Algin Or Derivative Patents (Class 524/28)
  • Patent number: 11320570
    Abstract: A wavelength converting device includes a diffused-reflecting layer, a substrate, and a photoluminescence layer. The diffused-reflecting layer has a first surface and a second surface facing away from the first surface, and the diffused-reflecting layer includes a hydrophilic binder and a lipophilic binder. The substrate is on the first surface of the diffused-reflecting layer. The photoluminescence layer is on the second surface of the diffused-reflecting layer.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: May 3, 2022
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Jih-Chi Li, Li-Cheng Yang, Wen-Cheng Huang
  • Patent number: 11285240
    Abstract: Embolic particles are described. The particles are reaction products of a prepolymer solution including at least one polyether macromer and an appropriate monomer.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: March 29, 2022
    Assignee: MicroVention, Inc.
    Inventors: Gregory M. Cruise, Steve Plotkin, Xinping Wu
  • Patent number: 10792390
    Abstract: Embolic particles are described. The particles are reaction products of a prepolymer solution including at least one polyether macromer and an appropriate monomer.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: October 6, 2020
    Assignee: MicroVention, Inc.
    Inventors: Gregory M. Cruise, Steve Plotkin, Xinping Wu
  • Patent number: 9907880
    Abstract: Embolic particles are described comprising a treated polymer particle. The particles are reaction products of a prepolymer solution including at least one polyether macromer and an appropriate monomer. The treated polymer particles can have a first diameter that is smaller than a second diameter, wherein the second diameter is achieved when the treated polymer particle is subjected to a physiological condition. Methods of making and using these polymer particles are also described.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: March 6, 2018
    Assignee: MicroVention, Inc.
    Inventors: Gregory M. Cruise, Steve Plotkin, Xinping Wu
  • Patent number: 9556328
    Abstract: The present invention relates to biodegradable hydrophobic composite materials and a process for the preparation of said hydrophobic biodegradable materials from the seaweed polysaccharides through grafting reaction with vinylated monomers e.g. vinyl acetate. The said composites can be used as a substitute for synthetic ropes for varied applications including seaweed cultivation in the open sea. The results of cultivation experiments showed that ropes are suitable for cultivation of seaweeds in the sea environment, and exhibit higher biomass yield as compared to synthetic ropes. The prepared composites are very flexible and can be used for making handles for carry bags and for the preparation of biodegradable designs, bowls, pots, jars, gift items, stud caps and bracelets.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: January 31, 2017
    Assignee: Council of Scientific & Industrial Research
    Inventors: Ramavatar Meena, Pushpito Kumar Ghosh, Dharmesh Chejara, Karuppanan Eswaran, Arup Kumar Siddhanta, Kamalesh Prasad, Jai Prakash Chaudhary
  • Patent number: 9463145
    Abstract: Denture adhesive compositions having good hold and improved taste containing a salt of a copolymer of alkyl vinyl ether-maleic acid or anhydride. Compositions containing from about 25% to about 45%, by weight of the composition, of a salt of a copolymer of alkyl vinyl ether-maleic acid or anhydride containing a cationic salt function containing: i) from about 60% to about 72% cations selected from calcium, strontium, magnesium, or combinations thereof; ii) from 0% to about 10% sodium cations; iii) less than 1% zinc cations; and iv) from about 25% to about 40% of a free acid component; and further containing from about 15% to about 25%, by weight of the composition of a carboxymethyl cellulose having a molecular weight of from about 200,000 to about 1,000,000 daltons; and a carrier. Methods of improving the adhesion of dentures to the oral cavity by applying such compositions to dentures, the oral cavity, or both, and thereafter securing the denture to the ridge or palate of the oral cavity.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: October 11, 2016
    Assignee: THE PROCTER & GAMBLE COMPANY
    Inventors: Jayanth Rajaiah, Robert Scott Leonard, Rafael Edmundo Bras, Franco Medeiros
  • Publication number: 20150148457
    Abstract: This invention relates to a process for preparing multi-color dispersions and the multi-color dispersions made thereof.
    Type: Application
    Filed: June 6, 2012
    Publication date: May 28, 2015
    Applicants: Rohm and Haas Company, Dow Global Technologies LLC
    Inventors: Dong Yun, Yujiang Wang, Jian Sun, Peng Xu, Fei Guo
  • Patent number: 8877842
    Abstract: Binder for granular and/or fibrous substrates.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: November 4, 2014
    Assignee: BASF SE
    Inventors: Christian Krueger, Ulrich Schuetze, Oliver Labisch
  • Publication number: 20140306187
    Abstract: An adhesive includes a polymer matrix, and a plurality of adhesive capsules in the polymer matrix, wherein each of the adhesive capsules includes a shell, configured to shatter under pressure, and an adhesive polymer in the shell.
    Type: Application
    Filed: July 30, 2013
    Publication date: October 16, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Hyun Kim, Myung-Soo Huh
  • Patent number: 8808442
    Abstract: Hydraulically applied fiber matrix compositions for use on soils include a water-soluble, crosslinkable, hydratable gum, and a compound capable of crosslinking the water-soluble, crosslinkable, hydratable gum. The compositions may further include hydrocolloids and mulch. The hydraulically applied fiber matrix compositions are useful for hydroseeding and soil stabilization.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: August 19, 2014
    Assignee: Chemstar Products Company
    Inventors: Cory J. Bernu, Jeremy L. Bachman, Paul F. Werler
  • Patent number: 8741990
    Abstract: The invention relates to an adhesive composition comprising hydrophilic silicone elastomers and hydrophobic silicone elastomers and optionally water absorbent material, wherein the ratio between the hydrophilic silicone elastomers and the hydrophobic silicone elastomers is from 95:5 to 5:95. The adhesive is suited for medical use due to its skin-friendliness. The invention further relates to a medical device comprising said adhesive composition.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: June 3, 2014
    Assignee: Coloplast A/S
    Inventor: Chaabane Bougherara
  • Patent number: 8691003
    Abstract: An indicator is useful for detecting pressure points on a denture. The indicator is made of a composition that easily adheres to oral mucosa, has a proper viscosity in an oral cavity environment, can be properly spread between an oral mucosa surface and a denture base, and easily specifies an affected part. The composition includes a fatty acid ester having a melting point of 30 to 50° C., a water-soluble high polymer, and a metal oxide. Preferably, the fatty acid is 40 to 95% by weight of the composition, the water-soluble high polymer is 1 to 59% by weight of the composition, and the metal oxide is 0.1 to 50% by weight of the composition.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: April 8, 2014
    Assignee: GC Corporation
    Inventors: Yutaka Shinozaki, Hiroshi Kamohara
  • Patent number: 8641815
    Abstract: A precursor batch composition that can be used to make porous ceramic articles is provided. In addition to a cellulosic binder and an aqueous solvent, the batch composition includes a polysaccharide gum. The batch composition may optionally include a linear water soluble polymer having a molecular weight of at least one million Daltons.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: February 4, 2014
    Assignee: Corning Incorporated
    Inventor: Gregg William Crume
  • Publication number: 20140010858
    Abstract: The present invention is directed to polymeric compositions comprising a biodegradable copolymer that possesses shape-memory properties and implantable devices (e.g., drug-delivery stents) formed of materials (e.g., a coating) containing such compositions. The polymeric compositions can also contain at least one non-fouling moiety, at least additional biocompatible polymer, at least one biobeneficial material, at least one bioactive agent, or a combination thereof. The polymeric compositions are formulated to possess good mechanical, physical and biological properties. Moreover, implantable devices formed of materials comprising such compositions can be delivered to the treatment site in a conveniently compressed size and then can expand to dimensions appropriate for their medical functions.
    Type: Application
    Filed: May 28, 2013
    Publication date: January 9, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: John J. Stankus, O. Mikael Trollsas, Michael H. Ngo
  • Publication number: 20130071588
    Abstract: This invention relates to an aliphatic-aromatic copolyester characterised in that it has appreciable workability properties even when mixed with other polymers, appreciable toughness and high values for ultimate tensile strength and elastic modulus. This invention also relates to mixtures of the said copolyester with other polymers.
    Type: Application
    Filed: May 24, 2011
    Publication date: March 21, 2013
    Applicant: NOVAMONT S.p.A.
    Inventors: Catia Bastioli, Giampietro Borsotti, Luigi Capuzzi, Tiziana Milizia, Roberto Vallero
  • Publication number: 20130030089
    Abstract: Process for preparing a thermoplastic resin composition containing an aromatic polycarbonate resin which may include a thermoplastic resin other than the aromatic polycarbonate resin, a granular talc, and optionally a rubber polymer, a flame retardant or a fluorinated polyolefin. The granular talc has a particle size in which a proportion of a 500 ?m-mesh screen residue thereof is not less than 55% by weight.
    Type: Application
    Filed: October 1, 2012
    Publication date: January 31, 2013
    Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATION
    Inventor: MITSUBISHI ENGINEERING-PLASTICS CORPOR
  • Publication number: 20120252936
    Abstract: Binder for granular and/or fibrous substrates
    Type: Application
    Filed: April 2, 2012
    Publication date: October 4, 2012
    Applicant: BASF SE
    Inventors: Christian Krüger, Ulrich Schütze, Oliver Labisch
  • Publication number: 20120225978
    Abstract: Binder for granular and/or fibrous substrates
    Type: Application
    Filed: February 29, 2012
    Publication date: September 6, 2012
    Applicant: BASF SE
    Inventors: Christian Krüger, Alexander Centner, Oliver Labisch
  • Publication number: 20120220680
    Abstract: The present invention relates to biodegradable aliphatic-aromatic polyesters obtained from aliphatic dicarboxylic acids, polyfunctional aromatic acids and diols, wherein the polyfunctional aromatic acids are constituted by mixtures of acids of renewable and synthetic origin.
    Type: Application
    Filed: November 5, 2010
    Publication date: August 30, 2012
    Applicant: Novamont S.P.A.
    Inventors: Catia Bastioli, Giampietro Borsotti, Luigi Capuzzi, Gian Tomaso Masala, Tiziana Milizia, Roberto Vallero
  • Publication number: 20120220698
    Abstract: Biodegradable aliphatic/aromatic copolyester comprising: A) an acid component comprising repeating units of: 1) 49 to 63 mol % of an aromatic carboxylic acid; 2) 51 to 37 mol % of an carboxylic acid, at least 50% of which is brassylic acid; B) a diol component; said copolyester being disintegrated according to the Standard ISO 20200 in 90 days.
    Type: Application
    Filed: May 7, 2012
    Publication date: August 30, 2012
    Applicant: Novamont S.p.A.
    Inventors: Catia Bastioli, Tiziana Milizia, Giovanni Floridi, Andrea Scaffidi Lallaro, Giandomenico Cella, Maurizio Tosin
  • Publication number: 20120220687
    Abstract: Biodegradable aliphatic/aromatic copolyester comprising 49 to 66 mol % of an aromatic polyfunctional acid; 51 to 34 mol % of an aliphatic acid, at least 70% of which is sebacic acid; and butandiol; and blends containing such copolyester.
    Type: Application
    Filed: May 7, 2012
    Publication date: August 30, 2012
    Applicant: Novamont S.p.A.
    Inventors: Catia BASTIOLI, Tiziana MILIZIA, Giovanni FLORIDI, Andrea Scaffidi LALLARO, Giandomenico CELLA, Maurizio TOSIN
  • Patent number: 8247478
    Abstract: A thermoplastic resin composition of the present invention has high impact resistance, not lowering the weather resistance thereof, even though the amount of an impact resistance improver added thereto is small. The thermoplastic resin composition contains 100 parts by weight of (A) a thermoplastic resin and from 0.5 to 20 parts by weight of (B) a graft copolymer, wherein the graft copolymer (B) contains from 70% to 99% by weight of a crosslinked core (b2) prepared through polymerization of a monomer for the core (b2), containing 70% by weight or more of an acrylate, in the presence of from 0.5% to 20% by weight of a non-crosslinked seed (b1) having a weight-average molecular weight of 40,000 or less, and from 0.5% to 10% by weight of a shell (b3) prepared through polymerization of a monomer for the shell (b3) containing 50% by weight or more of a methacrylate, and the thermoplastic composition further contains from 0.01 to 3.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: August 21, 2012
    Assignee: Kaneka Corporation
    Inventor: Toru Terada
  • Publication number: 20120149810
    Abstract: The invention relates to an adhesive composition comprising hydrophilic silicone elastomers and hydrophobic silicone elastomers and optionally water absorbent material, wherein the ratio between the hydrophilic silicone elastomers and the hydrophobic silicone elastomers is from 95:5 to 5:95. The adhesive is suited for medical use due to its skin-friendliness. The invention further relates to a medical device comprising said adhesive composition.
    Type: Application
    Filed: February 22, 2012
    Publication date: June 14, 2012
    Inventor: Chaabane BOUGHERARA
  • Publication number: 20120115993
    Abstract: The present invention relates to a pulverulent adhesive for textile reinforcing inserts, which is dispersible in water, for the production of reinforced rubber products. The adhesive thereby comprises an at least partially capped, low-molecular isocyanate, a wetting agent, a binder and also possibly further additives.
    Type: Application
    Filed: November 7, 2011
    Publication date: May 10, 2012
    Applicant: EMS-PATENT AG
    Inventor: Andreas Kaplan
  • Patent number: 8124675
    Abstract: The invention relates to an adhesive composition comprising hydrophilic silicone elastomers and hydrophobic silicone elastomers and optionally water absorbent material, wherein the ratio between the hydrophilic silicone elastomers and the hydrophobic silicone elastomers is from 95:5 to 5:95. The adhesive is suited for medical use due to its skin-friendliness. The invention further relates to a medical device comprising said adhesive composition.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: February 28, 2012
    Assignee: Coloplast A/S
    Inventor: Chaabane Bougherara
  • Patent number: 7910641
    Abstract: The invention relates to pH modulated films and methods of their preparation. The film compositions include at least one component having a non-neutral pH when combined with water; and a pH modulated polymer system selected to reduce or prevent synerisis when combined with the non-neutral component in combination with aqueous media. The films demonstrate a non-self-aggregating uniform heterogeneity. Desirably, the films disintegrate in water and may be formed by a controlled drying process, extrusion process, or other process that maintains the required uniformity of the film.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: March 22, 2011
    Assignee: Monosol Rx, LLC
    Inventor: Garry L. Myers
  • Patent number: 7906569
    Abstract: The present invention provides a method for production of a molded article comprising a plant-derived composite material in which a plant-derived material is evenly dispersed and a plant-derived composite material molded article prepared therewith, and a method for production of a plant-derived composite material in which a plant-derived material is evenly dispersed and a plant-derived composite material prepared therewith. The present method for production of a molded article is a method for producing a molded article composed of a plant-derived composite material comprising a plant-derived material (e.g., a kenaf core) and a thermoplastic resin (e.g.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: March 15, 2011
    Assignee: Toyota Boshoku Kabushiki Kaisha
    Inventor: Masanori Hashiba
  • Publication number: 20110034847
    Abstract: The invention relates to an adhesive composition comprising hydrophilic silicone elastomers and hydrophobic silicone elastomers and optionally water absorbent material, wherein the ratio between the hydrophilic silicone elastomers and the hydrophobic silicone elastomers is from 95:5 to 5:95. The adhesive is suited for medical use due to its skin-friendliness. The invention further relates to a medical device comprising said adhesive composition.
    Type: Application
    Filed: October 15, 2010
    Publication date: February 10, 2011
    Inventor: Chaabane Bougherara
  • Patent number: 7829611
    Abstract: A curable binder composition comprising an emulsion polymer, an extender and a hydryoxyamide.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: November 9, 2010
    Assignee: Rohm and Haas Company
    Inventor: Michael D. Kelly
  • Patent number: 7819963
    Abstract: To provide a dental alginate impression material composition capable of solving a problem that the permeation rate of water with respect to the whole powder of an alginate impression material is slow at the time of use so that a kneading time is long and a sufficient operational time cannot be secured, and a problem that a kneaded material drops into a throat due to aging of the material at the time of taking an impression, the dental alginate impression material composition comprises 0.001 to 1% by weight of one or more kinds selected from oils mainly consisting of a fatty acid and an ester of alcohol, waxes mainly consisting of a fatty acid and an ester of glycerin, and a fatty acid ester; 0.01 to 10% by weight of a surfactant; and 0.01 to 10% by weight of one or more kinds of specific polysaccharides.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: October 26, 2010
    Assignee: GC Corporation
    Inventors: Hiroshi Kamohara, Hiroki Morita
  • Patent number: 7754791
    Abstract: A substantially non-elastic incompressible composition, which substantially does not quickly self-level under standard operating conditions, includes: a suspending agent which reacts substantially as a solid when subjected to forces below a critical force, and which becomes substantially flowable when subjected to forces above said critical force; ceramic microparticulates dispersed within the suspending agent; flexible-walled microparticulates dispersed within the suspending agent; and celled macroparticulates dispersed within the suspending agent. The composition provides an incident energy absorbing property. The incident energy may include sound energy, and the microparticulates and macroparticulates may convert some of the sound energy into heat, or may diffract the sound energy.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: July 13, 2010
    Assignee: Sereflex Group LLC
    Inventor: Joel Sereboff
  • Patent number: 7728055
    Abstract: An object of the present invention is to provide a new granulating process which can recover desired coagulated latex particles with a significantly excellent yield, and can suppress secondary coagulation under the condition having a higher temperature than a softening point of a polymer, without deteriorating the original quality of the polymer itself. A process for producing coagulated latex particles which can suppress the secondary coagulation under the condition having the broad temperature range, without deteriorating the original quality of the polymer itself by spraying or dropping a polymer latex into a gas-phase containing an inorganic salt and/or an acid, and a dispersant in an aerosol form, and dropping or feeding the droplets of the polymer latex into an aqueous phase containing a dispersant.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: June 1, 2010
    Assignee: Kaneka Corporation
    Inventor: Takashi Ueda
  • Publication number: 20100062232
    Abstract: The present invention concerns multilayer films comprising a plurality of layers, at least some of the layers comprise (i) cross-linked chitosan, alginate, chondroitin sulfate, or hyaluronic acid and (ii) particles or void spaces; wherein the layers are 20-260 nm in thickness. Also disclosed are multilayer films comprising at least two of: a layer comprising a first polymer; a layer comprising a second polymer; a layer comprising particles, wherein said particles comprise ceramic material, metallic species, or both; and, a layer comprising a combination of said first polymer and said particles; wherein said multilayer film is capable of displaying structural color. Also provided are methods for making and using the inventive multilayer films and compositions comprising the multilayer films.
    Type: Application
    Filed: December 14, 2007
    Publication date: March 11, 2010
    Applicant: Drexel University
    Inventors: Caroline L. Schauer, Matthew D. Cathell, Holly A. McIlwee
  • Publication number: 20090169759
    Abstract: The invention relates to a covering material for biomass and a method for the production thereof, in which at least two components (A) and (B) are mixed and subsequently applied onto the biomass, wherein component (A) comprises an oil of animal or vegetable origin and an alginate and component (B) comprises an aqueous latex dispersion and/or a protein dissolved in water.
    Type: Application
    Filed: January 25, 2007
    Publication date: July 2, 2009
    Inventors: Olaf Roeder, Volker Kirchhoff, Rainer Bartel, Wolfgang Schwarz, Edgar Remmele
  • Publication number: 20090030117
    Abstract: Embolic particles, as well as their methods of use and manufacture, are described.
    Type: Application
    Filed: September 23, 2008
    Publication date: January 29, 2009
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Janel L. Lanphere, Ernest J. St. Pierre, Greg Kapoglis, Thomas V. Casey, II
  • Publication number: 20090005472
    Abstract: Biodegradable aliphatic/aromatic copolyester comprising: A) an acid component comprising repeating units of: 1) 53 to 54 mol % of an aromatic carboxylic acid; 2) 47 to 36 mol % of an aliphatic acid at least 50% of which is azelaic acid ; B) a diol component selected from the group consisting of C3, C4 and C6 diols; said AAPE being disintegrated according to the Standard ISO 20200 in 90 days.
    Type: Application
    Filed: March 17, 2006
    Publication date: January 1, 2009
    Applicant: NOVAMONT S.P.A.
    Inventors: Catia Bastioli, Tiziana Milizia, Giovanni Floridi, Andrea Scaffidi Lallaro, Giandomenico Cella, Maurizio Tosin
  • Publication number: 20080318150
    Abstract: Paper compositions are provided that include an amine group-containing cationic polymeric material and a binder material. The paper compositions are particularly useful as receiver materials for images formed by electrophotographic imaging methods utilizing liquid developers. Also described are imaging methods that utilize the paper compositions as receiver materials and methods for manufacturing the paper.
    Type: Application
    Filed: November 8, 2005
    Publication date: December 25, 2008
    Inventors: Satish Agrawal, Clifford W. Parker
  • 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: 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: 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: 6767938
    Abstract: This invention relates to modeling doughs comprising algin, a sugar based polysaccharide resin, water and a synthetic resin latex. Additionally disclosed are surface active coating compositions for molded compositions of the algin/sugar-based polysaccharide based modeling dough. Hardening and enhanced drying of the modeling compound articles is accomplished by a spray coating application to a finished molded article by a surface active agent coating composition comprising a Boron containing salt and polyvinylpyrrolidone.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: July 27, 2004
    Assignee: Mattel, Inc.
    Inventor: Abimael Cordova
  • Publication number: 20040129173
    Abstract: A composition is provided consisting of an aqueous solution comprising at least one natural polysaccharide or a derivative thereof and at least one polymeric polyamino compound, the composition being capable of forming a film when applied onto a substrate. The invention also involves a method for temporary protection of a substrate surface from environmental influence using such composition.
    Type: Application
    Filed: March 1, 2004
    Publication date: July 8, 2004
    Inventor: Sigfrid Svensson
  • Publication number: 20030105192
    Abstract: Multi-layer reaction mixtures that includes exothermic generating particles having a water soluble coating encasing a portion of the particles, a volatile component and, optionally, a buffer, an aqueous solution or both. At least two layers of the reaction mixture contain exothermic generating particles and at least one layer of the reaction mixture contains a portion of the exothermic generating particles suspended in a gel that includes the water soluble coating. These multi-layer reaction mixtures are especially suited to generate heat in a controllable manner. In one such controlled reaction, the reaction components are mixed together and the reaction mixture increases in temperature to a Set Temperature within a predetermined time, and the mixture remains at the Set Temperature for a longer period of time. In this manner, volatile components can be controllably released to the surrounding environment.
    Type: Application
    Filed: January 13, 2003
    Publication date: June 5, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Yu-Jun Li, Mark Hsiang-Kuen Mao, Haruo Tamura, Hsin-Yuan Hu
  • Patent number: 6509390
    Abstract: The dental alginate impression material comprising a main paste containing an alginate, water and a filler as major components and a setting paste containing calcium sulfate and a liquid component as major components, the both pastes being to be mixed and set, wherein the main paste further contains 0.01 to 15% by weight of one or two or more polysaccharides selected from the group consisting of carrageenan, pullulane, curdlan, xanthane gum, gellan gum, pectin, konjak glucomannan, xyloglucan, guar gum, gum arabic, and locust bean gum, and the setting paste further contains 0.5 to 50% by weight of polybutene, is provided to thereby make the composition superior in preservability, and free from change of viscosity of the main paste with time, from liquid separation and deterioration of the setting paste, and from a delay in setting time due to the preservation.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: January 21, 2003
    Assignee: GC Corporation
    Inventors: Nobutaka Watanabe, Hiroshi Kamohara
  • Patent number: 6437038
    Abstract: A pressure sensitive adhesive composition suitable for medical purposes comprising a rubbery elastomeric base and one or more water soluble or water swellable hydrocolloids, the adhesive composition comprising a substantially homogeneous mixture of 15-60% of a butyl rubber, 15-60% of one or more tackifier resins, 1-10% of a tackifying liquid constituent, 20-60% of one or more hydrocolloids and 0-3% of a pigment shows very good properties as an adhesive for ostomy appliances.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: August 20, 2002
    Assignee: Coloplast
    Inventor: Fei Chen
  • Patent number: 6391939
    Abstract: The present invention relates to a biocompatible collagenous material which is non-toxic and biodegradable in less than one month, preferably in less than one week. This material comprises collagen and at least one hydrophilic macromolecular additive which is chemically non-reactive towards the collagen, with the collagen having at least partially lost its helical structure and being crosslinked. The invention also relates to a process for obtaining such a material. The collagenous material according to the invention is used, in particular, for preventing post-operative adhesions.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: May 21, 2002
    Assignee: Imedex Biomateriaux
    Inventors: Jean-Louis Tayot, Michel Tardy, Philippe Gravagna
  • Publication number: 20020058725
    Abstract: The dental alginate impression material comprising a main paste containing an alginate, water and a filler as major components and a setting paste containing calcium sulfate and a liquid component as major components, the both pastes being to be mixed and set, wherein the main paste further contains 0.01 to 15% by weight of one or two or more polysaccharides selected from the group consisting of carrageenan, pullulane, curdlan, xanthane gum, gellan gum, pectin, konjak glucomannan, xyloglucan, guar gum, gum arabic, and locust bean gum, and the setting paste further contains 0.5 to 50% by weight of polybutene, is provided to thereby make the composition superior in preservability, and free from change of viscosity of the main paste with time, from liquid separation and deterioration of the setting paste, and from a delay in setting time due to the preservation.
    Type: Application
    Filed: September 6, 2001
    Publication date: May 16, 2002
    Applicant: GC Corporation
    Inventors: Nobutaka Watanabe, Hiroshi Kamohara
  • Patent number: 6387978
    Abstract: Shaped-medical devices, e.g. stents, having improved mechanical properties and structural integrity are disclosed. The devices comprise shaped polymeric hydrogels which are both ionically and non-ionically crosslinked and which exhibit improved structural integrity after selective removal of the crosslinking ions. Process for making such devices are also disclosed wherein an ionically crosslinkable polymer is both ionically and non-ionically crosslinked to form a shaped medical device. When implanted in the body, selective in-vivo stripping of the crosslinking ions produces a softer, more flexible implant having improved structural integrity.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: May 14, 2002
    Assignee: Boston Scientific Corporation
    Inventors: John M. Ronan, Samuel A. Thompson
  • Patent number: 6368356
    Abstract: The invention provides a means of boosting the mechanical performance of shaped shaped medical devices comprising polymer hydrogels, such as stents, so that they may be more easily inserted into or removed from the body. In one aspect, the invention provides shaped medical devices having increased mechanical strength and comprising both ionic and covalent crosslinks. In another aspect, the invention provides a shaped medical device having a heterogeneous polymer composition and a variable dissolution or degradation rate along its length. The shaped medical devices according to the present invention retain their shape and stiffness during insertion into the body and can swell and soften inside the body to enhance patient comfort.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: April 9, 2002
    Assignee: SciMed Life Systems, Inc.
    Inventors: Sheng Ping Zhong, Arthur R. Madenjian, Douglas E. Godshall, John M. Ronan, Samuel A. Thompson
  • Patent number: 6358580
    Abstract: The invention relates to an optionally foamed sealing composition for preformed seals which can swell when treated with water. The invention also relates to a method for the production thereof out of natural rubber and/or elastomers with a matrix comprised of natural rubber/elastomer components and particle-shaped water absorbing material stored therein. The water absorbing material is a combination of (A) polysaccharide(s) selected from cellulose, starch, starch derivatives removed from grafted starch, amylose, amylopectin, dextran, pectin, inulin, chitin, xanthan, alginic acid, alginates, carrageenan, pustulan, callose, laminarin, guluronic acid, pullulan, lichenin or mixtures of the same with (B) a highly water absorbent synthetic polymer selected from polymers based on (meth)acrylate, poly(meth)acrylic acid and the salts thereof, polyacrylamide, polyalcohols or copolymers of said synthetic polymers.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: March 19, 2002
    Assignees: Datwyker A.G. Gummi & Kunststoffe
    Inventors: Thomas Mang, Günter Preiser, Jürgen Dahm