WO2004093055A1 - Aus korkpartikeln und wärmeraktivem bindemittel gebildeter poröser schallabsorber und verfahren zu dessen herstellung - Google Patents
Aus korkpartikeln und wärmeraktivem bindemittel gebildeter poröser schallabsorber und verfahren zu dessen herstellung Download PDFInfo
- Publication number
- WO2004093055A1 WO2004093055A1 PCT/EP2004/001859 EP2004001859W WO2004093055A1 WO 2004093055 A1 WO2004093055 A1 WO 2004093055A1 EP 2004001859 W EP2004001859 W EP 2004001859W WO 2004093055 A1 WO2004093055 A1 WO 2004093055A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- binder
- molded part
- sound absorber
- absorber according
- cork particles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/007—Cork
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/049—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using steam or damp
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
- B29C67/205—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising surface fusion, and bonding of particles to form voids, e.g. sintering
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/165—Particles in a matrix
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
- B29C2043/345—Feeding the material to the mould or the compression means using gas, e.g. air, to transport non liquid material
- B29C2043/3455—Feeding the material to the mould or the compression means using gas, e.g. air, to transport non liquid material for particles, powder, fibres, e.g. fluidized or sprayed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2311/00—Use of natural products or their composites, not provided for in groups B29K2201/00 - B29K2309/00, as reinforcement
- B29K2311/14—Wood, e.g. woodboard or fibreboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
- B29K2711/02—Cork
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0091—Damping, energy absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3041—Trim panels
Definitions
- the invention relates to a sound absorber, in particular for motor vehicles, which is formed from a porous molded part made from cork particles and a heat-reactive binder, and to a method for producing such a sound absorber, in which cork particles with a heat-reactive binder are introduced into a mold and the binding agent binds Heat is triggered.
- a large number of sound-absorbing or -damping components have already been developed to reduce noise emissions from motor vehicles. These are in particular acoustically effective linings in the engine compartment and in the wheel arches, which are exposed to relatively high temperatures or mechanical stresses caused by stone chips.
- Plastic components e.g. Made of expanded polypropylene, have only a low resilience under pressure or stone chips.
- the usual requirements for components of this type also include the lowest possible weight in view of the fuel consumption generally increasing with the weight of the vehicle and cost-effective manufacture, and this in each case combined with high acoustic effectiveness.
- a porous molded body which consists of a mixture of cork granules and an adhesive baked at low ambient pressure with the addition of heat, the mixture additionally containing sawdust and pine needles or pine needle shot.
- the cork granulate consists of cork shot with a grain size of 1 to 2 mm and cork flour.
- a urea condensation product is used as the adhesive.
- the proportion of the adhesive in the molded body is 25% by weight.
- the molded body also has a coating of cold glue.
- the shaped body serves in particular as a plug-in underlay for plant parts. Alternatively, this molded body is also intended to serve as a heat and sound-insulating building board. However, the sound-absorbing effect of this molded body should only be moderate.
- the present invention has for its object to provide an acoustically effective component for motor vehicles which, in addition to a high sound-absorbing effect, also has a high temperature resistance and a high resilience when pressurized.
- the component should have a relatively low weight and be inexpensive to manufacture.
- the sound absorber according to the invention consists of a porous molded part made of cork particles and heat-reactive binder, which is open-pored, the proportion of the binder in the molded part being a maximum of 1 to 20% by weight.
- the material cork gives the sound absorber a high temperature resistance, which is significantly higher than
- Cork for many plastics, in particular higher than for sound absorbers made of EPP (expanded polypropylene).
- Cork also has excellent resilience. This is particularly advantageous with regard to stone chips if the sound absorber according to the invention is designed, for example, in the form of a wheel house lining.
- cork particles are inexpensive to obtain as a renewable raw material and enable waste-free production of components of the type of interest here.
- Cork generally has acoustically active pores, in particular micropores.
- the cork particles and the heat-reactive binder are selected and dimensioned such that the molded body formed from them is open-pored and coarse-pored. This achieves a high sound-absorbing effect.
- the proportion of the binder in the molded part can preferably be only 1 to 10% by weight, and in particular only 1 to 5% by weight.
- the invention is also based on the object of specifying a method for producing such a sound absorber. This object is achieved by the method having the features of claim 25.
- the process according to the invention is essentially characterized in that the cork particles with the heat-reactive binder are introduced into a cavity of a molding tool designed in the manner of an injection molding tool, the ratio of cork particles to binder being selected such that the proportion of the binder in the finished porous molding is maximal Is 1 to 20 wt .-%.
- the binding of the binding agent is preferably triggered by the binding agent
- An advantageous embodiment of the invention is that a molding tool is used which has a plurality of independently controllable suction lines, each of which communicates with the cavity of the molding tool via a suction opening, the suction openings being arranged at a distance from one another and the suction power on the suction lines each being different is set so that the cork particles are compressed to different degrees in different sections of the cavity of the molding tool.
- the finished molded part according to the invention has sections of different density and / or porosity. It is thus possible to adapt the molded part and thus the sound absorber to the respective local sound intensity distributions and frequency spectra and thus to achieve optimal sound absorption.
- a preferred embodiment of the invention provides that for the production of a molded part according to the invention, a molding tool is used which has a plurality of feed lines arranged at a distance from one another, via which cork granules can be selectively fed into the cavity of the molding tool, which granules differ in terms of their average grain size and / or differentiate grain size distribution.
- the sound absorber has at least one layer made of non-woven material, foam, heavy layer material and / or textile fabric.
- MY / sb 021338WO Layer or layers can preferably be connected to the porous molded part by the binder.
- the sound absorber according to the invention can be designed in particular as a wheel house lining, underbody lining, headlining, door interior lining, body pillar cover, engine compartment lining, bonnet lining, trunk lining, luggage compartment cover, vehicle floor interior lining, in particular as a carpet substructure, transmission tunnel lining or hat shelf.
- FIG. 5 shows a sectional view through a sound absorber according to the invention in accordance with a second exemplary embodiment
- FIG. 6 shows a sectional view through a sound absorber according to the invention in accordance with a third exemplary embodiment
- FIG. 7 shows a sectional view through a sound absorber according to the invention in accordance with a fourth exemplary embodiment
- FIG. 9 shows a sectional illustration of a sound absorber according to the invention in accordance with a sixth exemplary embodiment.
- Fig. 10 is a sectional view of a sound absorber according to the invention according to a seventh embodiment.
- the mold 1 shown in FIGS. 1 to 4 is designed in the manner of an injection molding tool and comprises a lower tool 2 and an upper tool 3 which can be raised and lowered.
- the lower tool 2 has a cavity 4 which is open on one side and can be closed by the upper tool 3.
- the underside of the upper tool 3 is provided with a shaped profile 5 which, together with the shaped profile 6 of the lower tool 2, defines the shape or contour of the shaped part 7 to be produced.
- the upper tool 3 has a feed line 8 opening in the region of its shaped profile 5, via which a molding compound can be introduced into the cavity 4 of the closed molding tool 1.
- a distributor chamber 9 is formed, which communicates with the cavity 4 of the molding tool which receives the molding compound via a plurality of channels 10 having a relatively small diameter.
- MY / sb 0 2 1338WO 1 shows the situation in which the molding tool is closed by lowering the upper tool 3.
- a molding compound 11 composed of cork granules and heat-reactive binder is introduced into the cavity 4 via the feed line 8 (FIG. 2).
- the molding compound is introduced pneumatically, for example by blowing.
- the molding compound 11 consisting of cork granulate and binder can also be sucked into the cavity 4.
- a suction fan (not shown) or the like is connected to the distribution chamber 9 of the lower tool 2.
- the cork granulate has an average grain size which is in the range from 2 to 8 mm. Good results have been achieved in particular with granulate having an average grain size in the range from 3 to 6 mm.
- the cork granules and the binder can be introduced into the mold 1 as a mixture.
- the binder is essentially dry as granules or powder. However, it is also possible to use cork particles that are at least partially coated with binder 11 before being introduced into the cavity 4 of the molding tool 1.
- the heat-reactive binder is preferably a binder based on urea, melamine or polyacrylate.
- a thermosetting binder in the form of a heat-reactive acrylic resin can be used as the binder, which can be thermoplastic molded before crosslinking.
- acrylic resin is available, for example, under the name Acrodur ® from
- the binder is preferably free of formaldehyde.
- the feed line 8 at the mouth of the cavity 4 is closed and the molding compound 11 still in the supply line 8 is at least in the area immediately adjacent to the cavity 4 removed or vacuumed.
- the distribution chamber 9 and thus the molding compound 11 located in the cavity 4 are acted upon by hot water vapor, so that the setting of the heat-reactive binder is triggered (cf. FIG. 3, in which the dark water vapor is designated by the reference number 20).
- the molding tool 1 is opened by lifting the upper tool 3 and the finished open-pore molding 7 is removed from the tool 1 (FIG. 4).
- the open-pore molded part 7 can be solidified by cooling the mold 1 and / or the molded part 7 by means of a cooling fluid, e.g. be supported with cool air.
- the proportion of the binder in the molded part 7 is at most 1 to 20% by weight. With regard to the porosity and stability of the molded part 7, good results were obtained in tests
- MY / sb 021338WO achieved with a binder content of 1 to 10 wt .-%, in particular with 1 to 5 wt .-% binder.
- the set binder is elastic. It has a temperature resistance of at least 90 ° C, preferably at least 120 ° C. In particular, a binder can be used which, when set, has a temperature resistance of approximately 180 ° C.
- the sound absorber according to the invention can basically only consist of an open-pore molded part 7 made from cork particles and heat-reactive binder.
- the porosity of the molded part 7 is relatively high. It is preferably at least 20%, in particular at least 30%.
- the average grain size and the grain size distribution of the cork particles are selected so that the finished porous molded part 7 has a length-specific flow resistance in the range of 5 kPas / m 2 and 50 kPas / m 2 .
- the grain size distribution is preferably selected such that the length-specific flow resistance of the molded part 7 is in the range from 8 kPas / m 2 and 20 kPas / m 2 .
- FIGS. 5 to 7 show three different embodiments of a sound absorber according to the invention, each of which has an open-pore molded part 7 made from cork particles and a heat-reactive binder.
- the open-pore molded part is covered on one side with a layer 12 made of heavy-layer material.
- the sound absorber which is essentially plate-shaped here, can be produced in one operation, the top layer or
- MY / sb 0 1338WO Base 12 made of heavy layer material is inserted into the cavity of a corresponding molding tool or is produced therein by injection molding.
- the top layer or base 12 is then coated by blowing and / or sucking in the molding compound consisting of cork granulate and binder.
- a layer of nonwoven, foam and / or textile fabric can optionally be coated with cork particles and binder in this way.
- the molded part 7 and the layer 12 made of non-woven material, foam, textile fabric or heavy layer material are connected to one another by the heat-reactive binder contained in the molding compound.
- the cover layer or underlay 12 can be an open-pore or gas-permeable as well as an essentially gas-tight, in particular waterproof material layer.
- the 'sound absorber shown in Fig. 6 differs from the embodiment of FIG. 5 in that 7 elevations 13 are formed on the exposed side of the open-porous molded part.
- the elevations 13 here have the shape of hemispherical knobs, which are arranged essentially in the form of a grid. It goes without saying that the elevations 13 can also be designed differently, for example in the form of pyramids, cones, cylinders, cuboids, cubes and / or webs. It is also within the scope of the invention to arrange or design the elevations 13 in different densities and / or geometrical dimensions.
- MY / sb 021338 O 14 made of nonwoven or foam.
- the nonwoven preferably contains melted fibers and / or thermoplastic fibers.
- FIG. 8 schematically shows a further embodiment of a molding tool for producing a sound absorber according to the invention.
- the molding tool 1 ' is again constructed in the manner of an injection molding tool, the upper and lowering tool 3' which can be raised and lowered here having a plurality of feed lines 8 ', 8' 'arranged at a distance from one another, via which the molding compound composed of cork granules and heat-reactive binders is selectively introduced into the cavity 4 of the molding tool __ 'can be supplied.
- the lower tool 2 ' is provided with a plurality of suction lines 15, 15', each of which communicates with the cavity 4 of the molding tool 1 'via at least one suction opening 16.
- the suction openings 16 are arranged spaced apart from one another.
- the suction lines 15, 15 ' are with electromechanical slides
- the suction power on the suction lines 15, 15 ' can be set to different heights, so that the cork particles coated with binder are compacted locally to different extents within the molding tool 1'. In this way, open-pore molded parts 7 'are produced which have sections 18, 19 of different porosity and flow resistances.
- cork particles via the feed lines 8 ′, 8 ′′, which differ in terms of their average particle size and / or particle size distribution.
- a cork granulate with a relatively small average grain size for example a cork granulate with an average grain size of 2 to 4
- a cork granulate with a larger one can be added simultaneously or temporally via the other feed lines 8' ' average grain size,.
- a cork granulate with an average grain size of 5 to 8 mm is fed.
- open-pore molded parts 7 ', 7' ' can be produced, as are shown schematically in FIGS. 8 to 10.
- the sound-absorbing molded part 7 ′′ according to FIG. 10 differs from the porous molded part 7 ′ according to FIG. 9 by the presence of a cover layer 12 made of porous non-woven material or foam.
- the top layer 12 can be placed in the mold 1 'and blown or coated with the molding compound composed of cork particles and heat-reactive binders.
- the reference numerals 18 and 19 in FIGS. 9 and 10 identify sections or regions which have different grain size distributions and thus different porosities.
- the sound absorber according to the invention is intended in particular as a sound-absorbing component for installation in motor vehicles. Due to its high temperature resistance, it can be used, for example, as a gear cover or as
- the sound absorber according to the invention is also suitable for other fields of application in motor vehicles, for example it can also be designed as an engine cover, hood insulation, underbody paneling, carpet substructure, door interior cover, roof lining, roof pillar cover, hat shelf and / or trunk lining.
- the molded part according to the invention can preferably have a waterproof, but sound-permeable coating and / or be equipped with a hydrophobic impregnating agent, which in particular can be mixed with the binder.
- a thin plastic or aluminum foil can be used as the waterproof coating.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Mechanical Engineering (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Laminated Bodies (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Building Environments (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04714319A EP1625570A1 (de) | 2003-04-17 | 2004-02-25 | Aus korkpartikeln und w ärmeraktivem bindemittel gebildeter poröser schallabsorber und verfahren zu dessen herstellung |
| MXPA05010933A MXPA05010933A (es) | 2003-04-17 | 2004-02-25 | Absorvedor de sonido poroso constituido de particulas de corcho y agente de ligadura termicamente reactivo, y metodo para su produccion. |
| US10/553,484 US20060118355A1 (en) | 2003-04-17 | 2004-02-25 | Pourous sound absorber formed from cork particles and thermally reactive binding agent, and method for the production thereof |
| JP2006504469A JP2006523567A (ja) | 2003-04-17 | 2004-02-25 | コルク粒子と熱反応性結合剤とから形成された多孔質吸音材およびその製造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10318136A DE10318136B3 (de) | 2003-04-17 | 2003-04-17 | Aus Korkpartikeln und wärmereaktivem Bindemittel gebildeter poröser Schallabsorber und Verfahren zu dessen Herstellung |
| DE10318136.9 | 2003-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004093055A1 true WO2004093055A1 (de) | 2004-10-28 |
Family
ID=32946392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2004/001859 Ceased WO2004093055A1 (de) | 2003-04-17 | 2004-02-25 | Aus korkpartikeln und wärmeraktivem bindemittel gebildeter poröser schallabsorber und verfahren zu dessen herstellung |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20060118355A1 (de) |
| EP (1) | EP1625570A1 (de) |
| JP (1) | JP2006523567A (de) |
| CN (1) | CN1809870A (de) |
| DE (1) | DE10318136B3 (de) |
| MX (1) | MXPA05010933A (de) |
| WO (1) | WO2004093055A1 (de) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7513082B2 (en) * | 2004-02-09 | 2009-04-07 | Lahnie Johnson | Sound reducing system |
| US7770691B2 (en) * | 2004-08-18 | 2010-08-10 | Schabel Polymer Technology, Llc | Lightweight pelletized materials |
| WO2007032623A1 (en) * | 2005-09-15 | 2007-03-22 | Lg Chem, Ltd. | Heating floor system |
| DE102006009134B4 (de) | 2006-02-24 | 2016-03-24 | Bayer Materialscience Aktiengesellschaft | Verbessertes Verfahren zur Herstellung einer leichten, schallisolierenden Verkleidung für Kraftfahrzeuge und entsprechende Verkleidung |
| DE102006018090B3 (de) * | 2006-04-18 | 2007-08-30 | Carcoustics Techconsult Gmbh | Motorhaubenverkleidung |
| DE102007020832B4 (de) * | 2007-05-02 | 2009-02-26 | Bayer Materialscience Ag | Leichte, schallisolierende Verkleidung für ein Karosserieteil eines Kraftfahrzeuges und Verfahren zu deren Herstellung |
| US7712579B2 (en) * | 2007-09-06 | 2010-05-11 | Toyota Boshoku Kabushiki Kaisha | Floor silencer |
| TWI408169B (zh) * | 2009-04-10 | 2013-09-11 | Saint Gobain Performance Plast | 聲阻尼組合物 |
| US9637913B2 (en) * | 2009-04-10 | 2017-05-02 | Saint-Gobain Performance Plastics Corporation | Acoustic damping compositions having elastomeric particulate |
| ES2519597T3 (es) * | 2010-04-12 | 2014-11-07 | Basf Se | Materiales compuestos de fibras, especialmente para construcciones de techos interiores de automóviles |
| US20110250807A1 (en) * | 2010-04-12 | 2011-10-13 | Basf Se | Fiber composite materials of construction, particularly for roof liner structures |
| DE102010035431A1 (de) * | 2010-08-26 | 2012-03-01 | Entwicklungsgesellschaft für Akustik (EfA) mit beschränkter Haftung | Breitbandiger Schallabsorber |
| FR2979572B1 (fr) * | 2011-09-06 | 2013-10-04 | Cera | Procede de realisation d'une piece tridimensionnelle de garnissage de vehicule automobile |
| US9222254B2 (en) | 2012-03-13 | 2015-12-29 | Schabel Polymer Technology, Llc | Structural assembly insulation |
| AT514179A1 (de) * | 2013-03-25 | 2014-10-15 | Organoid Technologies Og | Akustisches Paneel |
| FR3033733B1 (fr) * | 2015-03-19 | 2017-04-28 | Cera Aps | Element thermoforme de protection acoustique pour vehicule automobile |
| CN106738975A (zh) * | 2016-11-15 | 2017-05-31 | 允圣贸易(上海)有限公司 | 透气弹性体结构及其制备方法 |
| EP3570274A1 (de) * | 2018-05-16 | 2019-11-20 | Igor Emri | Schalldämmelement |
| KR101961677B1 (ko) * | 2018-08-29 | 2019-03-25 | 하원태 | 시트형 피복 코르크가 결합된 신발창 또는 인솔 및 그 제조 방법 |
| EP3747739B1 (de) * | 2019-06-07 | 2025-12-17 | Zephyros Inc. | Universelles hochexpandierbares füllorgan |
| DE202019004661U1 (de) * | 2019-11-13 | 2020-01-30 | Logistics Arts Production Gmbh | Ladungsträger |
| CN111789968B (zh) * | 2020-06-21 | 2021-10-29 | 老肯医疗科技股份有限公司 | 一种具有消音功能的蒸汽排放水箱 |
| WO2022053976A1 (en) * | 2020-09-11 | 2022-03-17 | 3M Innovative Properties Company | Acoustic absorbing filler and related acoustic article |
| CN116409019A (zh) * | 2021-12-31 | 2023-07-11 | 中国科学院理化技术研究所 | 一种孔隙率渐变型多孔材料及其制备方法和应用 |
| DE102024120615A1 (de) * | 2024-07-19 | 2026-01-22 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Herstellung eines Kraftfahrzeuginnenbauteils sowie ein Kraftfahrzeuginnenbauteil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1387322A (fr) * | 1963-12-20 | 1965-01-29 | Procédé de fabrication d'un matériau isolant | |
| US3549472A (en) * | 1965-09-29 | 1970-12-22 | Cushioned Products Corp | Cork and foam product |
| DE2242549A1 (de) * | 1972-08-30 | 1974-03-07 | Hermann Honer | Raum- oder flaechengebilde aus korkteilchen und verfahren zu seiner herstellung |
| CA2078935A1 (en) * | 1992-09-23 | 1994-03-24 | Dirk H. Damberg | Process for production of formed parts of polymer adhesives and particles |
| FR2733933A1 (fr) * | 1995-05-11 | 1996-11-15 | Sommer Ind | Procede d'obtention d'une piece insonorisante et piece injectee selon un tel procede |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3821135A (en) * | 1965-09-29 | 1974-06-28 | Cushioned Prod Corp | Granular cork-polyurethane composition and products thereof |
| DE3730208A1 (de) * | 1987-05-21 | 1988-12-01 | Bervar Barbara | Verfahren zur herstellung eines poroesen formkoerpers sowie poroeser formkoerper |
| AT395738B (de) * | 1989-06-19 | 1993-02-25 | Porr Allg Bauges | Oberbau mit schienen und verfahren zur herstellung desselben |
| DE29707933U1 (de) * | 1997-05-02 | 1997-07-24 | Richter, Gotthold, 08297 Zwönitz | Bauelement zur Aufnahme von Körper- und Luftschall |
-
2003
- 2003-04-17 DE DE10318136A patent/DE10318136B3/de not_active Expired - Fee Related
-
2004
- 2004-02-25 WO PCT/EP2004/001859 patent/WO2004093055A1/de not_active Ceased
- 2004-02-25 US US10/553,484 patent/US20060118355A1/en not_active Abandoned
- 2004-02-25 MX MXPA05010933A patent/MXPA05010933A/es not_active Application Discontinuation
- 2004-02-25 EP EP04714319A patent/EP1625570A1/de not_active Withdrawn
- 2004-02-25 CN CNA2004800103873A patent/CN1809870A/zh active Pending
- 2004-02-25 JP JP2006504469A patent/JP2006523567A/ja active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1387322A (fr) * | 1963-12-20 | 1965-01-29 | Procédé de fabrication d'un matériau isolant | |
| US3549472A (en) * | 1965-09-29 | 1970-12-22 | Cushioned Products Corp | Cork and foam product |
| DE2242549A1 (de) * | 1972-08-30 | 1974-03-07 | Hermann Honer | Raum- oder flaechengebilde aus korkteilchen und verfahren zu seiner herstellung |
| CA2078935A1 (en) * | 1992-09-23 | 1994-03-24 | Dirk H. Damberg | Process for production of formed parts of polymer adhesives and particles |
| FR2733933A1 (fr) * | 1995-05-11 | 1996-11-15 | Sommer Ind | Procede d'obtention d'une piece insonorisante et piece injectee selon un tel procede |
Also Published As
| Publication number | Publication date |
|---|---|
| MXPA05010933A (es) | 2005-11-25 |
| US20060118355A1 (en) | 2006-06-08 |
| EP1625570A1 (de) | 2006-02-15 |
| DE10318136B3 (de) | 2004-10-07 |
| JP2006523567A (ja) | 2006-10-19 |
| CN1809870A (zh) | 2006-07-26 |
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