WO2007105243A1 - Procede de fabrication de panneaux ou de dalles d'isolation thermo-acoustique multicouches - Google Patents

Procede de fabrication de panneaux ou de dalles d'isolation thermo-acoustique multicouches Download PDF

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Publication number
WO2007105243A1
WO2007105243A1 PCT/IT2007/000139 IT2007000139W WO2007105243A1 WO 2007105243 A1 WO2007105243 A1 WO 2007105243A1 IT 2007000139 W IT2007000139 W IT 2007000139W WO 2007105243 A1 WO2007105243 A1 WO 2007105243A1
Authority
WO
WIPO (PCT)
Prior art keywords
panel
sealing lines
panels
mat
sealed
Prior art date
Application number
PCT/IT2007/000139
Other languages
English (en)
Inventor
Bruno Sargentini
Original Assignee
Sa.M.E.Srl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sa.M.E.Srl filed Critical Sa.M.E.Srl
Priority to EP07713474A priority Critical patent/EP2004394A1/fr
Publication of WO2007105243A1 publication Critical patent/WO2007105243A1/fr

Links

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
    • 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
    • B32B5/18—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 features of a layer of foamed material
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B7/05—Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • 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
    • B32B2266/025—Polyolefin
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • B32B2307/518—Oriented bi-axially
    • 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
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • 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

Definitions

  • the present patent application relates to a manufacturing process of individual thermal-acoustic multi layer panels or mats, and to the panel or mat obtained with said process.
  • prefabricated panels are generally inserted in building structures to ensure thermal-acoustic insulation.
  • thermoinsulating products A known type of similar thermoinsulating products is represented by multi layer mats, formed of several layers with identical structure, joined by means of heat sealing process; it being provided that each layer is composed of an insulating panel having a sandwich structure with three components, of which the two peripheral elements are smooth sheets and the central element is a sheet with alveolar structure that, being sealed with the said peripheral smooth layers, originates a plurality of hermetically sealed air bubbles.
  • the said sealed air bubbles are not tangent, and therefore are separate by a grid of narrow interconnecting channels that contain air free to flow in any direction, following sinuous routes on a plane parallel to the two peripheral smooth sheets.
  • the intermediate layer with alveolar structure is made of polyethylene
  • the two external layers are made of polythenated aluminium or BOPP (biaxally oriented polypropylene) or metallized PET (polyester), in view of the fact that these materials have higher air impermeability properties than polyethylene.
  • the panel is compressed energetically, with a modest reduction of its nominal thickness thanks to the resistance offered by the air contained in the sealed bubbles, which are basically providing pneumatic support of the load discharged on the panel.
  • the air contained inside the panel that is to say the air that fills the said grid of channels
  • the air contained in the sealed bubbles may transpire outside through the walls of the said bubbles, due to the relative imperfect impermeability of polyethylene, thus further compressing the panel, whose insulating properties are gradually impaired, since they mostly depend on the mass of air contained in the said panels.
  • the specific purpose of the present invention is to devise an insulating panel of the aforementioned type free from uncontrolled emission in lateral direction of the air contained in the panel, with special reference to the air contained in the grid of channels that surrounds the dense series of sealed bubbles.
  • the present invention is based on the idea of sealing the perimeter borders of the panel to prevent the uncontrolled emission of the air along the perimeter.
  • the air contained inside the grid of interconnecting channels remains trapped inside the panel when the panel is subjected to an energetic compressing load, which causes the compression of all the air contained in the panel, that is to say both the air contained in the sealed bubbles and the air contained in the said channels.
  • the pressurization of the said grid of channels resists to the expansion of the sealed bubbles, whose lateral walls receive an internal and external pressure of identical value.
  • a further purpose of the present invention is to devise a multi layer mat formed of two or more insulating panels with perimeter heat-sealing lines to prevent the lateral emission of the air through the borders.
  • the said sealing lines could be realized on the perimeter borders of each individual panel of the multi layer mat, that is to say before the said panels are normally overlapped and joined with traditional heat sealing process.
  • the sealing lines are perfectly aligned on the four sides of the mat. This means that, also in this case, the mat is surrounded by four rectilinear sealed lines, characterised by a much smaller thickness than the rest of the mat.
  • the thickness of the individual panels on the sealing lines is so small that is prevents the correct adhesion of the overlapped panels of the same mat.
  • the sealing lines are obtained autonomously on each panel of the mat before the panels are overlapped and joined.
  • the real peculiarity of the new process consists in the fact that the sealing lines obtained on each panel are in staggered position compared to the similar sealing lines obtained on the other panels of the mat.
  • sealing lines are obtained in the proximity of the perimeter borders and a grid (similar to a chessboard) of sealing lines is created on the entire surface of the panel, thus providing better sealing properties for each panel and for the multi layer mat.
  • the grids of sealing lines obtained on the insulating panels of the mat must be realized in staggered positions.
  • FIG. 1 , 2 and 3 are plan views of three insulating panels with sandwich structure designed to be assembled to obtain an insulating multi layer mat, respectively;
  • FIG. 4 is a diagrammatic plan view of a section of the insulating mat obtained by overlapping and joining the three insulating panels;
  • FIG. 5 is a cross-section with a transversal plane of the mat obtained with the aforementioned process; for better clarity, the three panels of the mat are shown in slightly spaced position, that is to say in the position before the heat sealing process used to obtain the perfect mutual adhesion of the panels.
  • the process of the invention is devised to obtain an insulating panel (1 ) with sandwich structure made of two external smooth sheets of polyethylene or polythenated aluminium (4a, 4b) and at least one internal polyethylene layer (4c) with alveolar structure that creates a closed series of air bubbles (5) when sealed to the two layers (4a, 4b).
  • the panel (1) is provided with sealing lines (L1) that seal the three layers (4a, 4b and 4c) to prevent the lateral emission of the air contained in the grid of channels (6) surrounding the air bubbles (5).
  • each layer is formed of a panel (1 , 2, 3) with sandwich structure made of two external smooth sheets of polyethylene or polythenated aluminium (4a, 4b) and one internal polyethylene layer (4c) with alveolar structure.
  • each panel (1 , 2, 3) used to form the mat is provided with sealing lines (L1 , l_2, L3).
  • each panel (1 , 2, 3) is provided with a grid of sealing lines, the process of the invention may be implemented by obtaining the corresponding sealing lines on the perimeter borders of each panel, while ensuring usual stagger between the sealing of the three panels.

Landscapes

  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Glass Compositions (AREA)

Abstract

L'invention concerne un procédé de fabrication de panneaux ou de dalles d'isolation thermo-acoustique comportant une structure en sandwich constituée de deux couches lisses externes (4a, 4b) et d'au moins une couche interne (4c) présentant une structure alvéolaire formant une série fermée de bulles d'air (5) une fois soudée hermétiquement sur les deux couches (4a, 4b), le procédé étant caractérisé en ce que chaque panneau ou dalle (1) comporte des lignes de soudage hermétique (L1) permettant de souder hermétiquement les couches (4a, 4b, 4c) dans le but d'empêcher l'échappement latéral de l'air présent dans une grille de passages (6) entourant les bulles d'air (5) du panneau ou de la dalle (1).
PCT/IT2007/000139 2006-03-15 2007-02-27 Procede de fabrication de panneaux ou de dalles d'isolation thermo-acoustique multicouches WO2007105243A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07713474A EP2004394A1 (fr) 2006-03-15 2007-02-27 Procede de fabrication de panneaux ou de dalles d'isolation thermo-acoustique multicouches

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000026A ITMC20060026A1 (it) 2006-03-15 2006-03-15 Procedimento per la realizzazione di pannelli o materassini multistrato isolanti termo-acustici.
ITMC2006A000026 2006-03-15

Publications (1)

Publication Number Publication Date
WO2007105243A1 true WO2007105243A1 (fr) 2007-09-20

Family

ID=38229840

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2007/000139 WO2007105243A1 (fr) 2006-03-15 2007-02-27 Procede de fabrication de panneaux ou de dalles d'isolation thermo-acoustique multicouches

Country Status (3)

Country Link
EP (1) EP2004394A1 (fr)
IT (1) ITMC20060026A1 (fr)
WO (1) WO2007105243A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4472272A (en) * 1971-07-21 1974-01-24 Imperial Chemical Industries Limited Foam moulding processes
FR2755159A1 (fr) * 1996-10-28 1998-04-30 Panhelleux Gerard Marcel Patri Panneau isolant autoportant
JP2000190412A (ja) * 1998-12-25 2000-07-11 Nippon Polyester Co Ltd 軽量積層板
US20020124508A1 (en) * 2001-03-09 2002-09-12 Dunn Daniel D. System for constructing insulated concrete structures

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4472272A (en) * 1971-07-21 1974-01-24 Imperial Chemical Industries Limited Foam moulding processes
FR2755159A1 (fr) * 1996-10-28 1998-04-30 Panhelleux Gerard Marcel Patri Panneau isolant autoportant
JP2000190412A (ja) * 1998-12-25 2000-07-11 Nippon Polyester Co Ltd 軽量積層板
US20020124508A1 (en) * 2001-03-09 2002-09-12 Dunn Daniel D. System for constructing insulated concrete structures

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 200049, Derwent World Patents Index; AN 2000-535480, XP002442664 *

Also Published As

Publication number Publication date
EP2004394A1 (fr) 2008-12-24
ITMC20060026A1 (it) 2007-09-16

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