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| Number | Title | Issue Date |
| 7361727 | Copolymerization of 1,4-dioxan-2-one and a cyclic ester monomer producing thermal stabilized 1,4-dioxan-2-one (co)polymers A polymerization process to derive a thermal-stabilized poly(1,4-dioxan-2-one) and cyclic ester monomer copolymer using a coordination-insertion catalyst/initiator. 1,4-dioxan-2-one and cyclic ester monomer, each containing less than 100-ppm water and having an acid... | 04/22/2008 |
| 7320773 | Biodegradable laminate sheet and molded item from biodegradable laminate sheet A biodegradable laminate sheet having as its object to provide a formed body superior in heat resistance, shock resistance, transparency and formability, and having non-stretched polylactic acid-family resin layer of which the crystallinity is 20% or less, and a lay... | 01/22/2008 |
| 7220477 | Film for lamination and laminated member using the film A film for lamination comprising a polyester resin containing a polyfunctional component in an amount of 0.01 to 0.50 mol % and having a melt tension of not smaller than 50 mN. Even when laminated on a metal plate by a high-speed extrusion lamination method, the fil... | 05/22/2007 |
| 7201958 | Polymer foam plank with densified skin, method and apparatus for producing a densified skin on a foam plank A method and apparatus for making a densified skin polymer foam plank comprising providing a polymer foam having a plurality of cells and heating an outer surface of the foam at a heating station. The heating step collapses and melts the cells adjacent the outer sur... | 04/10/2007 |
| 7151120 | Degradable porous materials with high surface areas A method for preparing a highly porous, high surface area degradable or partially degradable material. The method comprises the steps of mixing a degradable or partially degradable polymer with a mixed solvent comprising a first solvent and a second solvent, wherein... | 12/19/2006 |
| 7112417 | Foam composite for the repair or regeneration of tissue The present patent describes a biocompatible composite made of a first fibrous layer attached to a three-dimensional inter-connected open cell porous foams that have a gradient in composition and/or microstructure through one or more directions. These composites can... | 09/26/2006 |
| 7056957 | Formation of strong superporous hydrogels The present invention features a method for the formation of superporous hydrogels using an ion-equilibration technique. Anionic polysaccharides are included in the hydrogel reaction mixture and cations are introduced either during or after hydrogel formation. Prope... | 06/06/2006 |
| 7049348 | Resorbable structure for treating and healing of tissue defects Devices and processes (e.g., improved Plasticized Melt Flow processes (PMF) or improved Phase Separation Polymer Concentration (PSPC), etc.) used to make resorbable and non-resorbable structures for treating and/or healing of tissue defects are disclosed. Among the ... | 05/23/2006 |
| 7015302 | Copolymers of monocyclic esters and carbonates and methods for making same Copolymers having repeating units derived from monocyclic esters or carbonates and certain bicyclic diesters and/or carbonates have controllable rheological properties. The bicyclic diester and/or carbonate copolymerizes easily with the monocyclic monomers, especial... | 03/21/2006 |
| 6960617 | Hydrogels having enhanced elasticity and mechanical strength properties Hydrogels having improved elasticity and mechanical strength properties are obtained by subjecting a hydrogel formulation containing a strengthening agent to chemical or physical crosslinking conditions subsequent to initial gel formation. Superporous hydrogels havi... | 11/01/2005 |
| 6867240 | Porous composite materials 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 ... | 03/15/2005 |
| 6833094 | Dimensionally stable parts having good torsional stability and compositions and methods for making same Compositions, apparatus and methods of the present invention concern the manufacturing parts that remain strong and dimensionally stable after exposure to e-coat painting conditions. Such manufacturing includes providing a molding compound having about 55-65% by wei... | 12/21/2004 |
| 6797738 | Open pore biodegradable matrices The invention is directed to a process for preparing porous polymer materials by a combination of gas foaming and particulate leaching steps. The invention is also directed to porous polymer material prepared by the process, particularly having a characteristic inte... | 09/28/2004 |
| 6774208 | Friction heat, cryogenic quench solid state polymerization A two step method for solid state polymerization of dry crystalline thermoplastic polymers to form polymers with superior mechanical properties, first by mechanically fluidizing dry crystalline thermoplastic polymer particles in the absence of oxygen by means of bla... | 08/10/2004 |
| 6766571 | Adhesive composition comprising thermoplastic polyester and trapped gas bubbles A glazing adhesive product comprising a thermoplastic polyester material having trapped gas bubbles dispersed therein whereby the product has surface pores to provide a suction effect. Also provided is a method of installing/removing vehicle glazing. ... | 07/27/2004 |
| 6723761 | Microcellular foaming A method for forming microcellular foams that causes the material to expand uniaxially during the foaming process, and a method for forming objects from the foam. Liquid crystal polymers or polymers having a planar crystalline structure are saturated with a fluid, n... | 04/20/2004 |
| 6703431 | Flexible open-celled microcellular polymer foams Flexible open-celled microcellular foams based on thermoplastic polymers are useful for fluid-absorbent hygiene articles.... | 03/09/2004 |
| 6686400 | Foamed and expanded beads of polyester-based resin and foam molding obtained therefrom Foamed and expanded beads including a polyester-based resin containing at least 35 mole % of an aliphatic ester component. The foamed beads have a gel fraction of at least 5 % by weight and comprises at least one gel accelerating agent selected from fatty... | 02/03/2004 |
| 6630543 | Method of making biodegradable polymer compositions A method of making a biodegradable polymer composition including the steps of providing a first component being either one of a thermoplastic poly(hydroxy ester ether) or a synthetic, hydroxy-functional polymer and providing a second component being a nat... | 10/07/2003 |
| 6596784 | Strengthened thermoplastic for window coverings A thermoplastic window covering article, and the method for making the same. The window covering article is formed of a closed cell foam of a thermoplastic strengthened with diatomaceous earth having less than about two percent moisture.... | 07/22/2003 |
| 6583189 | Strengthened thermoplastic A thermoplastic article, and the method for making the same. The article is formed of a closed cell foam thermoplastic or substantially solid thermoplastic strengthened with diatomaceous earth having less than about two percent moisture.... | 06/24/2003 |
| 6511650 | Preparing porous hydrogel products This invention is directed to a new approach to form porous hydrogel materials by first creating gas pockets in the gel and then removing this gas. The removal of the gas creates a porous material, and the initial incorporation of sufficient gas allows on... | 01/28/2003 |
| 6486285 | Water-swellable polymer gel and process for preparing the same A water-swellable polymer gel prepared by reacting an ester of a carboxyl group-containing polysaccharide with a compound having at least two -amino groups, which is derived from a natural amino acid, and a foamed article thereof. The water-swellab... | 11/26/2002 |
| 6479562 | Blow-molded foamed films of polyester resin A blown foamed film of polyester resin, obtained by blow-molding a foamed tubular sheet at the outlet of a foaming extruder.... | 11/12/2002 |
| 6472443 | Porous polymer media Highly crosslinked monolithic porous polymer materials for chromatographic applications. By using solvent compositions that provide not only for polymerization of acrylate monomers in such a fashion that a porous polymer network is formed prior to phase s... | 10/29/2002 |
| 6461732 | Composites consisting of polyurethane and a thermoplastic material containing an inorganic polar additive Composites of at least two different plastics materials joined directly to one another, wherein A) is a thermoplastic polymer or a thermoplastic mixture of polymers which contain at least one polar compound of at least one of the metals of the 1st to the ... | 10/08/2002 |
| 6458858 | Biodegradable polyester material particles In a process for preparing expanded or expandable polymer beads based on biodegradable saturated polyesters made from at least one diol and from at least one dicarboxylic acid, A. polymer pellets are dispersed in a liquid, B. a volatile blowing agent is inject... | 10/01/2002 |
| 6365249 | Polyester resin foamed sheets Polyester resin foamed sheet, usable for the production of containers for beverages and foods, having a density lower than 700 kg/m3 and crystallization rate such that, when the material is heated at 120° C. for 5 minutes, the crystallinity do... | 04/02/2002 |
| 6339109 | Method of pelletization of polymer A method of preparing cellular pellets from a prepolymer comprising a blowing agent, the method comprising the steps of: a) extruding the prepolymer through a die, the die maintained at conditions such that the blowing agent remains in the condensed phase in t... | 01/15/2002 |
| 6313185 | Polymers having backbones with reactive groups employed in crosslinking as precursors to nanoporous thin film structures Nanoporous materials are fabricated from polymers having backbones with reactive groups used in crosslinking. In one aspect of preferred methods and compositions, the reactive groups in the backbone comprise a diene and a dienophile. The diene may advanta... | 11/06/2001 |
| 6306921 | Foamed beads of polyester resin Foamed beads of polyester resin having rheological and crystallizability characteristics suitable for the preparation of foamed articles by sintering beads in a mold heated with superheated steam or with inert gas or air.... | 10/23/2001 |
| 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 |
| 6291539 | Flexible, low density thermoplastic foams and methods for lowering the density and increasing the flexibility of thermoplastic foams A flexible, low density thermoplastic foam and a method for lowering the density and increasing the flexibility of a thermoplastic foam having a melting temperature and being either amorphous with a softening temperature or semicrystalline with a glass tr... | 09/18/2001 |
| 6281256 | Open pore biodegradable matrices The invention is directed to a process for preparing porous polymer materials by a combination of gas forming and particulate leaching steps. The invention is also directed to porous polymer material prepared by the process, particularly having a characte... | 08/28/2001 |
| 6271278 | Hydrogel composites and superporous hydrogel composites having fast swelling, high mechanical strength, and superabsorbent properties A superporous hydrogel composite is formed by polymerizing one or more ethylenically-unsaturated monomers, and a multiolefinic crosslinking agent, in the presence of particles of a disintegrant and a blowing agent. The disintegrant, which rapidly absorbs ... | 08/07/2001 |
| 6258924 | Biodegradable polymers, the preparation thereof, and the use thereof for producing biodegradable moldings Biodegradable polyether esters P1 obtainable by reacting a mixture essentially comprising: (a1) a mixture essentially comprising: 20-95 mol % of adipic acid or ester-forming derivatives thereof or mixtures thereof, 5-80 mol % of terephthalic acid or ester-form... | 07/10/2001 |
| 6214897 | Compositions of polycondensed branched polyester polymers and aromatic polycarbonates, and the closed cell polymer foams made therefrom A foamable polyester composition comprising a combination of blowing agent and mixed polymer composition comprising: a) a semi-crystalline polyester composition comprising a polycondensed branched polyester polymer, and b) an aromatic polycarbonate polymer. Th... | 04/10/2001 |
| 6191178 | Polycarbonate resin foam and shock absorber using the same A polycarbonate resin foamed molding having a density D of 0.6 g/cm3 or less and at least 30 (kg.multidot.cm/cm3)/(g/cm3) of a value E80 /D obtained by dividing an amount of energy absorbed through 50% compressi... | 02/20/2001 |
| 6172128 | Nanoporous polymers crosslinked via cyclic structures Nanoporous polymeric materials are fabricated in which polymeric strands are crosslinked via ring structures. Preferred ring structures are formed de novo during crosslinking, and at least some of the ring structures are preferably included in the backbon... | 01/09/2001 |
| 6156812 | Nanoporous material fabricated using polymeric template strands Compositions and methods are provided in which nanoporous polymeric materials are produced via stable, polymeric template strands having reactive groups that can be used for forming crosslinking functionalities and/or adding thermolabile groups, wherein a... | 12/05/2000 |
