EP1180186B1 - Matériau polymère en feuille souple pour structures tendues, procédé de réalisation de ce matériau et faux-plafond comprenant ce matériau - Google Patents
Matériau polymère en feuille souple pour structures tendues, procédé de réalisation de ce matériau et faux-plafond comprenant ce matériau Download PDFInfo
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- EP1180186B1 EP1180186B1 EP00910999A EP00910999A EP1180186B1 EP 1180186 B1 EP1180186 B1 EP 1180186B1 EP 00910999 A EP00910999 A EP 00910999A EP 00910999 A EP00910999 A EP 00910999A EP 1180186 B1 EP1180186 B1 EP 1180186B1
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- perforations
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Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/002—Coverings or linings, e.g. for walls or ceilings made of webs, e.g. of fabrics, or wallpaper, used as coverings or linings
- E04F13/005—Stretched foil- or web-like elements attached with edge gripping devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
- B26D7/14—Means for treating work or cutting member to facilitate cutting by tensioning the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/24—Perforating by needles or pins
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/8409—Sound-absorbing elements sheet-shaped
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/30—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by edge details of the ceiling; e.g. securing to an adjacent wall
- E04B9/303—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by edge details of the ceiling; e.g. securing to an adjacent wall for flexible tensioned membranes
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8414—Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
- E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
- E04B2001/8495—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element the openings going through from one face to the other face of the element
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
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- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
- Y10T428/24281—Struck out portion type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
- Y10T83/0481—Puncturing
Definitions
- the invention relates to the technical field of sheet materials relatively thin, typically less than half a millimeter, used for the realization of under ceilings, false ceilings, false walls, wall coatings, by energizing these sheet materials.
- the materials known in the prior art for making false stretched ceilings or false stretched walls are most often materials polymers with many qualities such as: resistance fire, airtightness, dust, moisture, ease maintenance.
- False ceilings obtained using such materials may incorporate thermal insulators, various spots or lighting, as well as ventilation or ventilation openings or sprinklers. Removable, they allow, if necessary, an intervention in the plenum.
- Polymeric materials for stretch ceilings known in the art previous, translucent or opaque, tinted or unstained, matt, lacquered, marbled, suede or satin, can thus be used both in the middle in hospitals, for public facilities, laboratories or dwellings.
- the lacquered finish allows a mirror effect often implemented in malls, a matte finish quite close to a plaster aspect being more usual to traditional decorations.
- soundproofing panels include a perforated metal or plastic plate attached to a support of mineral wool type or polyurethane foam.
- This first Passive sound absorption technique using fibrous or porous materials can refer, for example, to the following documents: EP-A-013 513, EP-A-023 618, EP-A-246,464, EP-A-524,566, EP-A-605,784, EP-A-652,331, FR-A-2 405 818, FR-A-2 536 444, FR-A-2 544 358, FR-A-2 549 112, FR-A-2 611 776, FR-A-2,611,777, FR-A-2,732,381, US-A-4,441,580, US-A-3,948,347.
- the panels forming the walls such that for example suspended ceilings are provided with cavities whose volume is calculated to tune them on certain frequency ranges, these cavities being protected by a porous facing.
- Helmholtz resonators using Helmholtz resonators, one can see, for example, DE-PS-36 43 481, FR-A-2 463 235.
- the apparent surface of the ceiling panels is embossed or provided with grooves or deep cavities.
- honeycomb webs form absorbent membranes. This technique, expensive, is sometimes used in the recording studios.
- US 3,782,495 discloses false ceilings acoustic slabs suspended comprising a metal foil or perforated plastic with removal of material, sheet stuck on a frame below a block sound insulating glass wool, the plastic sheet being able to be felted, coated, printed, dyed or colored to achieve a decorative effect.
- EP 0 816 583 discloses a device for reducing the levels acoustics in buildings, with attenuation elements acoustically formed of several sheets located at a distance from one another and parallel to each other, suspended vertically, these sheets being rigid polymeric material such as polycarbonate or polyethylene, these sheets can be wound on a storage cylinder.
- the document EP 0 399 935 describes an air distribution device, for heating, ventilation or air-conditioning purposes, the walls of the air distribution network being constituted by false ceilings made of stretched fabric at least partly permeable to the air for a pressure drop of about 1Pa for a nominal flow rate of 10 m 3 per hour per m 2 of permeable surface.
- Document DE 197 54 107C describes acoustic panels in polyester or metal such as steel or aluminum, placed parallel to each other others in suspension.
- a first object of the invention is to provide a flexible polymeric material, sheet, suitable for use in taut decorative structures, masking or display, such as in particular false ceilings, false walls, this material with greatly improved acoustic properties.
- a second object of the invention is to provide a material such as this above, whose visual aspect remains perfectly adapted to its use, both in an industrial environment than in a hospital environment for equipment collective or modern or historic dwellings.
- the invention relates, in a first aspect, to a polymeric material of flexible sheet, less than half a millimeter thick, for realization of tensile structures such as in particular false ceilings, this material having micro-reliefs extending from a height of a few microns to 100 microns and formed by embossing the material constituent of the material which thus has an acoustic absorption coefficient higher than the same material devoid of said reliefs.
- the invention relates to a method of making a sheet of material as presented above, this method comprising a needling step, locally repelling the material constitutive of the sheet until its micro perforation, in a pattern predetermined.
- the needling step is carried out without the sheet being subjected to removal of material.
- the needles used in the process needling have an extreme diameter of less than one tenth of a millimeter, example of the order of four hundredths of a millimeter.
- the needling step is conducted while the sheet of material is placed under a voltage of the order of that of its end use in a tense structure.
- the invention relates, in a third aspect, to a false ceiling, characterized in that it comprises a sheet of a material as presented herein above, energized relative to support means.
- FIG. 1a is a front view of a material 1 of thickness of the order one-tenth of a millimeter, provided with substantially identical micro-reliefs 2 regularly distributed on a network with square mesh.
- Figure 1b is shown in greatly enlarged view the shape of these reliefs 2, when seen in perpendicular to the plane of figure 1.
- the dimensions of the micro reliefs are such that they appear almost punctual in Figure 1.
- These reliefs 2 are present, in the embodiment considered here, in the form of cups substantially of revolution shape around an axis 3 perpendicular to the middle plane of the sheet of material 1 laid flat.
- These reliefs extend over a shallow height h, of the order of a few microns to a few tens of microns, and have an apparent aperture of the order of two tenths of a millimeter.
- these micro reliefs are provided a bottom wall 4 with a hole.
- These through holes 19 are derived, in a particular embodiment, needling with needles whose tips have a diameter of the order of a few hundredths of a millimeter, for example 4 hundredths of a millimeter.
- this needling is performed while the sheet of material 1 is energized.
- This tension is, in one embodiment particular, of the order of that suffered by the leaf at its place of use, by example in a suspended false ceiling.
- the holes through 19, of diameter of the order of a few hundredths millimeters, are obtained without removal of material.
- the bottom wall 4 of the micro-perforated reliefs 2 is connected to the edge of the cups by an annular wall 5 of revolution about the axis 3.
- this wall 5 may have a thickness e5 less than that e1 measured between the reliefs for the sheet of material 1. This difference thickness will be even more marked than the height h micro-reliefs 2 is important, given thickness e1.
- the annular wall 5 is discontinuous.
- the bottom wall of at least a portion of the micro reliefs can be substantially full, that is to say devoid of through hole.
- the reliefs are not all identical, two or more populations of landforms that can be distinguished, these reliefs being of different shapes.
- the reliefs are not all substantially punctually, but extend along at least one direction to form micro grooves and micro grooves.
- all the reliefs are not symmetrical to revolution with respect to an axis substantially perpendicular to the mean plane of the sheet of material 1.
- the bowl bottoms when seen in plan, can be square, rectangular, oval, shaped like a regular polygon or not.
- the mesh of the network of micro-reliefs is square, in the embodiment of In other embodiments, this mesh is not square. but rectangular.
- At least two micro-relief networks, of mesh and / or not p1, p2, p'2 different are arranged on the sheet of material 1, as shown in Figure 1c.
- micro-reliefs perforated micro-reliefs especially all at once effective in terms of acoustics and almost undetectable to the look. While keeping a conventional aspect of stretched canvas, clearly demarcating perforated suspended ceilings or mesh, the invention makes it possible in particular to achieve acoustic properties similar to suspended noise ceilings.
- the sheet is provided with micro-reliefs but is not perforated or micro-perforated.
- micro-reliefs without perforations, allows to improve the properties acoustic properties of the material without affecting its barrier properties fluids. Compared to perforated sheets, any traces of passage such as dark markings can also be avoided. Similarly, perforations with irregular edges obtained when the perforation tool is worn can be avoided.
- the material is also easily washable.
- micro-perforations 19 do not alter substantially its visual appearance.
- the inventors have notably found that the production of micro-perforations 19 as represented in FIG. 1b is almost undetectable when combined with a matte finish for the visible side 20 of the material sheet 1.
- the improved acoustic properties for the material prevent the introduction of fibrous insulation, which can generate dust and microfibers whose impact on health could be discussed.
- the sound waves are derived from the propagation of pressure variations in the elastic media, by wave fronts, at a rate depending in the solids, of the modulus of elasticity and the density of the solid (of the order of 500 m / s in a cork and 3100 m / s in a common concrete for example).
- the spectrum audible by the human ear is formed by the frequencies of the vibrations of the sounds between 16 Hertz and 20 000 Hertz, when these sounds are emitted beyond a certain acoustic pressure (threshold of audibility equal to four phones).
- the frequency domain of the speech is between 10 and 10 kHz approximately, understandable speech being focused on frequencies between 300 Hz and 3 kHz.
- the domain of musical frequencies is between about 16Hz and 16kHz, an octave corresponding to a doubling of frequency.
- Instrument or voice Low frequency (Hz) High frequency (Hz) Violin 200 3000 Piano 30 4000 Flute 250 2500 Cello 70 800 Bass 40 300 Tuba 50 400 Trumpet 200 1000 Organ 16 1600 Low 100 350 Baritone 150 400 Tenor 150 500 Alto 200 800 Soprano 250 1200
- an absorption index of sounds ⁇ (without units) is defined, this index ⁇ being the normalized difference of the incident and reflected acoustic energy. This index depends on the frequency of the incident sounds. As the sound attenuation in air is a function of temperature, pressure and relative humidity, the measurements of the absorption index must be carried out at known temperature, pressure and humidity (see French standard NF S 30,009). With regard to the measurement standards of this index, reference may be made, for example, to the following documents: international standard ISO 354, French standard NF EN 20354, NF S 31 065, standard ASTM C423 of the United States of America. The table below gives some values of this sound absorption index ⁇ .
- the echo or reverberation due to the reflection of sounds on an obstacle generates interference that can greatly increase the noise level in a local and make conversations difficult to follow.
- a reverberation time T 0.163 V / ⁇ A where V is the volume of the free space; A is the absorbent surface; ⁇ is the absorption index defined above.
- the sheets of material, of dimensions 9'x8 ' were fixed on the surface of a parallelepiped box of glass wool, with a thickness of wall 3/4 ', dimensions 9'x8'x4', the box being placed on a plate in corrugated steel.
- the leaves called “perforated NLM41” are of the type of those sold by the Applicant under the reference NewLine NLM41. These sheets are provided with large perforations (holes diameter of four millimeters), obtained by removal of material, the hole density being less than one per square centimeter. These circular holes are intended to allow ventilation of the plenum and a possible smoke extraction: this range of NLM41 products is classified M1 / B1 / Fire 1.
- the sheets called “perforated NL601” are of the type of those sold by the applicant under the reference NewLine NL601. These leaves are also provided with large perforations (holes circular diameter of one millimeter), perforations obtained by removal of matter. These circular holes are intended, just like those of the leaves NLM41, to allow ventilation of the plenum and possible smoke extraction, this range of NL601 products being classified M1 / B1 / Fire 1.
- curves 1b and 2b shows the impact of the implementation instead of conventional fibrous sound insulation, as can be done in the plenum.
- the leaves of stretched materials are likely to vibrate and are therefore not rigid and indeformable, in addition the thicknesses h are very small compared to phonic insulating panels, so that the model presented above does not can be used.
- Other models known in the field of acoustics, aim at predicting the behavior of perforated diaphragm panels, account of the proper stiffness of the panel and the compression of the air in the back of the panel, as well as its flow through the perforations, which can play a dissipative role.
- Curves 5, 6 and 7 illustrate the impact of setting up a acoustic spray coating on stretched sheets. The effect of this coating is especially marked in high frequencies.
- the placement of insulation fibrous (tests 2b, 8, 8b) or the placement of an acoustic coating in spray (tests 7 and 9) gives, for frequencies above 400 Hz, results lower than those obtained with perforated sheets with or without acoustic coating spray.
- the attenuation properties acoustics had a great dissymmetry between low frequencies and high.
- micro-reliefs and micro perforations led to results as favorable as the making large perforations.
- results obtained with micro-perforations are even better in the field of high frequencies, compared to those obtained by large perforations.
- micro-perforated is meant here, with reference to tests 12, 13 and 14, a sheet of PVC material of 17 hundredths of a millimeter of thickness, provided with micro perforations formed by needling, without removal of material, the needles used having an end diameter of the order of 4 hundredths of a millimeter, the density of micro perforations obtained being of the order of three per square centimeter, the perforations being distributed over a mesh as shown in FIG. 1a.
- the sheet was stretched on the upper face of a parallelepiped box unpainted wall glass fiber thickness of 3/4 ", with a volume equal to 10154.72 cu.ft.
- the T60 values correspond to the average reverberation times
- the Acoustic Absorption Coefficient (CAA) and the accuracies The values of NRC and AAC were obtained according to ASTM C423, while for test 12 a 6 "thick layer of polyester wool was obtained in accordance with ASTM C423-90a.
- Tests carried out for the first and second series mentioned above implemented an acoustic chamber with fiber walls of glass, which does not correspond to the actual layout of stretch ceilings.
- the support frame of smooth PVC panels is made of metal tubes height 4 "and nominal thickness 1-1 / 2".
- This frame is fixed from the outside on the base wall of the chamber of reverberation.
- the total weight of this fiberglass panel is 0.49 psf, the PVC tape weighing 0.05 psf.
- the support frame of smooth PVC panels is made of metal tubes height 4 "and nominal thickness 1-1 / 2".
- This frame is fixed from the outside on the base wall of the chamber of reverberation.
- the total weight of this fiberglass board is 0.25 psf, the PVC tape weighing 0.05 psf.
- NRC values obtained for these AB and C tests are specified below in Table VI. NRC values obtained for tests AB and C. Test A Test B Test C NRC Medium 0.65 0633 0455 NRC 0.65 0.65 0.45
- the histograms of Figures 8, 9 and 10 represent the evolutions sound absorption coefficients for frequencies between 100 and 5000 Hertz, for tests A, B and C.
- Flexible polymeric sheet material with acoustic properties improved which has just been described is suitable to be used for structures tense decoration or masking such as in particular false ceilings, false walls.
- This material can also be used for panels display, fixed or scroll type, the attenuation of the reverb to reduce the noise nuisance generated by these panels.
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Description
- la hauteur des micro-reliefs, mesurée suivant une direction perpendiculaire au plan de ladite feuille au droit de ces micro-reliefs est inférieure à trois fois l'épaisseur de ladite feuille ;
- ses micro-reliefs forment des saillies sur une seule face de ladite feuille ;
- chacun de ses micro-reliefs est disposé suivant tes noeuds d'un motif régulier ;
- tous ses micro-reliefs sont disposés suivant les noeuds d'un seul motif, par exemple à maille carrée ;
- ses micro-reliefs forment des saillies sur les deux faces de ladite feuille, chacun de ses micro-reliefs étant disposé suivant les noeuds d'un motif régulier, tous ses micro-reliefs étant le cas échéant disposés suivant les noeuds d'un seul motif, par exemple à maille carrée ;
- ses micro-reliefs se présentent sous la forme de cuvettes dont le fond sensiblement plan est relié à l'ouverture par une bande de matériau d'épaisseur inférieure ou égale à celle des parties de la feuille séparant les micro-reliefs ;
- ses cuvettes sont de symétrie de révolution par rapport à un axe sensiblement perpendiculaire à leur paroi de fond ;
- la bande de matériau reliant la paroi de fond des cuvettes et leur ouverture est discontinue ;
- le matériau est pourvu de micro perforations, d'ouverture inférieure à quatre dixièmes de millimètre, au moins une partie des micro-reliefs étant pourvue desdites perforations, lesdites micro perforations étant le cas échéant également disposées entre les micro-reliefs ;
- les micro perforations sont disposées suivant les noeuds d'un motif ;
- les micro perforations sont disposées suivant les noeuds d'un motif identique à celui des micro-reliefs et décalé par rapport à celui ci ;
- les micro perforations sont obtenues par aiguilletage ou tout autre procédé équivalent ;
- les micro perforations sont obtenues sans enlèvement de matière ;
- le matériau est choisi parmi le groupe comprenant les chlorures de polyvinyle plastifiés, chlorure de vinylidène et copolymères chlorure de vinyle / chlorure de vinylidène ;
- la surface occupée par les micro-reliefs est comprise entre 0,5% et 10% de la surface de ladite feuille ;
- la densité de micro-reliefs et/ou de micro-perforations est comprise entre 2 et 60 par centimètre carré, de préférence 15 à 35 par centimètre carré, et plus particulièrement entre 20 et 30 par centimètre carré.
- les figures 1a, 1b et 1c illustrent différents modes de réalisations d'un matériau pour toile tendue selon l'invention ;
- la figure 2 est un graphe représentant les valeurs de coefficient d'absorption acoustique mesurées, en fonction de la fréquence moyenne tiers d'octave dans quatre conditions expérimentales 1b,2b,3 et 4, ainsi que pour un échantillon de référence étalon ;
- la figure 3 est un graphe analogue à celui de la figure 2, pour les conditions expérimentales 5, 6 et 7 ;
- la figure 4 est un graphe analogue à celui de la figure 3, pour les conditions expérimentales 8, 8b, 9, les résultats obtenus pour les conditions 1b, 2b étant reportées sur le graphe de cette figure 4 afin de comparaison ;
- la figure 5 est un graphe analogue à celui de la figure 2, pour la condition expérimentale 10, les résultats obtenus pour les essais 3, 6 étant reportés sur ce graphe de la figure 5, afin de comparaison ;
- la figure 6 est un graphe analogue à celui de la figure 2, pour la condition expérimentale 11, les résultats obtenus pour les conditions 4 et 5 étant reportés sur ce graphe de la figure 6, afin de comparaison ;
- la figure 7 est un graphe analogue à celui de la figure 2, pour les conditions expérimentales 12, 13 et 14 ;
- la figure 8 est un histogramme des valeurs de coefficient d'absorption sonore en fonction de la valeur de fréquence tiers d'octave, pour les conditions expérimentales A ;
- la figure 9 est un histogramme analogue à celui de la figure 8, pour les conditions expérimentales B ;
- la figure 10 est un histogramme analogue à celui de la figure 8, pour les conditions expérimentales C.
- pas p entre les micro-reliefs : 1 mm ;
- densité de micro-reliefs, par centimètre carré : 25 ;
- hauteur des reliefs : de quelques microns à 100 microns.
Instrument ou voix | Fréquence basse (Hz) | Fréquence haute (Hz) |
Violon | 200 | 3000 |
Piano | 30 | 4000 |
Flûte | 250 | 2500 |
Violoncelle | 70 | 800 |
Contrebasse | 40 | 300 |
Tuba | 50 | 400 |
Trompette | 200 | 1000 |
Orgue | 16 | 1600 |
Basse | 100 | 350 |
Baryton | 150 | 400 |
Ténor | 150 | 500 |
Alto | 200 | 800 |
Soprano | 250 | 1200 |
- les matériaux poreux rigides, tels que bétons poreux et mousses rigides, dans lesquels les réseaux de capillaires forment résistance acoustiques ;
- les matériaux poreux élastiques tels que laines minérales, feutres, polystyrènes, dans lesquels l'énergie acoustique est dissipée par friction solide ;
- les matériaux à résonance acoustique, agissant selon le principe des résonateurs d'Helmholtz, tels que panneaux perforés ;
- les matériaux à résonance mécanique, fonctionnant sur la base de l'oscillateur amorti.
α pour 125 Hz | α pour 500 Hz | α pour 2000 Hz | |
Crépi sur maçonnerie | 0.02 | 0.02 | 0.03 |
Crépi à la chaux | 0.03 | 0.03 | 0.04 |
Béton léger | 0.07 | 0.22 | 0.10 |
Mortier | 0.03 | 0.03 | 0.07 |
Plaque acoustique d'épaisseur 2.5 cm | |||
avec 3 cm d'air | 0.25 | 0.23 | 0.74 |
appriqué sur un mur | 0.15 | 0.23 | 0.73 |
Panneaux isolants d'épaisseur 2 cm | |||
appliqué sur un mur | 0.13 | 0.19 | 0.24 |
avec 3 cm d'air | 0.15 | 0.23 | 0.23 |
avec 3 cm de laine de verre | 0.33 | 0.44 | 0.37 |
porte en bois | 0.14 | 0.06 | 0.10 |
Parquet | 0.05 | 0.06 | 0.10 |
contreplaqué 3mm air 2cm | 0.07 | 0.22 | 0.10 |
contreplaqué 3 mm sur un mur | 0.07 | 0.05 | 0.10 |
Première série d'essais | ||||||||||||
Fréquences (Hz) | Test 1b | Test 2b | Test 3 | Test 4 | Test 5 | Test 6 | Test 7 | Test 8 | Test 9 | Test 10 | Test 11 | Test 8b |
125 | 0.43 | 0.71 | 0.77 | 0.77 | 0.37 | 0.43 | 0.47 | 0.80 | 0.46 | 0.33 | 0.42 | 0.90 |
160 | 0.31 | 0.70 | 0.68 | 0.60 | 0.43 | 0.45 | 0.49 | 0.97 | 0.59 | 0.61 | 0.59 | 1.01 |
200 | 0.18 | 0.69 | 0.69 | 0.66 | 0.41 | 0.41 | 0.40 | 0.89 | 0.42 | 0.49 | 0.55 | 0.93 |
250 | 0.21 | 0.63 | 0.73 | 0.72 | 0.49 | 0.51 | 0.43 | 0.88 | 0.51 | 0.63 | 0.61 | 0.97 |
315 | 0.29 | 0.79 | 0.87 | 0.88 | 0.68 | 0.73 | 0.65 | 0.90 | 0.70 | 0.79 | 0.75 | 0.94 |
400 | 0.39 | 0.87 | 1.00 | 1.03 | 0.81 | 0.83 | 0.70 | 0.82 | 0.76 | 0.83 | 0.83 | 0.76 |
500 | 0.41 | 0.82 | 1.02 | 1.03 | 0.82 | 0.85 | 0.70 | 0.75 | 0.74 | 0.92 | 0.93 | 0.69 |
630 | 0.39 | 0.73 | 0.98 | 0.99 | 0.87 | 0.87 | 0.68 | 0.69 | 0.69 | 0.91 | 0.90 | 0.65 |
800 | 0.37 | 0.69 | 1.00 | 1.00 | 0.93 | 0.93 | 0.67 | 0.68 | 0.68 | 0.94 | 0.93 | 0.67 |
1000 | 0.34 | 0.61 | 1.01 | 1.00 | 0.97 | 0.99 | 0.61 | 0.63 | 0.60 | 0.95 | 0.93 | 0.67 |
1250 | 0.35 | 0.58 | 1.06 | 1.06 | 1.02 | 1.04 | 0.59 | 0.61 | 0.57 | 1.01 | 1.00 | 0.62 |
1600 | 0.37 | 0.56 | 1.09 | 1.09 | 1.05 | 1.07 | 0.54 | 0.57 | 0.53 | 1.02 | 1.00 | 0.59 |
2000 | 0.35 | 0.48 | 1.08 | 1.04 | 1.07 | 1.07 | 0.50 | 0.50 | 0.44 | 0.97 | 0.97 | 0.52 |
2500 | 0.34 | 0.43 | 1.07 | 1.01 | 1.07 | 1.07 | 0.44 | 0.43 | 0.34 | 0.91 | 0.88 | 0.49 |
3150 | 0.30 | 0.36 | 1.01 | 0.91 | 1.01 | 1.01 | 0.38 | 0.36 | 0.24 | 0.76 | 0.70 | 0.45 |
4000 | 0.27 | 0.32 | 0.93 | 0.78 | 0.97 | 0.98 | 0.37 | 0.33 | 0.10 | 0.57 | 0.46 | 0.43 |
CAA | 0.35 | 0.65 | 0.95 | 0.95 | 0.85 | 0.85 | 0.55 | 0.70 | 0.55 | 0.85 | 0.85 | 0.70 |
Conditions expérimentales pour la première série d'essais | ||||
Numéro du test | Type de feuille | support | Revêtement Sona Spray Acoustical Finish de la société K13 Spray-On Systems | Fibre de verre de la société Owens Coming sur plaque acier |
1b | Lisse | Plaque acier | Non | Non |
2b | Lisse | Plaque acier | Non | 6" R19 |
3 | Perforée NLM41 | Plaque acier | Non | 6" R19 |
4 | Perforée NL601 | Plaque acier | Non | 6" R19 |
5 | Perforée NL601 | Plaque acier | 1" | Non |
6 | Perforée NLM41 | Plaque acier | 1" | Non |
7 | Lisse | Plaque acier | 1" | Non |
8 | Lisse | - | Non | 6" R19, à 3" de la feuille |
8b | Lisse | - | Non | 3-7/8" RA24 (1.5 #) à 5.75"de la feuille |
9 | Lisse | Plaque acier | 2,25" | Non |
10 | Perforée NLM41 | Plaque acier | 2,25" | Non |
11 | Perforée NL601 | Plaque acier | 2,25" | Non |
- la figure 2 donne les résultats pour les essais 1b, 2b, 3, 4, par rapport à cinq valeurs obtenues pour un étalon de référence ;
- la figure 3 donne les résultats pour les essais 5, 6, 7, par rapport audit étalon de référence ;
- la figure 4 est un graphe rassemblant les résultats des essais 8, 8b et 9, comparés à ceux obtenus pour les essais 1b, 2b, et 7 ;
- la figure 5 est un graphe représentant les résultats obtenus pour l'essai 10, comparés à ceux des essais 3 et 6 ;
- la figure 6 est un graphe représentant les résultats obtenus pour l'essai 11, comparés à ceux obtenus pour les essais 4 et 5.
Essais N° 12 13 et 14. Mesures d'absorption acoustique à l'aide d'une chambre à réverbération | ||||||||||||||
Fréq. (Hz) | Chambre vide T60 (s) | Incert. % | Essai 14 T60 (s) | Incert. % | CAA | Préc. Sabins / sq.ft | Essai 13 T60 (s) | Incert % | CAA | Préc Sabins / Sq.ft | Essai 12 T60 (s) | Incert. % | CAA | Préc. Sabins / Sq.ft |
50 | 1.63 | 5 | 1.31 | 3.23 | 0.76 | 0.26 | 1.37 | 2.59 | 0.52 | 0.26 | 1.88 | 15.29 | 0.84 | 0.61 |
63 | 1.37 | 7.56 | 0.96 | 4.48 | 2.15 | 0.50 | 0.90 | 3.25 | 2.59 | 0.46 | 1.01 | 4.61 | 1.80 | 0.50 |
80 | 1.60 | 5.44 | 1.17 | 14.97 | 1.61 | 0.92 | 1.12 | 6.42 | 1.88 | 0.48 | 1.15 | 4.52 | 1.71 | 0.36 |
100 | 2.40 | 5.74 | 2.21 | 6.64 | 0.24 | 0.32 | 1.96 | 9.18 | 0.64 | 0.36 | 1.70 | 2.44 | 1.17 | 0.19 |
125 | 3.16 | 2.37 | 2.81 | 3.90 | 0.27 | 0.11 | 2.57 | 3.86 | 0.51 | 0.12 | 2.37 | 2.67 | 0.73 | 0.09 |
160 | 3.56 | 3.22 | 3.06 | 1.99 | 0.32 | 0.08 | 2.63 | 1.95 | 0.69 | 0.08 | 2.56 | 4.01 | 0.76 | 0.13 |
200 | 4.01 | 2.53 | 3.55 | 2.31 | 0.22 | 0.06 | 2.94 | 2.38 | 0.63 | 0.07 | 2.58 | 2.07 | 0.96 | 0.07 |
250 | 5.62 | 1.34 | 4.37 | 2.16 | 0.35 | 0.04 | 3.45 | 2.53 | 0.77 | 0.05 | 3.18 | 2.06 | 0.94 | 0.05 |
315 | 6.67 | 1.77 | 5.02 | 1.43 | 0.34 | 0.03 | 3.81 | 1.58 | 0.78 | 0.03 | 3.54 | 1.19 | 0.91 | 0.03 |
400 | 6.25 | 0.90 | 4.53 | 1.65 | 0.42 | 0.03 | 3.64 | 1.62 | 0.80 | 0.03 | 3.39 | 1.77 | 0.93 | 0.04 |
500 | 7.05 | 0.62 | 4.82 | 1.08 | 0.45 | 0.03 | 3.93 | 1.28 | 0.78 | 0.02 | 3.85 | 1.43 | 0.81 | 0.03 |
630 | 7.23 | 0.73 | 4.85 | 1.29 | 0.47 | 0.02 | 3.99 | 1.44 | 0.78 | 0.03 | 3.95 | 1.43 | 0.79 | 0.03 |
800 | 7.23 | 0.41 | 4.65 | 1.01 | 0.53 | 0.02 | 3.89 | 0.71 | 0.82 | 0.01 | 3.87 | 0.84 | 0.83 | 0.02 |
1000 | 7.17 | 0.45 | 4.47 | 1.06 | 0.58 | 0.02 | 3.85 | 0.59 | 0.83 | 0.01 | 3.88 | 0.93 | 0.82 | 0.02 |
1250 | 6.92 | 0.45 | 4.17 | 0.55 | 0.66 | 0.01 | 3.72 | 0.51 | 0.86 | 0.01 | 3.70 | 0.52 | 0.87 | 0.01 |
1600 | 6.25 | 0.34 | 3.83 | 0.61 | 0.70 | 0.01 | 3.50 | 0.49 | 0.87 | 0.01 | 3.49 | 0.61 | 0.88 | 0.01 |
2000 | 5.29 | 0.43 | 3.45 | 0.73 | 0.70 | 0.02 | 3.21 | 0.47 | 0.85 | 0.01 | 3.21 | 0.52 | 0.85 | 0.01 |
2500 | 4.06 | 0.49 | 2.90 | 0.41 | 0.68 | 0.01 | 2.76 | 0.42 | 0.80 | 0.01 | 2.76 | 0.59 | 0.81 | 0.02 |
3150 | 3.37 | 0.57 | 2.54 | 0.59 | 0.57 | 0.02 | 2.45 | 0.40 | 0.78 | 0.02 | 2.44 | 0.48 | 0.78 | 0.02 |
4000 | 2.80 | 0.48 | 2.23 | 0.46 | 0.63 | 0.02 | 2.17 | 0.36 | 0.72 | 0.02 | 2.17 | 0.48 | 0.72 | 0.02 |
5000 | 2.20 | 0.55 | 1.85 | 0.50 | 0.59 | 0.03 | 1.82 | 0.40 | 0.66 | 0.02 | 1.80 | 0.48 | 0.69 | 0.03 |
6300 | 1.67 | 0.38 | 1.48 | 0.44 | 0.54 | 0.03 | 1.45 | 0.39 | 0.62 | 0.02 | 1.43 | 0.44 | 0.68 | 0.03 |
8000 | 1.21 | 0.53 | 1.11 | 0.50 | 0.50 | 0.04 | 1.09 | 0.68 | 0.58 | 0.05 | 1.08 | 0.60 | 0.65 | 0.05 |
10000 | 0.89 | 0.78 | 0.83 | 0.85 | 0.51 | 0.09 | 0.83 | 0.61 | 0.58 | 0.08 | 0.82 | 0.64 | 0.70 | 0.08 |
Essais N° 12 13 et 14, valeurs NRC et AAC obtenues | ||
NRC | AAC | |
Essai 12 | 0.85 | 0.87 |
Essai 13 | 0.8 | 0.8 |
Essai 14 | 0.5 | 0.51 |
Résultats obtenus pour les essais A B et C. | ||||||
Coefficient d'absorption acoustique | Sabins Essai A | Coefficient d'absorption acoustique Essai B | Sabins Essai B | Coefficient d'absorption acoustique Essai C | Sabins Essai C | |
100 | 0.05 | 3.6 | 0.17 | 12.5 | 0.09 | 6.6 |
125 | 0.07 | 5.3 | 0.28 | 20.0 | 0.14 | 9.8 |
160 | 0.12 | 8.3 | 0.47 | 33.8 | 0.24 | 17.2 |
200 | 0.21 | 15.3 | 0.75 | 54.3 | 0.34 | 24.7 |
250 | 0.30 | 21.6 | 1.02 | 73.5 | 0.52 | 37.1 |
315 | 0.45 | 32.6 | 1.11 | 80.0 | 0.70 | 50.3 |
400 | 0.66 | 47.5 | 1.08 | 77.9 | 0.87 | 62.5 |
500 | 0.69 | 49.6 | 0.84 | 60.7 | 0.69 | 50.0 |
630 | 0.71 | 50.9 | 0.66 | 47.3 | 0.52 | 37.1 |
800 | 0.72 | 52.0 | 0.52 | 37.3 | 0.39 | 27.9 |
1000 | 0.74 | 53.3 | 0.42 | 29.9 | 0.30 | 21.3 |
1250 | 0.78 | 56.4 | 0.34 | 24.8 | 0.25 | 18.2 |
1600 | 0.83 | 60.1 | 0.30 | 21.3 | 0.28 | 19.9 |
2000 | 0.87 | 62.6 | 0.25 | 18.2 | 0.31 | 22.4 |
2500 | 0.92 | 65.9 | 0.22 | 15.7 | 0.25 | 17.9 |
3150 | 0.94 | 67.7 | 0.18 | 13.2 | 0.21 | 14.8 |
4000 | 0.98 | 70.2 | 0.15 | 11.0 | 0.18 | 13.3 |
5000 | 1.01 | 72.5 | 0.13 | 9.3 | 0.18 | 13.0 |
Valeurs NRC obtenues pour les essais A B et C. | |||
Essai A | Essai B | Essai C | |
NRC Moyen | 0.65 | 0.633 | 0.455 |
NRC | 0.65 | 0.65 | 0.45 |
Comparaison des propriétés acoustiques d'une feuille micro perforée selon l'invention et de plaques de plafonds conventionnelles. | |||||||
Produit | 125Hz | 250Hz | 500Hz | 1000Hz | 2000Hz | 4000Hz | CAA |
Plaque de plafond suspendu a (Armstrong) | 0.23 | 0.32 | 0.40 | 0.87 | 0.74 | 0.83 | 0.55 |
Plaque de plafond suspendu b (Armstrong) | 0.34 | 0.32 | 0.40 | 0.64 | 0.71 | 0.76 | 0.55 |
Plaque de plafond suspendu c (Armstrong) | 0.33 | 0.31 | 0.53 | 0.68 | 0.62 | 0.52 | 0.55 |
Toile tendue micro-perforée New Mat (assai 14) | 0.27 | 0.35 | 0.45 | 0.58 | 0.70 | 0.63 | 0.50 |
Claims (23)
- Matériau (1) polymère en feuille souple, d'épaisseur (e1) inférieure à un demi-millimètre, pour la réalisation de structures tendues telles que notamment des faux plafonds, caractérisé en ce qu'il comporte des micro-reliefs s'étendant sur une hauteur (h) de quelques microns à 100 microns, micro-reliefs (2) formés par repoussage de la matière constitutive du matériau (1) qui présente ainsi un coefficient d'absorption acoustique plus élevé que le même matériau dépourvu desdits reliefs.
- Matériau selon la revendication 1, caractérisé en ce que la hauteur (h) des micro-reliefs (2), mesurée suivant une direction perpendiculaire au plan de ladite feuille au droit de ces micro-reliefs (2) est inférieure à trois fois l'épaisseur (e1) de ladite feuille.
- Matériau selon la revendication 1 ou 2, caractérisé en ce que les micro-reliefs (2) forment des saillies sur une seule face de ladite feuille.
- Matériau selon la revendication 3, caractérisé en ce que chacun de ses micro-reliefs (2) est disposé suivant les noeuds d'un motif régulier.
- Matériau selon la revendication 4, caractérisé en ce que tous ses micro-reliefs (2) sont disposés suivant les noeuds d'un seul motif.
- Matériau selon la revendication 5 caractérisé en ce que le motif est à maille carrée.
- Matériau selon la revendication 1 ou 2, caractérisé en ce que ses micro-reliefs (2) forment des saillies sur les deux faces de ladite feuille.
- Matériau selon la revendication 7 caractérisé en ce que chacun de ses micro-reliefs (2) est disposé suivant les noeuds d'un motif régulier.
- Matériau selon la revendication 8 caractérisé en ce que tous ses micro-reliefs (2) sont disposés suivant les noeuds d'un seul motif.
- Matériau selon la revendication 9 caractérisé en ce que le motif est à maille carrée.
- Matériau selon l'une quelconque des revendications 1 à 10, caractérisé en ce que ses micro-reliefs (2) se présentent sous la forme de cuvettes dont le fond (4) sensiblement plan est relié à l'ouverture par une bande de matériau (5) d'épaisseur inférieure ou égale à celle des parties de la feuille séparant les micro-reliefs (2).
- Matériau selon la revendication 11, caractérisé en ce que les cuvettes sont de symétrie de révolution par rapport à un axe (3) sensiblement perpendiculaire à leur paroi de fond (4).
- Matériau selon la revendication 12, caractérisé en ce que la bande de matériau (5) reliant la paroi de fond (4) des cuvettes et leur ouverture est discontinue.
- Matériau selon l'une quelconque des revendications 1 à 13, caractérisé en ce qu'il est pourvu de micro perforations, d'ouverture inférieure à quatre dixièmes de millimètre.
- Matériau selon la revendication 14, caractérisé en ce qu'au moins une partie des micro-reliefs (2) est pourvue desdites micro perforations.
- Matériau selon la revendication 14 ou 15, caractérisé en ce que la densité de micro perforations est comprise entre 2 et 60 par centimètre carré.
- Matériau selon l'une quelconque des revendications 1 à 16 caractérisé en ce qu'il est choisi parmi le groupe comprenant les chlorures de polyvinyle plastifiés, chlorure de vinylidène et copolymères chlorure de vinyle / chlorure de vinylidène.
- Matériau selon l'une quelconque des revendications 1 à 17, caractérisé en ce que la surface occupée par les micro-reliefs (2) est comprise entre 0,5% et 10% de la surface de ladite feuille.
- Procédé de réalisation d'une feuille de matériau telle que présenté dans l'une quelconque des revendications 1 à 18, caractérisé en ce qu'il comprend une étape d'aiguilletage, repoussant localement la matière constitutive de la feuille, selon un motif prédéterminé jusqu'à sa microperforation.
- Procédé selon la revendication 19, caractérisé en ce que l'étape d'aiguilletage est réalisée sans que la feuille subisse un enlèvement de matière.
- Procédé selon la revendication 19 ou 20, caractérisé en ce que les aiguilles mises en oeuvre dans le procédé d'aiguilletage ont un diamètre extrême inférieur au dixième de millimètre.
- Procédé selon l'une quelconque des revendications 19 à 21, caractérisé en ce que l'étape d'aiguilletage est conduite alors que la feuille de matériau est placée sous une tension de l'ordre de celle de son utilisation finale dans une structure tendue.
- Faux plafond caractérisé en ce qu'il comprend une feuille d'un matériau tel que présenté dans l'une quelconque des revendications 1 à 18, mis sous tension par rapport à des moyens de support.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR2000/000682 WO2001071116A1 (fr) | 2000-03-20 | 2000-03-20 | Materiaux souples en feuilles pour structures tendues, procede de realisation de tels materiaux, faux plafonds tendus comprenant de tels materiaux |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1180186A1 EP1180186A1 (fr) | 2002-02-20 |
EP1180186B1 true EP1180186B1 (fr) | 2005-01-26 |
EP1180186B2 EP1180186B2 (fr) | 2009-01-14 |
Family
ID=8846089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00910999A Expired - Lifetime EP1180186B2 (fr) | 2000-03-20 | 2000-03-20 | Matériau polymère en feuille souple pour structures tendues et faux-plafond comprenant ce matériau |
Country Status (10)
Country | Link |
---|---|
US (4) | US7059089B1 (fr) |
EP (1) | EP1180186B2 (fr) |
AT (1) | ATE288001T1 (fr) |
AU (1) | AU3300900A (fr) |
CA (1) | CA2374414C (fr) |
DE (1) | DE60017725T3 (fr) |
DK (1) | DK1180186T4 (fr) |
ES (1) | ES2237411T5 (fr) |
PT (1) | PT1180186E (fr) |
WO (1) | WO2001071116A1 (fr) |
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US7637698B2 (en) * | 2004-10-22 | 2009-12-29 | Meernik Paul R | Tent ground cloth with drainage |
CN101124072B (zh) * | 2004-11-26 | 2010-05-26 | 新加坡科技研究局 | 形成微结构的方法和装置 |
KR101346873B1 (ko) | 2006-04-27 | 2014-01-02 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 흡음 특성을 갖는 구조화된 필름 |
US20090108504A1 (en) * | 2006-04-27 | 2009-04-30 | Slama David F | Methods of making structured films |
US7918312B2 (en) * | 2007-06-29 | 2011-04-05 | Carlson Gregory L | Acoustic reflective panel assembly |
FR2926099B1 (fr) * | 2008-01-09 | 2010-03-19 | Normalu | Nappe pour parois tendues accoustiques etanches et partiellement translucides |
JP5872895B2 (ja) * | 2008-05-05 | 2016-03-01 | スリーエム イノベイティブ プロパティズ カンパニー | 音響複合体 |
US20100014282A1 (en) * | 2008-07-15 | 2010-01-21 | Michael Danesh | Fire-resistant and noise attenuating recessed lighting assembly |
US9194124B2 (en) | 2011-12-09 | 2015-11-24 | 3M Innovative Properties Company | Acoustic light panel |
US8657067B1 (en) | 2012-09-25 | 2014-02-25 | The Boeing Company | Acoustic damping device for noise reduction |
EP2783656B1 (fr) | 2013-03-15 | 2017-06-28 | American Orthodontics Corporation | Support actif à ligature automatique |
CN105517919B (zh) * | 2013-08-02 | 2018-01-16 | 罗盖特公司 | 包括柔性集装箱和内衬的柔性存储装置,其制造方法及其用途 |
FR3101653B1 (fr) | 2019-10-02 | 2022-02-18 | Newmat | Element profile pour fausse paroi a toile tendue, fausse paroi comprenant un tel element profile |
FR3105552B1 (fr) * | 2019-12-23 | 2022-05-27 | Saint Gobain Isover | Ensemble d’isolation thermique et acoustique comprenant un produit d’isolation thermique et acoustique et une membrane en face avant |
FR3120884B1 (fr) | 2021-03-16 | 2023-04-14 | Newmat | Profilé de maintien d’une toile de faux plafond et faux plafond comprenant un tel profilé |
FR3140638A1 (fr) | 2022-10-05 | 2024-04-12 | Newmat | Elément profilé pour dalle à toile tendue et dalle comprenant un tel élément profilé |
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-
2000
- 2000-03-20 CA CA002374414A patent/CA2374414C/fr not_active Expired - Lifetime
- 2000-03-20 PT PT00910999T patent/PT1180186E/pt unknown
- 2000-03-20 ES ES00910999T patent/ES2237411T5/es not_active Expired - Lifetime
- 2000-03-20 DK DK00910999T patent/DK1180186T4/da active
- 2000-03-20 WO PCT/FR2000/000682 patent/WO2001071116A1/fr active IP Right Grant
- 2000-03-20 AU AU33009/00A patent/AU3300900A/en not_active Abandoned
- 2000-03-20 US US09/979,245 patent/US7059089B1/en not_active Expired - Lifetime
- 2000-03-20 EP EP00910999A patent/EP1180186B2/fr not_active Expired - Lifetime
- 2000-03-20 AT AT00910999T patent/ATE288001T1/de active
- 2000-03-20 DE DE60017725T patent/DE60017725T3/de not_active Expired - Lifetime
-
2005
- 2005-04-05 US US11/099,357 patent/US7467498B2/en not_active Expired - Fee Related
- 2005-04-05 US US11/099,142 patent/US20050186392A1/en not_active Abandoned
-
2009
- 2009-04-28 US US12/431,383 patent/US8906486B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0816583A1 (fr) * | 1996-07-03 | 1998-01-07 | KAEFER Isoliertechnik GmbH & Co. KG | Dispositif pour diminuer le niveau sonique dans des bâtiments |
Also Published As
Publication number | Publication date |
---|---|
ES2237411T3 (es) | 2005-08-01 |
CA2374414A1 (fr) | 2001-09-27 |
EP1180186B2 (fr) | 2009-01-14 |
US20050186392A1 (en) | 2005-08-25 |
DE60017725T2 (de) | 2006-01-12 |
US20050188633A1 (en) | 2005-09-01 |
EP1180186A1 (fr) | 2002-02-20 |
DE60017725T3 (de) | 2009-08-13 |
DK1180186T4 (da) | 2009-05-11 |
DK1180186T3 (da) | 2005-06-06 |
ES2237411T5 (es) | 2009-06-03 |
US7059089B1 (en) | 2006-06-13 |
US8906486B2 (en) | 2014-12-09 |
US7467498B2 (en) | 2008-12-23 |
ATE288001T1 (de) | 2005-02-15 |
DE60017725D1 (de) | 2005-03-03 |
PT1180186E (pt) | 2005-05-31 |
US20090297767A1 (en) | 2009-12-03 |
AU3300900A (en) | 2001-10-03 |
WO2001071116A1 (fr) | 2001-09-27 |
CA2374414C (fr) | 2008-05-20 |
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