Patents Examined by Morton Foelak
  • Patent number: 6890437
    Abstract: A waste disposal and recovery system for disposal of expanded polystyrene foam and recovery of a usable resin. The system includes a first tank and a second tank in flow communication. Within the second tank may be a plurality of settlement compartments with a filtration system. An organic solvent is used to dissolve the expanded polystyrene foam which forms a waste solution. The waste solution is directed to the second tank where it is separated into resin and the organic solvent. The solvent may be recycled for use in dissolving more expanded polystyrene foam while the resin may be removed for storage, shipment or sale.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: May 10, 2005
    Assignee: Densified Solutions, L.L.C.
    Inventors: John W. Rickett, Kevin L. Lyons
  • Patent number: 6890964
    Abstract: A two-component foam-in-place structural material for producing a foamed product. The first component of the system includes an epoxy-based resin preferably formulated with a physical blowing agent particulate material. The physical blowing agent core is encapsulated within a shell or skin that will change state. The second component is an acid that is capable of initiating polymerization of the resin. A reactive mixture is achieved through the combination of the first and second components wherein heat from the exothermic reaction of the epoxy component caused by the acid in turn causes the thermoplastic shell having a solvent core to soften and increase in size due to gas pressure and change in state of the shell thereby foaming the reactive mixture.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: May 10, 2005
    Assignee: L&L Products, Inc.
    Inventors: Michael J. Czaplicki, David J. Kosal, Keith Madaus
  • Patent number: 6890965
    Abstract: Foamable compositions are provided including a polymeric component, an encapsulated foaming component in an amount effective in foaming the foamable composition and a wood component in an amount effective as a filler in a foamed composition obtained from the foamable composition. Foamed compositions and methods of producing foamed positions are also provided.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: May 10, 2005
    Assignees: Hughes Processing, INC, Jet Plastics, Inc.
    Inventors: Lowell Frank Johnson, Roderick E. Hughes
  • Patent number: 6887910
    Abstract: A suitable cross-linkable matrix precursor and a poragen can be treated to form a porous cross-linked matrix having a Tg of greater than 300° C. The porous matrix material has a lower dielectric constant than the corresponding non-porous matrix material, making the porous matrix material particularly attractive for a variety of electronic applications including integrated circuits, multichip modules, and flat panel display devices.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: May 3, 2005
    Assignee: Dow Global Technologies Inc.
    Inventors: Kenneth J. Bruza, James P. Godschalx, Edward O. Shaffer, II, Dennis W. Smith, Jr., Paul H. Townsend, III, Kevin J. Bouck, Qing Shan J. Niu
  • Patent number: 6887914
    Abstract: The present invention relates to a material, method, and application for reinforcement of structural members, especially joints such as a hem flange joint of an automobile. The method and material of the present invention comprises of combining, in parts by weight: less than about twenty percent (<20%) ethylene copolymer, less than about forty percent (<40%) epoxy, less than about thirty percent (<45%) epoxy-based resin, less than about two percent (<2%) blowing agent and from about one percent (1%) to about five percent (5%) curing agent (and optionally add any of the following components: less than about two percent (<2%) curing agent accelerator, from about twenty-five percent (25%) to fifty-five percent (55%) filler, and less than about one percent (<1%) of coloring agent).
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: May 3, 2005
    Assignee: L&L Products, Inc.
    Inventors: Michael J. Czaplicki, David J. Kosal, Jeanne Antrim
  • Patent number: 6884507
    Abstract: The present invention provides tough, high modulus, low density thermoset polyurethane compositions which are useful in general as, for example, cast structural materials and in a preferred embodiment can be cured directly onto an aircraft engine fan blade, thereby providing a lighter blade, without concomitant loss in structural integrity or blade performance due to, for example, resistance to foreign object impacts and fuel efficiency. In a preferred embodiment, the composition is comprised of bis-amine compounds reacted with isocyanate-functional polyether polymers in the presence of hollow polymeric microspheres. The thermoset polymer compositions are formed by casting into a mold which is formed by a cavity within the metallic or composite fan blade or guide vane in the form of a pocket and a removable caul sheet. After the elastomeric polyurethane foam is injected through at least one injector port into the mold, the foam is cured.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: April 26, 2005
    Assignee: General Electric Company
    Inventors: Wendy Wen-Ling Lin, Scott Roger Finn, Kevin Warner Flanagan, Joseph Timothy Stevenson, James Claude Carnahan
  • Patent number: 6884823
    Abstract: Injection molding systems and methods useful for making microcellular foamed materials are provided as well as microcellular articles. Pressure drop rate and shear rate are important features in some embodiments, and the invention provides systems for controlling these parameters in an injection molding system. Another aspect involves an injection molding system including a nucleator that is upstream of a pressurized mold. Another aspect involves an extrusion system with the reciprocating screw for forming a single phase solution of non-nucleated blowing agent and polymeric material. Another aspect involves very thin walled microcellular material and very thin walled polymeric material. Another aspect provides a method for producing high weight reductions in very thin-walled parts with surfaces that have no noticeable differences from non-foamed parts.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: April 26, 2005
    Assignee: Trexel, Inc.
    Inventors: David E. Pierick, Jere R. Anderson, Sung W. Cha, Liqin Chen, James F. Stevenson, Dana E. Laing
  • Patent number: 6878752
    Abstract: A method of making a one-container foam by dissolving a polymer in liquified gas at a pressure greater than the vapor pressure of the liquified gas and than rapidly decreasing the pressure within approximately 60 seconds to foam a foam. The foam can be rigid and also have adhesive properties. The liquified gas used is CF3l or mixtures thereof.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: April 12, 2005
    Assignee: Sandia Corporation
    Inventor: James H. Aubert
  • Patent number: 6878754
    Abstract: Heat-induced gelling foaming composition comprising an aqueous phase, said aqueous phase comprising a polymer comprising water-soluble units and units having in water a lower critical solution temperature LCST, the heat-induced demixing temperature by heating in aqueous solution of said units with an LCST being from 5 to 40° C. for a concentration by mass in water of 1% of said units, and the concentration of said polymer in said composition being such that the gel point is in the range from 5 to 40° C. Foam obtained from the said foaming composition. The compositions according to the invention are essentially compositions for topical application and especially cosmetic or dermatological compositions, for example make-up-removing compositions.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: April 12, 2005
    Assignee: L'Oreal
    Inventor: Florence L'Alloret
  • Patent number: 6872756
    Abstract: A foam formed from ethylene/vinyl acetate copolymer having a melt index of greater than 1 gram/10 minutes and a vinyl acetate content ranging from about 5 to about 25 weight percent.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: March 29, 2005
    Assignee: Sealed Air Corporation (US)
    Inventors: Maurizio Bandolini, Shau T. Lee, Natarajan S. Ramesh, James J. Baker
  • Patent number: 6872757
    Abstract: An extruded thin sheet foam is disclosed prepared from a polyolefin resin in which the blowing agent comprises a blend of from about 1 to 25% by weight of carbon dioxide and the balance of C3 to C4 VOCs. Thin foam sheets produced with the blowing agent age about twice as fast as foams prepared with VOCs, are remarkably stable, and can be produced at high throughputs.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: March 29, 2005
    Assignee: Sealed Air Corporation
    Inventors: Shau-Tarng Lee, Natarajan S. Ramesh, James Baker
  • Patent number: 6872755
    Abstract: A method for making a resilient material includes providing a particulate polymer, discrete pieces of foam, a foaming agent and a plasticizer. The polymer, foam pieces and plasticizer are mixed and disposed in a mold. The mold is heated to cause melting of the polymer without melting of the foam. After coating of the melted polymer, a heterogeneous resilient cushion is formed with gelated polymer surrounding the discrete foam pieces.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: March 29, 2005
    Inventor: Paul M. Yates
  • Patent number: 6869980
    Abstract: The present invention relates to novel polymer blend membranes comprising a functional polymer based on sulfonated aryl polymers, a reinforcing polymer based on aminated or nitrated polyether sulfones and/or polyether ether sulfone and a plasticizer, and also their use as polymer electrolyte membrane in fuel cells, in particular in low-temperature fuel cells.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: March 22, 2005
    Assignee: Celanese Ventures GmbH
    Inventor: Wei Cui
  • Patent number: 6867240
    Abstract: Methods and compositions are described that provide three dimensional porous matrices as structural templates for cells. The porous matrices of the present invention have desirable mechanical properties suitable to a variety of applications, including platforms for in vitro cell cultivation, implants for tissue and organ engineering, and materials suitable for chromatography and filtration.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: March 15, 2005
    Assignee: The Regents of the University of Michigan
    Inventors: Peter X. Ma, Ruiyun Zhang
  • Patent number: 6864298
    Abstract: The invention relates to expandable polyolefin beads which comprise blowing agent and have been coated with from 0.01 to 3% by weight of a salt and/or ester of a long-chain fatty acid, preferably with calcium stearate, to prevent caking during foaming.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: March 8, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Maletzko, Uwe Keppeler, Klaus Hahn, Isidor de Grave
  • Patent number: 6864297
    Abstract: Composite foam based on expandable microspheres reinforced with fibers is described. Also disclosed are methods of making microsphere foam reinforced with fibers and methods of use thereof. The disclosure provides foam that performs equally and better than the performance of most thermoplastic foams commercially available.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: March 8, 2005
    Assignee: University of Southern California
    Inventors: Steven R. Nutt, Lev Vaikhanski
  • Patent number: 6855740
    Abstract: Molded foam bodies made of silicone can be produced in large series by means of known injection molding machines for liquid silicone by virtue of the fact that mixtures of ammonium carbonate, and/or ammonium carbaminate, and/or ammonium hydrogen carbonate, in powdered form, and at least one of the two liquid-paste-like components of liquid silicone are produced and the two liquid silicone components are then processed in the known manner, with the proviso that the mold is not completely filled with the dispersion.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: February 15, 2005
    Assignee: Stuemed GmbH
    Inventor: Rolf Siegel
  • Patent number: 6852764
    Abstract: Provided is a blend comprising: a) from 20 to 60 wt % of a thermoplastic elastomer; b) from 8 to 30 wt % of a vinylaromatic polymer; c) from 10 to 30 wt % of one or more processing aid; d) from 0 to 20 wt % of one or more additives.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: February 8, 2005
    Assignee: Atofina Research S.A.
    Inventor: Jean-Marie Mlinaric
  • Patent number: 6849665
    Abstract: Described is a water-absorbent composition containing from 30 to 100% by weight, based on the water-absorbent composition, of water-insoluble water-swellable hydrogels characterized by the following features: Centrifuge Retention Capacity (CRC) of at least 24 g/g, Saline Flow Conductivity (SFC) of at least 80×10?7 cm3 s/g and Free Swell Rate (FSR) of at least 0.15 g/g s and/or Vortex Time of not more than 160 s.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: February 1, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Volker Frenz, Norbert Herfert, Ulrich Riegel, William E. Volz, Thomas H. Majette, James Hill
  • Patent number: 6841581
    Abstract: An extruded styrene resin foam which is produced by using a blowing agent imposing a reduced load on the environment and has outstandingly excellent thermal insulating property and flame retardant property adapted for construction use.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: January 11, 2005
    Assignee: Kaneka Corporation
    Inventors: Takahiro Hayashi, Kenkichi Tanaka, Hiroshi Kobayashi, Jun Fukuzawa, Syunji Kurihara