CN103733252B - Acoustic decorative material - Google Patents
Acoustic decorative material Download PDFInfo
- Publication number
- CN103733252B CN103733252B CN201280039921.8A CN201280039921A CN103733252B CN 103733252 B CN103733252 B CN 103733252B CN 201280039921 A CN201280039921 A CN 201280039921A CN 103733252 B CN103733252 B CN 103733252B
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- Prior art keywords
- decorative sheet
- acoustic decorative
- film layer
- adhesive phase
- micropore
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- 239000000463 material Substances 0.000 title description 19
- 239000000853 adhesive Substances 0.000 claims abstract description 40
- 230000001070 adhesive Effects 0.000 claims abstract description 40
- 239000004744 fabric Substances 0.000 claims abstract description 39
- 239000011521 glass Substances 0.000 claims abstract description 39
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 239000003292 glue Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 68
- 238000005034 decoration Methods 0.000 description 17
- 239000011230 binding agent Substances 0.000 description 13
- 229920005989 resin Polymers 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 5
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 230000001678 irradiating Effects 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920001596 poly (chlorostyrenes) Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 229920002301 Cellulose acetate Polymers 0.000 description 1
- 239000004821 Contact adhesive Substances 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229920001225 Polyester resin Polymers 0.000 description 1
- 239000004698 Polyethylene (PE) Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 210000003491 Skin Anatomy 0.000 description 1
- 229920002803 Thermoplastic polyurethane Polymers 0.000 description 1
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- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
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- 239000004035 construction material Substances 0.000 description 1
- 238000009820 dry lamination Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 235000005035 ginseng Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
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- 230000020169 heat generation Effects 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
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- 239000003973 paint Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
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- 229920001155 polypropylene Polymers 0.000 description 1
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- XTXRWKRVRITETP-UHFFFAOYSA-N vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
Abstract
The present invention provides a kind of acoustic decorative sheet, and including film layer, glass fabric layer and adhesive phase, described film layer is separated by described adhesive phase with described glass fabric layer.Described adhesive phase adheres to described film layer and described glass fabric layer.Described film layer and described adhesive phase have and are disposed through multiple micropore therein.Described micropore has the diameter in 20 to 500 micrometer ranges, and the number of micropore is 2 to 700/cm2.A kind of soundproofing member includes: described acoustic decorative sheet;Substrate;And air gap, described air gap makes described acoustic decorative sheet be at least partially separated with described substrate.
Description
Background technology
The present invention relates to a kind of acoustic decorative sheet and a kind of soundproofing member.
Decoration sheet is used as skin material, such as building or the wall of vehicle interior, top or
The surface on floor.Such as, JP-T2002-521722 relates to a kind of deadener using microporous membrane.
JP-A No.2010-196421 describes a kind of sound-absorbing decoration sheet using micropore decoration sheet.This inhales
Sound decoration sheet absorbs sound, and includes decoration coating, continuous foam body layer and have the viscous of micropore
Mixture layer.
The surface strength of above acoustic decorative sheet is the most sufficiently strong.Therefore, as skin material,
Such as during the surface on the wall of building or vehicle interior, top or floor, may produce from the teeth outwards
Rupture or indenture, and skin covering of the surface is likely to fracture.Expect the sound isolating decorative sheet with the intensity of improvement
Material.
Summary of the invention
The present invention provides one to be used for being arranged on article or suprabasil acoustic decorative sheet.Described substrate
Can have sound reflective surfaces.
In many examples, acoustic decorative sheet includes film layer, glass fabric layer and adhesive phase, institute
State adhesive phase to be separated with glass fabric layer by film layer.Adhesive phase adheres to film layer and glass fabric layer.Film
Layer and adhesive phase have and are disposed through multiple micropore therein.Described micropore has 20 to 500
Diameter in micrometer range, and the number of micropore is 2 to 700/cm2。
In many examples, soundproofing member includes acoustic decorative sheet, substrate and air gap, described gas
Gap makes described acoustic decorative sheet be at least partially separated with described substrate.
The present invention provides a kind of acoustic decorative sheet that can be used as sound-proof damping material, and it has dicoration
And there is enough surface strengths to be used as construction material.Described acoustic decorative sheet has glass cloth
Layer, described glass fabric layer contributes to preventing the breakage of acoustic decorative sheet or fracture.
Accompanying drawing explanation
Fig. 1 is the sectional view of the Exemplary acoustic barrier assembly of the present invention.
Fig. 2 is the sectional view of the Exemplary acoustic barrier decoration sheet of the present invention.
Fig. 3 shows four soundproofing members of the present invention and the curve of the acoustical absorbance properties of two comparative examples
Figure.
Detailed description of the invention
The acoustic decorative sheet of the present invention is arranged on substrate or the article with sound reflective surfaces.Institute
State acoustic decorative sheet to be placed near substrate or article surface or adjacent, in order at sound isolating decorative
Air space or air gap is limited between sheet material and described article or substrate.Make described substrate with described every
That sound decoration sheet is at least partially separated, have height (H) spacer element can limit described air gap
Or air space.Described acoustic decorative sheet includes decoration coating and glass fabric layer.Described substrate or
The reflecting surface of article has the surface relative with glass fabric layer.
Sound isolating decorative film layer is formed by being laminated in by adhesive phase on film layer.Can be by any known
Method is designed, such as, use intaglio printing or the hectographic printing of ink, or by using coloured silk
Film.Additionally, film layer can be made up of single layer or two or more layers.At two or more layers
In the case of, between each layer of film layer, may also include adhesive phase and prime coat or there is other merits
The layer of energy.
Described film layer can be formed by polymer or resin material.Described polymer or resin comprise the steps that example
As, various synthetic resin, such as vinyl chloride resin, vinyl chloride, vinyl acetate resin, acrylic compounds
Resin, polyester resin, celluosic resin or vistanex or a combination thereof.In the middle of this, example
As, when using single layer as film layer, described film includes Corvic.
Additionally, when film has two or more layer, such as, transparent sealer includes layer
Being combined in the fluorine resin on film layer or acrylic resin, described film layer includes vinyl chloride resin.Can lead to
Cross known printing process and carry out Art Design on the surface of described film layer or sealer.
The thickness of described film layer is not particularly limited;But, such as, it can at about 0.01mm extremely
In the range of 0.5mm.
Described film layer is separated by adhesive phase with described glass fabric layer, and adheres to described film layer and glass
Layer of cloth, thus form the laminate of three layers.In many examples, described film layer is directly adhered to
Over the binder layer, and by described glass fabric layer it is adhered directly on described adhesive phase.Described bonding
Oxidant layer can include known contact adhesive and/or heat sensitive adhesive, to adhere to described film layer and glass cloth
Layer.Such as, described adhesive phase comprises the steps that Pressure sensitive touch film, and abnormal smells from the patient contains binder polymer
Monofilm;Or double-sided adhesive Radix Aconiti Lateralis Preparata material, it has two pressure sensitive adhesive layers.
Such as, can by preparation have separate paper single adhesive phase and to this adhesive phase and
Film layer carries out dry lamination to manufacture described adhesive phase, has on the stripping surface of described separate paper
The adhesive phase of coating.Or, binding agent such as binder polymer can be used on film layer and does
Dry, and adhesive phase can be regarded as.
The thickness of described adhesive phase is not particularly limited;But, such as, it can be at about 0.01mm
To 0.2mm.
Decoration coating has multiple micropore, and described micropore extends through adhesive phase to glass cloth from film layer
Layer.Micropore can have any available size, and its diameter can in the range of 20 to 500 microns,
And number is 2 to 700/cm2(that is, number density).Within such ranges, desired sound-absorbing can be obtained
Effect, keeps its decorative appearance simultaneously.
The diameter of micropore extends through the surface of film layer and adhesive phase.In certain embodiments, micropore
Diameter in the range of 40 to 350 microns or 50 to 250 microns.Number density represents per unit face
Long-pending micropore number.In certain embodiments, number density is in the range of 4 to 625/cm2, or 10 to
200/cm2.The diameter of above-mentioned applicable scope and number density can be combined as with any available combination.
Form decoration coating in the following manner: such as, the most above-mentioned by film layer and binding agent layer by layer
After conjunction, with any can method such as pin or brill or by use laser form micropore.Also may be used
To use the commercially available upholstery sheet material with adhesive phase or graphic films, described adhesive phase is as above
Described it is provided with micropore.
Known equipment can be used to irradiate to carry out laser to form described micropore;Such as, by electricity in hole
Carbon dioxide laser irradiating machine (the LSS-that sub-company limited (Horiuchi Electronics Co.Ltd.) manufactures
S050VAH-W), or by Sumitomo hoisting machinery Industrial Co., Ltd (Pin Chuan district, Tokyo)
(Sumitomo Heavy Industries Mechatronics, Ltd. (Shinagawa-ku, Tokyo
Japan) carbon dioxide laser irradiating machine (the LUMONICS IMPACT2500) manufactured
" LAVIA1000TW ").In one embodiment, utilize above-mentioned laser equipment with following operation ginseng
Number form becomes micropore: wavelength: 9.3 microns, the average maximum output of laser irradiating machine: 65W;And,
Current system: double end, and treatment conditions can be set, output: 1 to 1.6W.
Glass fabric layer improves the surface strength of acoustic decorative sheet, and simultaneously low easily for soundproofing member offer
Combustion property characteristic.It is therefore possible to prevent or minimize breaking on the surface of soundproofing member or acoustic decorative sheet
Damage or rupture.Additionally, described glass fabric layer additionally aids the rigidity improving acoustic decorative sheet, thus
Improve the operability of soundproofing member and acoustic decorative sheet.
Described glass fabric layer can include known glass cloth.Thickness and the weight of glass fabric layer are not subject to
Limit, and can be to carry out in the range of acoustic decorative sheet offer breathability and enough surface strengths
Be suitable for selects.Such as, the thickness of glass fabric layer can be about 10 microns or more, 30 microns or more
Many or 50 microns or more and about 300 microns or less, 200 microns or less or 100
Micron or less, or at 10 to 300 microns or 30 to 200 microns or 50 to 100 microns
In the range of.Weight can be set about 10g/cm2Or more or 30g/cm2Or more, Yi Jiyue
350g/cm2Or less or 200g/cm2Or less, or at 10 to 350g/cm2In the range of, or
30 to 350g/cm2In the range of.Exemplary glass cloth includes can (central authorities of company limited by You Niji
District, Osaka, Japan) (Unitika Co.Ltd.(Chuo-ku, Osaka, Japan)) manufacture
H105。
Described acoustic decorative sheet can be on the surface (surface of article side) of the side relative with film layer
There is another adhesive phase, in order to correspondence sheet material is adhered to sept.This another adhesive phase is permissible
It is pantostrat or discontinuity layer.For this adhesive phase, can by with glass fabric layer and film layer
Method that method that adhesive phase is used is identical, use identical binding agent to obtain similar thickness
Degree.This adhesive phase can also have liner (separate paper).This kind of liner can be commonly used in each neck
In territory, such as adhesive tape, and it is not limited to specific components.Such as, described liner can be by paper or plasticity
Material is made, such as polyethylene, polypropylene, polyester or cellulose acetate, or thus plants plasticity material
Material or the paper with its lamination cover, or other materials.Although these liners can be used as by it,
But it is preferred that carrying out processing to improve the stripping spy of liner by method or the additive method of siliconising
Described liner is just used after property.Additionally, the thickness of liner is not particularly limited;But, generally,
Thickness can be set scope or the scope of about 0.05 to 0.2mm being about 0.025 to 0.5mm.
Can come by the glass fabric layer with expectation thickness being adhered to the adhesive phase of micropore decoration coating
Make described decoration sheet.Or, can obtain by adhesive phase is adhered to each other with glass fabric layer
Obtaining described decoration sheet, described glass cloth is by described binder polymer solution is applied to liner
Go up and make it to be dried and obtain.
The general thickness (e.g., " gross thickness ") of described acoustic decorative sheet is not particularly limited, and
Can be according to selecting that the aspect of sheet material to be used carries out being suitable for." gross thickness " represent described film layer,
The summation of the thickness of adhesive phase and glass fabric layer.If gross thickness is obtaining the scope of effect of the present invention
In, then it is not particularly limited;But, such as, can be set about 0.1mm or more,
0.2mm or more, 1mm or less and 0.5mm or less, or at 0.1 to 1mm or
In the range of 0.1 to 0.5mm.Described decoration sheet can also be containing other functional layer, such as priming paint
Layer.
Soundproofing member can have article or the base of sound reflective surfaces for acoustic decorative sheet being arranged on
At at the end.The sound reflective surfaces of described article or substrate surface and the glass cloth of described acoustic decorative sheet
To each other, and described acoustic decorative sheet is positioned to or is arranged to can determine between it aspect
Air space or air gap or be isolated out.
Described article or substrate could be for being attached one of the binding agent of described acoustic decorative sheet
Point.Such as, it can be such as house complex zone, building and other buildings isostructural wall table
Face, roof surface or floor surface;Or dividing plate.Such as, described article or substrate can have metal or
The matrix materials such as Gypsum Fibrosum.In certain embodiments, soundproofing member is attached to matrix material, is then attached
To wall surface, roof surface, floor surface or dividing plate, or wall, top, floor or
Dividing plate can thus be planted soundproofing member and be formed.
Air space or air gap is can determine that, in order to by institute by fixing described acoustic decorative sheet
State and between substrate or article and described acoustic decorative sheet, provide sept to keep desired distance.Institute
State article and decoration sheet may not always all keep in all regions of soundproofing member identical fixing away from
From.Such as, if described substrate or article have uneven or three-dimensional shape, then by with being spaced
Thing fixes described article and acoustic decorative sheet to make outer surface or the outer surface of acoustic decorative sheet
(that is, film layer) is smooth or in plane so that the surface of described article or substrate and described sound isolating decorative
Distance between sheet material can change according to the position along soundproofing member.For described sept,
The article such as such as grid, grid, lattice or framework can be used.Such as, described acoustic decorative sheet can
Around framework, and be mechanically fixed on suitable position and without using binding agent.
Described soundproofing member is formed with known method.Such as, the article of such as wall surface just it are attached to
Soundproofing member for, by fixing described acoustic decorative sheet and sept with binding agent and passing through
With binding agent described sept is fixed to substrate surface (such as, wall surface) formed described every
Sound assembly.Or, for there is the deadener of the acoustic decorative sheet being attached to matrix material,
Described acoustic decorative sheet and sept binding agent are fixed, and by with binding agent with bonding or
Described acoustic decorative sheet and sept are attached to matrix material (such as, metallic plate by the mode adhered to
Or plasterboard) form soundproofing member.In this case, this soundproofing member can be connected with structure
Wall surface.
There is between described acoustic decorative sheet and substrate air space or air gap improves sound insulation group
The sound absorption properties of part, and the thickness changing described air space or air gap allows sound-absorbing to soundproofing member
Characteristic adjusts.The thickness of described air space or air gap is known as the surface of article and fills with sound insulation
Distance between the inner surface (surface of article side) of spike material, and can be according to desired acoustical absorbance properties
Suitably adjust.Specifically, such as, described air-gap setting can be about 2mm or more,
5mm or more, 8mm or more, 10mm or more, 50mm or less, 30mm or less,
And 20mm or less.In many examples, can be at 2 to 50mm by described air-gap setting
Or in the range of 2 to 20mm.
Owing to described acoustic decorative sheet includes glass fabric layer, therefore it has fabulous on its outer surface
Intensity.Therefore, even if soundproofing member has air space or gas between decoration sheet and article
Gap, but do not make the rigidity on the surface of soundproofing member lose, and can prevent or alleviate described
Breakage on surface or rupture.
Example
The preparation of acoustic decorative sheet sample
Sample 1
Use the carbon dioxide manufactured by Jue Nei Electronics Co., Ltd. (Horiuchi Electronics Co.Ltd.)
Laser machine (LSS-S050VAH-W), has acrylic pressure-sensitive adhesive and the polychlorostyrene second of lamination
Decorating film (the DI-NOC of alkene filmTMFilm FW-888, is manufactured by Sumitomo3M Limited, thickness
About 200 microns) the upper laser exporting 6W, in order to provide diameter to be about 350 microns and pitch is
2mm(number density is 25/cm2) micropore.From the micropore DI-NOC obtainedTMFilm removes liner,
And described film sticks to 100 microns of thick glass cloth sheet materials, and (trade name H105, by Unitika
Co.Ltd.(central area, Osaka, Japan) manufacture) upper to form sample 1.
Sample 2
Use the carbon dioxide manufactured by Jue Nei Electronics Co., Ltd. (Horiuchi Electronics Co.Ltd.)
Laser machine (LSS-S050VAH-W), has acrylic pressure-sensitive adhesive and the polychlorostyrene second of lamination
Decorating film (the DI-NOC of alkene filmTMFilm FW-888, is manufactured by Sumitomo3M Limited, thickness
Be of about 200 microns) on be output as the laser of 6W, in order to the micropore identical with sample 1 is provided.From
The micropore DI-NOC obtainedTMFilm removes liner, and the flexibility that described film sticks to 3mm thickness is gathered
(VHZ, by BRIDGESTONE Chemical Co., Ltd. (Bridgestone Chemical Ltd) for urethane resin bed
Manufacture) on.By scraper for coating by acrylic pressure-sensitive adhesive (mass ratio, butyl acrylate: third
Olefin(e) acid=90:10, and solids content: 32%) it is applied to liner so that it is and thickness after the drying is 40
Micron, is combined in the adhesive phase on flexible polyurethane resin bed with making layer, thus forms sample 2.
Heat release test
According to Japanese architecture comprehensive study institute (General Building Research Corporation of
Japan) fire-fighting and fire resistance test evaluation services document (on June 1st, 2010, revised edition)
4.10.2 heat release test is carried out, in order to measure calorific value and heat generation rate (200kW/m2During residue
Between).Result is shown in Table 1.
The measurement of sound-absorption coefficient
Use and measure sound-absorption coefficient according to the vertical incidence sound-absorbing measuring machine of ASTM E1050.Sample
A diameter of 29mm.Result is shown in Figure 3.Air space or air gap is all employ in each example
And sample (aforementioned sample 1 or 2).
Example 1-1: the thickness of sample 1, air space or air gap is 3mm
Example 1-2: the thickness of sample 1, air space or air gap is 4mm
Example 1-3: the thickness of sample 1, air space or air gap is 8mm
Example 1-4: the thickness of sample 1, air space or air gap is 13mm
Example 2: sample 2, without air space
Example 3: sample 1, without air space
Tearing strength is measured
According to JISL1096C, measure tearing strength for sample 1 and 2.Draw speed is
15cm/min, and clamping interval (the specimen length between fixture) is 2.5cm, and along being perpendicular to
The flow direction of (CD: horizontal) web and the flow direction (MD: direction longitudinally) measures of film web.
Result is shown in Table 2.
Table 1
Calorific value (MJ/m2) | Cycle is more than 200kw/m2(second) | |
Sample 1 | 5.2 | 6 |
Sample 2 | 8.4 | 4 |
Standard | 8MJ/m2Or it is less | Less than 10 seconds |
Table 2
Drawing reference numeral
1 soundproofing member
2 acoustic decorative sheet
10 film layers
11 adhesive phases
12 glass fabric layer
13 micropores
14 decoration coatings
15 air space or air gap
16 substrates or surface
20 spacer elements
H interval height
Claims (8)
1. an acoustic decorative sheet, including:
Film layer;
Glass fabric layer;And
The adhesive phase separated with described glass fabric layer by described film layer, described adhesive phase glues
It is attached to described film layer and described glass fabric layer;
Wherein said film layer and described adhesive phase have be disposed through therein multiple micro-
Hole, described micropore has a diameter in 20 to 500 micrometer ranges, and micropore
Number is 2 to 700/cm2;And
Wherein said glass cloth has the thickness in 10 to 300 micrometer ranges, and described
Micropore does not extends in described glass fabric layer.
Acoustic decorative sheet the most according to claim 1, wherein said glass cloth has
30g/cm3To 350g/cm3In the range of weight.
Acoustic decorative sheet the most according to claim 1, wherein said micropore have 50 to
Diameter in 250 micrometer ranges.
Acoustic decorative sheet the most according to claim 1, the number of wherein said micropore be 10 to
200/cm2。
Acoustic decorative sheet the most according to claim 1, wherein said film layer is polymeric film
Layer.
Acoustic decorative sheet the most according to claim 1, wherein said film layer is adhered directly to institute
State on adhesive phase, and described glass fabric layer is adhered directly on described adhesive phase.
7. a soundproofing member, including:
Acoustic decorative sheet described in claim 1-6;
Substrate;With
Air gap, it makes described acoustic decorative sheet be at least partially separated with described substrate.
Soundproofing member the most according to claim 7, also includes having height and limit described air gap
Spacer element, described spacer element makes described substrate separate with described glass fabric layer, wherein
The thickness of described air gap or the height of described spacer element are in the range of 2mm to 50mm.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011-183356 | 2011-08-25 | ||
JP2011183356A JP6110056B2 (en) | 2011-08-25 | 2011-08-25 | Sound absorbing material |
PCT/US2012/052044 WO2013028850A1 (en) | 2011-08-25 | 2012-08-23 | Acoustic decorative material |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103733252A CN103733252A (en) | 2014-04-16 |
CN103733252B true CN103733252B (en) | 2016-11-30 |
Family
ID=
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3628626A (en) * | 1970-03-25 | 1971-12-21 | American Standard Inc | Quiet wall |
CN102057421A (en) * | 2008-04-14 | 2011-05-11 | 3M创新有限公司 | Multilayer sound absorbing sheet |
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3628626A (en) * | 1970-03-25 | 1971-12-21 | American Standard Inc | Quiet wall |
CN102057421A (en) * | 2008-04-14 | 2011-05-11 | 3M创新有限公司 | Multilayer sound absorbing sheet |
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