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| Number | Title | Issue Date |
| 7389802 | Tire with double layer innerliner A pneumatic tire with a double layer innerliner structure bonded to an inner face of the tire carcass for reducing noise generated by air vibrations inside of the tire's air chamber, and a method of making the tire. The double layer structure includes a first innerl... | 06/24/2008 |
| 7214724 | Method for cross-linking a foamable plastic A plastic is converted from an initial condition with a higher density into a foamed condition with a lower density using a blowing agent, wherein the plastic is cross-linked prior to foaming by means of a first cross-linking agent and during the foaming by means of... | 05/08/2007 |
| 7056455 | Process for the preparation of nanostructured materials The present invention comprises a novel process for the preparation of carbon based structured materials with controlled topology, morphology and functionality. The nanostructured materials are prepared by controlled carbonization, or pyrolysis, of precursors compri... | 06/06/2006 |
| 6949588 | Perforated foams Thermoplastic polymer foams having sound deadening properties satisfactory for demanding applications are provided which have mechanical strength, which are economical to manufacture, and which are hydrolytically stable. Methods of preparing these foams are also pro... | 09/27/2005 |
| 6720362 | Perforated foams Thermoplastic polymer foams having sound deadening properties satisfactory for demanding applications are provided which have mechanical strength, which are economical to manufacture, and which are hydrolytically stable. Methods of preparing these foams are also pro... | 04/13/2004 |
| 6582811 | Method of and material for purification of physical liquids of organism, and method of producing the material A method of purification of physiological liquids of organism has the step of passing a physiological liquid through a material which has a size, a shape, and a structure selected so as to remove toxic compounds from the physiological liquid and is compos... | 06/24/2003 |
| 6583193 | Polyolefin foam useful for sound and thermal insulation An extruded, coalesced foam strand propylene polymer material that is either open-celled and useful for sound insulation applications or close celled and useful for thermal insulation applications. An apparatus suitable for preparing such foams with an expande... | 06/24/2003 |
| 6368742 | Polypropylene microporous membrane for battery separator A battery separator is a polypropylene microporous membrane, made from a beta-nucleated precursor, and having an electrical resistance of less than 30 ohms-inches per mil, and a puncture strength of greater than 400 grams-force per mil. mil.... | 04/09/2002 |
| 6337354 | Ink wastage absorber and ink supporter An ink wastage absorber is made from a flexible polyurethane foam having an air-permeability of 1.0 cc/cm2 /sec or more, or is made from a flexible polyurethane foam produced by using a foamable raw material containing a polyol, an isocyanate, ... | 01/08/2002 |
| 6296842 | Process for the preparation of polymer-based sustained release compositions The invention relates to a sustained release composition and methods of forming and using said composition for the sustained release of biologically active agent. The sustained release compositions of the invention comprise a biocompatible polymer and a b... | 10/02/2001 |
| 6048607 | Porous film of high molecular weight polyolefin and process for producing same The present invention relates to a porous or microporous film of a high molecular weight polyolefin excellent in strength and air-permeability and suitable for use in filtering materials, separators for aqueous electrolyte batteries, separator films for b... | 04/11/2000 |
| 5976616 | Polyurethane foam materials with skin conditioning additives Polyurethane foam pads for use in the topical care and treatment of the skin are disclosed. The polyurethane pads are formed from a polymerized combination of an aqueous mixture having at least one skin conditioning agent (such as Vitamin E or aloe) and a... | 11/02/1999 |
| 5973018 | Process for producing shaped phenolic foams This invention is a partially or semi-cured foam used to form the pipe insulation. The semi-cured foam is very flexible and can be formed around a pipe for a long period of time after production. The semi-cured phenolic foam board of this invention is a c... | 10/26/1999 |
| 5961814 | Pitch foam products An improved process for the preparation of a pitch foam with a microcellular structure and a uniform pore size comprises the steps of (a) pressing a quantity of a pitch to provide a pressed article, (b) placing the pressed article in a pressure vessel, (c... | 10/05/1999 |
| 5958571 | Material for a gasket coated with foam rubber In order to improve the sealing property and the resistance to pressure of a gasket coated with foam rubber layers, the foam rubber layers are formed on both surfaces of a metal plate from a rubber which is swollen by the medium to be sealed by the gasket... | 09/28/1999 |
| 5945084 | Low density open cell organic foams, low density open cell carbon foams, and methods for preparing same This pertains to the general field of gels, foams, and aerogels, particularly, to low density open cell organic foams and low density open cell carbon foams, and methods for preparing them. These low density open cell organic foams are derived from organi... | 08/31/1999 |
| 5900087 | Preparation of flexible, flame-bondable polyurethane-polyether foams having improved adhesion A flexible, flame-bondable polyurethane-polyether block foam is prepared by a process in which at least one diol is added to the block foam.... | 05/04/1999 |
| 5900442 | Flexible polyurethane foams Process for preparing a flexible polyurethane foam by reacting a polyisocyanate and two different polyols under foam forming conditions so as to prepare a rigid foam and by crushing the rigid foam so obtained. Flexible foams are obtained which do not show... | 05/04/1999 |
| 5858501 | Evacuated insulation panel having non-wrinkled surfaces There is an evacuated insulation panel comprising a corestock of an open-cell alkenyl aromatic polymer foam and a deformable receptacle. The foam has an open cell content of about 70 percent or more. The foam is situated within the receptacle. The recepta... | 01/12/1999 |
| 5854295 | Microcellular foams containing an infrared attenuating agent and a method of using Disclosed is an evacuated and unevacuated microcellular foam containing an infrared attenuating agent (IAA). The evacuated foam has an average cell size of about 70 micrometers or less. The unevacuated foam has an average cell size of 1.0 micrometers or l... | 12/29/1998 |
| 5844011 | Composition and method for selectively absorbing liquid hydrocarbon from a floor or other hard surface Method and composition for selectively removing liquid hydrocarbon from floors and other hard surfaces comprising granular polyisocyanurate foam. The composition desirably includes a particulate material having a bulk density greater than the polyisocyanu... | 12/01/1998 |
| 5844014 | Compressed, extruded, evacuated open-cell polymer foams and evacuated insulation panels containing them Disclosed is a compressed, evacuated, open-cell polymer foam, the foam having an open cell content of about 70 percent or more prior to compression, the foam having a thickness of about 40 to about 90 percent of the initial thickness of the foam prior to ... | 12/01/1998 |
| 5843241 | Composition and method for selectively absorbing liquid hydrocarbon from a floor or other hard surface Method and composition for selectively removing liquid hydrocarbon from floors and other hard surfaces comprising granular polyisocyanurate foam. The composition desirably includes a particulate material having a bulk density greater than the polyisocyanu... | 12/01/1998 |
| 5821272 | Method for post-treatment of polyolefin resin pre-expanded particles Post-treatment method of polyolefin resin pre-expanded particles comprising: introducing the polyolefin resin pre-expanded particles foamed by using an inflammable blowing agent into an extraction vessel filled with steam previously; feeding an additional... | 10/13/1998 |
| 5668188 | Process for preparing silicon carbide foam A method of preparing near net shape, monolithic, porous SiC foams is disclosed. Organosilicon precursors are used to produce polymeric gels by thermally induced phase separation, wherein, a sufficiently concentrated solution of an organosilicon polymer i... | 09/16/1997 |
| 5504124 | Process for removing unwanted material from wanted material Process for removing unwanted material from wanted material containing water by bringing an isocyanate-containing prepolymer into contact with the materials, allowing the prepolymer to react with the water to form a flexible foam and removing the foam obt... | 04/02/1996 |
| 5482980 | Methods for preparing flexible, open-celled, polyester and polyether urethane foams and foams prepared thereby A method for the preparation of a flexible, open-celled, urethane foam which comprises reacting at least one isocyanate and at least one polyol in the presence of at least one catalyst and an epoxidized soybean oil, wherein each polyol is a saturated poly... | 01/09/1996 |
| 5449427 | Processing low dielectric constant materials for high speed electronics A method for processing a low dielectric constant material includes dispersing an additive material in a porous low dielectric constant layer, fabricating a desired electronic structure, and then removing the additive material from the pores of the low di... | 09/12/1995 |
| 5447963 | Method for reducing volatile emissions generated during the preparation of foams and fabrication of foam products Methods for reducing the quantity of emissions emanating from a foam-forming composition during the preparation of a fully-cured foam comprising contacting emissions emanating from the foam-forming composition during preparation of the fully-cured foam wi... | 09/05/1995 |
| 5413848 | Insulating foam of low thermal conductivity and method of preparation Low thermal conductivity insulation for refrigerators and the like is produced by blowing a resinous foam in an inert (e.g., nitrogen) atmosphere with a mixture of carbon dioxide and a low thermal conductivity inert gas such as krypton or xenon. The foam ... | 05/09/1995 |
| 5362760 | Temperature resistant microporous film A microporous film with improved resistance to elevated temperatures from a first, thermoplastic polymer, the internal and external surfaces of the film being provided with a continuous coating layer of a second polymer having a higher softening temperatu... | 11/08/1994 |
| 5300272 | Microcellular carbon foam and method A microcellular carbon foam characterized by a density in the range of about 30 to 1000 mg/cm3, substantially uniform distribution of cell sizes of diameters less than 100 μm with a majority of the cells being of a diameter of less than about ... | 04/05/1994 |
| 5296510 | Method for treating the surface of a thin porous film material of tetrafluoroethylene resin A method for treating the surface of a thin porous film material of tetrafluoroethylene resin is disclosed, which comprises heating said surface to a temperature higher than the thermal decomposition point of said resin so as to decompose and remove part ... | 03/22/1994 |
| 5268395 | Microcellular carbon foam and method A microcellular carbon foam characterized by a density in the range of about 30 to 1000 mg/cm3, substantially uniform distribution of cell sizes of diameters less than 100 μm with a majority of the cells being of a diameter of less than about ... | 12/07/1993 |
| 5260345 | Absorbent foam materials for aqueous body fluids and absorbent articles containing such materials Disclosed are absorbent foam materials suitable for use as or in the absorbent cores of absorbent articles, such as diapers which absorb and retain aqueous body fluids. Such foam materials comprise hydrophilic, flexible open-celled structures which are pr... | 11/09/1993 |
| 5252626 | Method for treating the surface of a thin porous film material A method for treating the surface of a thin porous film material of tetrafluoroethylene resin is disclosed, which comprises heating said surface to a temperature higher than the thermal decomposition point of said resin so as to decompose and remove part ... | 10/12/1993 |
| 5234969 | Cured phenolic foams Dimensionally stable, cured phenolic foams are described that have a thermal conductivity after 10-days below 0.0185 watts/m °C., a density of 30 to 70 kg/cubic meter and a closed-cell content of at least 85%.... | 08/10/1993 |
| 5223543 | Reduction in polystyrene with activated agent This invention is a method to speed up and prevent inconsistent rates of reaction in the reduction of volume of polystyrene foam products by the application of a liquid and vapors of a terpine or isoprenoid compound where a heat activation within 90 days ... | 06/29/1993 |
| 5219894 | Method for treating the surface of a thin porous film material A method for treating the surface of a thin porous film material of tetrafluoroethylene resin is disclosed, which comprises heating said surface to a temperature higher than the thermal decomposition point of said resin so as to decompose and remove part ... | 06/15/1993 |
| 5217505 | Carbonaceous adsorbents for prevention of carbon bed fires A process for removing an oxidizable organic compound from an oxidizing gas stream which includes contacting the gas stream with a bed of carbonaceous adsorbent particles, wherein the adsorbent particles comprise porous pyrolyzed particles of a polysulfon... | 06/08/1993 |
