Class / Patent application number | Description | Number of patent applications / Date published |
181294000 | Materials | 79 |
20080236943 | SOUND PROOFING SYSTEM AND METHOD - A low-cost and easy to manufacture static structure and method for soundproofing walls, floors, and/or ceilings of rooms in new and/or existing construction utilizes an asphalt based flexible membrane as one or more sound absorbing layers which may be applied to an existing wall panel or first applied to one or more unmounted wall panels to form a laminated structure which is then affixed to the walls, floor or ceiling to be soundproofed. The wall panel is preferably gypsum wallboard. Each sound absorbing layer, in addition to soundproofing, may also serve to prevent or at least reduce air or water infiltration to and from the room. | 10-02-2008 |
20090065299 | SOUND DISSIPATING MATERIAL - A composite formed by a reinforced elastomer material that dissipates, isolates, and absorbs sound and vibrational energy waves. | 03-12-2009 |
20090133958 | Sound-absorbing element or transport means, in particular for aircraft - A sound absorption element for means of transport, in particular for aircraft, comprising at least one sound absorption panel arranged on a base panel with the base panel comprising a multitude of recesses, in particular a hole grid or the like, for the transmission of sound. | 05-28-2009 |
20090188748 | NOISE SUPPRESSION PANELS AND REPAIR METHODS THEREFOR - Methods are provided for repairing a defect in a noise suppression panel. In an embodiment, by way of example only, a method includes the steps of removing a section of the noise suppression panel that includes the defect to thereby create a cavity, forming an insert configured to mate with the cavity, the insert comprising an acoustic damping material comprising a plurality of fibers and a binder, and placing the insert within the cavity. | 07-30-2009 |
20090277717 | Acoustic Face of Polymer and Embedded Coarse Aggregates and An Acoustic Panel Assembly - Described is an acoustic face comprising a solid polymer resin and coarse aggregates embedded within the solid polymer resin, and an acoustic panel assembly comprising at least one frame with a central opening in which a pair of the acoustic faces are mountable in opposed and spaced-apart relation to each other. The coarse aggregates of the acoustic face and panel assembly enable the acoustics to benefit highly from the mass law, efficient manufacturing and cost savings on materials. | 11-12-2009 |
20100038168 | Covering Element Comprising a Sound Absorbing Element - A method for manufacturing a covering element, including: i) arranging in an injection mould a sound-absorbing element and an adhesive layer, such that the adhesive layer extends over at least apart of an inner surface of the sound-absorbing element; ii) introducing thermoplastic plastic material of increased temperature into the mould at increased pressure, wherein the plastic material spreads over substantially an outer surface of the sound-absorbing element and over a part of the adhesive layer; and iii) cooling the whole such that the thermoplastic plastic material forms a solid carrier element which is adhered to a part of the adhesive layer and wherein the sound-absorbing element is at least partly enclosed between the carrier element and the adhesive layer. | 02-18-2010 |
20100038169 | COMPOSITE MATERIALS FOR ABSORBING SOUND MADE FROM POLYESTER OF HIGH DENSITY AND METHOD FOR PREPARATION THEREOF - A high-density sound-absorbing composite material is made from polyester. The sound-absorbing composite material is comprised of a porous sound-absorbing base material which is based on composite polyester fiber materials and having a density of from 150 kg/D to 350 kg/D and a synthetic resin sheet that is attached to one side of the base material. In addition, an apparatus is provided for producing a high-density sound-absorbing composite material made from polyester, wherein by using the apparatus, a synthetic resin sheet is adhered to the high-density and porous sound-absorbing base material which is based on composite polyester fiber materials. The apparatus is characterized by mechanisms for: (1) inserting sound-absorbing base materials between on a flat working board and under the sheet while the revolution speed of a supporting roller on which the sheet is wound is being controlled, (2) fixing both corners of the sheet by pulling them to make the sheet align with the edge of the sound-absorbing base material, and (3) adhering the sheet tightly to the sound-absorbing base material by rotational motion of the roller. As a result, by blocking air flow through a wall face while maintaining porosity for soundproofing (sound-absorbing) effect of a sound-absorbing plate, an adsorption by dust, etc. can be prevented. | 02-18-2010 |
20100108439 | LAMINATED ACOUSTIC ABSORPTION SHEET WITH FLAME RETARDANT - The present invention relates to a light laminated acoustic absorption sheet. The light laminated acoustic absorption sheet with flame retardant is characterized in that one or more thermoplastic fibers (a) having a low melting point and selected from polyethylene, polypropylene, polyvinyl chloride, polyester, polyethylene-polyester copolymers, and one or more polyester interlaced-textured yarns or thermoplastic hollow fibers (b) having a higher melting point than the thermoplastic fiber (a) and selected from polyester, polyethylene, nylon, hot-meltable fluororesin are mixed and opened so as to prepare a mat, and two or more sheets of mats are laminated by using an apparatus of manufacturing a stampable sheet so as to manufacture the laminated sheet, and then the laminated sheet is impregnated with flame retardant liquid. | 05-06-2010 |
20100122870 | ENGINE WITH OIL PUMP MUFFLER AND NOISE DAMPER - A wrap-around cover or noise muffler of oil and temperature resistant noise absorbing resilient elastomer covers the front and sides of a front mounted engine oil pump forming a pump and muffler assembly. The muffler absorbs vibrations and reduces the transfer of noise frequencies from the oil pump to an engine front cover that covers the pump. Additionally, the front of the muffler is shaped to fill the gap and engage the front cover in compression between the oil pump and the rear surface of the front cover, thereby damping vibrations of the front cover adjacent to the oil pump and to an accessory drive pulley that rotates ahead of the front cover for driving accessories. | 05-20-2010 |
20100133039 | Hybrid Composite Structure having Damped Metallic Fibers and Method for Making the Same - A damped composite structure is formed from a matrix material and a plurality of shape memory alloy wire fibers held in the material matrix for damping the structure. The wire fibers may be embedded in a viscoelastic interlayer to increase damping of the structure. The wire fibers may be interspersed with reinforcement such as carbon fibers, in tows or in a mesh of fibers. The wire fibers have an inherent material loss factor greater than approximately 0.10, and may be formed from superelastic metal alloys, such as Ni—Ti, Cu—Zn—Al, Cu—Al—Ni, OR Cu—Al—Be. | 06-03-2010 |
20100147621 | SOUND ATTENUATING ARTICLES HAVING REBULKABLE NONWOVEN WEBS AND METHODS OF FORMING SAME - A method of forming a sound attenuating material includes heating a densified, rebulkable nonwoven web at a sufficient temperature and for a sufficient time to rebulk the nonwoven web to an open, lofty form; compressing the rebulked nonwoven web to a predetermined thickness; and cooling the compressed nonwoven web at a sufficient temperature and for a sufficient time to cause the compressed nonwoven web to maintain the predetermined thickness. The cooled, compressed nonwoven web may further be formed into a desired shape. One or more additional layers of material may be laminated to the densified, rebulkable nonwoven web substantially simultaneously with the heating step. The nonwoven web may be heated to a temperature above the melt point of at least one component fiber of the nonwoven web and heating may be accomplished by heating one or both sides of the nonwoven web. | 06-17-2010 |
20100224442 | SOUND BARRIER PANEL - A sound barrier panel is providing having a concrete substrate and a noise attenuation layer forming a composite panel, in which the noise attenuation layer is formed of recycled shredded rubber and a binder. | 09-09-2010 |
20100270104 | SHAPEABLE FRAMING SYSTEM - A shapeable framing element for the construction of panels comprising mounting means to affix said shapeable framing element to a substrate, said mounting means being divided into a plurality of mounting tabs defining a plurality of channels, thereby allowing said framing element to be shaped into curvilinear forms prior to being mounted upon said substrate. A shapeable element for attaching objects to a substrate. A method for constructing a panel enclosing a desired geometric volume upon a substrate | 10-28-2010 |
20100300801 | SOUNDPROOFING OR SOUND-ABSORBING MATERIAL - The described and claimed soundproofing material is planar and has an inhomogeneous structure. It consists of a textile or mesh having relatively thick, adjacent longitudinal components and relatively thin components running in the transverse direction at a spacing from one another. Longitudinal microslits are formed between the longitudinal components by the distribution of the thin transverse components. The width of the microslits amounts to 0.01 and 0.4 mm, and the thickness of the longitudinal components amounts to at least five to ten times that of the microslits. | 12-02-2010 |
20100320030 | SOUND ABSORBING SKIN MATERIAL AND SOUND ABSORBING MATERIAL UTILIZING THE SAME - A lightweight sound absorbing surface material, having an excellent sound absorbing property and moldability, and a sound absorbing material using the sound absorbing surface material, are provided in the present invention. The sound absorbing surface material | 12-23-2010 |
20110024229 | Sound Insulating and Absorbing Automotive Foot Mat Structure - A sound insulating and absorbing automotive foot mat structure includes at least an upper water-proof layer and a lower sound absorbing layer. The upper water-proof layer is configured as a foaming material, and the lower sound absorbing layer is configured as needle-bonded cotton having a sound absorbing effect. Above the water-proof layer, it can be even added with a blanket and thermoplastic elastomer. Each layer of parts is attached and is formed integrally via a die-cast technology, allowing the mat to be provided with multiple functions of sound insulating, vibration reduction, sound absorbing, water-proofing, light weight and inexpensive manufacturing cost. | 02-03-2011 |
20110031064 | NON-COMBUSTIBLE SOUND-ABSORBING FACING - The present invention relates to a non-combustible, sound-absorbing facing (30) having an air flow resistivity of between 80 and 3,000 Rayls and a weight per unit area of between 20 and 1,000 g/m | 02-10-2011 |
20110094826 | COMPOSITE LAMINATE FOR A THERMAL AND ACOUSTIC INSULATION BLANKET - This invention is directed to a composite laminate comprising in order (a) a flame retardant polymeric moisture barrier (b) an inorganic platelet layer and (c) a flame retardant thermoplastic film layer The invention is also directed to a thermal insulation and acoustic blanket comprising a core of fibrous material or foam surrounded by the above composite laminate wherein the thermoplastic film layer of the composite laminate contacts and encapsulates the core. | 04-28-2011 |
20110094827 | HEAT-CONDUCTIVE NOISE SUPPRESSION SHEET - A heat-conductive noise suppression sheet according to an embodiment includes first ferrite particles, second ferrite particles, a heat-conducting material, and a matrix material. The first ferrite particles are spherical particles having an average particle diameter in the range of 50 μm to 150 μm, the content of the first ferrite particles with respect to the total amount of solid components being in the range of 5 vol % to 25 vol %. The second ferrite particles are irregularly shaped particles having an average particle diameter in the range of 50 μm or less, the content of the second ferrite particles with respect the total amount of solid components being in the range of 5 vol % to 45 vol %. | 04-28-2011 |
20110147120 | FLOOR COVERING - A floor covering having slip-resistance and sound attenuation properties, particularly for reducing levels of sound resulting from high impact interactions. The floor covering includes at least a first layer and a second layer, wherein the first layer includes a particulate material at least partially embedded therein, and the second layer is capable of providing a sound attenuation effect with an acoustic impact sound reduction of at least about 15 decibels. | 06-23-2011 |
20110180348 | HYBRID SOUND ABSORBING SHEET - A hybrid sound absorbing sheet, comprising a microperforated film and a perforated metal foil disposed on the microperforated film, is provided. Also provided is a hybrid sound absorbing sheet comprising a microperforated film and a perforated metal foil disposed on the microperforated film, wherein the perforated metal foil is embossed. | 07-28-2011 |
20110186381 | SOUND ABSORBING MATERIAL, MULTILAYER SOUND ABSORBING MATERIAL, MOLDED PRODUCT OF MULTILAYER SOUND ABSORBING MATERIAL, SOUND ABSORBING INTERIOR MATERIAL, AND SOUND ABSORBING FLOOR COVERING MATERIAL - The object of the present invention is to provide a sound absorbing material having a light weight and excellent sound absorbing performance, and a sound absorbing material consisting of a fiber sheet made of fibers containing at least 50% by mass of a porous fiber having many minute pores, each minute pore opening onto the surface of the porous fiber, and having an airflow resistance in the range of between 0.05 and 3.0 kPa·s/m. | 08-04-2011 |
20110220435 | Sound Absorbing Device - An optically reflective sound absorbing device ( | 09-15-2011 |
20110226547 | Fiber Composite Acoustic Damping Material - A damping material ( | 09-22-2011 |
20110232993 | LAMINATED PERFORATED ACOUSTICAL FOAM - Prepare an acoustical polymeric foam by providing at least two initial polymeric foams, perforating all the way through the initial polymeric foams and then laminating the perforated initial foams together such that a perforated surface of one foam adheres to a perforated surface of an adjoining perforated initial foam. | 09-29-2011 |
20110247894 | MOLDING A LIGHTWEIGHT CAST ACOUSTICAL PRODUCT - A lightweight cast article that is made by the method of the present invention. A foamed acoustical product is prepared by blending a starch with cold water, then heating the starch/water blend to form a starch gel. Mineral wool is added to the starch gel to form a pulp and the pulp is wet-mixed until wool nodules are formed. The pulp is then combined with a surfactant and an amount of foam water. The foaming agent is selected from the group consisting of a linear sodium dodecylbenzene sulfonate, a cocamidopropyl betaine, a cocamidopropyl hydroxysultaine, their salts and mixtures thereof. Mixing of the foaming agent and pulp continues to form a foamed pulp. The foamed pulp is cast into a mold and allowing the foamed pulp to dry forming a foamed product. The foamed product is removed from the mold. | 10-13-2011 |
20110266089 | Acoustic markers - An acoustic reflector is described comprising a shell around a core, in which portions of the shell are capable of transmitting acoustic waves incident on the shell into the core to be focused and reflected from an area of the shell located opposite to the area of incidence of the acoustic waves to provide a reflected acoustic signal output from the reflector. Incident acoustic radiation will be differentially reflected depending on the portion of the reflector on which the incident acoustic radiation impinges. | 11-03-2011 |
20110284320 | ACOUSTIC ATTENUATION SYSTEM - An acoustic attenuation system and a method for attenuating or isolating vibration, including one or more multilayer laminate sheets having at least one rigid layer and at least one soft layer. The rigid layer may contain urethane foam, fibrous material and optionally other fillers, while the soft layer may be made of open or closed cell polymeric foam. The attenuation system includes the laminate sheets in place of or in addition to building partition materials such as flooring, drywall, and the like. In addition, the laminate sheets may be used to isolate vibration from transferring beyond objects, for example amplifiers, speakers, musical instruments and mechanical equipment located on surfaces or floors. Further, the laminate sheets may be used as exercise boards to protect the joints of the exerciser as well as isolate vibration created during physical training on the board. | 11-24-2011 |
20110290585 | Acoustic Baffle Members and Methods for Applying Acoustic Baffles in Cavities - An uncured acoustic absorbing member ( | 12-01-2011 |
20110303483 | FLOATING DEVICE PROVIDING NOISE REDUCTION PROPERTIES - The present invention relates to a floating noise reduction system for moving and/or falling fluids, the process for manufacturing of such system and the use of such system. | 12-15-2011 |
20110308885 | ANTI-NOISE PANEL - It is disclosed an anti-noise panel comprising a front shell and a rear shell that are coupled together within which rubber elements of specifically designed shape and size are incorporated. Said panel can be advantageously obtained by using also recycled, injected thermoplastic material, that allows the resulting panel to be conveniently used when the wind causes strong impact, for example, along railway lines where the compression waves generated by trains traveling at high speed over time tend to disassemble the riveted aluminum/steel sound barriers currently in use. | 12-22-2011 |
20120012420 | DOMESTIC APPLIANCE HAVING AT LEAST ONE NOISE-DEADENING AND/OR SOUND-INSULATING COATING AND ASSOCIATED PRODUCTION METHOD - A domestic appliance, in particular a domestic dishwasher, includes at least one component, and at least one noise-deadening and/or sound-insulating coating applied on the component. The noise-deadening and/or sound-insulating coating includes or is made entirely of a reactively cured bituminous mixture. The component can be a wall section for delimiting a rinsing chamber of the dishwasher, or can be a base tray of a rinsing container of the dishwasher. | 01-19-2012 |
20120024626 | COMPOSITE SOUND ABSORBER - A sound absorbing material comprising a nonwoven fibrous acoustic insulation material and a flow resistive non-woven facing, wherein the flow resistive nonwoven facing is bonded to the insulation material and has an air flow resistance of from about 600 to about 1800 Rayls and a surface mass of from about 20 to about 150 g/m | 02-02-2012 |
20120073899 | Laminated Acoustic Soundproofing Panel - A laminated acoustic building panel comprises a pair of plasterboard substrates ( | 03-29-2012 |
20120080262 | Method for Producing a Lightweight, Sound Insulating Covering for Motor Vehicles and Corresponding Covering - A method for producing a lightweight, sound insulating covering ( | 04-05-2012 |
20120103722 | Sound Attenuating Laminate Materials - Sound absorbing or attenuating laminate flooring materials are provided, which are directed to be used in the production of floor covering, floor panels, furniture panels, cabinets, counter-tops and wall panels. As well, the methods for producing such products are provided. In particular, abrasion resistant panels, with a laminated structure, created by forming an assembly which consists of laminating a heat-activated resin impregnated paper wear layer, a decorative layer with printed graphics or a wood veneer decorative layer, a medium density (MDF) or high-density (HDF) natural fiber-based core and a resin impregnated paper balancing layer. To achieve sound absorbing and/or attenuating properties, any or all paper layers may be pre coated with an additional flexible elastomeric coating, film or material prior to assembly of the panel, or the natural fiber core panel may be coated with a flexible elastomeric coating, film or material prior to assembly with the papers. The flexible elastomeric coating, film or material acts to absorb, reduce, and/or ameliorate the sound transmissions inherent in laminated panels. | 05-03-2012 |
20120103723 | Sound insulating element and process for producing a sound insulating element - The invention relates to a sound insulating element for the ceiling area of a building, in particular for rooms subject to increased humidity such as underground parking, and basement rooms, which sound insulating element consists of an insulation element ( | 05-03-2012 |
20120125712 | Support Membrane for Floors, Ceilings or Residential Walls - A support membrane designed to be arranged with a covering that can be applied to bearing areas such as floors or even under and on concrete screeds for a floor is provided. Said membrane can also be used in the composition of ceilings and in the composition of residential walls. The membrane includes a base layer made of fibers and designed to be arranged directly on the bearing area so as to absorb sound waves and to level the irregularities of the bearing area, a vapor barrier-anchoring membrane, and optionally an underlay designed to receive the covering and provide an anchor for the finishing products. Said support membrane is characterized in that the vapor barrier-anchoring membrane thereof is applied in liquid form by hot-melting directly on the base layer and on the underlay whenever the latter is used. Said support membrane improves heat transmission by reflectivity in the room in which the wall, floor or ceiling is located, as well as guaranteeing much more efficient predefined laying of the floor thanks to the anchoring membrane contained by the former, which reduces the tension effect the floor finish can cause. | 05-24-2012 |
20120160603 | Exterior Acoustic Louvre - An exterior acoustic louvre comprises a louvre body which defines major upper and lower surfaces and minor side surfaces. The louvre body includes a support element, a sound-energy absorption element supported by the support element, and a flexible plastics watertight element which watertightly encases the sound-energy absorption element. The louvre body is arranged so that the watertightly encased sound-energy absorption element can receive sound energy in the directions of both the upper and lower major surfaces of the louvre body. | 06-28-2012 |
20120205192 | PANEL FOR ACOUSTIC TREATMENT COMPRISING A JUNCTION BETWEEN TWO PARTS AND PROCESS FOR THE REPARATION OF A PANEL FOR ACOUSTIC TREATMENT - An acoustic treatment panel includes two portions with edges spaced in one direction, and from the outside to the inside, a first acoustically resistive layer, a first alveolar structure, and a reflective layer, and a block inserted between the two edges which includes, from the outside to the inside, a second acoustically resistive layer arranged at the first acoustically resistive layer and a second alveolar structure. The block includes at least one sector of alveolar structures with sloped pipes whose height is less than that of the first alveolar structure, whereby the pipes are sloped in a direction such that the ends of the pipes are close to one of the edges of the portions at the first acoustically resistive layer, and the opposite ends of the pipes are moved away from the edge and the reflective layer so as to house connecting elements between the block and the panel. | 08-16-2012 |
20120279800 | MULTILAYER COMPOSITE MATERIAL - The invention concerns a multilayer composite material comprising at least one core ( | 11-08-2012 |
20120325579 | SOUND BARRIERS MADE FROM SCRAP AND WASTE MATERIALS - Sound barrier panels that are made from various waste materials, including scrap fiberglass reinforced plastic (FRP), scrap carpet fibers, recyclable plastics and mineral wool. | 12-27-2012 |
20130043091 | CONSTRAINED LAYER DAMPING MATERIAL AND SYSTEM - A damping composition for a vibrational damping layer is provided, including about 5 to about 40 weight percent butyl rubber and about 4 to about 12 weight percent ethylene copolymer. In one embodiment, the damping composition can include about 10 to about 30 weight percent butyl rubber, about 4 to about 12 weight percent ethylene vinyl acetate about 10 to about 40 weight percent filler, about 5 to about 15 weight percent plasticizer, about 2 to about 30 weight percent tackifier, and about 1 to about 10 weight percent adhesion promoter. A damping system is also provided, including a base blank, a constraining layer, and a damping layer, wherein the damping layer comprises from about 5 to about 40 weight percent of a butyl rubber, and is in contact with and positioned in between the base blank and the constraining layer. | 02-21-2013 |
20130068555 | ACOUSTIC BARRIER - An acoustic dampening panel comprising: (a) a first layer of expanded polypropylene; (b) a solid layer having a surface weight between 2.4 kilograms per meter squared and 25 kilograms per meter squared; and, (c) a second layer of expanded polypropylene, where the first and second layers of expanded polypropylene sandwich the solid layer therebetween. The acoustic dampening panel may further comprise a fourth layer comprising a metal skin, where the solid layer and the metal skin sandwich the second layer therebetween. | 03-21-2013 |
20130087409 | OPTIMIZED PATTERN OF A DAMPING LAYER FOR WALL, FLOOR, AND CEILING CONSTRUCTIONS - An acoustic damping article includes a substrate, wherein the substrate has a surface area S. The acoustic composition further includes a polymer resin. The polymer resin coats partially the surface area with a set of areas. The ratio of the coated areas over the surface area S is less than 1 and the polymer resin coverage is not greater than about 500 g/m | 04-11-2013 |
20130133979 | ACOUSTIC ENERGY ABSORPTION METAMATERIALS - An acoustic energy absorption metamaterial includes at least one enclosed planar frame with an elastic membrane attached having one or more rigid plates are attached. The rigid plates have asymmetric shapes, with a substantially straight edge at the attachment to said elastic membrane, so that the rigid plate establishes a cell having a predetermined mass. Vibrational motions of the structure contain a number of resonant modes with tunable resonant frequencies. | 05-30-2013 |
20130133980 | Articles Containing Woven or Non-Woven Ultra-High Surface Area Macro Polymeric Fibers - This disclosure relates to articles that comprise polymeric winged fibers. The winged fibers have a high surface area because of their structure, which includes a core surrounded by a plurality of lobes. Channels of one micron or less in width are formed between adjacent lobes to form paths for the capture and/or transport of gases, liquids or particles. The winged fibers are assembled in woven or non-woven fabrics for use in wipes, absorbent pads, composite structures, apparel, outdoor wear, bedding, filtration systems, purification/separation systems, thermal and acoustic insulation, cell scaffolding, and battery membranes. | 05-30-2013 |
20130175116 | REINFORCED ACRYLIC GLASS PANELS - Transparent panel of acrylic glass (PMMA) having internal reinforcement elements for securing fragments of the acrylic glass formed upon an impact with a foreign body. The reinforcement elements are embedded interspersed within the panel and spaced apart in parallel longitudinally. The reinforcement elements include rigid cables and elastic cables. The rigid cables are formed of a metal having an ultimate tensile strength of at least 500 MPa. The elastic cables are formed of a metal having a percentage elongation (engineering strain at fracture) of at least 30%, preferably between 40% and 80%. The rigid cables and elastic cables may be separate and spaced apart from one another, or intertwined with each other. The panels may be used to form an acoustic barrier. | 07-11-2013 |
20130199872 | GYPSUM PANEL HAVING OUTSTANDING SOUND-ABSORBING PROPERTIES AND A PRODUCTION METHOD THEREFOR - Disclosed is a gypsum panel having outstanding sound-absorbing properties whereby it is possible to impart various aesthetic effects while also having outstanding sound-absorbing effects. The gypsum panel having outstanding sound-absorbing properties according to the present invention comprises: a perforated gypsum body having a plurality of holes, and a sound-absorbing cover layer which is attached to one side of the gypsum body and which has through-holes of a smaller size than the holes, wherein the mean diameter of the through-holes is between 10 and 40 μm. | 08-08-2013 |
20130240291 | Acoustical Sound Proofing Material With Improved Fracture Characteristics and Methods for Manufacturing Same - A material for use in building construction (partition, wall, ceiling, floor or door) that exhibits improved acoustical sound proofing and fracture characteristics optimized for efficient installation. The material comprises a laminated structure having as an integral part thereof one or more layers of viscoelastic material which also functions both as a glue and as an energy dissipating layer; and one or more constraining layers, such as gypsum or cement-based panel products modified for easy fracture. In one embodiment, standard paper-faced wallboard, typically gypsum, comprises the external surfaces of the laminated structure with the inner surface of said wallboard being bare with no paper or other material being placed thereon. The resulting structure improves the attenuation of sound transmitted through the structure while also allowing installation of the sound proofing material as efficiently as the installation of standard material when the sound proofing material is used alone or incorporated into a partition assembly. | 09-19-2013 |
20130248283 | RECYCLABLE ACOUSTIC ABSORBENT AND MANUFACTURING METHOD THEREOF - Disclosed is an acoustic absorbent including a fiber web formed of a melt-blown fiber and a polypropylene staple fiber, wherein the melt-blown fiber is prepared by melt-extruding a resin composition including a homo polypropylene and a polypropylene-based elastomer. Tensile elongation of the acoustic absorbent is improved as the content of the polypropylene-based elastomer increases. Due to excellent fitting property, the acoustic absorbent has excellent fitting property and, thus, can be efficiently fixed in a product with a complicated surface appearance. Further, by using a predetermined content of a polypropylene-based elastomer, the acoustic absorption performance of the acoustic absorbent is considerably improved. | 09-26-2013 |
20130270036 | PLASTIC ACOUSTIC MATERIAL AND METHODS OF MANUFACTURING THEREOF - A method of manufacturing plastic acoustic material including transforming plastic precursor material into plastic granules, filling a mold with the granules while forming air pockets between the granules in the mold, heating the mold, thereby at least partially melting the granules in the mold, and cooling the mold, thereby allowing the at least partially melted granules to solidify around the air pockets and thereby forming the plastic acoustic material. | 10-17-2013 |
20130341121 | NOISE-ABSORBENT FABRIC FOR VEHICLE AND METHOD FOR MANUFACTURING THE SAME - Disclosed is a noise-absorbent fabric for a vehicle and a method for manufacturing the same. The noise-absorbent fabric for the vehicle includes a mono-layered nonwoven fabric and a binder. The mono-layered nonwoven fabric is formed of a super fiber, such as an aramid fiber, with a fineness of about 1 denier to about 15 deniers and a thickness of about 3 mm to about 20 mm. The binder is located in the same layer as the nonwoven fabric to maintain a three-dimensional shape of the nonwoven fabric. | 12-26-2013 |
20140008145 | SOUND ABSORBING AND INSULATION COMPOSITION MATERIAL COMPOSITION - The present invention discloses a sound absorbing and insulating composite material composition formed by attaching at least one non-woven fiber layer and at least one polyethylene film closely with each other, and the non-woven fiber layer is a stacked fiber layer made of a renewable green fiber material and manufactured by the non-woven fabric manufacturing method, and the non-woven fiber layer has a thickness equal to or greater than 1 mm, and the polyethylene film has a thickness from 0.009 mm to 0.1 mm. | 01-09-2014 |
20140008146 | METHOD AND DAMPING ELEMENT FOR REDUCING THE NATURAL VIBRATION OF A COMPONENT - The invention relates to a method for the reduction of the natural vibration (resonance) of a component ( | 01-09-2014 |
20140014439 | COMPOSITE SOUND ABSORBER - A sound absorbing material comprising a nonwoven fibrous acoustic insulation material and a flow resistive non-woven facing, wherein the flow resistive nonwoven facing is bonded to the insulation material and has an air flow resistance of from about 600 to about 1800 Rayls and a surface mass of from about 20 to about 150 g/m | 01-16-2014 |
20140027200 | SOUND-PROOF MATERIAL AND PROCESS FOR PRODUCTION THEREOF, SOUND-PROOF MOLDING, AND SOUND INSULATION METHOD - The present invention relates to a sound-proof material containing a first sound-absorbing material disposed facing a sound source, a first soft sound-insulating layer laminated on a face of the first sound-absorbing material opposite to the sound source and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm | 01-30-2014 |
20140027201 | ACOUSTIC METAMATERIALS - Metamatenal members for absorbing sound and pressure, and modular systems built of metamaterial members are provided. The metamaterial member includes an outer mass. The outer mass can have a cavity formed therein in which a stem coupled to an inner mass is disposed, or the outer mass can be solid and contain an inner mass embedded therein. The inner mass can include an inner core and an outer shell. Multiple metamaterial members can be attached to form a modular system for absorption of sound and pressure. | 01-30-2014 |
20140097038 | Sound-Absorbing Member Lamination Structure - There is provided a sound absorbing member lamination structure in which the functions by the sound field adjustment can effectively be achieved by preventing the sound reflection against an intension of design in a boundary between the sound absorbing member and the other layer, when the sound absorbing member and the other layer are laminated into a united body. When the sound absorbing member and the other layer are placed in a stacked state, they are bonded with the use of a pressure-sensitive adhesive, so that the sound absorbing member and the other layer are combined together, with the pressure-sensitive adhesive kept uncured in a stacked state of the sound absorbing member and the other layer. Thus, such an uncured pressure-sensitive adhesive does not become a reflection portion of a sound. It is therefore possible to cause the sound to pass through appropriately the boundary between the respective layers. | 04-10-2014 |
20140138182 | GLASS FIBER-BASED SOUND ABSORBING SHEET HAVING ADJUSTABLE PERMEABILITY AND AIR POROSITY - The present invention relates to a sound absorbing sheet having excellent sound absorbing performance and surface decorative effects. The sound absorbing sheet of the present invention is characterized by comprising a base and having an average sound absorption of 0.4 or higher in a frequency range of 200 to 2000 Hz. The permeability and air porosity of a base layer of the sound absorbing sheet of the present invention may be adjusted, thereby achieving significantly superior effects of sound absorbing performance despite the thinness of the sound absorbing sheet. | 05-22-2014 |
20140144723 | HIGH TEMPERATURE RESISTANT SOUND ABSORBING MATERIALS FOR VEHICLE - Disclosed is a highly heat resistant sound absorbing material for a vehicle capable of maintaining a shape even at high temperatures of about 200° C. or above and which satisfies UL 94V-0 flame retardancy. More particularly, the a highly heat resistant sound absorbing material includes a fiber material having a limiting oxygen index (LOI) of at least about 25% and capable of maintaining a shape at a temperature of about 200° C. or above, and a thermosetting binder resin capable of maintaining a shape at a temperature of about 200° C., wherein the fiber material and thermosetting binder resin are provided at a specific proportion. | 05-29-2014 |
20140151151 | HETEROGENOUS ACOUSTIC STRUCTURE FORMED FROM A HOMOGENEOUS MATERIAL - An acoustic structure comprising comprises a layer of material having a first Young's modulus called the intrinsic modulus and a first density called the intrinsic density, characterized in that the layer comprises at least one first zone having said first Young's modulus and said first density and at least one second zone buried in the volume of said layer of material and having a second Young's modulus and/or a second density obtained by implanting and/or by diffusing atoms into the volume of said layer. | 06-05-2014 |
20140151152 | Sound Attenuation Building Material and System - A building material configured to enhance sound attenuation and reduction in dB across a walled partition, the building material comprising a facing membrane, a core matrix disposed about the facing membrane, the core matrix comprising a plurality of microparticles and a binder solution configured to support the microparticles, the building material comprising at least a substantially exposed face, wherein a side of the core matrix is at least partially exposed to increase sound attenuation by reducing reflections from sound waves impinging on the building material as compared to a control building material lacking an exposed face. Two building materials may be used in conjunction with one another about a building structure, such as a stud wall, to create and define a sound trap that functions to reduce sound transmission across the partition formed by the stud wall and building materials. | 06-05-2014 |
20140174849 | INCREASING THE SOUND ABSORPTION IN FOAM INSULATING MATERIALS - The invention relates to the use of expandable graphite having a starting temperature greater than or equal to 150° C. for increasing the sound absorption within a sound absorption foam material foamed with the expandable graphite, wherein the foam material is a polyurethane foam material. An associated sound absorber having a sound absorption foam material made of a polyurethane integral foam or polyurethane flexible foam, which is open-cell at least in the core region thereof, has a density greater than or equal to 120 g/l and a content of at least 5 wt % of expandable graphite to 100 parts by weight of isocyanate-reactive components, in particular polyol. The sound absorber can preferably be used for sound absorption in engine compartments of motor vehicles. The sound absorber can also be used very advantageously inside relatively complex components and in the design-dependent cavities of machines. | 06-26-2014 |
20140196982 | SOUND ATTENUATING LAMINATE MATERIALS - Sound absorbing or attenuating laminate flooring materials are provided, which are directed to be used in the production of floor covering, floor panels, furniture panels, cabinets, counter-tops and wall panels. As well, the methods for producing such products are provided. hi particular, abrasion resistant panels, with a laminated structure, created by forming an assembly which consists of laminating a heat-activated resin impregnated paper wear layer, a decorative layer with printed graphics or a wood veneer decorative layer, a medium density (MDF) or high-density (HDF) natural fiber-based core and a resin impregnated paper balancing layer. To achieve sound absorbing and/or attenuating properties, any or all paper layers may be pre coated with an additional flexible elastomeric coating, film or material prior to assembly of the panel, or the natural fiber core panel may be coated with a flexible elastomeric coating, film or material prior to assembly with the papers. The flexible elastomeric coating, film or material acts to absorb, reduce, and/or ameliorate the sound transmissions inherent in laminated panels. | 07-17-2014 |
20140216847 | REINFORCED ACOUSTICAL MATERIAL HAVING HIGH STRENGTH, HIGH MODULUS PROPERTIES - A multilayer composite material is formed of an acoustic core layer and at least one outer strengthening layer. The acoustic composite material has desirable high strength and high flexural modulus properties. | 08-07-2014 |
20140238775 | SOUND INSULATING MATERIAL AND SEALING MATERIAL - A sound insulating material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. The content ratio of a sulfur atom calculated by a fluorescent X-ray measurement, based on mass, is 1000 ppm or less. The sound insulating material has a 50% compressive load value of 0.1 N/cm | 08-28-2014 |
20150041249 | Soundproof panel connection structure - A soundproof panel connection structure including: a plurality of posts spaced apart from each other on the floor by a given distance; a plurality of soundproof panels each located between the neighboring posts and having fastening portions disposed on both end portions thereof; bending portions each extended from one side surface of each soundproof panel; soundproof materials each interposed between each fastening portion and each bending portion in such a manner as to be supportedly brought on one surface thereof into contact with one side surface of each post; and a plurality of connection joints each coupled on both ends thereof to the fastening portions disposed on both side surfaces of each post, wherein the post located at the corner portion in the plurality of posts has supports located at the outer surfaces thereof. | 02-12-2015 |
20150075902 | INSULATING GLAZING WITH THERMAL PROTECTION INSULATING PANEL - A sound-damped insulating glazing is described. The glazing has a first pane and a second pane, a peripheral spacer between the first pane and the second pane, an externally encircling seal in a gap between the first pane, the peripheral spacer and the second pane, a vacuum insulating panel between the first pane, the second pane and the peripheral spacer, and at least one acoustic insulating plate is arranged on at least one surface of the vacuum insulating panel. | 03-19-2015 |
20150090526 | SOUND ABSORBING (ACOUSTIC) BOARD - A sound absorbing board ( | 04-02-2015 |
20150122578 | AUDIO DEVICE - An acoustic device is provided with an outer casing comprising a molded article which is made of a resin composition having a loss factor of 0.04 or more, the resin composition comprising a resin component comprising poly(lactic acid) and/or a lactic acid copolymer in an amount of 50% by weight or more, and at least an inorganic filler, a hydrolysis inhibitor, and a plasticizer. | 05-07-2015 |
20150129354 | Thermo-Acoustic Protection Structure for a Rotating Machine - The application provides a thermo-acoustic protection structure for a rotating machine. The thermo-acoustic protection structure includes an upper wall and a parallel lower wall, and between them is placed at least one acoustic absorbent material. The upper wall and the lower wall being connected with at least one connecting element of an extended form. The connecting element presenting, in transverse section, at least one portion, curved or rectilinear, that is non-orthogonal to the two walls. A length of the connecting element between the upper wall and the lower wall is greater than a distance between the upper wall and the lower wall. The connecting element further presents in transverse section at least one edge. | 05-14-2015 |
20150129355 | COMPOSITE SOUND ABSORBER - A sound absorbing material comprising a nonwoven fibrous acoustic insulation material and a flow resistive nonwoven facing, wherein the flow resistive nonwoven facing is bonded to the insulation material and has an air flow resistance of from about 600 to about 1800 Rayls and a surface mass of from about 20 to about 150 g/m | 05-14-2015 |
20150315782 | INSULATION ELEMENT, EXPANDED INSULATION ELEMENT, USE OF SAME AND METHOD FOR INSULATION - The invention relates to an insulation element, in particular for the acoustic insulation of an opening and/or of a cavity in a vehicle or building, having a carrier element and an expendable material. The carrier element has a plurality of through-holes, wherein only one surface of the carrier element is covered at least partially with expandable material, and the expandable material at least partially fills the through-holes. The invention relates furthermore to an insulation element produced therefrom, the use of the same and a method for the acoustic insulation and/or reinforcement of an opening or a cavity in a land, air or water vehicle or in a building. | 11-05-2015 |
20150356962 | METAL FOIL WITH MICROCRACKS, METHOD OF MANUFACTURING THE SAME, AND SOUND-ABSORBING STRUCTURE HAVING THE SAME - A method of manufacturing a metal foil with microcracks includes placing a metal foil between a first material sheet and a second material sheet and then rolling them to form a plurality of microcracks in the metal foil. The microcracks are penetrating, and a sidewall of each of the microcracks is an irregular rough surface. Two ends of each of the microcracks are acute angles. A sound-absorbing structure includes at least one metal foil and a base plate kept at a distance from the metal foil, wherein at least one resonant cavity air layer is formed between the metal foil and the base plate by the distance, and the metal foil has microcracks. | 12-10-2015 |
20160032583 | ACOUSTIC CEILING TILES WITH ANTI-SAGGING PROPERTIES AND METHODS OF MAKING SAME - An acoustic tile with excellent anti-sagging properties is provided. The tile comprises a soy-protein binder selected from the group consisting of soy flour, soy protein concentrate, soy protein isolate and any combination thereof. In further embodiments, the tile further comprises polyamide-epichlorohydrin. Other tiles include those made with a thermosetting binder selected from the group consisting of an acrylic binder, a polyester binder, an acrylo-polyester binder and any mixture thereof. Energy-efficient methods for making the tiles are also provided. | 02-04-2016 |
20160035338 | METHOD FOR MANUFACTURING SOUNDPROOFING BOARD PART HAVING EXCELLENT SOUND ABSORPTION PERFORMANCE AND SOUNDPROOFING BOARD PART MANUFACTURED BY THE SAME - Disclosed is a method for manufacturing a soundproofing board part having improved sound absorption performance. The soundproofing board part is manufactured by using, as a material, a recycled soundproofing material which contains a polyurethane foam having excellent sound absorption performance and impact resilience during the press molding; and by producing a sound absorption part on the back surface of the soundproofing board part through a remolding processing method. Also disclosed is a soundproofing board part manufactured by the method. | 02-04-2016 |
20160063983 | Novel Electronic Tablet Sound Amplifying Device - A deployable curved plane is deployed below the speaker outlet of an electronic tablet. The curve conforms to the tablet when not deployed, and projects sound towards the user when deployed. When the amplifying curve is not deployed, it retracts and conforms to the tablet shape. | 03-03-2016 |
20180022298 | ACOUSTICAL ABSORBER HAVING A BODY AND AT LEAST ONE SERRATED WASHER | 01-25-2018 |