CN102689477B - Inhale acoustic dampening composite structure - Google Patents
Inhale acoustic dampening composite structure Download PDFInfo
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- CN102689477B CN102689477B CN201110068901.0A CN201110068901A CN102689477B CN 102689477 B CN102689477 B CN 102689477B CN 201110068901 A CN201110068901 A CN 201110068901A CN 102689477 B CN102689477 B CN 102689477B
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Abstract
The invention provides a kind of suction acoustic dampening composite structure, closely connectedly to be made up of at least one adhesive-bonded fabric fibrage and at least one polyethylene film institute, wherein, this adhesive-bonded fabric fibrage is with regenerated environment protecting fibrous material, adopt the fiber stack layer that adhesive-bonded fabric worker method is made, thickness is at more than 1mm (containing), and the thickness of this polyethylene film is then between 0.009mm ~ 0.1mm.
Description
[technical field]
The invention relates to a kind of suction acoustic dampening composite structure, refer to a kind of at least one adhesive-bonded fabric (NonWoven) fibrage of being made up of regenerated environment protecting fibrous material especially and at least one polyethylene film institute is closely connected forms, and splendid suction soundproof effect can be had.
[background technology]
In general everyday environments, have and manyly must apply to good sound-absorbing and/or soundproof effect part.Modally be exactly, for asking ride comfort and good acoustics in sedan limousine, therefore the material with good sound-absorbing and soundproof effect must be used, with isolated and absorb the noisy sound of external medium-high frequency, and the medium and low frequency noise itself produced when vehicle travels and resonance.If sound-absorbing and soundproof effect are not good, be namely difficult to the sense of worth showing sedan limousine, the quality of sound-absorbing and sound insulation effect when therefore sound-absorbing and acoustic material are used for automobile inside, can be demonstrated, very important.Separately commonly, current household is all neighbour and occupy, therefore in general home environment, also often has and must strengthen sound-absorbing and soundproof effect part.If such as oneself is provided with KTV sound equipment, then must strengthen sound-absorbing and the soundproof effect of tone chamber, to show entertainment effect of singing merrily, and exempt from disturb neighbours and undermine friendship.And for example household intercepts ambient noise or noise (such as: the sound that road car travels, alarm are dashed forward the operation sound of cry and scream sound or neighbours' air conditioner of loud piping, child neighbours, the noisy sound etc. of KTV even neighbours sing merrily), so also can selective employing sound-absorbing and/or acoustic material arrange on building materials or door and window gap blocking.To sum up, all show the attention at present for sound-absorbing and soundproof effect.
" sound-absorbing " is different with the definition of " sound insulation ", " sound-absorbing " focuses on acoustic absorption and is weakened until disappear, its principle makes sound-absorbing material accept incident speech ripple to enter, then sound wave energy can impel the elastomer in sound-absorbing material vibrate or make air molecule in material hole clash into friction mutually, and cause mechanical energy to decay, and be heat energy by sonic vibration energy conversion, sound wave amplitude is diminished, and volume also just diminishes naturally." sound insulation " then focuses on and sound reflection or refraction is made it to isolate from outside receiving terminal, reaches the effect blocked.Therefore " sound-absorbing " and " sound insulation " the two in action principle and to use in effect be different, be generally enhancement sound-absorbing effect, incident acoustic wave should be made easily to inject sound-absorbing material inside, so that at sound-absorbing material attenuated inside; And be promote soundproof effect, then should reduce incident acoustic wave and enter sound-absorbing material and make it be blocked.Above-mentioned two kinds of mechanism are often conflicting, and therefore same material is often difficult to take into account " sound-absorbing " and " sound insulation " effect, and must to be arranged in pairs or groups application by multilayer mode, can represent and preferably inhale soundproof effect.
Generally speaking, in daily life, the sound that touches probably can be divided into high frequency, intermediate frequency and low frequency three kinds.Wherein, medium-high frequency sound is the little person of frequency high amplitude, and the sound is comparatively ear-piercing, makes us just listening namely being difficult to stand, therefore how to absorb medium-high frequency sound fast, is namely sound-absorbing material top priority.And in known numerous sound-absorbing material, some biases toward can have good absorbability to high frequency audio, but it is lasting to be unfavorable for absorbing intermediate frequency sound and sound absorbing power, otherwise some sound-absorbing material focuses on and absorbs intermediate frequency sound, but just absorbs not properly high frequency audio.Therefore be still difficult to find a kind of material or composite are enough to centering high frequency audio and all have good sound-absorbing effect.
Because the wavelength of sound wave and frequency are inversely proportional to, sound-absorbing material thickness will reach more than 1/4th of wave length of sound (amplitude) and can reach sound-absorbing effect completely in theory.And the wavelength of medium and low frequency noise is longer, if material thickness is very little relative to the ratio of wavelength, then the acoustic wave energy of medium and low frequency noise directly will stride across material, and not easily produces decay in sound-absorbing material inside.Therefore, for the absorption of medium and low frequency sound wave, only can not expect to rely on the attenuating mechanism that sound wave injects sound-absorbing material inside and reach, so often get half the result with twice the effort.
The present inventor is engaged in research and the exploitation manufacture work of various adhesive-bonded fabric material for many years, various manufacture engineering methods for adhesive-bonded fabric all have deep experience, also know very well that the use of adhesive-bonded fabric is rather extensive, and someone attempts seeking obtaining the suction acoustic material of good result from the material prescription of adhesive-bonded fabric and manufacturing engineering method, but does not have gratifying result to occur so far yet always.Therefore how to invent a kind of good suction acoustic material manufactured with regenerated environment protecting material, be the target that the present inventor makes great efforts and develops.
[summary of the invention]
Main purpose of the present invention is to provide a kind ofly inhales the good suction acoustic dampening composite structure of soundproof effect, centering high frequency audio and medium and low frequency sound can all have good sound-absorbing effect.
Creation of the present invention focuses on, with innovative thinking, the physical mechanism of sound insulation and sound-absorbing is done effective combination, it creates the superficial layer of a high damping characteristic on sound-absorbing material surface, namely on material list surface layer, effective energy attenuation is produced, to make the easier produce power attenuation of sound wave entering material internal before making sound wave not yet enter sound-absorbing material.Action principle of the present invention for convenience of description, first to suppose that he explains by thing, so comparatively easily understands.Supposing that sound wave transmits molecule is a table tennis, then, when table tennis impact surface layer is the material of hard wall or elastic surface, can produce corresponding obvious bounce-back, that is acoustic reflection, and this kind of situation is that soundproof effect is good, but obviously sound-absorbing effect is not good.Otherwise if the material that table tennis clashes into is when having inelastic superficial layer again as very high in dampings such as cloth matter nettle or mud, then the Impact energy major part of table tennis can be absorbed by superficial layer, and makes lifting force become very little.Therefore, sound wave (table tennis) is even if not yet enter material internal, but its energy also can not reflect in the decay of sound absorber surface, namely the present invention creates the material having sound-absorbing and soundproof effect concurrently with this action principle, and the present invention is because of the width that can increase, so not to be associated with frequency etc. machine-processed impact by wavelength, do not have the restriction that low-frequency effect is not good, all can produce frequency range more widely and well inhale deadening.
The present invention designs and a kind of inhales acoustic dampening composite structure, by least one adhesive-bonded fabric fibrage and at least one polyethylene film institute is closely connected forms; This adhesive-bonded fabric fibrage is the fiber stack layer made with adhesive-bonded fabric worker method, and molding thickness is at more than 1mm (containing), and the thickness of this polyethylene film is then between 0.009mm ~ 0.1mm; This unfavorable sound wave air molecule in polyethylene film surface passes, and air molecule can be tackled, because thickness is very thin, its elasticity is deteriorated, then there is the absorption of damping, the decay of certain degree is first done when making acoustic wave energy arrive polyethylene film surface, then when the sound wave of non-complete attenuation enters adhesive-bonded fabric fibrage inside by polyethylene film, vibrate through fibrous elasticity and do molecules strike friction at interfiber pore, and cause sound wave mechanical energy more to decay, to reach effect that sound insulation has sound-absorbing concurrently.
Below by technical scheme of the present invention, details are as follows:
A kind of inhale acoustic dampening composite structure, it is characterized in that: by least one adhesive-bonded fabric fibrage and at least one polyethylene film institute is closely connected forms; This adhesive-bonded fabric fibrage is the fiber stack layer made with adhesive-bonded fabric worker method, and molding thickness is then at 1mm or more than 1mm; The thickness of this polyethylene film is then between 0.009mm ~ 0.1mm.
Wherein, to be closely connectedly made up of an adhesive-bonded fabric fibrage and polyethylene film institute, this adhesive-bonded fabric fibrage is the fiber stack layer made with adhesive-bonded fabric worker method, and molding thickness is then at 1mm or more than 1mm; The thickness of this polyethylene film is then between 0.009mm ~ 0.1mm.
Wherein, more tile in the fibrolaminar surface of this adhesive-bonded fabric closely connected one second polyethylene film, and the thickness of this second polyethylene film is between 0.009mm ~ 0.1mm.
Wherein, more tile in the surface of this second polyethylene film closely connected one second adhesive-bonded fabric fibrage, and this second adhesive-bonded fabric fibrage is the fiber stack layer made with adhesive-bonded fabric worker method, and molding thickness is at 1mm or more than 1mm.
Wherein, more tile in this fibrolaminar surface of the second adhesive-bonded fabric closely connected 1 the 3rd polyethylene film, and the thickness of the 3rd polyethylene film is between 0.009mm ~ 0.1mm.
Wherein, more tile in the surface of the 3rd polyethylene film closely connected 1 the 3rd adhesive-bonded fabric fibrage, and the 3rd adhesive-bonded fabric fibrage is the fiber stack layer made with adhesive-bonded fabric worker method, and molding thickness is at 1mm or more than 1mm.
Wherein, more tile in the 3rd fibrolaminar surface of adhesive-bonded fabric closely connected 1 the 4th polyethylene film, and the thickness of the 4th polyethylene film is between 0.009mm ~ 0.1mm.
Advantage of the present invention and effect are: the present invention inhales acoustic dampening composite structure, at least one adhesive-bonded fabric (NonWoven) fibrage be made up of regenerated environment protecting fibrous material and at least one polyethylene film institute closely connectedly form, and splendid suction soundproof effect can be had, especially centering high frequency audio and medium and low frequency sound all have good sound-absorbing effect.
[accompanying drawing explanation]
Fig. 1 is the organigram of first embodiment of the invention " individual layer single card kenel "
Fig. 2 is the organigram of second embodiment of the invention " individual layer double applying kenel "
Fig. 3 is the organigram of third embodiment of the invention " double-deck single card kenel "
Fig. 4 is the organigram of fourth embodiment of the invention " double-deck double applying kenel "
Fig. 5 is the organigram of fifth embodiment of the invention " three layers of single card kenel "
Fig. 6 is the organigram of sixth embodiment of the invention " three layers of double applying kenel "
Number in the figure is described as follows:
10,11,12,13,14,5---inhales acoustic dampening composite
20---adhesive-bonded fabric fibrage 21---second adhesive-bonded fabric fibrage
22---the 3rd adhesive-bonded fabric fibrage 30---polyethylene film
31---second polyethylene film 32---the 3rd polyethylene film
33---the 4th polyethylene film
[detailed description of the invention]
Refer to shown in Fig. 1, first embodiment of the invention entirety is a suction acoustic dampening composite 10, structure is by least one adhesive-bonded fabric fibrage 20 and at least one polyethylene film 30 (Polyethylene substantially, PE) closely connected composition, therefore Fig. 1 be express inhale acoustic dampening composite 10 by an adhesive-bonded fabric fibrage 20 and a polyethylene film 30 the closely connected organigram formed, be referred to as " individual layer single card kenel ".Wherein, this adhesive-bonded fabric fibrage 20 is the fiber stack layers made with adhesive-bonded fabric worker method, can be made up of regenerated environment protecting fibrous material, to reach the effect that environmental protection and energy saving subtract carbon, but does not get rid of and can be made up of any fibrous material; Molding thickness is at more than 1mm (containing), and Main Function is to support out that one (at least one) climbs assorted forming by most fiber is staggered, and inside has the fiber stack layer of most staggered solid space; The thickness of this polyethylene film 30 is then between 0.009mm ~ 0.1mm.During combination, this adhesive-bonded fabric fibrage 20 must be quite with the size of this polyethylene film 30, tile in order to this polyethylene film 30 closely connected on the surface of this adhesive-bonded fabric fibrage 20, again with various suitable way by the in addition closely connected combination of polyethylene film 30 and both adhesive-bonded fabric fibrages 20, such as: the two closely connected combination can be made at periphery with the support pattern that framework is tightened, or available film, burn paste, gummed or heat fuse the means such as conjunction makes on the closely connected surface being incorporated into this adhesive-bonded fabric fibrage 20 of polyethylene film 30.
When installing uses, make sound incident direction faced by the polyethylene film 30 on suction acoustic dampening composite 10, when the air molecule transmitting acoustic wave energy touches this polyethylene film 30, can first be stopped by the surface layer of polyethylene film 30 and absorb energy, therefore only have the energy of non-complete attenuation part can be entered adhesive-bonded fabric fibrage 20 by this polyethylene film 30 inner; Then namely interlock in solid space at the majority of this adhesive-bonded fabric fibrage 20 inside, impact mutually through the multi-direction reflection of air molecule, refraction etc. again, and continuity friction energy-dissipating made by the most fibers evoking this adhesive-bonded fabric fibrage 20, and make acoustic wave energy second time change frictional heat energy into, cause acoustic wave energy significantly exhaustion, and this polyethylene film 30 cannot be passed again, therefore reach the effect of high-efficiency sound-absorbing.Therefore known, when using the suction acoustic dampening composite 10 of first embodiment of the invention, double action effect of high-efficiency sound-absorbing and sound insulation can be reached.
As mentioned above, the present invention inhales acoustic dampening composite and to be substantially closely connectedly made up of at least one adhesive-bonded fabric fibrage and at least one polyethylene film institute at structure.Therefore the suction acoustic dampening composite 11 of second embodiment of the invention as shown in Figure 2, to be closely connectedly made up of, to be referred to as " individual layer double applying kenel " adhesive-bonded fabric fibrage 20, polyethylene film 30 and one second polyethylene film 31 institute.Wherein, this adhesive-bonded fabric fibrage 20 is the fiber stack layers made with adhesive-bonded fabric worker method, can be made up of regenerated environment protecting fibrous material, to reach the effect that environmental protection and energy saving subtract carbon, but does not get rid of and can be made up of any fibrous material; Molding thickness is at more than 1mm (containing), and Main Function is to support out that one (at least one) climbs assorted forming by most fiber is staggered, and inside has the fiber stack layer of most staggered solid space; The thickness of this polyethylene film 30 and the second polyethylene film 31 is then all between 0.009mm ~ 0.1mm.During combination, this adhesive-bonded fabric fibrage 20 must be quite with the size of this polyethylene film 30 and the second polyethylene film 31, tile closely connected on the surface of this adhesive-bonded fabric fibrage 20 respectively in order to this polyethylene film 30 and the second polyethylene film 31, again with various suitable way by this adhesive-bonded fabric fibrage 20 and this polyethylene film 30 and with the closely connected combination simultaneously of this second polyethylene film 31, such as: the closely connected combination of three can be made at periphery with the support pattern that framework is tightened, or available film, burn and paste, gummed or heat fuse the means such as conjunction makes this polyethylene film 30 with on this second polyethylene film 31 respectively closely connected surface being incorporated into this adhesive-bonded fabric fibrage 20, acoustic dampening composite 11 is inhaled to form.
When installing uses, polyethylene film 30 on this suction acoustic dampening composite 11 and this second polyethylene film 31 all can in the face of sound incident directions, when the air molecule transmitting acoustic wave energy touches this polyethylene film 30 or this second polyethylene film 31, can first be stopped by the surface layer of polyethylene film 30 and this second polyethylene film 31 and absorb energy, therefore only have the portion of energy of non-complete attenuation can be entered adhesive-bonded fabric fibrage 20 by this polyethylene film 30 and this second polyethylene film 31 inner; And remaining acoustic wave energy interlocks in solid space at the majority of this adhesive-bonded fabric fibrage 20 inside, impact mutually through the multi-direction reflection of air molecule, refraction etc. again, and continuity friction energy-dissipating made by the most fibers evoking this adhesive-bonded fabric fibrage 20, and make acoustic wave energy second time change frictional heat energy into, cause acoustic wave energy significantly exhaustion, and this polyethylene film 30 and this second polyethylene film 31 cannot be passed again, therefore reach the effect of high-efficiency sound-absorbing.Therefore known, when using the suction acoustic dampening composite 10 of second embodiment of the invention, except the double action effect can reaching the high-efficiency sound-absorbing identical with the first embodiment and sound insulation, have more all spendable excellent action and efficacy in standby two sides.
Refer to shown in Fig. 3, the suction acoustic dampening composite 12 of third embodiment of the invention is by polyethylene film 30, adhesive-bonded fabric fibrage 20,1 second polyethylene film 31 and one second adhesive-bonded fabric fibrage 21 institute is closely connected forms, and is referred to as " double-deck single card kenel ".Wherein, this adhesive-bonded fabric fibrage 20 and this second adhesive-bonded fabric fibrage 21 are all the fiber stack layers made with adhesive-bonded fabric worker method, molding thickness is all at more than 1mm (containing), for supporting out that at least one (the present embodiment is two) climbs assorted forming by most fiber is staggered, inside has the fiber stack layer of most staggered solid space; The thickness of this polyethylene film 30 and the second polyethylene film 31 is then all between 0.009mm ~ 0.1mm.During combination, this adhesive-bonded fabric fibrage 20 and this second adhesive-bonded fabric fibrage 21 must be quite with the size of this polyethylene film 30 and the second polyethylene film 31, tile on the closely connected surface being incorporated into this adhesive-bonded fabric fibrage 20 respectively in order to this polyethylene film 30 and the second polyethylene film 31, then this second adhesive-bonded fabric fibrage 21 tiles on the closely connected another side surface being incorporated into the second polyethylene film 31 again, equally again with various suitable way by this polyethylene film 30, adhesive-bonded fabric fibrage 20, second polyethylene film 31 and the second adhesive-bonded fabric fibrage 21 4 are combined, such as: four closely connected combinations can be made at periphery with the support pattern that framework is tightened, or available film, burn and paste, gummed or heat fuse the means such as conjunction makes this polyethylene film 30 with on this second polyethylene film 31 respectively closely connected surface being incorporated into this adhesive-bonded fabric fibrage 20 and this second adhesive-bonded fabric fibrage 21.From comparison diagram 2 and 3, the suction acoustic dampening composite 12 of third embodiment of the invention more increases by one second adhesive-bonded fabric fibrage 21 on the contexture of the second embodiment.When installing uses, be also by its polyethylene film 30 in the face of sound incident direction is advisable, the so i.e. result of use with high-efficiency sound-absorbing and sound insulation same with the first embodiment.If then some sound wave because of energy comparatively large not and by adhesive-bonded fabric fibrage 20 is absorbed and pass time, namely by this second polyethylene film 31 and this second adhesive-bonded fabric fibrage 21 inside can be entered, then namely can be subject to the second heavy suction deadening in this second adhesive-bonded fabric fibrage 21 inside.
The present invention inhale acoustic dampening composite constructively by least one adhesive-bonded fabric fibrage and at least one polyethylene film under the closely connected basic framework formed, 3rd embodiment is added one the 3rd polyethylene film 32, make on the closely connected outer surface being incorporated into this second adhesive-bonded fabric fibrage 21, then namely form the 4th embodiment shown in Fig. 4 and inhale the formation of acoustic dampening composite 13, be referred to as " double-deck double applying kenel ".When installing uses, as described in the second embodiment, polyethylene film 30 on this suction acoustic dampening composite 13 and the 3rd polyethylene film 32 all can in the face of sound incident directions, sound wave is made to enter in this adhesive-bonded fabric fibrage 20 or this second adhesive-bonded fabric fibrage 21, to reach efficient action and efficacy of inhaling sound insulation.And if some sound wave because of energy comparatively large not and headed by the adhesive-bonded fabric fibrage 20 that is introduced into or the second adhesive-bonded fabric fibrage 21 absorbs and pass time, all namely can be subject to the suction deadening of the second weight after entering this second adhesive-bonded fabric fibrage 21 or adhesive-bonded fabric fibrage 20 by this second polyethylene film 31.
Closing under the invention theory that above-mentioned all embodiments are identical, 4th embodiment is added one the 3rd adhesive-bonded fabric fibrage 22, make on the closely connected outer surface being incorporated into the 3rd polyethylene film 32, the suction acoustic dampening composite 14 then namely forming the 5th embodiment shown in Fig. 5 is formed, and is referred to as " three layers of single card kenel ".Therefore not and the sound wave absorbed for this second adhesive-bonded fabric fibrage 21 penetrate the 3rd polyethylene film 32 after namely can enter in the 3rd adhesive-bonded fabric fibrage 22, to be subject to triple suction deadening.And the 5th embodiment is added one the 4th polyethylene film 33, make on the closely connected outer surface being incorporated into the 3rd adhesive-bonded fabric fibrage 22, then namely form the suction acoustic dampening composite 15 of the 6th embodiment shown in Fig. 6, be referred to as " three layers of double applying kenel ", it can carry out continuously triple suction deadenings, with converting acoustic waves in invisible to sound wave.
From illustrating above, the present invention inhales acoustic dampening composite basic framework and to be closely connectedly made up of at least one adhesive-bonded fabric fibrage and at least one polyethylene film institute, wherein, adhesive-bonded fabric fibrage is the fiber stack layer made with adhesive-bonded fabric worker method, molding thickness is then at more than 1mm (containing), and the thickness of polyethylene film is then between 0.009mm ~ 0.1mm.Therefore the present invention can by by an adhesive-bonded fabric fibrage and a polyethylene film the basic kenel of closely connected " the individual layer single card kenel " formed, then also can have and add " the individual layer double applying kenel " of a polyethylene film in the another side of adhesive-bonded fabric fibrage by this basic kenel and change kenel.Then more can by the quantity increasing adhesive-bonded fabric fibrage and polyethylene film, and produce " double-deck single card kenel ", " double-deck double applying kenel ", " three layers of single card kenel " and " three layers of double applying kenel " etc. and more change kenel.As for the suction acoustic dampening composite will installing any kenel, look closely and inhale sound insulation processing environment and volume and determine.The present invention inhales acoustic dampening composite composition and tests, and confirm respond well, side proposes this case application according to this, by attached for test report copy is sincerely, please also refer to.
Claims (2)
1. inhale acoustic dampening composite structure for one kind, there is an adhesive-bonded fabric fibrage, this adhesive-bonded fabric fibrage is the fiber stack layer made with adhesive-bonded fabric worker method, molding thickness is then at more than 1mm, it is characterized in that: tile in this at least one surface of adhesive-bonded fabric fibrage a closely connected polyethylene film, and the thickness of this polyethylene film is between 0.009mm ~ 0.1mm.
2. suction acoustic dampening composite structure according to claim 1, is characterized in that: more to tile on the surface closely connected one second polyethylene film at fibrolaminar another of this adhesive-bonded fabric, the thickness of this second polyethylene film is between 0.009mm ~ 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110068901.0A CN102689477B (en) | 2011-03-22 | 2011-03-22 | Inhale acoustic dampening composite structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110068901.0A CN102689477B (en) | 2011-03-22 | 2011-03-22 | Inhale acoustic dampening composite structure |
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| CN102689477A CN102689477A (en) | 2012-09-26 |
| CN102689477B true CN102689477B (en) | 2016-02-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102966226B (en) * | 2012-11-27 | 2015-06-24 | 南通王子家居用品有限公司 | Sound-absorbing decorative material and production method thereof |
| DE102017107538A1 (en) * | 2017-04-07 | 2018-10-11 | Ipetronik Gmbh & Co. Kg | Control device and method for noise reduction of auxiliary equipment for a vehicle |
| EP3570560B1 (en) | 2017-04-26 | 2021-01-20 | Dalian University Of Technology | Broadband ultrathin sound wave diffusion structure |
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| CN1329985A (en) * | 2001-07-30 | 2002-01-09 | 中国兵器工业第五三研究所 | Components of composite bullet-resistant plate and its preparing process |
| CN1446278A (en) * | 2000-06-02 | 2003-10-01 | 索莱侬纺织技术公司 | Sound and thermal insulating non-woven synthetic sheet material |
| CN2756440Y (en) * | 2004-08-02 | 2006-02-08 | 三香科技股份有限公司 | Structure of sound absorption composite material |
| CN1937031A (en) * | 2005-07-13 | 2007-03-28 | 丰和纤维工业株式会社 | Soundproofing material for vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09100617A (en) * | 1995-10-05 | 1997-04-15 | Dantani Plywood Co Ltd | Laying type sound insulating wood floor material |
| JP3264230B2 (en) * | 1997-09-18 | 2002-03-11 | 三菱自動車工業株式会社 | Vehicle interior materials |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1446278A (en) * | 2000-06-02 | 2003-10-01 | 索莱侬纺织技术公司 | Sound and thermal insulating non-woven synthetic sheet material |
| CN1329985A (en) * | 2001-07-30 | 2002-01-09 | 中国兵器工业第五三研究所 | Components of composite bullet-resistant plate and its preparing process |
| CN2756440Y (en) * | 2004-08-02 | 2006-02-08 | 三香科技股份有限公司 | Structure of sound absorption composite material |
| CN1937031A (en) * | 2005-07-13 | 2007-03-28 | 丰和纤维工业株式会社 | Soundproofing material for vehicle |
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