Carbohydrate Or Derivative Dnrm Patents (Class 524/27)
  • Patent number: 7202289
    Abstract: The present invention is a biodegradable resin composition having excellent physical properties such as strength, water-resistance, molding workability, thermal-resistance, and suitable for a molded article for various electric products. The biodegradable resin composition of the present invention contains a biodegradable resin and filler coated with a biodegradable coating resin in which the filler coated with the biodegradable coating resin is contained within the biodegradable resin. Preferable aspects are such as an aspect that the filler is at least one of mica, talc and montmorillonite, an aspect that a filler content of the biodegradable resin is in the range of 5 mass % to 50 mass %, an aspect that an average diameter of the filler is in the range of 0.01 ?m to 200 ?m, and an aspect that the biodegradable resin is polylactic acid.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: April 10, 2007
    Assignee: Fujitsu Limited
    Inventors: Koji Nozaki, Takahisa Namiki
  • Patent number: 7199084
    Abstract: Suspensions are provided of water-soluble materials in non-aqueous carrier fluids using suspension agents that include thixotropic agents and, optionally, organophilic clays. Methods of forming such suspensions are provided. Methods are also provided for using such suspensions to prepare aqueous solutions, in particular thickened aqueous solutions, in particular for use in oilfield treatments.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: April 3, 2007
    Assignee: Schlumberger Technology Corporation
    Inventors: Michael Parris, Geoff Robinson
  • Patent number: 7169830
    Abstract: A tire sealant composition for use in pneumatic tires is provided. The tire sealant composition primarily serves to seal the tire around the wheel rim and particularly in the tread area of the tire against punctures. The composition includes a naturally derived viscous carrier fluid and at least one fibrous material, polymeric material or combination of both, wherein the composition remains fluid in use. The naturally derived viscous carrier fluid is preferably desugared molasses (less than 30% by weight sucrose) and is able to sustain a temperature of ?30° F. (?34.4° C. and below) without freezing. The tire sealant composition is fire-retardant, non-toxic, non-corrosive and non-abrasive and is environmentally friendly.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: January 30, 2007
    Inventor: Robert D. Fogal, Sr.
  • Patent number: 7163976
    Abstract: The addition of pulverulent monosaccharides, disaccharides or oligosaccharides to plastisols based on pulverulent organic polymers and plasticizers results in plastisols with good adhesion properties on a large number of substrates employed in automobile construction. These plastisols are distinguished by good adhesion properties and a high resistance to ageing, and can be employed in automobile construction both in shell construction and in the lacquering line and in the trim shop for adhesive, sealing and coating tasks.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: January 16, 2007
    Assignee: Henkel-Teroson GmbH
    Inventor: Guenter Butschbacher
  • Patent number: 7156137
    Abstract: The invention relates to a rubber composition which contains starch/plasticizer composite, precipitated silica and carbon black reinforcement together with a coupling agent wherein the coupling agent is an organosilane polysulfide having an average of from about 2 to about 2.6 connecting sulfur atoms in its polysulfidic bridge. The invention provides for a chemical reaction between a coupling agent and silica which is substantially decoupled from a reaction between a coupling agent and starch/plasticizer to form a filler reinforcement network in situ within the elastomer host followed by a subsequent phase mixing of the carbon black therewith. The invention further relates to the resulting rubber composition and articles of manufacture, including tires, having at least one component comprised of said rubber composition.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: January 2, 2007
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Filomeno Gennaro Corvasce, Fernand Antoine Joseph Fourgon
  • Patent number: 7144453
    Abstract: A composition for preparing a porous interlayer dielectric thin film which includes a saccharide or saccharide derivative, a thermo-stable organic or inorganic matrix precursor, and a solvent for dissolving the two solid components. Also provided is a dielectric thin film having evenly distributed nano-pores with a diameter of less than 50 ?, which is required for semiconductor devices.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: December 5, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin Heong Yim, Yi Yeol Lyu, Jung Bae Kim, Kwang Hee Lee
  • Patent number: 7125919
    Abstract: A tinting composition containing a colorant component is disclosed. In addition, a method of improving the viscosity stability of a composition upon the addition of a colorant component employing an associative thickener, a macromolecular organic compound having a hydrophobic cavity, a dispersing resin and combinations thereof is disclosed.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: October 24, 2006
    Assignee: Rohm and Haas Company
    Inventors: Jerome Michael Harris, Henry Jude Eichman, Ronald Carl Faulk
  • Patent number: 7041725
    Abstract: Modified polyurethanes based on polyurethane reactive systems composed of at least one organic polyisocyanate and a polyol formulation, which additionally contains at least one polymer modifier and at least one filler are prepared. These modified polyurethanes are useful in the production of electroplated/metallized molded articles.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: May 9, 2006
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Detlef Arntz, Eduard Mayer, Helmut Meyer
  • Patent number: 7037959
    Abstract: A polymer composition includes a first component being a hydroxy-functional polymer, a second component being a natural polymer and a third component being a thermoplastic polyester. The first component, second component and third component are compounded to form a polymer composition.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: May 2, 2006
    Assignees: The United States of America as represented by the Secretary of the Agriculture, Biotechnology Research and Development Corporation
    Inventors: Julious L. Willett, William M. Doane, Donald Garlotta
  • Patent number: 7026390
    Abstract: The present invention provides a variety of extended polyacrylic acid based binder compositions comprising a low molecular weight polyacrylic acid (typically hypophosphite or sulfite terminated), a crosslinking agent (such as triethanolamine or glycerol) and one or more water soluble materials, such as lignin, low molecular weight starch and soybean protein. The extended binder composition of the present invention provides a lower cost binder composition without degrading the performance and may be selected to alter one or more characteristics of the basic binder composition such binder wetting, emulsion compatibility, dust suppression and wash water flow properties.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: April 11, 2006
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: Frank C. O'Brien-Bernini, Liang Chen, Yadollah Delaviz, Kathleen M. Bullock, William E. Downey
  • Patent number: 6992123
    Abstract: A polishing pad of the present invention contains a water-insoluble matrix material comprising a crosslinked polymer such as a crosslinked 1,2-polybutadiene and water-soluble particles dispersed in the material, such as saccharides. The solubility of the water-soluble particles in water is 0.1 to 10 wt % at 25° C., and the amount of water-soluble particles eluted from the pad when the pad is immersed in water is 0.05 to 50 wt % at 25° C. Further, in the polishing pad of the present invention, the solubility of the water-soluble particles in water is 0.1 to 10 wt % at 25° C. at a pH of 3 to 11, and solubility thereof in water at 25° C. at a pH of 3 to 11 is within ±50% of solubility thereof in water at 25° C. at a pH of 7. In addition, the water-soluble particles contain an amino group, an epoxy group, an isocyanurate group, and the like. This polishing pad has good slurry retainability even if using slurries different in pH and also has excellent polishing properties such as a polishing rate and planarity.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: January 31, 2006
    Assignee: JSR Corporation
    Inventors: Hiroshi Shiho, Hiromi Aoi, Kou Hasegawa, Nobuo Kawahashi
  • Patent number: 6987138
    Abstract: This invention provides a novel rapidly biodegradable polylactide resin composition while maintaining the good mechanical strength and physical properties of polylactide. This biodegradable polylactide resin composition comprises at least one protein selected from silk, gelatin, keratin, elastin, gluten, zein, or soybean. This composition further comprises degraded mannan, and furthermore, a filler.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: January 17, 2006
    Assignee: National Institute of Advanced Industrial Science & Technology
    Inventors: Yutaka Tokiwa, Takao Raku
  • Patent number: 6965005
    Abstract: The invention provides a composition useful in the construction industry for the prevention or remediation of mold growth in a man made structure. The composition contains an extruded milo matrix incorporating terpenes, phytoalexins, calcium propionate or combinations of these chemicals having antifungal activity. Methods of making and using the compositions are also disclosed.
    Type: Grant
    Filed: October 11, 2004
    Date of Patent: November 15, 2005
    Inventors: Joseph P. Markham, Thomas Kieth Martin
  • Patent number: 6953816
    Abstract: The present invention provides a polymer composition for film formation which provides a film having sufficient elongation and strength even on the surface of the film with sharp irregularities by rewetting with water after coating and drying. The polymer composition for film formation contains at least one component selected from the group consisting of an emulsion comprising a homopolymer of polyvinyl acetate or a copolymer of polyvinyl acetate with a monomer selected from acrylic ester, acrylic amide, acrylic acid, methacrylic acid, methacrylic ester, maleic acid, maleic anhydride, and fumaric acid, and an aqueous solution of sap, fruit liquid, honey, and saccharide.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: October 11, 2005
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventor: Chizuko Okazaki
  • Patent number: 6951895
    Abstract: Disclosed is an absorbent composition comprising each of an acidic and a basic material, wherein the absorbent composition exhibits desirable absorbent properties. Specifically, the present invention relates to an absorbent composition comprising either an acidic water-swellable, water-insoluble polymer having a pKa between about 2 to about 12 or a basic water-swellable, water-insoluble polymer having a pKb between about 2 to about 12 and either a basic or an acidic second material. The absorbent composition has the ability to slowly absorb a large quantity of liquid, particularly while under an external pressure. The absorbent composition is useful in disposable absorbent products, such as those disposable absorbent products that are used to absorb bodily liquids.
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: October 4, 2005
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jian Qin, Palani Raj Ramaswami Wallajapet
  • Patent number: 6939536
    Abstract: A composition for treating a keratin based substrate that includes a cosmetically acceptable medium containing a water-soluble interjacent complex. The water-soluble interjacent complex includes a first water-soluble polymer and a second water-soluble polymer formed by polymerizing one or more water-soluble monomers in the presence of the first water-soluble polymer. The water-soluble interjacent complex is characterized in that it forms a solution in water that is free of insoluble polymer particles. The water-soluble interjacent complex is used in a method of treating a keratin based substrate, whereby a cosmetically acceptable medium is applied to the substrate and contains from 0.1-20% by weight of the water-soluble interjacent complex.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: September 6, 2005
    Assignee: WSP Chemicals & Technology, LLC
    Inventors: Shih-Ruey T. Chen, Valentino L. DeVito, Kevin W. Frederick
  • Patent number: 6939937
    Abstract: A mold inhibitor integrated within a matrix and a method of making the same are disclosed. The matrix is preferably made of a processed sorghum grain, and preferably from hybrids of Milo. The grain is subjected to decortication and extrusion. Agents are added to the decorticated Milo prior to extrusion. The agents may be anti-fungal agents or anti-microbial agents. In use, the produced matrix is spread and placed upon a targeted area which requires either remediation or prevention of growth of fungus or microbes.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: September 6, 2005
    Inventors: Joseph P. Markham, Thomas Kieth Martin
  • Patent number: 6916876
    Abstract: The invention relates to a powdered thickener preparation based on polyurethane, which can be incorporated particularly well into water-based paints and lacquers and into other aqueous systems, and to their use as rheological additives for thickening preferably aqueous systems.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: July 12, 2005
    Assignee: Borchers GmbH
    Inventors: Peter Manshausen, Frank Sauer, Thomas Steinhoff, Jan Mazanek, Christian Wamprecht, Christel Spinger, Uwe Priesnitz, Peter Happe
  • Patent number: 6896725
    Abstract: The invention concerns the use of a water-soluble or water-dispersible polymer having a molecular weight of at least 800, containing at least 5 aldehyde groups per molecule and at least 1 carboxyl group per molecule, the ratio of aldehyde groups to carboxyl groups being higher than 0.75:1, as a wet strength additive. The invention also discloses novel cationic derivatives thereof.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: May 24, 2005
    Assignee: SCA Hygiene Products Zeist B.V.
    Inventors: Jeffrey Wilson Thornton, Dorine Lisa Van Brussel-Verraest, Arie Besemer, Sussan Sandberg
  • Patent number: 6894136
    Abstract: The invention provides a composition useful in the construction industry for the prevention or remediation of mold growth in a man made structure. The composition contains an extruded milo matrix incorporating terpenes, phytoalexins, calcium propionate or combinations of these chemicals having antifungal activity. Methods of making and using the compositions are also disclosed.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: May 17, 2005
    Inventors: Joseph P. Markham, Thomas Kieth Martin
  • Patent number: 6878760
    Abstract: The invention relates to a rubber composition which contains starch/plasticizer composite, precipitated silica and carbon black reinforcement together with a coupling agent wherein the coupling agent is an organosilane polysulfide having an average of from about 2 to about 2.6 connecting sulfur atoms in its polysulfidic bridge. The invention provides for a chemical reaction between a coupling agent and silica which is substantially decoupled from a reaction between a coupling agent and starch/plasticizer to form a filler reinforcement network in situ within the elastomer host followed by a subsequent phase mixing of the carbon black therewith. The invention further relates to the resulting rubber composition and articles of manufacture, including tires, having at least one component comprised of said rubber composition.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: April 12, 2005
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Filomeno Gennaro Corvasce, Fernand Antoine Joseph Fourgon
  • Patent number: 6858312
    Abstract: Use of an aqueous composition, which has been prepared by dissolving (A) dihydroxypropylchitosan and (B) 1,2,3,4-butanetetracarboxylic acid (B) in an aqueous medium, makes it possible to provide articles excellent in hydrophilicity, antibacterial and deodorant activities, touch feeling, antifogging property, paper strength, dyeability, waterproofness, antifouling property and/or the like.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: February 22, 2005
    Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Nihon Parkerizing Co., Ltd.
    Inventors: Nobuyuki Kobayashi, Shinya Tsuchida, Takanori Sannan, Kazuya Tanaka, Tetsuo Otsuki, Ryoji Morita
  • Patent number: 6818686
    Abstract: The invention relates to a water based polymer composition comprising a biopolymer and a synthetic polymer resin. The biopolymer results from a mechanical thermoplastic processing of a polysaccharide and/or protein starting material using shear forces in the presence of a crosslinking agent. The synthetic polymer resin consists of a water based hydrophilic resin and/or hydrophilic/hydrophobic resin. These compositions have a good storage stability. They are intended for the production of coatings with fair properties.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: November 16, 2004
    Assignee: UCB, S.A.
    Inventors: Marc Colpaert, Dirk Bontinck, Patrice Roose
  • Publication number: 20040220299
    Abstract: The present invention provides a method of forming a polymer-wood composite structure and additive systems for use therein. The method of the invention includes extruding a heated mixture that includes from about 20% to about 80% by weight of a thermoplastic polymer, from about 20% to about 80% by weight of a cellulosic filler material, and from about 0.1% to about 10% by weight of an additive system. The additive system according the invention includes a blend of from about 10% to about 90% by weight of a nonionic compatibilizer having an HLB value of from about 9 to about 19 and from about 10% to about 90% by weight of a lubricant. Use of the method and additive system according to the invention facilitates the production of highly filled polymer-wood composite structures at a very high output rate while maintaining commercially acceptable surface appearance.
    Type: Application
    Filed: April 30, 2003
    Publication date: November 4, 2004
    Applicant: Ferro Corporation
    Inventors: Gerald W. Drabeck, Juan Bravo, Michael DiPierro, Anna C. Andrews, James M. McKinney, Brenda Hollo, Deenadayalu Chundury
  • Patent number: 6800593
    Abstract: Disclosed is a hydrophilic, water soluble polymer concentrate for addition to aqueous liquids to enhance the properties thereof, particularly to increase the viscosity or decrease the fluid loss of well drilling and servicing fluids, the concentrate comprising a hydrophobic, water insoluble liquid, an organophilic clay suspension agent, the water soluble polymer, and a stabilizing agent comprising one or more acids in an amount from about 0.001% to about 1.5%, one or more anionic surfactants in an amount from about 0.001% to about 1.0%, one or more nonionic surfactants in an amount from 0.001% to about 0.625% and, from about 0% to about 0.75% of one or more water soluble organic liquids, wherein the total concentration of the stabilizing agent is from about 0.1% to about 2.5%, these percentages being based on the weight of the concentrate.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: October 5, 2004
    Assignee: Texas United Chemical Company, LLC.
    Inventors: James W. Dobson, Jr., Shauna Leigh Hayden, Carolina Trejo Rangel
  • Patent number: 6780918
    Abstract: Process for the preparation of protective colloid-stabilized aqueous dispersions.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: August 24, 2004
    Assignee: PolymerLatex GmbH & Co.KG.
    Inventor: Davide Brizzolara
  • Publication number: 20040143038
    Abstract: The present invention is directed to a building composition containing a polysaccharide, an organic polymer binder and an aging stabilizer. The aging stabilizer helps minimizes viscosity loss of the wetted composition, thereby providing anti-aging viscosity stability. The composition may contain gypsum or be gypsum-free and cement-free.
    Type: Application
    Filed: January 16, 2003
    Publication date: July 22, 2004
    Inventor: Thomas Aberle
  • Publication number: 20040138336
    Abstract: The present invention is directed to a 3DP™ material composition and method of use. The composition of the present invention includes an adhesive material, a fibrous component and a filler. Alternatively, the composition may include a particulate material having a mean particle size between about 10 microns and about 300 microns, a soluble adhesive material. The compositions may also include an accelerator and an additional adhesive.
    Type: Application
    Filed: August 26, 2003
    Publication date: July 15, 2004
    Applicant: Z Corporation
    Inventors: James F. Bredt, Timothy C. Anderson, David B. Russell
  • Patent number: 6762222
    Abstract: Aqueous amino resin compositions comprising amino resins A, formaldehyde-binding additives (auxiliaries) B, which may include hydroxyl-containing polyurethanes B13, acrylic resins C, if desired, in the form of aqueous dispersions, and water, and their use as impregnating compositions for paper for the purpose of producing finished foils and edgings.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: July 13, 2004
    Assignee: Solutia Germany GmbH & Co. KG
    Inventors: Frank Scholl, Johann Wonner, Gerald Hobisch
  • Patent number: 6699363
    Abstract: A process that can be used for producing a starch product is provided. The process comprises heating a composition, which comprises or consists essentially of a starch, a polyacrylamide, and a multivalent cation. The weight ratio of starch to polyacrylamide is greater than about 2 to 1. The process can also comprise heating a composition, which comprises or consists essentially of a starch and a polyacrylamide to produce a heated composition followed by contacting the heated composition with a multivalent cation. The heating can be carried out at a pH above 7.0 if the polyacrylamide is a cationic polyacrylamide or nonionic polyacrylamide and, if the starch is a cationic starch and the polyacrylamide is an amphoteric polyacrylamide or anionic polyacrylamide, the heating neutralizes less than 75% of the cationic starch.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: March 2, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Robert Harvey Moffett
  • Patent number: 6669771
    Abstract: The present invention provides a biodegradable resin composition with improved biodegradability or with an additional useful function (antibacterial properties), while maintaining the mechanical properties of the biodegradable resin. More specifically, the present invention provides a biodegradable resin composition containing a biodegradable resin such as a polylactic acid polymer and a mamman digestion product such as a mannooligosaccharide. The present invention further provides various biodegradable products produced by molding this biodegradable resin composition into desired shapes.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: December 30, 2003
    Assignees: National Institute of Advanced Industrial Science and Technology, Allmighty Co., Ltd.
    Inventors: Yutaka Tokiwa, Akihito Tsuchiya
  • Publication number: 20030236323
    Abstract: In one aspect, the present invention provides hydrogels comprising polymer molecules and bridging molecules, wherein substantially all the polymer molecules are cross-linked by hydrogen bonds between polymer molecules and bridging molecules, wherein each bridging molecule is linked to at least two polymer molecules, and wherein there are substantially no covalent linkages between the polymer molecules. In some embodiments, the polymer molecules are poly(vinyl alcohol) (PVA) and the bridging molecules are amino acids. Some embodiments of the invention provide devices comprising hydrogels, and pharmaceutical compositions comprising biologically active molecules within hydrogels. Another aspect provides methods for forming hydrogels of the invention.
    Type: Application
    Filed: January 9, 2003
    Publication date: December 25, 2003
    Inventors: Buddy D. Ratner, Prabha D. Nair, Maximiliane Silvia Boeckl, Elizabeth Reeves Leber
  • Patent number: 6664333
    Abstract: Selectively cold-water responsive compositions constructed of combinations of polymers including at least one hydrolytically degradable polymer and at least one cold-water soluble polymer are provided. Additionally, methods of making and using selectively cold-water sensitive compositions are described. In one embodiment, the method comprises combining a polylactide and a cold-water soluble polyvinyl alcohol at a temperature above the melting point of the polymer having the higher melting point, and below the decomposition point of the polymer having the lower decomposition point, to form a homogeneous polymer blend is also provided. The cold-water responsive properties of the compositions of the present invention may be varied include water dispersible, water disintegratable, and water weakenable.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: December 16, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: James Hongxue Wang, David Michael Schertz
  • Patent number: 6632862
    Abstract: A polymer composition includes a first component being a hydroxy-functional polymer, a second component being a natural polymer and a third component being a thermoplastic polyester. The first component, second component and third component are compounded to form a polymer composition.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: October 14, 2003
    Assignees: The United States of America as represented by the Secretary of Agriculture, Biotechnology Research and Development Corporation
    Inventors: Julius L. Willett, William M. Doane, Sterling St. Lawrence, Parvinder Walia
  • Publication number: 20030183973
    Abstract: According to the invention, a synthetic resin composition having a desirable a low coefficient of friction when submersed in a liquid is provided. In addition, a method of making a low friction bearing for use under liquid is provided as well as a low friction bearing or use underwater.
    Type: Application
    Filed: February 28, 2003
    Publication date: October 2, 2003
    Applicant: Minebea Co., Ltd.
    Inventors: Kazuo Hokkirigawa, Rikuro Obara
  • Publication number: 20030176539
    Abstract: An endless power transmission belt having
    Type: Application
    Filed: March 6, 2003
    Publication date: September 18, 2003
    Inventors: Frank Joseph Feuerborn, Darren Blaine Moncrief
  • Publication number: 20030171458
    Abstract: The invention relates to methods of making carbohydrate and polyol esters suitable for use as plasticizers for polymer compositions. The invention also relates to plasticized polymer compositions comprising such carbohydrate and polyol esters. The invention also relates to articles prepared from such plasticized polymer compositions. The invention further relates to methods of using these compositions.
    Type: Application
    Filed: January 10, 2003
    Publication date: September 11, 2003
    Inventors: Charles M. Buchanan, Norma L. Buchanan, Kevin J. Edgar, Juanelle L. Lambert
  • Patent number: 6610764
    Abstract: Biocompatible polyhydroxyalkanoate compositions with controlled degradation rates have been developed. In one embodiment, the polyhydroxyalkanoates contain additives to alter the degradation rates. In another embodiment, the polyhydroxyalkanoates are formed of mixtures of monomers or include pendant groups or modifications in their backbones to alter their degradation rates. In still another embodiment, the polyhydroxyalkanoates are chemically modified. Methods for manufacturing the devices which increase porosity or exposed surface area can be used to alter degradability. For example, as demonstrated by the examples, porous polyhydroxyalkanoates can be made using methods that creates pores, voids, or interstitial spacing, such as an emulsion or spray drying technique, or which incorporate leachable or lyophilizable particles within the polymer. Examples describe poly(4HB) compositions including foams, coatings, meshes, and microparticles.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: August 26, 2003
    Assignee: Metabolix, Inc.
    Inventors: David P. Martin, Frank Skraly, Simon F. Williams
  • Publication number: 20030139495
    Abstract: A polymer blend is prepared by dissolving chitosan and a second polymer in an acidic aqueous solution to form an aqueous polymer blend, dehydrating said aqueous polymer blend, and recovering said polymer blend. The second polymer may be selected from the group consisting of polyether glycols including polyethylene glycols; cellulose esters including cellulose acetate; poloxamers; polysaccharides including dextran and guar; polyvinylpyrrolidones; polyvinyl alcohols; and mixtures or copolymers thereof. These polymer blends swell in an acidic environment and deswell in a more neutral or basic environment. This technology is valuable for the dispensing of biologically active material or drugs into a surrounding environment, especially the environment as is found in the gastrointestinal tract.
    Type: Application
    Filed: December 20, 2002
    Publication date: July 24, 2003
    Inventors: Gaylen M. Zentner, Jong-Seok Bark, Feng Liu
  • Publication number: 20030124189
    Abstract: A polymer blend is prepared by dissolving chitosan and a second polymer in an acidic aqueous solution to form an aqueous polymer blend, dehydrating said aqueous polymer blend, and recovering said polymer blend. The second polymer may be selected from the group consisting of polyether glycols including polyethylene glycols; cellulose esters including cellulose acetate; poloxamers; polysaccharides including dextran and guar; polyvinylpyrrolidones; polyvinyl alcohols; and mixtures or copolymers thereof. These polymer blends swell in an acidic environment and deswell in a more neutral or basic environment. This technology is valuable for the dispensing of biologically active material or drugs into a surrounding environment, especially the environment as is found in the gastrointestinal tract.
    Type: Application
    Filed: December 20, 2002
    Publication date: July 3, 2003
    Inventors: Gaylen M. Zentner, Jong-Seok Bark, Feng Liu
  • Publication number: 20030125426
    Abstract: A composite molding compound comprising a combination of metal and ceramic powders is disclosed. The powders are combined with a binder, a liquid carrier and other processing additives in a manner to provide uniform distribution of two phases in a material format that facilitates the molding of complex parts at relatively low pressures and temperatures using conventional injection molding machines. The products formed from these molding compounds may be designed with tailored physical and mechanical properties such as thermal conductivity, thermal expansion coefficient, density, elastic modulus and wear properties.
    Type: Application
    Filed: July 1, 2001
    Publication date: July 3, 2003
    Applicant: AlliedSignal Inc.
    Inventors: Mohammad Behi, Michael Zedalis, Richard Lewis Duyckinck, Joan Burlew
  • Patent number: 6569939
    Abstract: The invention provides a polymer composition for flexibilizing building materials, in the form of their aqueous dispersion or of powder redispersible in water, containing a) at least one water-insoluble, film-forming polymer of one or more ethylenically unsaturated monomers capable of free radical polymerization, b) at least one compound from the group consisting of the water-soluble polymers of one or more ethylenically unsaturated monomers capable of free radical polymerization, and the ionic and nonionic emulsifiers, and c) a mixture of at least two organosilicon compounds, at least one of which is an amino-functional organosilicon compound present in salt form.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: May 27, 2003
    Assignee: Wacker-Chemie GmbH
    Inventors: Herbert Eck, Klaus Adler, Hermann Lutz, Heinrich Hopf
  • Publication number: 20030092801
    Abstract: The present invention relates to a rubber composition comprised of a functionalized elastomer which contains a dispersion of a starch/plasticizer composite and coupling agent and to pneumatic tires having at least one component comprised of such rubber composition. The rubber composition may also contain one or more additional elastomers and may contain at least one particulate reinforcing agent selected from, for example, precipitated silica aggregates, carbon black and carbon black which contains silica domains on its surface. Such tire component can be, for example, its circumferential tread or other component of the tire.
    Type: Application
    Filed: October 15, 2002
    Publication date: May 15, 2003
    Inventors: Giorgio Agostini, Filomeno Gennaro Corvasce, Georges Marcel Victor Thielen
  • Publication number: 20030085495
    Abstract: A method of making a water-based ceramic that contains carrageenan and various average-molecular-weight preparations of poly(ethylene oxide). Various other materials can be added to yield mixtures appropriate for specialized applications.
    Type: Application
    Filed: May 10, 2002
    Publication date: May 8, 2003
    Inventor: Jonathan Singer
  • Publication number: 20030087996
    Abstract: A cellulose/polyolefin pellet comprising polyolefin material and cellulosic material. The pellet may be concentrated such that it contains less than about 20% by weight of the polyolefin material and at least about 55% by weight of the cellulosic material. The pellet may be shipped to a remote manufacturing location where it may be blended with additional polyolefin material to make a synthetic wood component.
    Type: Application
    Filed: October 25, 2001
    Publication date: May 8, 2003
    Inventors: Herbert L. Hutchison, Jeffrey R. Brandt
  • Publication number: 20030083404
    Abstract: There is disclosed a rubber composition comprising:
    Type: Application
    Filed: October 7, 2002
    Publication date: May 1, 2003
    Inventors: Uwe Ernst Frank, Francois Kayser
  • Publication number: 20030079654
    Abstract: The present invention provides a biodegradable resin composition with improved biodegradability or with an additional useful function (antibacterial properties), while maintaining the mechanical properties of the biodegradable resin. More specifically, the present invention provides a biodegradable resin composition containing a biodegradable resin such as a polylactic acid polymer and a mamman digestion product such as a mannooligosaccharide. The present invention further provides various biodegradable products produced by molding this biodegradable resin composition into desired shapes.
    Type: Application
    Filed: September 13, 2002
    Publication date: May 1, 2003
    Inventors: Yutaka Tokiwa, Tsuchiya Akihito
  • Publication number: 20030083403
    Abstract: Fracturing fluid compositions and methods for their preparation and use are disclosed. The compositions are useful in the oil and gas drilling operations, as well as in gravel packing operations, water blocking, temporary plugging for purposes of wellbore isolation and/or fluid loss control, and other uses. The compositions comprise a liquid, a polymer soluble in the liquid, having a degree of substitution of ionic groups of about 0.01 to about 0.1; and a crosslinking agent capable of increasing the viscosity of the fracturing fluid by crosslinking the polymer in liquid.
    Type: Application
    Filed: June 21, 2002
    Publication date: May 1, 2003
    Inventors: Jeffrey C. Dawson, Hoang Van Le
  • Patent number: 6544532
    Abstract: The invention relates to a composition containing, in a physiologically acceptable medium, an unstable active agent in an oxidizing medium and an oil phase comprising cross-linked elastomer solid organopolysiloxane particles consisting of at least one oxyalkylene group and oxyethylene in particular. The unstable active agent in an oxidizing medium is stabilized in the inventive composition. The invention also relates to the use of cross-linked elastomer solid organopolysiloxane particles having an oxyalkylene group for the stabilization of an unstable active agent in an oxidizing medium. The unstable active agent can be vitamin C, vitamin A and/or carotenoids. The composition can be anhydrous or take the form of an emulsion. It is particularly suitable for use in cosmetics. It is soft and fresh when applied, spreads easily, is not sticky and does not make the skin or lips dry.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: April 8, 2003
    Assignee: L'Oreal
    Inventors: Nathalie Jager-Lezer, Raluca Lorant
  • Publication number: 20030065061
    Abstract: The present invention describes plastic materials and food additives that are free or substantially free from endocrine disruptive chemicals. The plastic materials may be used in products which are exposed to individuals in which endocrine disruptive activity is particularly disadvantageous, such as baby bottles, baby toys, food containers, medical containers, animal cages and medical products. The food additives may be used in food products that are ingested by individuals in which endocrine disruptive activity is particularly disadvantageous, such as newborns or the physically infirm. The present invention also describes a series of assays which, when performed in combination, provide a novel method for determining the presence of endocrine disruptive activity.
    Type: Application
    Filed: May 10, 2002
    Publication date: April 3, 2003
    Inventor: George D. Bittner