Coating Or Impregnation Absorbs Sound Patents (Class 442/120)
  • Publication number: 20140349534
    Abstract: The present invention relates to a multifunctional structure having a load-bearing flexible porous support and a plurality of functionalizing fillers which are embedded in a resin matrix applied on the support such that at least a part of the resin penetrates into the fibrous support, however maintaining a portion of the thickness of the fibrous support not impregnated with the resin. The invention also relates to a method for manufacturing a structure according to the invention.
    Type: Application
    Filed: January 14, 2013
    Publication date: November 27, 2014
    Inventor: Franco Bologna
  • Publication number: 20140273687
    Abstract: Disclosed is a building board construction that provides enhanced acoustical properties. In one possible embodiment, the board is a gypsum board with opposing facing sheets and an intermediate set gypsum core. An opened celled polymeric sheet is formed within the gypsum core and gives the resulting board enhanced sound absorption. In an alternative embodiment, individual pieces of polymeric foam are used in stead of the polymeric sheet. Also disclosed are various manufacturing methods whereby boards with enhanced acoustical properties can be formed in an continuous process. The various components of the present disclosure, and the manner in which they interrelate, are described in greater detail hereinafter.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Thomas J. Garvey, Christopher K. Athari, Pamela Shinkoda
  • Publication number: 20140054106
    Abstract: A first aspect of the present application relates to a method for producing sound-damping, sound-absorbing and/or insulating molded material. More specifically, the method according to the invention relates to a method for producing said molded materials, wherein the fibrous material is wound around at least two carriers and subsequently the wound blank thus obtained remains on the carriers so as to be permanently solidified in order to obtain the molded material according to the invention. A further aspect of the present application concerns the molded material thus obtained, in particular in the form of molded mats or molded objects. Said molded material can be used, in particular, in mufflers. Finally, the following application concerns a device for producing said molded materials from fibrous material.
    Type: Application
    Filed: February 23, 2012
    Publication date: February 27, 2014
    Applicant: DBW HOLDING GMBH
    Inventors: Thomas Bauer, Karl-Christian Regent, Martin Schwerdtfeger
  • Publication number: 20130171898
    Abstract: A vibration-damping sheet to be bonded to a metal adherend includes a resin layer and a constraining layer laminated on the resin layer. The resin layer contains a pressure-sensitive adhesive resin, a metal which has a higher ionization tendency than that of the metal adherend, and an electrically-conductive carbon.
    Type: Application
    Filed: August 22, 2011
    Publication date: July 4, 2013
    Inventor: Yasuhiko Kawaguchi
  • Publication number: 20100003466
    Abstract: The invention relates to a sound-proofing component, particularly for absorbing noise in motor vehicles, comprising a first layer which is made of a nonwoven material, is embodied in a planar manner similar to a mat, and is provided with two opposite surfaces. A thin spray coating made of a duroplast, such as polyurethane and/or thermoplastic materials, is disposed on one of the outer surfaces of the nonwoven fabric. Also disclosed is a method for producing said component.
    Type: Application
    Filed: November 10, 2006
    Publication date: January 7, 2010
    Inventor: Olaf Hessler
  • Publication number: 20090286439
    Abstract: The invention relates to a convertible top cloth, including an outer top cloth, an inner roof lining, an insulating layer which is arranged between the outer top cloth and the inner roof lining, and at least one absorbent film which is accommodated between the outer top cloth and the inner roof lining, is a plastic film produced at least from polyester and is provided on the insulating layer adjacent to the inner roof lining.
    Type: Application
    Filed: September 14, 2007
    Publication date: November 19, 2009
    Applicant: Edscha Cabrio-Dachsysteme GmbH
    Inventors: Xaver Wittenzellner, Alexander Reichelt, Hans-Joachim Bammann, Erwin Blessberger
  • Patent number: 7422990
    Abstract: A thermal and/or acoustic insulation product, and an apparatus and the process for manufacturing the product. The product is based on mineral wool of the glass wool or rock wool type. The product has at least part of its external surface uncovered. The product is surface-treated over at least a portion of the external surface with a composition having softening properties and including at least one surfactant.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: September 9, 2008
    Assignee: Saint-Gobain Isover
    Inventors: S├ębastien Beaufils, Claire Calero, Kathleen Coventry-Saylor
  • Patent number: 7311957
    Abstract: A sound absorbing material having a homogenous mixture of an organic man-made fiber, an inorganic man-made fiber, a co-binder, and a cellulose material wherein the organic man-made fiber is polyester, the inorganic man-made fiber is fiberglass, and the co-binder is a thermo-setting resin. The cellulose material may include Kaolin clay and/or boric acid.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: December 25, 2007
    Assignee: CTA Acoustics, Inc.
    Inventor: Matthew Bargo, II
  • Patent number: 7309664
    Abstract: A substrate, its process of manufacture, and its applications. The substrate includes a fibrous material which is provided, over at least a portion of its surface and/or within its thickness, with a coating with photocatalytic properties including a semi-conducting material with photocatalytic properties of the oxide or sulphide type.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: December 18, 2007
    Assignee: Saint-Gobain Recherche
    Inventors: Christian Marzolin, Arnaud Marchal, Xavier Talpaert
  • Patent number: 7186273
    Abstract: A polymer adapted for the Shrink resist treatment of textile materials imparting water, stain and/or oil repellency. The polymer includes a fluorinated polyether.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: March 6, 2007
    Assignee: Devan-PPT Chemicals Limited
    Inventors: John Ellis, Susan Bamford, Claire Louise Balcomb
  • Patent number: 6855398
    Abstract: An object of the present invention is, by utilizing carbon fibers as its constituent material, to provide a thermal-acoustic insulation material having excellent properties in durability, compression resilience, lightness, fireproofness, and non-galvanic corrosiveness. The material of the present invention comprises a wool-like carbon fiber aggregate composed of carbon fibers having an average fiber diameter of 0.5 ?m to 5 ?m and an average fiber length of 1 mm to 15 mm and the contact points of the fibers are bonded together by a thermosetting resin. The galvanic current of the material is 10 ?A or lower in a galvanic cell comprising an electrode composed of the thermal-acoustic insulation material, the other electrode composed of an aluminum plate, and an electrolytic solution composed of 0.45 wt. % sodium chloride aqueous solution.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: February 15, 2005
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Fumikazu Machino, Tsuyoshi Higo, Toshinobu Kataoka, Ryoichi Onoue, Toshio Date, Tominori Sato
  • Publication number: 20040176003
    Abstract: A thermal and acoustical insulation product is fabricated from rotary glass fibers, thermoplastic fibers and a small quantity of textile fibers, all preferably scrap fibers, and at least one binder. The thermal and acoustical insulation product is optimal for applications, such as, duct liners, high density industrial insulation boards, and OEM insulation applications. The small amount of textile fibers enhance the mechanical strength of the insulation product.
    Type: Application
    Filed: March 23, 2004
    Publication date: September 9, 2004
    Inventors: Alain Yang, Gary Tripp
  • Patent number: 6702914
    Abstract: A non-fiberglass containing sound absorbing moldable laminate of a fibrous batt and stiffening mats formed from chopped mono-filament polyester bonded by a thermoplastic binder is provided. The mono-filament mats stiffen the batt and allow use of all thermoplastic material in the composite.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: March 9, 2004
    Assignee: Harodite Industries, Inc.
    Inventors: John M. North, Michael P. Albert
  • Publication number: 20030134553
    Abstract: A sound absorbing article, which may be formed to a thickness of between 1 and 2 mm and have an NRC value between 0.8 and 0.85, is provided. Additionally the sound absorbing article may be formed of materials, which are flame retardant and environmentally friendly. The sound absorbing article includes (i) a material which is pervious to air, and which is characterized by proximal and distal surfaces with respect to a sound source, an internal structure, and a specific weight; (ii) a coating which adheres to the surfaces and internal structure, thus increasing the specific weight by a predetermined factor; and preferably (iii) a membrane, attached to the material at selected bonding points, forming interconnected channels between the material and the membrane, and allowing air to pass through them.
    Type: Application
    Filed: January 14, 2002
    Publication date: July 17, 2003
    Applicant: L.S.I. (420) Import Export And Marketing Ltd.
    Inventor: Arie Sheffer
  • Publication number: 20030096079
    Abstract: Sound attenuating laminates for use within vehicles are provided that include a substrate and polyurethane attached to selected portions of the substrate. The polyurethane is non-porous and serves as a barrier to attenuate sound passing through the substrate. Additional non-porous polyurethane may be added to one or more selected portions of the polyurethane layer to enhance sound attenuation characteristics in the one or more selected portions. Sound attenuating laminates for use within vehicles are provided that include a substrate and breathable polyurethane attached to selected portions of the substrate. The polyurethane serves as an absorber of sound (e.g., sound generated within a vehicle compartment). Additional breathable polyurethane may be added to one or more selected portions of the polyurethane layer to enhance sound absorption characteristics in the one or more selected portions.
    Type: Application
    Filed: November 21, 2001
    Publication date: May 22, 2003
    Inventors: Anthony Messina, Surendra Khambete, Girma Gebreselassie
  • Publication number: 20030021976
    Abstract: The object of the invention is a process for the production of a reinforced acoustically resistive layer, in which there is produced a layer of structural reinforcement (2) from fibers pre-impregnated with a thermosetting or thermoplastic resin, said layer having a given quantity of open surface relative to the acoustic waves to be handled, there is associated with said reinforcing layer (2) a metallic acoustic cloth (5) whose mesh is suitable for the quantity of open surface of said structural layer, and the polymerization or consolidation of said resins under pressure and temperature suitable for the resins used, is carried out, characterized in that there is associated with the impregnation resin for the fibers a component (2a) adapted for macromolecular interpenetration with said resin during the polymerization or consolidation so as to ensure for the reinforcing layer (2) improved mechanical and adhesive properties for the metallic cloth (5).
    Type: Application
    Filed: June 18, 2002
    Publication date: January 30, 2003
    Inventors: Pascal Dublineau, Michel Buge, Alain Porte
  • Patent number: 6322658
    Abstract: A method for making a unitary composite headliner adapted to be installed in a motor vehicle includes providing an inner layer and two reinforcing layers, each of which comprises polymeric material, the inner layer being configured to absorb sound and vibrations, and the reinforcing layers being configured to provide sufficient flexibility to the headliner to facilitate installation in the vehicle, while also providing sufficient rigidity to the headliner to enable the headliner to be self-supporting once installed in the vehicle; differentially heating the layers such that each reinforcing layer is heated to a respective predetermined reinforcing layer temperature, and the inner layer is heated to a predetermined inner layer temperature less than either respective reinforcing layer temperature; inserting the layers into a mold such that the inner layer is disposed between the reinforcing layers; and compressing the layers together to bond the layers and form the headliner.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: November 27, 2001
    Assignee: Lear Corporation
    Inventors: George B. Byma, John J. Gabrysiak
  • Patent number: 6323144
    Abstract: A convertible fabric having improved acoustical and heat transfer properties comprising an elastomeric polymer coating on a double woven fabric. The double woven having the standard sateen weave and the backing fabric of a plain weave interconnected to the sateen weave fabric with one surface of the plain weave coated with an elastomeric polymer to provide air spaces between the fabrics of the double woven fabric.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: November 27, 2001
    Assignee: Milliken & Company
    Inventor: Charles E. Dalbec
  • Patent number: 6297176
    Abstract: A non-fiberglass containing sound absorbing moldable laminate of a fibrous batt and stiffening mats formed from chopped mono-filament polyester bonded by a thermoplastic binder is provided. The mono-filament mats stiffen the batt and allow use of all thermoplastic material in the composite.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: October 2, 2001
    Assignee: Harodite Industries, Inc.
    Inventors: John M. North, Michael P. Albert
  • Patent number: 6146746
    Abstract: The use of a formaldehyde-free aqueous binder comprisingA) a polymer obtained by free-radical polymerization comprising 5-100% by weight of an ethylenically unsaturated acid anhydride or of an ethylenically unsaturated dicarboxylic acid whose carboxyl groups may form an anhydride group, andB) an alkanolamine having at least two hydroxyl groupsas a coating composition for shaped articles.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: November 14, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Reck, Eckehardt Wistuba, Wilhelm Friedrich Beckerle, Axel Kistenmacher, Robert Rupaner, Rainer Hummerich
  • Patent number: 6077613
    Abstract: A sound insulating membrane and processes for forming, particularly well suited for use in floor, ceiling and wall constructions. The membrane comprises at least one backing layer in contact with a layer of nonfoam polymeric material. The polymeric material has an elongation factor of about 500% to about 900% and a Shore A hardness of from about 65 to about 80 points, 5 seconds. In a preferred embodiment, the polymeric material comprises 40-70% chlorinated polyethylene, 20-30% ethylene vinyl acetate, and up to 10% polyvinyl chloride. Floor, ceiling and wall constructions and related methods utilizing the sound insulating membranes are also disclosed.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: June 20, 2000
    Assignee: The Noble Company
    Inventor: Walter J. Gaffigan