FR2722811A1 - Combined thermal and acoustic insulation panel - Google Patents

Combined thermal and acoustic insulation panel Download PDF

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Publication number
FR2722811A1
FR2722811A1 FR9409084A FR9409084A FR2722811A1 FR 2722811 A1 FR2722811 A1 FR 2722811A1 FR 9409084 A FR9409084 A FR 9409084A FR 9409084 A FR9409084 A FR 9409084A FR 2722811 A1 FR2722811 A1 FR 2722811A1
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France
Prior art keywords
panel
density
foam
acoustic
thickness
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Granted
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FR9409084A
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French (fr)
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FR2722811B1 (en
Inventor
Pual Bertrand
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Recticel NV SA
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Recticel NV SA
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Priority to FR9409084A priority Critical patent/FR2722811B1/en
Publication of FR2722811A1 publication Critical patent/FR2722811A1/en
Application granted granted Critical
Publication of FR2722811B1 publication Critical patent/FR2722811B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/32—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/022—Mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/027—Thermal properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • E04B1/88—Insulating elements for both heat and sound
    • E04B1/90—Insulating elements for both heat and sound slab-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0264—Polyester
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0285—Condensation resins of aldehydes, e.g. with phenols, ureas, melamines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/06—Open cell foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/08—Closed cell foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08—Dimensions, e.g. volume
    • B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels
    • 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
    • E04B2001/8461—Solid slabs or blocks layered

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Abstract

The panel consists of an acoustic insulating layer of a supple or semi-rigid polyurethane foam with open or semi-open cells and 2-30 mm thick, and a thermal insulation layer of polyurethane or phenolic foam, expanded or extruded polyester which has closed cells, is rigid and 30-120 mm thick. The thickness of the thermal insulation layer is \-1\2 times the thickness of the acoustic insulation layer. Pref. the acoustic insulation layer is made from small pieces of polyurethane foam, stuck together with adhesive and with or without compression to give it the desired density of 30-500 kg/m<3>. The density of the thermal insulation layer is 10-35 kg/m<3>. The two layers of the panel are joined by adhesive

Description

Panneau composite d'isolation thermique et acoustique et procédé de fabrication de tels panneaux.Composite panel for thermal and acoustic insulation and method of manufacturing such panels.

La présente invention concerne un panneau pour isolation acoustique et thermique, ce panneau ayant outre ses qualités d'isolation à la fois thermique et acoustiques une rigidité suffisante pour pouvoir être employé pour faire des cloisons et même dans certains cas des planchers. The present invention relates to a panel for acoustic and thermal insulation, this panel having, in addition to its qualities of both thermal and acoustic insulation, sufficient rigidity to be able to be used for making partitions and even in certain cases floors.

Le panneau selon la présente invention est un panneau composite constitué par l'association d'un panneau isolant au point de vue acoustique, en mousse de polyuréthane, à cellules ouvertes ou semi-ouvertes, d'une épaisseur de 2 à 30 mm et d'un panneau isolant au point de vue thermique, à cellules fermées, d'une épaisseur de 30 à 120 mm. The panel according to the present invention is a composite panel formed by the association of an acoustically insulating panel made of polyurethane foam, with open or semi-open cells, with a thickness of 2 to 30 mm and 'a thermally insulating, closed-cell panel with a thickness of 30 to 120 mm.

Le panneau à isolation acoustique a une densité comprise entre 30 et 500 kg/m3, il peut être flexible ou semi-rigide. Il peut avantageusement être fait en mousse agglomérée, c'est-à-dire en mousse de polyuréthane souple qui est fractionnée en petits morceaux qui sont ensuite agglomérés par collage; lorsque l'agglomération est faite par simple collage, la densité du produit est de l'ordre de 60 kg/m3; mais on peut en plus du collage comprimer le produit qui a alors une densité d'environ 300 à 450 kg/m3 pouvant aller jusqu'à 500 kg/m3. The acoustic insulation panel has a density between 30 and 500 kg / m3, it can be flexible or semi-rigid. It can advantageously be made of agglomerated foam, that is to say of flexible polyurethane foam which is divided into small pieces which are then agglomerated by gluing; when the agglomeration is made by simple gluing, the density of the product is of the order of 60 kg / m3; but in addition to the gluing, it is possible to compress the product which then has a density of approximately 300 to 450 kg / m 3 which can range up to 500 kg / m 3.

Le panneau à isolation thermique est rigide. Il a une densité comprise entre 10 et 35 kg/m3 et est toujours plus épais que le panneau à isolation acoustique; son épaisseur étant au moins une fois et demie plus grande que celle du panneau à isolation acoustique. Ce panneau est constitué de tout matériau isolant en plastique alvéolaire tel par exemple que mousse de polyuréthane, polyester expansé ou extrudé, mousses phénoliques. The thermally insulated panel is rigid. It has a density between 10 and 35 kg / m3 and is always thicker than the sound insulation panel; its thickness being at least one and a half times greater than that of the sound-insulating panel. This panel is made of any insulating material in cellular plastic such as, for example, polyurethane foam, expanded or extruded polyester, phenolic foams.

En particulier, le panneau à isolation thermique peut être en mousse de polyuréthane rigide fabriquée en continu sur tapis mobile. In particular, the thermally insulated panel can be made of rigid polyurethane foam produced continuously on a moving belt.

Lorsque l'on fabrique en continu une mousse polyuréthane liquide sur un tapis mobile, il est nécessaire de disposer deux parements un parement inférieur et un parement supérieur. When continuously manufacturing a liquid polyurethane foam on a moving belt, it is necessary to have two facings, a lower facing and an upper facing.

Si l'on emploie des parements de natures différentes, il faut les choisir de façon qu'ils aient les merles caractéristiques de tension ; faute de quoi, le panneau va se déformer (tuilage). If one uses facings of different natures, it is necessary to choose them so that they have the characteristic blackbirds of tension; otherwise, the panel will deform (curl).

En conséquence, lorsque l'on fabrique un panneau composite selon la présente invention constitué par l'association d'un pannes acoustique (de relativement faible épaisseur) et d'un panneau thermique (d'épaisseur relativement importante), il faudra disposer sur la face du panneau thermique opposée au panneau acoustique : soit un autre panneau acoustique avant les mêmes caractéristiques de tension; soit un parenent en feuille de très faible épaisseur ayant les en merles c1ra(-téristlques de tension. Consequently, when manufacturing a composite panel according to the present invention constituted by the association of an acoustic purlin (of relatively small thickness) and of a thermal panel (of relatively large thickness), it will be necessary to have on the face of the thermal panel opposite the acoustic panel: either another acoustic panel before the same voltage characteristics; either a parent in sheet of very small thickness having the c1ra merles (-teristlques of tension.

Dans le cas où le panneau acoustique est en aggloméré, le deuxième panneau acoustique peut ne pas avoir la meme épaisseur : dans ce cas, on jouera sur les deux paramètres que sont l'épaisseur et la densité pour obtenir les mêmes caractéristiques de tension. If the acoustic panel is made of chipboard, the second acoustic panel may not have the same thickness: in this case, we will play on the two parameters which are the thickness and the density to obtain the same tension characteristics.

Les panneaux, selon la présente invention, présentent l'avantage d'être isolants à la fois au point de vue acoustique et thermique et, surtout lorsque le panneau acoustique est en aggloméré, permettent une très grande variété d'utilisation en comprimant plus ou moins l'aggloméré pour obtenir la densité voulue. En poussant la compression jusqu'à une :ensité de 500 kg/m3, on peut employer le panneau selon l'invention comme panneau de plancher. The panels according to the present invention have the advantage of being insulating both from an acoustic and thermal point of view and, especially when the acoustic panel is made of chipboard, allow a very wide variety of use by compressing more or less. the agglomerate to obtain the desired density. By pushing the compression up to an assembly of 500 kg / m 3, the panel according to the invention can be used as a floor panel.

Dans le cas où le panneau acoustique est utilisé comme parement de la mousse rigide constituant le panneau thermique lors de la fabrication en continu de la mousse rigide, les deux panneaux se solidarisent l'un sur l'autre lors du processus de fabrication. In the case where the acoustic panel is used as a facing of the rigid foam constituting the thermal panel during the continuous manufacture of the rigid foam, the two panels are secured to one another during the manufacturing process.

Dans les autres caS, l'association des deux panneaux se fait par collage. In the other cases, the association of the two panels is done by gluing.

Cette association donne d'excellents résultats parce que le panneau rigide, à cellules fermées, a de très bonnes caractéristiques 3' isolation thermique ; alors que le panneau souple ou semi-rigide à cellules ouvertes ou semi-ouvertes a de bonnes caractéristiques au point de vue acoustique, mais il laisse passer l'air et n'est donc pas très bon au point de vue thermique. This combination gives excellent results because the rigid panel, with closed cells, has very good thermal insulation characteristics; whereas the flexible or semi-rigid panel with open or semi-open cells has good characteristics from the acoustic point of view, but it allows air to pass and is therefore not very good from a thermal point of view.

Claims (10)

RevendicationsClaims 1 Panneau composite destiné à l'isolation à la fois thermique et acoustique, caractérisé par le fait qu'il est constitué par l'association d'un panneau isolant au point de vue acoustique en mousse de polyuréthane à cellules ouvertes ou semi-ouvertes, souple ou semi-rigide d'une épaisseur de 2 a ?0 rtm et d'un panneau isolant au point de vue thermique, à cellules fermées, rigide et d'une épaisseur de 30 à 120 mm; le panneau thermique ayant une épaisseur au moins une fois et demie plus grande que celle du panneau acoustique. 1 Composite panel intended for both thermal and acoustic insulation, characterized by the fact that it is constituted by the association of an acoustically insulating panel made of polyurethane foam with open or semi-open cells, flexible or semi-rigid with a thickness of 2 a? 0 rtm and of a thermally insulating panel, closed cell, rigid and with a thickness of 30 to 120 mm; the thermal panel having a thickness at least one and a half times greater than that of the acoustic panel. 2" Panneau selon la revendication 1, dans lequel le panneau à isolation acoustique a une densité comprise entre 30 et 500 kg m3. 2. The panel of claim 1, wherein the sound-insulating panel has a density of between 30 and 500 kg m3. 3 Panneau selon la revendication 2, dans lequel le panneau à isolation acoustique est constitué en petits morceaux de mousse de polyuréthane fractionnés et agglomérés par collage ave ou sans compression suivant la densité désirée. 3 Panel according to claim 2, wherein the acoustic insulation panel consists of small pieces of polyurethane foam fractionated and agglomerated by gluing ave or without compression according to the desired density. 4 Panneau selon la revendication 1, dans lequel le panneau à isolation thermique est en matériau plastique alvéolaire tel que mousse de polyuréthane, mousse phénolique, polyester expansé ou extrudé. 4 Panel according to claim 1, wherein the thermally insulated panel is made of cellular plastic material such as polyurethane foam, phenolic foam, expanded or extruded polyester. 5 Panneau selon la revendication 1, dans lequel le panneau à isolation thermique est en mousse de polvuréthane rigide d'une densité comprise entre 10 et 35 kg m3 5 Panel according to claim 1, wherein the thermally insulated panel is made of rigid polyurethane foam with a density of between 10 and 35 kg m3 6 Panneau selon la revendication 5, dans lequel la mousse rigide de polyuréthane est fabriquée en continu sur tapis mobile et comporte deux parements, inférieur et supérieur, ayant les mêmes caraûtéristiques de tension. 6 Panel according to claim 5, wherein the rigid polyurethane foam is manufactured continuously on a moving belt and comprises two facings, lower and upper, having the same tension characteristics. 7 Procédé de fabrication de panneau composite selon la revendication 6, selon lequel on utilise comme parements inférieur et supérieur de la mousse agglomérée. 7 A method of manufacturing a composite panel according to claim 6, according to which agglomerated foam is used as the lower and upper facings. 8 Procédé de fabrication selon la revendication 7, dans lequel on utilise des panneaux de mousse agglomérée d'épaisseurs et de densité différentes en déterminant ces deux paramètres la densité de façon que les deux panneaux aient les mêmes caractéristiques de tension. 8 The manufacturing method according to claim 7, wherein using agglomerated foam panels of different thicknesses and density by determining these two parameters the density so that the two panels have the same tensile characteristics. 9. Procédé de fabrication de panneau composite selon la revendication 6, dans lequel l'un des parements est une feuille de très faible épaisseur l'autre parement étant un panneau de mousse agglomérée dont l'épaisseur et la densité sont déterminées de façon que ledit panneau ait les mêmes caractéristiques de tension. 9. A method of manufacturing a composite panel according to claim 6, wherein one of the facings is a very thin sheet, the other facing being an agglomerated foam panel, the thickness and density of which are determined so that said panel has the same voltage characteristics. 10. Panneau selon la revendication 4, dans lequel les panneaux thermique et acoustique sont assemblés l'un à l'autre par collage. 10. Panel according to claim 4, wherein the thermal and acoustic panels are assembled to each other by gluing.
FR9409084A 1994-07-22 1994-07-22 COMPOSITE THERMAL AND ACOUSTIC INSULATION PANEL AND METHOD FOR MANUFACTURING SUCH PANELS Expired - Fee Related FR2722811B1 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2746829A1 (en) * 1996-03-28 1997-10-03 Pittsburgh Corning France Thermally and acoustically insulated building wall
EP1199156A1 (en) * 2000-10-16 2002-04-24 Alessio S.r.l. Composite components made of sintered expanded resin and method for producing such components
EP1997617A3 (en) * 2007-05-23 2009-12-02 GUMMI-WELZ GmbH u. Co. KG GUMMI-KUNSTSTOFFTECHNIK-SCHAUMSTOFFE Insulating element with sandwich structure
US20100043327A1 (en) * 2008-08-19 2010-02-25 Jordan Byron Rothwell Insulated panel
EP2468957A1 (en) * 2010-12-23 2012-06-27 BIG Bau und Immobilienges.m.b.H. Acoustic baffling element with alternating layers of higher and lower density and porosity
US20130273341A1 (en) * 2010-07-16 2013-10-17 Acell Group Ltd. Composite materials and uses thereof
US20200353716A1 (en) * 2017-11-28 2020-11-12 Dow Global Technologies Llc Polyurethane-based insulation board

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1332737A (en) * 1962-06-08 1963-07-19 Improvements in soundproofing means
FR2295830A1 (en) * 1974-12-24 1976-07-23 Bayer Ag Composite thermoplastic panels with foam core and microporous skin - made by generating the core on a prefabricated foam skin
JPH0687170A (en) * 1992-09-07 1994-03-29 Hodogaya Chem Co Ltd Production of reclaimed polyurethane foam molded product

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1332737A (en) * 1962-06-08 1963-07-19 Improvements in soundproofing means
FR2295830A1 (en) * 1974-12-24 1976-07-23 Bayer Ag Composite thermoplastic panels with foam core and microporous skin - made by generating the core on a prefabricated foam skin
JPH0687170A (en) * 1992-09-07 1994-03-29 Hodogaya Chem Co Ltd Production of reclaimed polyurethane foam molded product

Non-Patent Citations (1)

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Title
DATABASE WPI Section Ch Week 9417, Derwent World Patents Index; Class A18, AN 94-140753 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2746829A1 (en) * 1996-03-28 1997-10-03 Pittsburgh Corning France Thermally and acoustically insulated building wall
EP1199156A1 (en) * 2000-10-16 2002-04-24 Alessio S.r.l. Composite components made of sintered expanded resin and method for producing such components
EP1997617A3 (en) * 2007-05-23 2009-12-02 GUMMI-WELZ GmbH u. Co. KG GUMMI-KUNSTSTOFFTECHNIK-SCHAUMSTOFFE Insulating element with sandwich structure
US20100043327A1 (en) * 2008-08-19 2010-02-25 Jordan Byron Rothwell Insulated panel
US8365497B2 (en) * 2008-08-19 2013-02-05 Jordan Byron Rothwell Insulated panel
US9260865B2 (en) * 2008-08-19 2016-02-16 Jordan Byron Rothwell Insulated panel
US20130273341A1 (en) * 2010-07-16 2013-10-17 Acell Group Ltd. Composite materials and uses thereof
US11827006B2 (en) * 2010-07-16 2023-11-28 Acell Industries Limited Composite materials and uses thereof
EP2468957A1 (en) * 2010-12-23 2012-06-27 BIG Bau und Immobilienges.m.b.H. Acoustic baffling element with alternating layers of higher and lower density and porosity
US20200353716A1 (en) * 2017-11-28 2020-11-12 Dow Global Technologies Llc Polyurethane-based insulation board
US11745465B2 (en) * 2017-11-28 2023-09-05 Dow Global Technologies Llc Polyurethane-based insulation board

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