EP1180186A1 - Materiaux souples en feuilles pour structures tendues, procede de realisation de tels materiaux, faux plafonds tendus comprenant de tels materiaux - Google Patents
Materiaux souples en feuilles pour structures tendues, procede de realisation de tels materiaux, faux plafonds tendus comprenant de tels materiauxInfo
- Publication number
- EP1180186A1 EP1180186A1 EP00910999A EP00910999A EP1180186A1 EP 1180186 A1 EP1180186 A1 EP 1180186A1 EP 00910999 A EP00910999 A EP 00910999A EP 00910999 A EP00910999 A EP 00910999A EP 1180186 A1 EP1180186 A1 EP 1180186A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- micro
- reliefs
- material according
- sheet
- perforations
- 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.)
- Granted
Links
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Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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 relatively thin sheet materials, typically less than half a millimeter, used for the production of sub-ceilings, false ceilings, false walls, wall coverings, by tensioning these materials. in sheet.
- False ceilings obtained using such materials can incorporate thermal insulation, spotlights or various 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 prior art, translucent or opaque, tinted or not in the mass, mat, lacquered, marbled, deer or satin, can thus be used both in an industrial environment and in a hospital environment, for collective equipment, laboratories or homes.
- the lacquered finish allows a mirror effect often implemented in shopping centers, a mat finish fairly close to a plaster appearance being more usual in traditional decorations.
- soundproofing panels comprise a perforated metal or plastic plate fixed to a support of the mineral wool or polyurethane foam type.
- first passive sound absorption technique by fibrous or porous materials reference may be made, for example, to the following documents: EP-A-013 513, EP-
- This technique leads to an assembly in which the phonetically absorbing counter-facing is integral with an apparent perforated facing.
- the perforations are intended to allow the attenuation of the waves by the acoustic absorbent material, the latter not being able to be left visible because it is too fragile, of surface sometimes dirty and of unattractive raw appearance.
- the panels forming the walls such as for example suspended ceilings are provided with cavities whose volume is calculated to match them over certain frequency ranges, these cavities being protected by a porous facing.
- Helmotz resonators reference may be made, for example, to documents 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 plies form absorbent membranes. This expensive technique is sometimes used in recording studios. None of the technical solutions known in the prior art for improving the phonic properties of suspended walls or ceilings is adapted to the particular technique of stretch ceilings or walls.
- a first object of the invention is to provide a flexible material, in sheet form, capable of being used for stretched decoration, masking or display structures, such as in particular false ceilings, false walls, this material having greatly acoustic properties. improved.
- a second object of the invention is to provide a material as above, the visual appearance of which remains perfectly suited to its use, both in an industrial environment and in a hospital environment as for collective equipment or premises for modern dwellings. or historical.
- the invention relates, according to a first aspect, to a flexible sheet material, of thickness less than half a millimeter, for the production of tensile structures such as in particular false ceilings, this material comprising micro reliefs formed by pushing back its constituent material, this material having a higher sound absorption coefficient than the same material devoid of said reliefs.
- this material also has the following characters, possibly combined: the height of the micro-reliefs, measured in a direction perpendicular to the plane of said sheet in line with these micro-reliefs is less than three times the thickness of said leaf ; its micro-reliefs form projections on one side of said sheet; each of its micro-reliefs is arranged along the nodes of a regular pattern; all its micro-reliefs are arranged according to the nodes of a single pattern, for example with square mesh; its micro-reliefs form protrusions on the two faces of said sheet, each of its micro-reliefs being arranged along the nodes of a regular pattern, all of its micro-reliefs being if necessary arranged along the nodes of a single pattern , for example with square mesh; - Its micro-reliefs are in the form of bowls whose substantially flat bottom is connected to the opening by a strip of material of thickness less than or equal to that of the parts of the sheet separating
- the invention relates, according to a second aspect, to a process for producing a sheet of material as presented above, this process comprising a needling step, locally repelling the material of the sheet up to its micro perforation, according to a predetermined pattern.
- the needling step is carried out without the sheet undergoing material removal.
- the needles used in the needling process have an extreme diameter less than a tenth of a millimeter, for example of the order of four hundredths of a millimeter.
- the needling step is carried out while the sheet of material is placed under a tension of the order of that of its final use in a tensile structure.
- the invention relates, according to a third aspect, to a false ceiling, characterized in that it comprises a sheet of a material as presented above, tensioned with respect to support means.
- FIG. 1a, 1b and 1c illustrate different embodiments of a material for stretched canvas according to the invention
- - Figure 2 is a graph representing the measured acoustic absorption coefficient values, as a function of the average third octave frequency under four experimental conditions 1b, 2b, 3 and 4, as well as for a standard reference sample;
- - Figure 3 is a graph similar to that of Figure 2, for experimental conditions 5, 6 and 7;
- FIG. 4 is a graph similar to that of Figure 3, for experimental conditions 8, 8b, 9, the results obtained for conditions 1b, 2b being plotted on the graph of this Figure 4 for comparison;
- FIG. 5 is a graph similar to that of Figure 2, for experimental condition 10, the results obtained for tests 3, 6 being plotted on this graph of Figure 5, for comparison;
- FIG. 6 is a graph similar to that of Figure 2, for experimental condition 11, the results obtained for conditions 4 and 5 being plotted on this graph of Figure 6, for comparison;
- Figure 7 is a graph similar to that of Figure 2, for experimental conditions 12, 13 and 14;
- FIG. 8 is a histogram of the sound absorption coefficient values as a function of the third octave frequency value, for experimental conditions A;
- Figure 9 is a histogram similar to that of Figure 8, for experimental conditions B;
- FIG. 10 is a histogram similar to that of Figure 8, for the experimental conditions C.
- FIG. 1a is a front view of a material 1 with a thickness of the order of a tenth of a millimeter, provided with substantially identical micro-reliefs 2 regularly distributed over a square mesh network.
- Figure 1b is shown in greatly enlarged view the shape of these reliefs 2, when seen in section 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, in the embodiment considered here, in the form of basins substantially in the form of a revolution around an axis 3 perpendicular to the mean plane of the sheet of material 1 laid flat.
- These reliefs extend over a small height h, of the order of a few microns to a few tens of microns, and have an apparent opening of the order of two tenths of a millimeter.
- these micro-reliefs are provided with a bottom wall 4 with holes.
- These through holes 19 result, in a particular embodiment, from needling by 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 carried out while the sheet of material 1 is placed under tension.
- This tension is, in a particular embodiment, of the order of that undergone by the sheet at its place of use, for example in a false stretch ceiling.
- the through holes 19, with a diameter of the order of a few hundredths of a millimeter, are obtained without removing material.
- the bottom wall 4 of the micro-perforated reliefs 2 is connected to the edge of the bowls by an annular wall 5 of revolution around the axis 3. If necessary, this wall 5 may have a thickness e5 less than that e1 measured between the reliefs for the sheet of material 1. This difference in thickness will be all the more marked the greater the height h of the micro-reliefs 2, at given thickness e1. In certain particular embodiments, not shown, for at least part of the reliefs 2, the annular wall 5 is discontinuous.
- the bottom wall of at least part of the micro-reliefs may be substantially full, that is to say without a through hole.
- - pitch p between the micro-reliefs 1 mm;
- the reliefs are not all identical, two or more than two populations of reliefs that can be distinguished, these reliefs being of different shapes.
- the reliefs are not all substantially punctual, but extend in at least one direction to form micro grooves and micro grooves.
- all of the reliefs are not of symmetry of revolution with respect to an axis substantially perpendicular to the mean plane of the sheet of material 1.
- the bowl bottoms when viewed in plan, can be square, rectangular, oval, in the shape of a regular polygon or not.
- the mesh of the micro-relief network is square, in the embodiment of FIG. 1. In other embodiments, this mesh is not square but rectangular.
- At least two networks of micro-reliefs, of mesh and / or of pitch p1, p2, p'2 different are arranged on the sheet of material 1, as shown in FIG. 1c.
- micro-perforated micro-reliefs proving in particular to be both effective in terms of acoustics and almost undetectable to look.
- the invention makes it possible in particular to achieve acoustic properties similar to those of noise-absorbing suspended ceilings.
- the sheet is provided with micro-reliefs but is not perforated or micro-perforated.
- micro-reliefs without perforations, makes it possible to improve the acoustic properties of the material without affecting its properties as a fluid-tight barrier. Compared to perforated sheets, any traces of passage air such as dark marks can also be avoided. Likewise, 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 substantially alter its visual appearance.
- the inventors have in particular observed that the production of micro perforations 19 as shown in FIG. 1b is almost undetectable when combined with a matt finish for the visible face 20 of the sheet of material 1.
- the improved acoustic properties for the material make it possible to avoid the installation of fibrous insulation, which can generate dust and microfibers whose impact on health has been discussed.
- the sound waves originate from propagation of pressure variations in elastic media, by wave fronts, at a speed depending, in solids, on the modulus of elasticity and the density of the solid (of the order of 500m / s in cork and 3100 m / s in common concrete for example).
- the spectrum audible by the human ear is formed by the frequencies of the vibrations of sounds between 16 Hertz and 20,000 Hertz, when these sounds are emitted beyond a certain acoustic pressure (hearing threshold equal to four phones).
- the frequency range of speech is between 10 and 10 kHz approximately, understandable speech being concentrated on frequencies between 300 Hz and 3 kHz.
- the range of musical frequencies is between approximately 16Hz and 16 kHz, one octave corresponding to a doubling of frequency.
- Sound absorption can be obtained by converting acoustic energy into internal deformation or friction work in a porous absorbent material of low acoustic impedance, or using a dissipating resonator, in the form of internal friction heat, the acoustic energy of sounds of frequencies close to the natural frequencies of the resonator.
- acoustic energy into internal deformation or friction work in a porous absorbent material of low acoustic impedance, or using a dissipating resonator, in the form of internal friction heat, the acoustic energy of sounds of frequencies close to the natural frequencies of the resonator.
- porous materials such as porous concretes and rigid foams, in which the networks of capillaries form acoustic resistance
- a sound absorption index ⁇ is defined (without units), this index ⁇ being the normalized difference of the incident and reflected acoustic energy. This index is a function of the frequency of the incident sounds. Since sound attenuation in air is a function of temperature, pressure and relative humidity, the absorption index must be measured at known temperature, pressure and humidity (see French standard NF S 30 009). Regarding the measurement standards of this index, we can refer for example to the following documents: international standard ISO 354, French standards NF EN 20354, NF S 31 065, standard of the United States of America ASTM C423. The table below gives some values of this sound absorption index ⁇ .
- a reverberation time T for this reverberation, we define a reverberation time T, according to Sabine's formula where V is the volume of free space; A is the absorbent surface; ⁇ is the absorption index defined above.
- the reverberation time is the time after which the acoustic energy has decreased by 60dB, ie 1ppm compared to its initial value.
- the sheets of material, of dimensions 9'x8 ' have been fixed on the surface of a parallelepipedic box of glass wool, of wall thickness 3/4', of dimensions 9'x8'x4 ', the box being placed on a corrugated steel plate.
- the glass wool box was removed from the reverberation chamber for the so-called empty chamber measurements.
- the results of the tests are given in Table I below.
- the frequencies mentioned in Table I are the center frequencies of the standard third octave bands.
- the so-called "perforated NLM41" sheets are of the type sold by the applicant under the reference NewLine NLM41. These sheets are provided with large perforations (circular holes with a diameter of four millimeters), obtained by removing material, the density of holes being less than one per square centimeter. These circular holes are intended to allow ventilation of the plenum and possible smoke extraction: this range of NLM41 products is classified M1 / B1 / Fire 1.
- perforated NL601 sheets are of the type sold by the applicant under the reference NewLine NL601. These sheets are also provided with large perforations (circular holes with a diameter of one millimeter), perforations obtained by removing material. These circular holes are intended, like those of NLM41 sheets, to allow ventilation of the plenum and possible smoke extraction, this range of NL601 products being classified M1 / B1 / Fire 1.
- FIG. 4 is a graph bringing together the results of tests 8, 8b and 9, compared to those obtained for tests 1b, 2b, and 7;
- FIG. 5 is a graph representing the results obtained for test 10, compared to those of tests 3 and 6;
- FIG. 6 is a graph representing the results obtained for test 11, compared with those obtained for tests 4 and 5.
- curves 1b and 2b shows the impact of the installation of a conventional fibrous sound insulation, as can be done in the plenum.
- micro-reliefs and micro-perforations leads to results as favorable as the production of large perforations.
- the results obtained with micro-perforations are even better in the high frequency range, compared to those obtained by large perforations.
- Tests 12, 13 and 14 illustrate these surprising results. The conditions of these tests were as follows: temperature ⁇ 70F (21.2 ° C approximately), humidity ⁇ 64%, atmospheric pressure. A 9'x8 'sheet of micro-perforated material was tested in an E 1219 type assembly.
- micro-perforated is meant here, with reference to tests 12, 13 and 14, a sheet of PVC material of 17 hundredths of a millimeter thick, 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 twenty 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 an unpainted parallelepiped box in the wall of glass fibers 3/4 "thick, with a volume equal to 10154.72 cu.ft.
- the sound absorption values obtained during tests 12, 13 and 14 are plotted on the graph in FIG. 7, only the frequencies between 125 and 4000 Hz being taken into account, in order to ensure consistency of presentation with the graphs in the figures. 2 to 6.
- the combination of a micro-perforated membrane with a fibrous insulation placed at a distance from the rigid wall makes it possible to obtain a homogeneous acoustic attenuation over the whole range of frequencies considered.
- the support frame for the smooth PVC panels is made of metal tubes with a height of 4 "and a nominal thickness of 1-1 / 2".
- This frame is fixed from the outside to the base wall of the reverberation chamber.
- the total weight of this fiberglass panel is 0.49 psf, the strip of PVC weighing 0.05 psf.
- the support frame for the smooth PVC panels is made of metal tubes with a height of 4 "and a nominal thickness of 1-1 / 2". This frame is fixed from the outside to the base wall of the reverberation chamber.
- the histograms of FIGS. 8, 9 and 10 represent the changes in the sound absorption coefficients for the frequencies between 100 and 5000 Hertz, for tests A, B and C.
- the flexible polymer material, in sheet form, with improved acoustic properties which has just been described is suitable for being used for tensile structures for decoration or masking such as in particular false ceilings, false walls.
- This material can also be used for display panels, of the fixed or scrolling type, the attenuation of the reverberation making it possible to reduce the noise nuisance generated by these panels.
- this material remains perfectly adapted for a use as well in industrial environment as in hospital environment as for collective equipment or premises of modern dwellings. or historical.
- the acoustic properties obtained using these materials are quite comparable to those of conventional suspended ceilings, as shown in the table below, given for information. conventional.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Building Environments (AREA)
- Laminated Bodies (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Treatment Of Fiber Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Description
Claims
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 true EP1180186A1 (fr) | 2002-02-20 |
EP1180186B1 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) |
Families Citing this family (16)
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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 |
KR101308300B1 (ko) | 2006-04-27 | 2013-09-17 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 구조화된 필름의 제조 방법 |
JP5623737B2 (ja) * | 2006-04-27 | 2014-11-12 | スリーエム イノベイティブプロパティズカンパニー | 音響吸収性を有する構造化膜 |
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FR2926099B1 (fr) * | 2008-01-09 | 2010-03-19 | Normalu | Nappe pour parois tendues accoustiques etanches et partiellement translucides |
WO2009137466A2 (fr) * | 2008-05-05 | 2009-11-12 | 3M Innovative Properties Company | Composite acoustique |
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 |
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US9468505B2 (en) | 2013-03-15 | 2016-10-18 | American Orthodontics Corporation | Self-ligating bracket |
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-
2000
- 2000-03-20 AU AU33009/00A patent/AU3300900A/en not_active Abandoned
- 2000-03-20 WO PCT/FR2000/000682 patent/WO2001071116A1/fr active IP Right Grant
- 2000-03-20 DK DK00910999T patent/DK1180186T4/da active
- 2000-03-20 ES ES00910999T patent/ES2237411T5/es not_active Expired - Lifetime
- 2000-03-20 AT AT00910999T patent/ATE288001T1/de active
- 2000-03-20 CA CA002374414A patent/CA2374414C/fr not_active Expired - Lifetime
- 2000-03-20 EP EP00910999A patent/EP1180186B2/fr not_active Expired - Lifetime
- 2000-03-20 PT PT00910999T patent/PT1180186E/pt unknown
- 2000-03-20 DE DE60017725T patent/DE60017725T3/de not_active Expired - Lifetime
- 2000-03-20 US US09/979,245 patent/US7059089B1/en not_active Expired - Lifetime
-
2005
- 2005-04-05 US US11/099,142 patent/US20050186392A1/en not_active Abandoned
- 2005-04-05 US US11/099,357 patent/US7467498B2/en not_active Expired - Fee Related
-
2009
- 2009-04-28 US US12/431,383 patent/US8906486B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
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See references of WO0171116A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1180186B2 (fr) | 2009-01-14 |
ES2237411T5 (es) | 2009-06-03 |
AU3300900A (en) | 2001-10-03 |
PT1180186E (pt) | 2005-05-31 |
US7467498B2 (en) | 2008-12-23 |
EP1180186B1 (fr) | 2005-01-26 |
US20050188633A1 (en) | 2005-09-01 |
CA2374414A1 (fr) | 2001-09-27 |
DE60017725T2 (de) | 2006-01-12 |
WO2001071116A1 (fr) | 2001-09-27 |
US20090297767A1 (en) | 2009-12-03 |
DE60017725D1 (de) | 2005-03-03 |
DK1180186T4 (da) | 2009-05-11 |
US7059089B1 (en) | 2006-06-13 |
US8906486B2 (en) | 2014-12-09 |
CA2374414C (fr) | 2008-05-20 |
US20050186392A1 (en) | 2005-08-25 |
DE60017725T3 (de) | 2009-08-13 |
ES2237411T3 (es) | 2005-08-01 |
ATE288001T1 (de) | 2005-02-15 |
DK1180186T3 (da) | 2005-06-06 |
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