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| Number | Title | Issue Date |
| 7439297 | Foamable fluoropolymers compositions without using foaming agents A composition comprising: A) 50-99.9% by weight of at least a copolymer (1) of ethylene (E) with chlorotrifluoroethylene (CTFE) wherein CTFE is comprised between 53 and 70% by moles, having a crystallinity in the range 5-45%; B) 0.1-50% by ... | 10/21/2008 |
| 7351338 | Porous membrane of vinylidene fluoride resin and process for producing the same There is provided a porous membrane of vinylidene fluoride resin which has pores of appropriate size and distribution and also excellent mechanical strength represented by tensile strength and elongation at break and is useful as a microfiltration membrane or a sepa... | 04/01/2008 |
| 7309743 | Fluorine-containing elastomer and composition thereof for crosslinking To provide a novel crosslinking system of fluorine-containing elastomer giving a crosslinked product particularly having improved mechanical strength and compression set at high temperature. A fluorine-containing rubber composition comprising a fluorine-containing e... | 12/18/2007 |
| 7285595 | Synergistic fluorochemical treatment blend Disclosed herein are fluorochemical blends suitable for producing repellency to low surface tension fluids such as, for example, alcohols, aldehydes, ketones and hydrophilic liquids, such as those containing surfactants. The fluorochemical blends may be beneficially... | 10/23/2007 |
| 7285320 | Preparation of images on a substrate surface utilizing an opaque coating composition that becomes transparent upon printing The present invention features processes and compositions for producing a metallic-looking image on a substrate having a reflective or luminescent surface. The process utilizes an opaque coating composition containing an opaque coating agent comprising a mixture of ... | 10/23/2007 |
| 7175734 | Porous medical catheter and methods of manufacture The present invention relates to fabrication methods and apparatus for irrigating medical catheters. Such catheters include at least one section of standard thermoplastic catheter tubing coupled to a section of porous tubing (e.g., ePTFE and the like). A source of f... | 02/13/2007 |
| 7169451 | Gas-permeable membrane Novel gas-permeable membranes which are particularly useful in the packaging of fresh cut fruit and vegetables, and other respiring biological materials. The membranes have an O2 permeability of at least 775,000 ml/m2.atm.24 hrs, a P10 | 01/30/2007 |
| 7166247 | Foamed mechanical planarization pads made with supercritical fluid Foamed thermoplastic polymeric mechanical planarization polishing pads (“MP pads”) made with supercritical fluids are presented. A supercritical fluid foaming agent is dissolved in a thermoplastic polymer. A rapid change in the solubility and volume of the super... | 01/23/2007 |
| 7087710 | Polymeric surfactants derived from cyclic monomers having pendant fluorinated carbon groups A fluorine containing polymer which acts as a wetting, flow or leveling agent, and has at least one polar group. The polymer has at least one pendant or ether side chain containing from about 1 to about 20 carbon atoms with at least 25% of the hydrogen atoms being r... | 08/08/2006 |
| 7060746 | Particulate carbonates and their preparation and use in breathable film The present invention is a method of producing a breathable film including producing an inorganic filler by treating particles of an inorganic particulate material comprising an alkaline earth metal carbonate compound by reaction with a hydrophobizing surface treatm... | 06/13/2006 |
| 7060736 | Blowing agent solubility in polymers The selection of additives to improve the solubility of blowing agents may be facilitated by using a method that involves determining and comparing the activity coefficients of prospective additives to the activity coefficients of candidate blowing agents in a given... | 06/13/2006 |
| 7049380 | Thermoplastic copolymer of tetrafluoroethylene and perfluoromethyl vinyl ether and medical devices employing the copolymer An improved elastomeric material is described comprising an essentially noncross-linkable amorphous copolymer of tetrafluoroethylene (TFE) and perfluoromethyl vinyl ether (PMVE) which is both a thermoplastic and exhibits exceptional mechanical properties. This mater... | 05/23/2006 |
| 7030191 | Melt processible copolymer composition A composition comprising tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer and PTFE micropowder with flex life superior to compositions made exclusively of tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer having equivalent perfluoro(alkyl vinyl et... | 04/18/2006 |
| 7026366 | Thermoplastic elastomers having enhanced foaming an physical properties An olefinic thermoplastic elastomer composition which includes an acrylic-modified polytetrafluoroethylene. When foamed, such compositions produce a very soft foam with improved processing properties and physical characteristics. A process of foaming and foamed arti... | 04/11/2006 |
| 6971211 | Cellulosic/polymer composite material The present invention is a component such as a siding panel that may be comprised of various formulations of cellulosic/polymer composite materials. One embodiment of the present invention is a siding panel that is comprised of a cellulosic/PVC composite material. T... | 12/06/2005 |
| 6909028 | Stable breathable elastic garments A thermally stable microporous breathable film is provided comprising at least 35% filler, by weight of the filled-film, and a thermoplastic polymer blend of a first polyethylene polymer and a second polyethylene polymer. The first polyethylene polymer comprises 30%... | 06/21/2005 |
| 6902693 | Expanded porous thermoplastic polymer membranes and method for the production thereof Open celled membranes from thermoplastic polymers are prepared from foamed polymer melts by extrusion through a die. ... | 06/07/2005 |
| 6812263 | Polyvinyl chloride-based elements for floor cleaning units Formulations of polyvinyl chloride blended with nitrile rubber are provided. These formulations have been found to be useful in floor cleaning units, and provide a cost savings benefit, while meeting the physical and chemical property demands for the floor cleaning ... | 11/02/2004 |
| 6765033 | Expandable vinyl chloride resin composition An expandable vinyl chloride resin composition that the expansion ratio of a vinyl chloride resin can be greatly increased by the use of thermally decomposable inorganic blowing agents without the use of organic solvent blowing agents, and which comprises 100 parts ... | 07/20/2004 |
| 6746608 | Use of adsorbent polymer particles in DNA separation The invention is directed to fluorinated particles having adsorbent properties for superior performance as the stationary phase for use in chromatographic separations. In particular, the fluorinated surface of such particles of the invention presents unusual and une... | 06/08/2004 |
| 6723762 | Foamable vinyl chloride-base resin compositions There is provided a foamable poly(vinyl chloride) resin composition which can remarkably improve an expansion ratio. There is used a foamable poly(vinyl chloride) resin composition comprising 100 parts by weight of (A) a poly(vinyl chloride) resin, 0.5 to 30 parts b... | 04/20/2004 |
| 6635687 | Expandable vinyl chloride resin composition An expandable vinyl chloride resin composition which can provide foamed articles having a greatly enhanced expansion ratio without remarkably lowering the surface property and strength by the use of thermally decomposable blowing agents without the use of... | 10/21/2003 |
| 6627277 | Polytetrafluoroethylene tubing and extruder for the production thereof In an extruder for producing a polytetrafluoroethylene tube having a minimum thickness deviation by extruding a polytetrafluoroethylene paste through an annular portion formed by a core pin (30) and a die orifice (50) around it, the core pin comprises a m... | 09/30/2003 |
| 6610757 | Foamable vinyl chloride resin composition An expandable vinyl chloride resin composition that the expansion ratio of a vinyl chloride resin can be greatly increased by the use of thermally decomposable inorganic blowing agents without the use of organic solvent blowing agents, and which comprises... | 08/26/2003 |
| 6608115 | Polyvinyl chloride resins and method of preparation and use in the production of whitened polyvinyl chloride foam Polyvinyl chloride resin compositions and methods of preparation and use thereof for increasing the degree of whiteness in finished polyvinyl chloride foam. The resin compositions contain sulfur compounds selected from sulfonic acid derivatives, sulfinic ... | 08/19/2003 |
| 6605649 | Method of production of whitened polyvinyl chloride foam Polyvinyl chloride resin compositions and methods of preparation and use thereof for increasing the degree of whiteness in finished polyvinyl chloride foam. The resin compositions contain sulfur compounds selected from sulfonic acid derivatives, sulfinic ... | 08/12/2003 |
| 6579910 | Methods for manufacturing foam material including systems with pressure restriction element The invention provides systems, methods, and articles useful in the production of foams, and, in particular microcellular foams. The systems include a restriction element that reduces the backflow of polymer melt in an extruder while polymeric material is... | 06/17/2003 |
| 6538050 | Method of foaming a polymer composition using zeolite and foamed articles so made The present invention relates to a method of foaming a polymer comprising the steps of providing a composition comprising said polymer and a zeolite in an amount of 0.3% or more based on the weight of said polymer and extruding said composition. The inven... | 03/25/2003 |
| 6512013 | Titanium dioxide nucleating agent systems for foamable polymer compositions The invention concerns nucleating agent systems for foamable polymer compositions, preferably fluoropolymer resins, having foam cell nucleation sites using titanium dioxide based nucleating agents, and foamable polymers comprising the nucleating agents. T... | 01/28/2003 |
| 6506809 | Titanium dioxide nucleating agent systems for foamable polymer compositions The invention concerns nucleating agent systems for foamable polymer compositions, preferably fluoropolymer resins, having foam cell nucleation sites using titanium dioxide based nucleating agents, and foamable polymers comprising the nucleating agents. T... | 01/14/2003 |
| 6503958 | Biomaterials The present invention relates to porous polymers incorporating dihydroperfluoroalkyl acrylates and methacrylates and the like and their production. The invention also relates to the use of polymers derived from dihydroperfluoroalkyl acrylates and methacry... | 01/07/2003 |
| 6500873 | Polyvinyl chloride resins and method of preparation and use in the production of whitened polyvinyl chloride foam Polyvinyl chloride resin compositions and methods of preparation and use thereof for increasing the degree of whiteness in finished polyvinyl chloride foam. The resin compositions contain sulfur compounds selected from sulfonic acid derivatives, sulfinic ... | 12/31/2002 |
| 6479559 | Chlorinated vinyl chloride resin composition for siding extrusion molding and siding molded article using the same There is obtained a chlorinated vinyl chloride resin composition from which a siding molded article having good appearance and excellent heat resistance, impact resistance and weatherability is obtained. A chlorinated vinyl chloride resin composition for ... | 11/12/2002 |
| 6465535 | Grip material The present invention provides a vibration reducing grip material that includes a closed-cell poly(vinyl chloride) foam material having a Shore durometer of about 50 to about 70. According to one embodiment of the present invention, there is provided a vi... | 10/15/2002 |
| 6395795 | Titanium dioxide nucleating agent systems for foamable polymer compositions The invention concerns nucleating agent systems for foamable polymer compositions, preferably fluoropolymer resins, having foam cell nucleation sites using titanium dioxide based nucleating agents, and foamable polymers comprising the nucleating agents. T... | 05/28/2002 |
| 6380272 | Manufacturing method for structural members from foamed plastic composites containing wood flour Structural members for doors and the like can be manufactured from plastic foamed composites containing wood flour by the steps of (1) dry mixing a blend of powders including PVC powder, wood flour, powdered thermal stabilizers, powdered foaming agent and... | 04/30/2002 |
| 6348512 | Medium density chlorinated polyvinyl chloride foam and process for preparing The present invention relates to a medium density chlorinated polyvinyl chloride foam and the method of preparing such a foam. The foam having a specific gravity in the range of about 0.3 to about 1.5 comprises chlorinated polyvinyl chloride, a nitrogen c... | 02/19/2002 |
| 6344268 | Foamed polymer-fiber composite Foamed polymer-fiber composites, building materials and methods of making such building materials are provided by this invention. The composites include about 35-75 wt. % of a polymeric resin, about 25-65 wt. % fiber and have a specific gravity of less th... | 02/05/2002 |
| 6339108 | Oxygenator membrane The invention relates to an oxygenator membrane based on organically modified silicic-acid polycondensates into a process for preparation thereof. The oxygenator membrane is obtainable by processing a viscous to resinous liquid by conventional methods to ... | 01/15/2002 |
| 6310112 | Hydrogenated vinyl aromatic polymer foams This invention provides a thermoplastic polymer foam having a density of up to 800 kg/m3. The foam is made from a hydrogenated vinyl aromatic polymer that contains pendant cycloaliphatic groups. This polymer is conveniently made by hydrogenatin... | 10/30/2001 |
