After Coating Patents (Class 427/224)
  • Patent number: 10125535
    Abstract: The invention relates to a multiple glass pane (6) comprising two outer glass panes (4, 4?), at least one center glass pane (5), and a spacer (1), wherein the spacer (1) comprises a hollow space (2, 2?) for receiving a desiccant (3) and a receiving profile (7) for each center glass pane (5), and the hollow space (2, 2?) of the spacer (1) is filled with a desiccant (3).
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: November 13, 2018
    Assignee: Lisec Austria GMBH
    Inventor: Hans Rudolf Máder
  • Patent number: 9598756
    Abstract: A method for producing a hot dip plated steel sheet, the method controlling a coating weight by injecting a gas toward a surface of a steel sheet from a time when the steel sheet continuously immersed into a plating bath is pulled up from the plating bath to a time when plating metal adhered onto the surface of the steel sheet is solidified, the method includes: setting an oxygen concentration of a bath surface of the plating bath to be more than or equal to 0.05 vol % and less than or equal to 21 vol % when the gas is injected toward the surface of the steel sheet; and setting an oxygen concentration in a space of an end of the steel sheet at a position where the gas collides with the steel sheet pulled up from the plating bath to be more than or equal to 0.05 vol % and less than or equal to 3 vol % when the gas is injected toward the surface of the steel sheet.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: March 21, 2017
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Tooru Oohashi, Masato Kageyama, Satoshi Uchida, Katsuhiro Hamaguchi
  • Patent number: 9296621
    Abstract: A sol-flame method includes 1) forming a sol-gel precursor solution of a source of a dopant; 2) coating a nanostructure or a thin film with the sol-gel precursor solution; and 3) subjecting the coated nanostructure or the coated thin film to flame annealing to form a doped nanostructure or a doped thin film.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: March 29, 2016
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Yunzhe Feng, Xiaolin Zheng, In Sun Cho
  • Patent number: 9221432
    Abstract: A snow brush, comprising flexible sheets secured by a first edge to a handle, all edges of the flexible sheets other than the first edge providing corresponding continuous brushing edges, wherein the flexible sheets are sheets of closed cells foams, and a method for fabricating the now brush, comprising selecting flexible sheets, securing a first edge of the flexible sheets to a handle, wherein selecting flexible sheets comprises selecting a number of sheets, and a thickness, a density and a free length of each sheet.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: December 29, 2015
    Assignee: GARANT GP
    Inventor: Carl Blouin
  • Publication number: 20150024155
    Abstract: A method of manufacturing an article comprises providing a ring for an etch reactor. Ion assisted deposition (IAD) is then performed to deposit a protective layer on at least one surface of the ring, wherein the protective layer is a plasma resistant rare earth oxide film having a thickness of less than 300 ?m and an average surface roughness of less than 6 micro-inches.
    Type: Application
    Filed: September 19, 2013
    Publication date: January 22, 2015
    Applicant: Applied Materials, Inc.
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Vahid Firouzdor, Ying Zhang
  • Publication number: 20140294721
    Abstract: A sol-flame method includes 1) forming a sol-gel precursor solution of a source of a dopant; 2) coating a nanostructure or a thin film with the sol-gel precursor solution; and 3) subjecting the coated nanostructure or the coated thin film to flame annealing to form a doped nanostructure or a doped thin film.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Inventors: Yunzhe Feng, Xiaolin Zheng, In Sun Cho
  • Patent number: 8815340
    Abstract: The subject of the invention is a heat treatment process by flame treatment of at least one thin film deposited on a glass substrate (1) running in the path of at least one flame treatment device comprising at least one burner (2), said treatment being able to increase the degree of crystallization of said at least one thin film and/or to increase the size of the crystallites in said at least one thin film, said process being characterized in that the maximum transient bending “b” is less than 150 mm and respects the following condition: b?0.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: August 26, 2014
    Assignee: Saint-Gobain Glass France
    Inventors: Guillaume Bignon, Nicolas Nadaud, Binh Tran, Se-Jong Kim
  • Publication number: 20140017457
    Abstract: Provided herein are methods and materials for the production of hydrophobic coatings, which may be thermally treated to produce binary hydrophobic-hydrophilic regions.
    Type: Application
    Filed: July 15, 2013
    Publication date: January 16, 2014
    Applicant: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Constantine M. Megaridis, Thomas M. Schutzius, Ilker S. Bayer
  • Patent number: 8455571
    Abstract: A flame-retardant particle includes: a particle containing a compound having a structure represented by formula (1); and a coating particle that covers at least a part of a surface of the particle: -A(—O—CO—O—Ar)m??(1) wherein A represents a substituted or unsubstituted aromatic group; Ar represents a substituted or unsubstituted phenyl group; and m represents an integer of 1 to 3.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: June 4, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masato Mikami, Masayuki Okoshi, Kazuya Yamanoi
  • Patent number: 8329251
    Abstract: A method for manufacturing a dye sensitized nanocrystal film having the steps of exposing a tin oxide layer on a surface of a substrate to a flame for a time sufficient to form a layer of mesoporous, crystalline titanium oxide on the fluorinated tin oxide layer followed by sintering the substrate at a temperature of from about 300 to about 500° C. The flame contains a fuel gas, such as ethylene and oxygen and titanium organometallic. The concentration of titanium organometallic is from about 10 to about 2000 ppm. During the flame exposure step, the substrate is rotated about a central axis at a speed of from about 100 to about 600 RPM, and the flame is kept at a constant distance from the surface of the substrate. The temperature of the substrate is maintained at a temperature of less than 200° C. via the rotation and jets of gas.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: December 11, 2012
    Assignee: University of Southern California
    Inventors: Hai Wang, Denis J. Phares, Erik Tolmachoff
  • Publication number: 20120046157
    Abstract: A method for strengthening an extruded catalyst honeycomb filter body, including: contacting an extruded catalyst honeycomb filter body and a siliceous formulation including at least one siliceous source comprising a silicone emulsion, a silica sol, or a combination thereof; drying the contacted filter body; and firing the dried contacted filter body to provide the filter body. Also disclosed are zeolite-based honeycomb filter articles, including a matrix of walls of: a primary phase material homogeneously distributed throughout the walls, as defined herein.
    Type: Application
    Filed: August 23, 2010
    Publication date: February 23, 2012
    Inventors: Yanxia Lu, Steven Bolaji Ogunwumi, Jianhua Weng
  • Publication number: 20110311732
    Abstract: The subject of the invention is a heat treatment process by flame treatment of at least one thin film deposited on a glass substrate (1) running in the path of at least one flame treatment device comprising at least one burner (2), said treatment being able to increase the degree of crystallization of said at least one thin film and/or to increase the size of the crystallites in said at least one thin film, said process being characterized in that the maximum transient bending “b” is less than 150 mm and respects the following condition: b?0.
    Type: Application
    Filed: March 10, 2010
    Publication date: December 22, 2011
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Guillaume Bignon, Nicolas Nadaud, Binh Tran, Se-Jong Kim
  • Publication number: 20110236703
    Abstract: Provided is a method of preparing a film including the steps of providing a polymer substrate, depositing a metal layer on the polymer substrate in a metallization chamber, removing the metallized film from the metallization chamber, and applying a topcoat to said metal layer within 1 week of depositing the metal layer on the polymer substrate. A film produced by such a method exhibits improved barrier properties, such as improved water-vapor transmission rates.
    Type: Application
    Filed: September 9, 2009
    Publication date: September 29, 2011
    Inventor: Dennis E. McGee
  • Publication number: 20110159205
    Abstract: A coated string for a stringed device which includes a coating applied to the surface of the string. The coating includes a base layer bonded to the surface of the string and an at least partially transparent low-friction top coat applied to the base layer. The base layer includes heat activated pigments that change color when heated above a color shifting temperature. In one embodiment, the color of the pigment in one area contrasts with the color of the pigment in an adjacent area without otherwise affecting the low-friction surface of the coating. The areas of different color created in locations along the length of the low-friction coated string.
    Type: Application
    Filed: March 4, 2011
    Publication date: June 30, 2011
    Applicant: INNOVATECH, LLC
    Inventor: Bruce Nesbitt
  • Publication number: 20100311614
    Abstract: An immobilizing device for biological material comprises a rigid support (12) carrying a substrate layer (20, 20?) of polymer having biological immobilizing properties, e.g. for amino and nucleic acids. Substantially solid ultra-thin substrate layers (20?) having a thickness less than about 5 micron, preferably between about 0.1 and 0.5 micron, and microporous, ultra-thin substrate layers (20?) having a thickness less than about 5 micron, preferably less than 3 micron, 2 or 1 micron are shown, which may be segmented by isolating moats M. The substrate layer is on a microscope slide (302), round disc (122), bio-cassette, at the bottom of a well of a multiwell plate, and as a coating inside a tube. Fluorescence or luminescence intensity and geometric calibration spots (420) are shown. Reading is enhanced by the intensity calibration spots (420) to enable normalization of readings under uneven illumination conditions, as when reading by dark field, side illumination mode.
    Type: Application
    Filed: June 15, 2010
    Publication date: December 9, 2010
    Applicant: AVANTRA BIOSCIENCES CORPORATION
    Inventors: Jean I. Montagu, Roger Dowd, David Root
  • Patent number: 7744955
    Abstract: A method of making a coated article including a transparent conductive oxide (TCO) film supported by a glass substrate is provided. In certain example embodiments, the coated article including the TCO film on the glass substrate is thermally tempered in a tempering furnace. In certain example embodiments, during tempering flame(s) are provided proximate the exposed surface of the TCO in order to burn off excess oxygen near the TCO surface thereby preventing or reducing oxidation of the TCO during the tempering process. A coated article, that is thermally tempered, made by such a product is also provided.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: June 29, 2010
    Assignee: Guardian Industries Corp.
    Inventors: Richard Blacker, Cory Richardson, Alexey Krasnov
  • Publication number: 20100143724
    Abstract: Corrosion resistant metallized films and methods of making the same are disclosed.
    Type: Application
    Filed: March 24, 2006
    Publication date: June 10, 2010
    Inventor: Michael A. Johnson
  • Publication number: 20090064987
    Abstract: A grate apparatus configured to support a cooking utensil over a flame of a heat source on a cooktop stove. The grate apparatus includes an outer portion with a support surface configured to support the cooking utensil. The support surface includes a first coating. A plurality of protrusions is configured to support the cooking utensil. A portion of the plurality of protrusions is configured to be disposed closer to the flame of the heat source than is an entirety of the support surface. The plurality of protrusions includes a second coating different than the first coating.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 12, 2009
    Inventor: Paul Bryan Cadima
  • Publication number: 20090011254
    Abstract: Provided is a release film, including a plastic film substrate, a surface modification layer formed on a single surface or both surfaces of the plastic film substrate by radiating a flame of a fuel gas including an organosilicon compound onto the single surface or both surfaces, and a silicone release layer composed of a cured product of a curable silicone composition, in which the silicone release layer is provided on top of the surface modification layer. The release film exhibits excellent adhesion between the silicone release layer and the plastic film substrate.
    Type: Application
    Filed: July 3, 2008
    Publication date: January 8, 2009
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kenji Yamamoto, Tsutomu Nakajima, Masahiko Ogawa
  • Patent number: 7455883
    Abstract: A substrate is coated with a layer(s) or coating(s) that includes, for example, amorphous carbon in a form of diamond-like carbon (DLC). The DLC is then subjected to flame pyrolysis in order to cause the contact angle ? thereof to decrease.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: November 25, 2008
    Assignee: Guardian Industries Corp.
    Inventors: Rudolph Hugo Petrmichl, Joseph M. Bienkiewicz, Scott V. Thomsen
  • Patent number: 7410675
    Abstract: The invention relates to the use of a polyolefinic film, with at least one layer, which is made from polyolefinic polymers, whereby said polyolefinic film comprises a bonding layer as outer layer. Said bonding layer contains at least 50 wt. % based on the weight of the layer of a maleic anhydride modified polyolefin. The film is used for printing, metallising or coating.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: August 12, 2008
    Assignee: Trespaphan GmbH
    Inventors: Detlef Busch, Joachim Jung
  • Patent number: 7399503
    Abstract: Process for producing a multilayer coating, in which a first coating (A) has applied to it a subsequent coating material (B) which is then cured involves selecting and/or modifying the first coating (A) and/or selecting the coating material (B) in such a way that the quotient (Q) formed from the surface energy of the second coating (B) and the surface energy of the first coating (A) is less than or equal to 1, and its use.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: July 15, 2008
    Assignee: BASF Coatings AG
    Inventors: Klaus Holzapfel, Peter Mayenfels, Hubert Baumgart, Theodora Dirking
  • Publication number: 20080145653
    Abstract: A unique primer emulsion chemistry yields excellent adhesion of polyethylene terephthalate (PET)resin to clay coated paperboard (with high starch content) at reduced coatweights of the primer emulsion and the resin as compared to other primer and tie-resin chemistries currently employed for moisture barrier applications. A primer used for adhesion enhancement is an ammonium catalyzed, self-crosslinking copolymer of ethylene-vinyl acetate with N-methylol acryl amide functional groups attached to a polymer backbone. Use of the primer in amounts up to about 0.5 pounds per ream permits PET coatweights of as low as 10-12 lbs per ream and lower for some applications.
    Type: Application
    Filed: August 15, 2007
    Publication date: June 19, 2008
    Inventors: Ladislav Bednarik, Vivek Rohatgi, David V. Reed
  • Publication number: 20080008829
    Abstract: This invention relates to a method of making a coated article for use in insulating glass (IG) window units, vehicle windows, or the like. The coated article typically includes a low-E coated article, including a low-E (low emissivity) coating supported by a glass substrate. In certain example embodiments, rapid heating (not sufficient for tempering or heat bending) of the coated article is utilized in order to reduce the emissivity and/or sheet resistance of the coated article without significantly damaging the infrared (IR) reflecting layer(s) of the coating, thereby activating the coated article. The glass of the coated article does not become too hot during such rapid heating.
    Type: Application
    Filed: July 7, 2006
    Publication date: January 10, 2008
    Applicants: C.R.V.C.
    Inventors: Richard Blacker, Gerald Worley, Bernd Disteldorf
  • Patent number: 7282238
    Abstract: A coherent material is formed on a substrate (10) by providing a precursor suspension (14) in which particulates are suspended in a carrier fluid, and directing the precursor suspension (14) at the substrate (10) from a first source (12). Generally contemporaneously with application of the deposited precursor suspension (14) to the surface, hot gases, e.g. hot gases produced by a flame (16), are directed at the substrate (10) from a remote second source (18) to fuse the particulates into the coherent material.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: October 16, 2007
    Assignee: nGimat Co.
    Inventors: Subramaniam Shanmugham, Andrew Tye Hunt, Girish Deshpande, Tzyy-Jiuan Jan Hwang, Erika Moore, Yongdong Jiang
  • Patent number: 6939576
    Abstract: Coatings, particularly thin films, of polymeric material are produced in accordance with the invention by applying a finely divided aerosol of polymer solution to a substrate and substantially simultaneously applying an energy source to the applied solution to apply the solution. In cases where the polymer is cross-linking, the energy source assists in cross-linking of the polymer. The preferred energy source is a flame that may optionally or desirably deposit material along with the polymer spray. One particular aspect of the invention is directed to production of polyimide films. In accordance with another aspect of the invention, the co-deposition process is used to provide thin polysiloxane coatings on glass and other substrates.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: September 6, 2005
    Assignee: nGimat Co.
    Inventors: Girish Deshpande, Andrew Tye Hunt, Subramaniam Shanmugham, Eric J. Yurtkuran, Todd Polley, Miodrag Oljara, Tzyy-Jiuan Jan Hwang, Aimee Poda, George Neuman
  • Patent number: 6753088
    Abstract: A method for at least locally providing an article coated with an organic coating with a layer of readily deformable sealing material (so-called compound), which involves a layer of an intermediate of the compound being applied to the coating layer, after which the article is temporarily kept at an elevated temperature in order to form the compound from its intermediate, wherein the coating layer of the article comprises a polyethylene terephthalate and the compound is chosen from the group consisting of urethanes, amides, mixtures thereof and heteropolymers thereof, and in that the free surface of the coating layer prior to the application of the intermediate of the compound, at least at the location where this intermediate is applied, is briefly subjected to a processing operation from the group of equivalent processing operations comprising a flame treatment in the course of which the coating layer does not melt.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: June 22, 2004
    Assignee: Corus Technology BV
    Inventors: Renauld Robert Belvroy, Jan Willem Van Veenen
  • Publication number: 20040110012
    Abstract: A process or preparing a coating composition which involves forming a hydrolysis product is described.
    Type: Application
    Filed: September 29, 2003
    Publication date: June 10, 2004
    Inventors: Peter Bier, Peter Capellen
  • Publication number: 20030175421
    Abstract: A process of cleaning a component following a forming operation that has left a residue on the component surface. The process comprises a thermal treatment during which the surface of the component is subjected to a controlled open flame, preferably in the presence of a limited amount of excess oxygen. Residues can be removed by the open flame to the extent that adhesion of a coating to the component surface can be greatly enhanced. Surface residue levels prior to the thermal treatment can be reduced by the use of lubricants prepared by diluting with de-ionized water or reverse osmosis water, thereby further increasing the likelihood of a residue-free surface having optimal adhesion properties. Under some circumstances, residue levels can be sufficiently reduced with the use of lubricants diluted with de-ionized or reverse osmosis water such that the thermal treatment can be omitted.
    Type: Application
    Filed: December 13, 2002
    Publication date: September 18, 2003
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventors: Kurt F. O'Connor, Larry William Houk, Derek S. Ferraro, Mary A. Beam, Larry G. Hyman, Henry M. Sanftleben, B. Samuel Platt
  • Patent number: 6503989
    Abstract: A monolayer polyolefin-based printable article includes 0.1 to 5% by weight of at least one polyaminoalkylene, and is characterized in that it has been treated by means of an oxidative surface treatment, such as a corona treatment. A process for the manufacture of a polyolefin-based printable article, according to which at least one surface region of the article, including at least one polyolefin and from 0.1 to 5% by weight of at least one polyaminoalkylene, involves subjecting the region to an oxidative surface treatment. A printing process, according to which a polyolefin-based article, including from 0.1 to 5% by weight of at least one polyaminoalkylene and treated by means of an oxidative surface treatment, utilizes an electrophotography technique to print on the article.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: January 7, 2003
    Assignee: Solvay (Societe Anonyme)
    Inventor: Zdenek Hruska
  • Patent number: 6482473
    Abstract: A composition for increasing the dissipation of heat from one portion of a surface when heat is applied to another portion of the same surface. The preferred composition is a gel or paste with high water content and a thickener of a mineral clay in a colloidal suspension. The invention finds particular use in welding and soldering processes which are carried out adjacent heat sensitive materials.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: November 19, 2002
    Inventors: Kenneth R. Hallo, John L. Sheld
  • Patent number: 6419992
    Abstract: A zinc coating directly covers a bare ferrous base of parking meter housing parts. A non-epoxy thermosetting electrically insulating organic non-epoxy powder coating directly covers the zinc coating. The organic coating is directly applied to the zinc coating by electrostatically charging the powder and parts with opposite d.c. voltage polarities and by heating the powder so it adheres to and covers the zinc coating. Alternatively, the base is zinc, directly covered by the organic powder coating.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: July 16, 2002
    Inventor: Scott Jay Lewin
  • Publication number: 20020018860
    Abstract: A process for modifying the surface of a substrate containing a polymeric material by contacting the surface with the modifying agent to bond the modifying agent to the surface the process comprising providing a solution of the modifying agent in a solvent and subjecting the solution of the modifying agent to a zone of elevated temperature to vaporize the solvent and provide diffuse contact between the modifying agent and the surface of the substrate.
    Type: Application
    Filed: February 12, 2001
    Publication date: February 14, 2002
    Inventors: Con Filippou, Wojciech S. Gutowski, David Proctor, Mark Spicer
  • Patent number: 6311521
    Abstract: A raw material mixture, which has a glass composition containing a salt or an oxide of a flame reaction metal, is heated, and an intermediate base material, in which the salt of the flame reaction metal, or the like, has been thermally decomposed and which is in a temporary sintered state or a fused glass state, is thereby formed. The intermediate base material is ground, and a ground material is thereby obtained. The ground material is mixed together with a liquid and, optionally, a binder, and a viscous flame reaction material is thereby formed. The viscous flame reaction material is supported on a substrate and heated to a temperature, which is not lower than a vitrification melting temperature of the viscous flame reaction material. In this manner, the flame reaction material is fusion bonded to the substrate. Generation of a thermal decomposition gas in the baking step is thus restricted, and the carrying of the flame reaction material on the substrate is carried out appropriately.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: November 6, 2001
    Assignee: Tokai Corporation
    Inventors: Hideo Mifune, Masato Seki
  • Patent number: 6294222
    Abstract: A method of attaching a substantially uniform distribution of particulates to individual exposed surfaces of a matrix of fibrous material. The method includes the following steps: 1) electrically charging a matrix of fibrous material having individual exposed surfaces to create a substantially uniform distribution of charged sites at the exposed surfaces; 2) applying particulates to the charged matrix of fibrous material so that at least some particulates adhere at the charged sites; and 3) attaching particulates adhering to the fibrous material at charged sites by substantially non-transient bonding.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: September 25, 2001
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Bernard Cohen, Judith Katherine Faass, Lamar Heath Gipson, Lee Kirby Jameson
  • Patent number: 6225361
    Abstract: The invention provides expanded hollow micro sphere composite beads and a process for producing the beads. According to the invention, finely divided calcium carbonate can be uniformly deposited on expanded hollow thermoplastic polymer micro spheres by a simple procedure without incurring breakage of the expanded micro spheres so that the scattering of beads can be effectively inhibited. The preferred production process comprises admixing expanded hollow thermoplastic polymer micro spheres (A), with colloidal calcium carbonate (B) which has been surface-activated with a surface-treating agent or dispersing agent, e.g. a fatty acid series or polymer acid series compound. The admixing can be typically effected by dry-blending, preferably at a temperature of about 50-100° C.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: May 1, 2001
    Assignees: Akzo Nobel N.V., Japan Fillite Co., Ltd.
    Inventor: Takayuki Nakajima
  • Patent number: 6168834
    Abstract: A method for increasing the dissipation of heat from one portion of a surface when heat is applied to another portion of the same surface. The preferred composition is a gel or paste with high water content and a thickener of a mineral clay in a colloidal suspension. The invention finds particular use in welding and soldering processes which are carried out adjacent heat sensitive materials.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: January 2, 2001
    Inventors: Kenneth R. Hallo, John L. Shcld
  • Patent number: 6162487
    Abstract: A medical device of metallic or non-metallic material coated with a combination of antiseptics and a method for coating such an implant with a combination of antiseptics is provided. Different combinations of antiseptics can be used for different types of medical devices depending on the spectrum of organisms that cause the infections related to each device. The combination of different antiseptics has a synergistic effect against certain bacteria and fungi. The combination of antiseptic can be applied to the surface of a metallic device by dissolving the combination of antiseptics and a polymeric sticking agent in an acid solution to form an antiseptic solution, and applying the antiseptic solution, in an effective concentration to inhibit the growth of bacterial and fungal organisms, to at least a portion of the surfaces of the medical device.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: December 19, 2000
    Assignee: Baylor College of Medicine
    Inventor: Rabih O. Darouiche
  • Patent number: 6159531
    Abstract: A multi-step method for surface modification of a medical device having at least one surface exposed to tissue and/or blood. The steps comprise a low temperature plasma treatment of the said surface to provide a plasma deposited layer having functional groups. A chemical treatment of the plasma deposited layer using multifunctional linkers establishes covalent bonds with the plasma deposited layer. A bioactive/biocompatible agent react with the multifunctional linkers so that molecules thereof are covalently bound to said surface.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: December 12, 2000
    Assignee: CardioVasc, Inc.
    Inventors: Mai Huong Dang, Phillip Chiu
  • Patent number: 6143354
    Abstract: A method of modifying the surface characteristics of a substrate, particularly a polymeric material. The method involves grafting ethylenically unsaturated monomers and attaching biomolecules, such as heparin, to the surface of the substrate, such as a polymeric material, in one step using an oxidizing metal, such as ceric ions.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: November 7, 2000
    Assignee: Medtronic Inc.
    Inventors: Edouard Koulik, Michel Verhoeven, Patrick Cahalan, Linda Cahalan
  • Patent number: 6139585
    Abstract: A bioactive bone mineral carbonated nano-crystalline apatite is chemically bonded to a variety of substrates, including implantable prostheses. This coating is applied uniformly to substrate surfaces of varying geometry and surface textures. It is firmly secured to the substrate and encourages rapid and effective bone ingrowth. The coating is applied by immersing the substrate in an aqueous solution containing calcium, phosphate and carbonate ions. Other ions, such as sodium, potassium, magnesium, chloride, sulfate, and silicate, may optionally be present in the solution. The solution is exposed in a controlled environment when it reacts with the substrate to form the coating.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: October 31, 2000
    Assignee: Depuy Orthopaedics, Inc.
    Inventor: Panjian Li
  • Patent number: 6136891
    Abstract: Composite particles having a core consisting of an organic polymer and a coating including at least one aluminum, silicon, zirconium and/or transition metal oxide and/or hydroxide, and optionally containing calcium carbonate, as well as methods for preparing same, are disclosed. The use of said composite particles for preparing hollow particles with a shell of the same kind as the above-mentioned coating is also disclosed. Finally, the use of said hollow composite particles as fillers or additives in plastics and elastomers is disclosed.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: October 24, 2000
    Assignee: Rhodia Chimie
    Inventors: Thierry Chopin, Dominique Dupuis, Dominique Labarre, Gilles Mur
  • Patent number: 6131580
    Abstract: Template-imprinted structures 10 are provided having at least one template-imprinted surface 12 defining indentations 14 that are capable of specifically binding cells and/or molecules, such as macromolecules including proteins, peptides and nucleic acids. Presently preferred embodiments of the template-imprinted structures include medical prostheses, such as artificial joints and heart valves, having surface indentations that specifically bind proteins and/or cells that enhance the biocompatibility of the prosthesis, thereby making it less likely that the prosthesis will be rejected by the body. Methods are also provided for making the template-imprinted structures of the present invention.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: October 17, 2000
    Assignee: The University of Washington
    Inventors: Buddy D. Ratner, Huaiqiu Shi
  • Patent number: 6120847
    Abstract: A method is provided for eliminating surface imperfections on a medical device having a drug release coating including a therapeutic substance in a polymeric carrier disposed on at least a portion of the medical device. The medical device is preferably a stent including wire-like members interconnected to form struts with open interstices therebetween. A therapeutic substance incorporate into a polymeric carrier is disposed on the surface of the stent through which process imperfections including polymeric fibers, polymeric particles or other polymeric surface aberrations or imperfections are formed. This imperfections are eliminated by contacting the polymeric coating with a vaporized solvent for a specified period of time.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: September 19, 2000
    Assignee: SciMed Life Systems, Inc.
    Inventors: Dachuan Yang, Carmen Jacob, Lixiao Wang
  • Patent number: 6120536
    Abstract: A coating and method for implantable open lattice metallic stent prostheses are disclosed. The coating includes a relatively thin layer of biostable elastomeric material containing an amount of biologically active material, particularly heparin, dispersed in the coating in combination with a non-thrombogenic surface. In one embodiment, the surface is provided with sites of high electronegativity species by coating with fluorosilicone which aid in controlling elution, particularly the initial release rate, and reduced thrombogenic activity. Other non-thrombogenic outer layers for heparin such as covalently bound polyethylene glycol (PEG) are also disclosed.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: September 19, 2000
    Assignee: Schneider (USA) Inc.
    Inventors: Ni Ding, Michael N. Helmus
  • Patent number: 6113636
    Abstract: Approaches are described for depositing antimicrobial elemental metal and/or metal compounds within a medical article. The medical article generally includes biocompatible material that can contact bodily fluids. In particular, antimicrobial elemental metal can be deposited on and in a biocompatible material such as tissue. Chemical, photochemical and electrochemical processes for depositing elemental metal are described. In addition, an antimicrobial metal compound can be deposited by precipitation of the compound from a solution of metal cation. Antimicrobial metal deposits may reduce the incidence of infection associated with contacting a recipient medical patient with the biocompatible material.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: September 5, 2000
    Assignee: St. Jude Medical, Inc.
    Inventor: Matthew F. Ogle
  • Patent number: 6110204
    Abstract: The present invention relates to an implant for use in the human body, an implant substrate being coated with a material which contains chemical compounds between one or more metals (M) of group IV A of the periodic system, nitrogen (N) and oxygen (O), 2 to 45% of the volume in the coating material being formed by voids whose sizes range from (0.4 nm).sup.3 to (50 nm).sup.3, and the remaining volume having a composition of a metal of group IV A of the periodic system to nitrogen to oxygen of 1:(0.1 to 1.7):(0.1 to 1.7), a material having formula MN.sub.x O.sub.y (wherein x,y=0.1-1.7) resulting.The invention also relates to the use of this implant for implantation into the animal or human body.
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: August 29, 2000
    Assignee: Huber & Schussler
    Inventors: Miladin Lazarov, Isabella Mayer
  • Patent number: 6099852
    Abstract: This invention provide silicone-based, biomedical devices that exhibit improved wettability as well as biocompatability through the use of functional silane agents. More specifically, the invention provides devices at least one surface of which has a functional silane coupling agent and hydrophilic polymer.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: August 8, 2000
    Assignee: Johnson & Johnson Vision Products, Inc.
    Inventor: James J. Jen
  • Patent number: 6099563
    Abstract: Disclosed is a method of enhancing the biocompatibility of a substrate by providing the substrate with a continuous bio-active surface coating. This method includes applying to the substrate a first coating which includes an aqueous dispersion or emulsion of a polymer containing an organic acid functional group and an excess of a polyfunctional cross-linking agent which is reactive with the organic acid groups of the polymer. A continuous bio-active surface coating is then formed over the dried first coating by applying thereover a bio-active agent containing an organic acid functional group or metal salt thereof. The first and second coatings are then dried to covalently bond the organic acid functional groups of the bio-active agent to the polymer through the excess unreacted polyfunctional cross-linking agent.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: August 8, 2000
    Assignee: Boston Scientific Corporation
    Inventor: Sheng-Ping Zhong
  • Patent number: 6090995
    Abstract: Synthetic surfaces such as surfaces of implantable prosthetic devices are modified to enhance their ability to support the growth, migration and attachment of epithelial cells. A surface modifier composition is covalently bound to the synthetic surface, and an epithelial cell-supporting coating is applied to the modified surface. The surface modifier composition may also include an epithelial cell-supporting material. The invention is particularly suited towards the modification of synthetic epikeratophakia lenses.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: July 18, 2000
    Assignee: Surmodics, Inc.
    Inventors: Cary Reich, Jeffrey Forsberg, Harold Levy, Jean Toner-Webb