight of the composition, of an aromatic polyester polyol, a hydrocarbon blowing agent, a first catalyst selected from the group consisting of a carboxylate salt of an alkali metal, a carboxylate salt of an alkaline earth metal, a carboxylate salt of a quaternary ammonium, and combinations thereof, and a second catalyst comprising a non-reactive tertiary amine, wherein a molar ratio of the first catalyst to the second catalyst is less than about 1.25, the composition gels quickly, and the composition has an isocyanate index greater than about 175. Such an insulating foam has a ratio of thermal conductivity at 75° F. to thermal conductivity at 25° F. between about 0.98 and about 1.10.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: February 15, 2022
    Assignee: HUNTSMAN Petrochemical LLC
    Inventors: Sachchida N. Singh, Kristof Dedecker, Sheila Dubs, Paul Coleman
  • Patent number: 11236192
    Abstract: A flame-retardant rigid polyurethane foam contains a flame retardant, the foam having a ratio of the maximum peak intensity ratio (P1) of the foam after moist heat treatment of the foam for one week at a temperature of 80° C. and a humidity of 85% to the maximum peak intensity ratio (P2) of the foam before this moist heat treatment of 85% or more (P1/P2x100). The P1 and P2 each refer to the ratio of the maximum peak intensity of 1390 to 1430 cm?1 to the maximum peak intensity of 1500 to 1520 cm?1 when the infrared absorption spectrum is measured at a position 5 to 10 mm from the surface of the foam, and the average intensity of 1900 to 2000 cm?1 is adjusted to zero.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: February 1, 2022
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Kazuhiro Okada, Tomonori Kajita, Yozo Toei
  • Patent number: 11230626
    Abstract: Described herein are crosslinked alkylated poly(benzimidazole) and poly(imidazole) polymer materials and devices (e.g., fuel cells, water electrolyzers) including these polymer materials. The polymer materials can be prepared in a convenient manner, allowing for applications such as anion exchange membranes (AEMs). The membranes provide high anion conductivities over a wider range of operating conditions when compared to the analogous membranes that are not cross-linked. The crosslinked polymer materials have improved alkaline stability, when compared to the analogous non-crosslinked polymer materials.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: January 25, 2022
    Assignee: Simon Fraser University
    Inventors: Steven Holdcroft, Thomas Weissbach, Timothy James Peckham, Andrew Wright, Benjamin Britton
  • Patent number: 11208539
    Abstract: The present disclosure provides an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which also has favorable combustion and self-heating properties. Also provided is a method of preparing an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which has favorable combustion and self-heating properties. Further provided is a method of improving the hydrophobicity, the liquid water uptake, the heat of combustion, or the onset of thermal decomposition temperature of an aerogel composition.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: December 28, 2021
    Assignee: Aspen Aerogels, Inc.
    Inventors: Owen R Evans, Kathryn E deKrafft, Nicholas A Zafiropoulos, Wenting Dong, David J Mihalcik, George L Gould, Irene Melnikova
  • Patent number: 11207757
    Abstract: In the composition according to an embodiment, the weight ratio of toluene 2,4-diisocyanate in which one NCO group is reacted and unreacted toluene 2,6-diisocyanate in the urethane-based prepolymer is adjusted, whereby such physical properties as gelation time can be controlled. Thus, the polishing rate and pad cut rate of a polishing pad obtained by curing the composition according to the embodiment may be controlled while it has a hardness suitable for a soft pad, whereby it is possible to efficiently manufacture high-quality semiconductor devices using the polishing pad.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: December 28, 2021
    Assignee: SKC solmics Co., Ltd.
    Inventors: Eun Sun Joeng, Jong Wook Yun, Hye Young Heo, Jang Won Seo
  • Patent number: 11208519
    Abstract: Tertiary amine catalysts having isocyanate reactive groups that are capable of forming thermally stable covalent bonds able to withstand temperatures up to 120° C. are disclosed. These catalyst can be used to produce polyurethane foam having the following desirable characteristics: a) very low chemical emissions over a wide range of environmental conditions and isocyanate indexes (e.g., indexes as low as 65 but higher than 60) while meeting all physical property requirements; b) sufficient hydrolytic stability to maintain the catalyst covalently bound to foam without leaching of tertiary amine catalyst when foam is exposed to water or aqueous solutions even at temperatures higher than ambient (temperature range 25° C. to 90° C.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: December 28, 2021
    Assignee: Evonik Operations GmbH
    Inventors: Juan Jesus Burdeniuc, Torsten Panitzsch, Kai Xi, Renee Jo Keller
  • Patent number: 11203660
    Abstract: Embodiments of the present disclosure are directed towards foam formulations that include a high functionality polyether polyol, an aromatic polyether polyol, an amine initiated aliphatic polyether polyol, and a diol.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: December 21, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Cecilia Girotti, Andrea Brandoli
  • Patent number: 11130842
    Abstract: The invention relates to a method for producing polyether carbonate polyols, wherein (i) in a first step a polyether carbonate polyol is produced from one or more H-functional starter substances, one or more alkylene oxides, and carbon dioxide in the presence of at least one DMC catalyst, and (ii) in a second step the polyether carbonate polyol is chain-extended with a mixture of at least two different alkylene oxides in the presence of at least one DMC catalyst. The invention further relates to polyether carbonate polyols that contain a terminal mixed block of at least two alkylene oxides and to a method for producing soft polyurethane foams, wherein a polyol component containing a polyether carbonate polyol according to the invention is used.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: September 28, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Jörg Hofmann, Bert Klesczewski, Michael Schneider
  • Patent number: 11124595
    Abstract: A polyol composition is made by polymerizing a mixture of ethylene oxide and propylene oxide onto a mixture of at least one diol initiator and at least one triol initiator, followed by polymerizing 100% propylene oxide or a mixture of at least 90 weight percent propylene oxide and at most 10 weight percent ethylene oxide. The resulting polyol composition has a hydroxyl equivalent weight of 200 to 400 and an average nominal functionality of 2.05 to 2.95 hydroxyl groups/molecule. 5 to 30 percent of the hydroxyl groups of the coinitiated polyether polyol are primary hydroxyl groups and polymerized ethylene oxide constitutes 40 to 63 percent of the total weight of the coinitiated polyether polyol.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: September 21, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Hamideh Ahmadloo, Paul Cookson, Ricco B. Borella, Jean-Paul Masy, Lucie Porcelli, Francois Casati