Patents Examined by John M. Cooney, Jr.
  • Patent number: 7388037
    Abstract: A flexible polyurethane foam whereby exceedingly low resilience can be obtained without using a plasticizer and the hardness change due to a temperature change is little; and a process for its production, are provided. The flexible polyurethane foam is characterized by having a core resilience of 30% or lower and a glass transition point within a range of from ?80° C. to ?60° C. The process for producing a flexible polyurethane foam comprises reacting a polyol with a polyisocyanate compound in the presence of a catalyst, a foam stabilizer, and a blowing agent, and is characterized by using as the polyol a polyol(l) having a hydroxyl value of from 5 to 15 mgKOH/g.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: June 17, 2008
    Assignee: Asahi Glass Company, Limited
    Inventors: Takayuki Sasaki, Yuuji Kimura, Katsuji Kuribayashi
  • Patent number: 7378454
    Abstract: A polyurethane composition containing solid beads dispersed therein, is formed of a microcellular polyurethane foam, and the composition has a storage modulus of elasticity at 40° C. of 270 MPa or more as measured by means of a dynamic elasticity measuring device. Another polyurethane composition of this invention contains solid beads dispersed therein, that are capable of swelling with or are soluble in an aqueous medium. The former composition has excellent flattening capability, and the latter composition can provide a polished surface which combines good flatness and good uniformity and can also reduce scratches on the surface.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: May 27, 2008
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventors: Takashi Masui, Masahiko Nakamori, Takatoshi Yamada, Koichi Ono, Kazuyuki Ogawa, Atsushi Kazuno, Hiroshi Seyanagi
  • Patent number: 7361695
    Abstract: The present invention is to the production of flexible polyurethane foam in the absence of an amine catalyst. The reactivity of the foam forming system can be controlled by the addition of an autocatalytic polyol containing a tertiary amine where the amount of autocatalytic polyol comprises less than 5 percent by weight of the total polyol.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: April 22, 2008
    Assignee: Dow Global Technologies Inc.
    Inventors: Johnson Tu, Lance A. Cooper, Francois M. Casati, Jean-Marie L. Sooney
  • Patent number: 7338983
    Abstract: A method for producing a cured, low-density polyurethane foam, the method comprises frothing a reactive polyurethane-forming composition comprising an isocyanate-containing component, an active hydrogen-containing component reactive with the isocyanate-containing component, a blowing agent, a surfactant, and catalyst system, wherein the catalyst system provides for a delayed curing of the foam; casting the frothed reactive polyurethane-forming composition onto a first carrier; placing a second carrier on a side of the cast foam opposite the first carrier; blowing the froth with the second carrier in place; and curing the blown froth so as to provide a polyurethane foam layer having a density of about 50 to about 400 kg/m3 and a thickness of about 0.3 to about 13 mm. The foams are useful as sealing members.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: March 4, 2008
    Assignee: World Properties, Inc.
    Inventors: Scott S. Simpson, Tadashi Sato
  • Patent number: 7326362
    Abstract: In the present invention, a rigid polyurethane foam or polyisocyanurate foam is prepared by mixing an isocyanate with a premix of a polyol, a blowing agent, a reaction catalyst, a foam stabilizer and other additives, in which 1,1,1,3,3-pentafluoropropane is used as the blowing agent in combination with a vapor pressure depressant therefor that includes at least one compound compatible with 1,1,1,3,3-pentafluoropropane.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: February 5, 2008
    Assignee: Central Glass Company, Limited
    Inventors: Yasuo Hibino, Toshio Hesaka, Naoto Takada
  • Patent number: 7326738
    Abstract: The subject invention provides a composition and a process for forming a flexible polyurethane foam sealing device having improved compression set properties at increased temperatures. The sealing device is formed without the use of chemical blowing agents. The composition includes an isocyanate component for reaction with a resin component comprising an isocyanate-reactive component having a functionality of least four and a hydroxyl number of less than 40, a graft dispersion, and a physical blowing agent. The most preferred physical blowing agent is HFC-245 fa or 1,1,1,3,3-pentafluoropropane.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: February 5, 2008
    Assignee: BASF Corporation
    Inventors: Robert B. Stearns, John P. Erickson, Steven Hicks, John Cook, Raghuram Gummaraju
  • Patent number: 7317112
    Abstract: A method of dimerizing isocyanates using sulphonamide anions as a dimerization catalyst for the isocyanates and also to a process for preparing oligomeric isocyanates using such catalysts.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: January 8, 2008
    Assignee: Bayer MaterialScience AG
    Inventors: Jürgen Köcher, Hans-Josef Laas
  • Patent number: 7300961
    Abstract: The present invention relates to polyol compositions which can be used to produce dimensionally stable, low density water-blown rigid foams which have acceptable compressive strengths and acceptable k-factors. In one embodiment of the present invention, the polyol compositions are composed of at least one aromatic amine-initiated polyether polyol and at least one polyether polyol having a functionality greater than or equal to 2.5 in which at least 50% by weight of the polyol composition is aromatic amine-initiated polyether polyol and in which no more than 50% by weight of the polyol composition is polyether polyol having a functionality greater than or equal to 2.5.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: November 27, 2007
    Assignee: Bayer MaterialScience LLC
    Inventors: Karl W. Haider, David D. Steppan, Michael E. McGregor, Kerry A. Ingold, Vincent M. Mautino, Michael A. Dobransky
  • Patent number: 7285577
    Abstract: A method to produce a rigid polyurethane foam includes emulsifying a nucleating agent by mixing the nucleating agent with a polyol and a foam stabilizer, preparing a polyol mixture by mixing water, a catalyst, and a blowing agent at one of: before the emulsifying, during the emulsifying and after the emulsifying, and reacting the polyol mixture with a polyisocyanate.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: October 23, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-jo Suck, Bong-ku Kim, Jang-su An, Hyo-seob Kim, Dae-sung Yang, Seong-ho Ahn, Hong-gi Kim, Suk-jo Lee, Jeong-hon Kim
  • Patent number: 7268170
    Abstract: This invention relates to novel foam modifiers which can be used to prepare flexible foams. These novel foam modifiers provide improved processability and improved properties of the resultant flexible foams. The present invention also relates to the process of preparing these flexible foams and to the resultant foams.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: September 11, 2007
    Assignee: Bayer MaterialScience LLC
    Inventors: Nathan L. Anderson, Veril C. Jividen, Stanley L. Hager
  • Patent number: 7262227
    Abstract: The present invention relates to a process for producing a synthetic resin foam which comprises reacting at least one polyol with at least one polyisocyanate compound in the presence of an organic blowing agent, wherein the organic blowing agent is a blowing agent for synthetic resin foams which is characterized by being a mixture comprising 1,1,1,3,3-pentafluorobutane (HFC-365mfc) and at least one halogen-containing compound and optionally containing at least one member selected from the group consisting of glycol compounds and amide compounds. Also provided are: a premix comprising the blowing agent and a polyol mixture; and a process for producing a synthetic resin foam from these.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: August 28, 2007
    Assignee: Daikin Industries, Ltd.
    Inventors: Takashi Shibanuma, Noriaki Shibata
  • Patent number: 7247658
    Abstract: Surprisingly effective additive formulations for the reduction of highly undesirable yellowing or other discoloration of white, uncolored, polyurethane foam articles are provided. White polyurethane foam exhibits a susceptibility to yellowing and discoloration to a great extent, particularly in relatively short periods of time, than other types of polymeric articles. The inventive additives impart excellent low-discoloration properties over appreciable amounts of time of regular exposure to harmful elements, thereby according the pertinent industry a manner of providing white polyurethane foams for longer periods of time. Methods of producing such reliably white-colored polyurethane foams are also provided.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: July 24, 2007
    Assignee: Milliken & Company
    Inventors: Mark E. Ragsdale, Philip T. Radford
  • Patent number: 7244772
    Abstract: We describe a process for the preparation of polyurethane polyol from CARDANOL 3-(8pentadecenyl)phenol, derived from cashew nut shell liquid (CNSL), a renewable resource material. The polyol is made by oxidation with peroxy acid generated in situ to give epoxidised CARDANOL 3-(8-pentadecenyl)phenol and the epoxy derivative is converted to the polyol in the presence of the organic acid. The cardanol-based polyol may be reacted with isocyanate to form polyurethane. Alternatively blowing agents are included with the cardanol-based polyol before it is reacted with the isocyanate. These polyols are especially suitable for making rigid foams of very low density and high compressive strength.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: July 17, 2007
    Assignee: Council of Scientific and Industrial Research
    Inventors: Suresh Kattimuttathu Ittara, Kishanprasad Vadi Sarangapani
  • Patent number: 7238730
    Abstract: The subject invention provides a viscoelastic polyurethane foam being flame retardant and having a density of greater than two and a half pounds per cubic foot that comprises a reaction product of an isocyanate component, an isocyanate-reactive blend, and a chain extender. The isocyanate-reactive blend includes a first isocyanate-reactive component and a second isocyanate-reactive component. The first isocyanate-reactive component includes at least 60 parts by weight of ethylene oxide (EO) based on 100 parts by weight of the first isocyanate-reactive component and the second isocyanate-reactive component includes at most 30 parts by weight of EO based on 100 parts by weight of the second isocyanate-reactive component. The chain extender is reactive with the isocyanate component and has a backbone chain with from two to eight carbon atoms and is present in an amount of from 5 to 50 parts by weight based on 100 parts by weight of the foam.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: July 3, 2007
    Assignee: BASF Corporation
    Inventors: Wassana Apichatachutapan, Raymond Neff, James Mullins, Theodore M. Smiecinski, Thomas B. Lee
  • Patent number: 7230036
    Abstract: A polyurethane and/or polyisocyanurate foam is made using expandable microspheres which encapsulate a primary blowing agent. By expanding during the foam making process, the microspheres function as a blowing agent. The foam preferably has at least 10% by weight expandable micro spheres which encapsulate a non-halogenated hydrocarbon chemical or a non-halogenated hydrocarbon chemical blend and less than 2% by weight of any non-encapsulated blowing agents.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: June 12, 2007
    Assignee: IP Rights, LLC
    Inventors: Sammie J. (Joey) Glorioso, Jr., James H. Burgess, Jiansheng Tang
  • Patent number: 7226978
    Abstract: The invention provides an implantable membrane for regulating the transport of analytes therethrough that includes a matrix including a first polymer; and a second polymer dispersed throughout the matrix, wherein the second polymer forms a network of microdomains which when hydrated are not observable using photomicroscopy at 400× magnification or less. In one aspect, the homogeneous membrane of the present invention has hydrophilic domains dispersed substantially throughout a hydrophobic matrix to provide an optimum balance between oxygen and glucose transport to an electrochemical glucose sensor.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: June 5, 2007
    Assignee: DexCom, Inc.
    Inventors: Mark A. Tapsak, Rathbun K. Rhodes, Mark C. Shults, Jason D. McClure
  • Patent number: 7223801
    Abstract: A composition and method for protecting pipeline joints is disclosed. A mold covers the exposed pipeline joint. A reaction composition including a polyol, an isocyanate, and an ester, preferably 2,2,4-trimethyl-1,2-pentanediol diisobutyrate, is added to the mold and allowed to react to form a polymer.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: May 29, 2007
    Assignee: Baysystems North America LLC
    Inventor: Scott A Brown
  • Patent number: 7214294
    Abstract: This invention provides azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: May 8, 2007
    Assignee: Honeywell International Inc.
    Inventors: Leslie Bruce Bement, Mary Charlotte Bogdan, Clayton Herbert Carson, Peter Brian Logsdon, Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Ronald Riegal, David John Williams, Kevin Donald Uhrich
  • Patent number: 7208531
    Abstract: The subject invention provides a viscoelastic polyurethane foam having a density of from one to twenty pounds per cubic foot. The foam is formed from a composition that is a reaction product of an isocyanate component (A), a first polyether polyol (B), a second polyether polyol (C), and a chain extender (D). The chain extender (D) has a backbone chain with from two to eight carbon atoms and has a weight-average molecular weight of less than 1,000 and is present in an amount of from 5 to 50 parts by weight based on 100 parts by weight of the composition. The viscoelastic polyurethane foam a first glass transition temperature greater than zero and a second glass transition temperature less than zero and having a tan delta peak ratio of the first glass transition temperature to the second glass transition temperature less than 2.2.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: April 24, 2007
    Assignee: BASF Corporation
    Inventors: Raymond A. Neff, Suzanne Dakin
  • Patent number: H2233
    Abstract: A composition comprising a polyisocyanate, a polyol, a hydrofluorocarbon blowing agent, optionally water, a surfactant, and at least one catalyst for the reaction of the polyisocyanate with the polyol and/or the reaction of the polyisocyanate with water, the catalyst being selected from the group consisting of triethylenediamine; N-2-hydroxy-propyltriethylenediamine ammonium salt; N-cetyl-N,N-dimethylamine; N,N-diethylethanamine; N,N-dimethylaminoethylmorpholine; bis(3-dimethylaminopropyl)-N,N-dimethylpropanediamine; N-cyclohexyl-N-methylcyclohexylamine; 1,3,5-tris(3-(dimethylamino)propyl)hexahydro-s-triazine; bis(dimethylaminopropyl)methylamine; dibutyltin dilaurylmercaptide; dibutyltin diisooctylmaleate; dibutyltin bis(2-ethylhexylmercaptoacetate); stannous octoate, 1,2-dimethylimidizole, bis-(dimethylaminoethyl)ether; bis(3-dimethylaminopropyl)-N,N-dimethylpropanediamine and bis(N,N-dimethylaminoethyl)-ether and resulting in a decreased amount of decomposition of the hydrofluorocarbon blowing agent to fluo
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: November 3, 2009
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Jeffrey Kramer