WO2011117699A1 - Élément fait de matière composite, installation et procédé pour fabriquer cet élément - Google Patents

Élément fait de matière composite, installation et procédé pour fabriquer cet élément Download PDF

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Publication number
WO2011117699A1
WO2011117699A1 PCT/IB2011/000545 IB2011000545W WO2011117699A1 WO 2011117699 A1 WO2011117699 A1 WO 2011117699A1 IB 2011000545 W IB2011000545 W IB 2011000545W WO 2011117699 A1 WO2011117699 A1 WO 2011117699A1
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WO
WIPO (PCT)
Prior art keywords
extrusion
draw
plate
comprised
component
Prior art date
Application number
PCT/IB2011/000545
Other languages
English (en)
Inventor
Valdi Artico
Original Assignee
Friul Filiere Spa
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 Friul Filiere Spa filed Critical Friul Filiere Spa
Priority to EP11716029A priority Critical patent/EP2550143A1/fr
Priority to RU2012144573/05A priority patent/RU2012144573A/ru
Priority to BR112012024122A priority patent/BR112012024122A2/pt
Publication of WO2011117699A1 publication Critical patent/WO2011117699A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3402—Details of processes or apparatus for reducing environmental damage or for working-up compositions comprising inert blowing agents or biodegradable components

Definitions

  • the present invention concerns an element made of composite material formed by a first component with a plastic base and by a second component.
  • the present invention also concerns the plant and the method to obtain the element made of composite material and to confer upon it determinate structural characteristics.
  • the element made of composite material according to the present invention is applied widely, but not exclusively, in the building trade and/or in the field of furniture, such as components for fixtures, frames, inserts, skirting boards, shelves, furniture or others, advantageously but not exclusively for interiors.
  • plastic or plastic-based elements loaded with differing percentages of vegetal fibers, for example wood or others, in order to obtain determinate structural and mechanical characteristics.
  • the wood-plastic composite materials In order to guarantee the structural characteristics of the natural materials, the wood-plastic composite materials have a very high specific weight and increased thicknesses, thus increasing the overall production costs and the installation spaces.
  • the traditional equipment used for the extrusion of known profiles substantially comprises an extrusion screw or Archimedes screw and a draw- plate through which the cross section of the structural element is defined, through specific forced passes.
  • Other types of known plant provide to make slabs of composite material, from which the structural elements are then made by means of mechanical working.
  • the document US-A-2007/0054107 is known, which describes a method to make a molded component by disposing a core comprising a slab of expanded material, with a density comprised between 250 kg/m 3 and 800 kg/m 3 , possibly with reinforcement inserts or fibers, in a mold containing a thermosetting plastic material at low temperature and pressure (LPSMC, for example Crystic Impreg 6503 or Crystic Nupreg H 30), which is melted and polymerized.
  • LPSMC thermosetting plastic material at low temperature and pressure
  • the core is formed by polyurethane or phenolic resins, or mineral fibers bonded with resins, or metals, wood, plastic or ceramic, and has cavities in which, at the appropriate temperature and pressure conditions in the mold, the LPSMC material flows and is distributed.
  • the composite thus obtained is formed by two distinct components, of which a first is the foamed material that is encapsulated in the second component, or the LPSMC material, thus achieving a lattice structure
  • One purpose of the present invention is to achieve an element made of composite material which has good mechanical properties, in particular hardness, but which is also light and is easy and economical to make, and which guarantees an efficient dimensional stability and an overall reduction in the costs and weight of the components of which it is made.
  • Another purpose of the present invention is to perfect a plant and a method to make, simply and economically, an element made of composite material, and which guarantees an efficient dimensional stability and an overall reduction in the costs and weight of the components of which it is made.
  • the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages.
  • an element made of composite material according to the present invention comprises at least a first plastic component, preferably a thermoplastic polymer, more preferably in powdered form, and a second component selected from one or more components in a group comprising vegetal fibers, special waste, glass fibers, flour or dust from plastic laminate.
  • the first and second components are mixed together to define a composite mono-material with high structural properties.
  • the composite mono-material comprises an internal core having a form and cross section shaped in a desired manner by extrusion and drawing passage through a draw-plate, and a closed-cell porous conformation achieved by means of expansion, and an external covering part or surface having a surface hardness and specific weight higher than the value of hardness and specific weight of the internal core.
  • the present invention thus obtains a composite mono-material element which has both a specific conformation in relation to operating needs, and also high physical-technical characteristics which make it structural, hard and rigid, and also a lower weight than the elements made of composite material of a known type.
  • the closed-cell internal porosity determined by the expansion allows on the one hand to reduce the specific weight of the element made of composite material and on the other hand to keep the physical-technical characteristics of the composite material unchanged.
  • the mono-material obtainable with the present invention not only has a lower specific weight but also an external surface with high mechanical properties, in particular hardness, which avoids the need to apply a supplementary covering film or sheet which increases its mechanical characteristics.
  • the invention obtains a simple and economical element made of composite material, with an overall reduction in costs and the weight of the components, while still guaranteeing an effective dimensional stability.
  • the element made of composite material thus achieved has self- extinguishing characteristics, and thanks to the hydrophobic characteristics of the plastic component, allows a rapid and substantially total discharge of the water, if any humidity or a certain mass of water penetrates between the porosity of the material.
  • the expansion achieved to make the closed-cell porosity is of a chemical type, that is, a desired quantity of powdered chemical expanding agents, which during the extrusion step determine the formation of the closed cells in the composite material, are mixed with the first component and the second component.
  • the percentage in weight of the second component in the composition of the composite material reaches up to about 60%.
  • the surface hardness measured according to the Shore D scale has a value comprised between about 55 and about 75, while in Shore A scale it has a value comprised between about 90 and about 100.
  • the plant to produce the composite material comprises at least a mixing station, where the first and second components as above are mixed so as to define a composite mono-material, and at least a station for extrusion and drawing passage through a draw-plate where the mixed materials are extruded and drawn to obtain an element made of composite material having a desired form and cross section.
  • the mixing station comprises at least a member to dispense an expanding agent, advantageously a chemical expanding agent, inside the mixture, to determine a closed-cell expansion of the material during the extrusion step and to determine a porous internal conformation of the element made of composite material.
  • an expanding agent advantageously a chemical expanding agent
  • the station for extrusion and drawing passage through a draw- plate comprises at least an extrusion member provided with an extrusion screw, or Archimedes screw, able to define an amalgam of material, and a draw-plate directly downstream of the extrusion member.
  • the station for extrusion and drawing passage through a draw-plate comprises calibration means disposed directly at exit from the draw-plate, gripping the extruded and drawn material as it comes out, which are able to define a desired form and section of the material.
  • the disposition of the calibration means directly downstream of the draw-plate allows to manage effectively the degree of expansion of the material, which is limited by the substantially zero interspace between the exit from the draw-plate and the entrance to the calibration means.
  • the calibration means in direct grip at exit from the draw-plate, allow to achieve the mono-material with different hardness and specific weight between an internal core and an external covering part or surface.
  • the internal core is obtained with a cross section shaped in a desired manner by extrusion and drawing passage through a draw-plate and a closed-cell porous conformation made by means of the above expansion, and the external covering part or surface having a surface hardness and specific weight higher than the value of hardness and specific weight of the internal core.
  • the invention provides a plurality of extrusion members operatively disposed parallel to each other.
  • the extrusion or Archimedes screw has a conformation such as to define a plurality of operating portions, each having a determinate pitch and/or a relative core diameter.
  • the extrusion or Archimedes screw has at least an operating portion having a determinate ratio between the pitch and core diameter such as to induce a de-gassing of the composite material treated, before extrusion.
  • the method according to the present invention comprises at least a mixing step in which the first and second components as above are mixed together, and at least an extrusion and drawing step through a draw-plate, in which the mixed materials are extruded and drawn in order to obtain a element made of composite material having a desired cross section.
  • the method also comprises an expansion step, substantially simultaneous with the extrusion and drawing through a draw-plate step, in which a closed-cell expansion occurs such as to define a porous internal conformation of the element made of composite material.
  • a calibration step is provided, to define a desired form and section of the final profile, directly after it passes through the draw-plate, that is, calibrating the extruded and drawn material as soon as it has been extruded, without providing intermediate movements in which the material might expand uncontrollably.
  • - fig. 1 is a partial and three-dimensional view of an element made of composite material according to the present invention
  • - fig.2 is a schematic view of a lay-out of a plant according to the present invention to make the element made of composite material in fig. 1 ;
  • - fig. 3 shows schematically a detail of the plant in fig. 2;
  • - fig. 4 shows schematically an enlarged detail of the plant in fig. 2.
  • the reference number 10 denotes in its entirety an element made of composite material, in this case a cover profile, having a substantially arched shape.
  • the element 10 is formed by a composite mono-material with good structural properties: by mono-material we mean an element formed by the material in a single piece or body, not by the joining, association or incorporation of several distinct elements made of the same material, nor an element formed by different materials associated together.
  • the composite mono-material in question comprises an internal core having a closed-cell porous conformation made by expansion, and an external covering part or surface, formed in a single piece by the same material as the internal core, which at least partly surrounds the internal core itself and having a surface hardness and specific weight greater than the value of hardness and specific weight of the internal core.
  • the external covering part or surface not only has greater properties of hardness but also a consequent greater rigidity than the internal core.
  • the composite material of the element 10 is formed by a single mixture of a first plastic component, preferably a thermoplastic polymer or resin, more preferably in powdered form, for example a polyvinyl chloride (PVC) resin, or a polyolefin such as polypropylene (PP), and a second component chosen from among vegetal fibers, such as for example wood, flour or dust from MDF (medium density fiber), jute, rice, hemp, possibly loaded with additives, such as calcium or magnesium carbonate, or special waste, glass fibers, flour or dust from plastic laminate, such as melamine resins.
  • the first plastic component may advantageously be in powdered form.
  • the element 10 is formed by a single mixture of the two components identified above but, between the internal core and the external covering part or surface, following the specific treatment to which it is subjected, has different physical properties -in particular specific weight - and mechanical behavior - in particular hardness - as described above.
  • the minimum average thickness of the external covering part or surface that has the greater specific weight and hardness is comprised between about 0.2 and 0.5 mm.
  • the percentage in weight of the second component in the mixture that forms the element 10 is comprised between about 25% and about 60%.
  • the structural composite mono-material is plastic-fibrous vegetal with a PVC and wood fiber base, where the percentage in weight of the wood fiber can vary between about 25% and about 60%, with respect to the percentage in weight of PVC.
  • the wood fiber is comprised between about 30% and about 40% in weight, with respect to the percentage in weight of PVC.
  • both the PVC and the wood fiber are mixed together in powder form, and not in granules or scales, as happens in the state of the art.
  • the mixture of the first and second component for example but not only, of PVC and wood fiber powders, is extruded and drawn so as to confer on the element made of composite material 10 its definitive arched transverse conformation.
  • the element made of composite material 10 also has an internal closed-cell porous composition, since together with the first and second components, in this case PVC and powdered wood fiber, a plurality of powdered chemical expanding agents are also mixed, in the desired quantity and ratio, which in this case are both endothermic and exothermic.
  • a typical example of powdered chemical expanding agent that can be used in the present invention is azodicarbonamide, a crystalline powder with a molecular formula C 2 H 4 O 2 N , generally used as an additive to produce expanded or foamed plastics.
  • the thermal decomposition of azodicarbonamide generally at about 200°C for the pure component or at lower temperatures, for example about 170°C for the component modified with additives, results in the development of nitrogen, carbon dioxide and ammonia gas, which are trapped as bubbles in the material to form the expanded article.
  • the powdered chemical agents during extrusion, due to the effect of the pressure and temperature variations that lead to the plasticization of the mixture, determine an expansion of the material, rendering it porous in a closed-cell conformation.
  • the expansion of the material is controlled to obtain the desired specific weight and hardness of the internal core and the external covering part or surface of the element 10, subjecting the extruded material, directly downstream of the extrusion, to calibration so as to determine the desired form and section of the final profile, without giving space and time to the material to expand uncontrollably.
  • the closed-cell porous conformation mainly determines a reduction in the weight of the element made of composite material 10, at the same time allowing to not vary excessively the characteristics of mechanical resistance of the composite material obtained.
  • the element 10 thus made of composite material has a different specific weight between the internal core and the external covering part or surface: in particular, the internal core has a specific weight comprised between about 400 kg/m 3 and about 600 kg/m 3 , and the external covering part or surface has a specific weight comprised between about 1000 kg/m 3 and about 1400 kg/m 3 .
  • the element made of composite material 10 has a surface hardness in Shore D scale comprised between about 55 and about 75, while in Shore A scale it is comprised between about 90 and about 100.
  • the closed-cell composite material has the following technical characteristics:
  • a Vicat (1 kg in oil) softening temperature comprised between about 80°C and about 85°C, advantageously about 83°C;
  • the mixture of the mono-material according to the present invention can be integrated with one or more mineral loads, such as the calcium or magnesium carbonates cited above, non-toxic stabilizers, modifiers, lubricants, also depending on the type of plastic component used.
  • mineral loads such as the calcium or magnesium carbonates cited above, non-toxic stabilizers, modifiers, lubricants, also depending on the type of plastic component used.
  • a plant 1 1 is shown in its entirety for the production of the element made of composite material 10 according to the present invention.
  • the plant 1 1 comprises in sequence a loading station 12, a mixing station 13 and a station for extrusion and drawing passage through a draw-plate 15.
  • the loading station 12 comprises a drying device 16 and two loading devices, respectively a first 17 for the first component, for example powdered PVC, and a second 19 for the second component, for example powdered wood fiber.
  • the powdered PVC and/or wood fiber have a grain size comprised in a range varying between about 150 ⁇ and about 250 ⁇ .
  • the drying device 16 comprises a containing silo 20, into which the powdered wood fiber is poured.
  • the containing silo 20 is prepared in a substantially known manner, and is fluidically connected at exit to a drying conduit 21, through which the powdered wood fiber is induced to pass until it is poured, in a dried condition, into the second loading device 19.
  • the movement of the powdered wood fiber inside the drying conduit 21 is induced by a blower 22, suitable to cause it to exit from the containing silo 20.
  • the drying device 16 comprises a pair of burners 23, which are suitable to blow in hot drying air inside the drying conduit 21.
  • a cyclone member 25 is provided, which carries out an action of removing water from the stream of powdered wood fiber exiting from the drying conduit 21.
  • the loading station 12 also comprises two additive dispensers, respectively a first 26 for stabilizing additives and a second 27 for modifying additives.
  • the first loading device 17, the second loading device 19 and the two dispensers 26 and 27 are connected to each other at exit through a conveyor pipe 29.
  • the exits of both the first loading device 17 and the second loading device 19, and of the two dispensers 26 and 27, are selectively adjusted by means of relative valve members 30 to adjust the percentages in mixing weight of the first and second component, for example powdered PVC, powdered wood fiber and additives, according to the indications above.
  • first and second component for example powdered PVC, powdered wood fiber and additives
  • the powders and additives are thus conveyed by the conveyor pipe 29 toward the mixing station 13.
  • the mixing station 13 comprises a weighing device 31, a dispenser 32, a mixer 33 and a cooler 35.
  • the weighing device 31 is directly connected to the conveyor pipe 29 of the loading station 12, and is able to weigh all the powders and additives arriving from the loading station 12, before introducing them into the mixer 33.
  • the mixer 33 is of a substantially traditional type and allows to uniformly and homogeneously mix the first and second component, for example the powdered PVC, the powdered wood fibers and the additives.
  • the cooler 35 is disposed immediately downstream of the mixer 33 and is suitable to lower the temperature of the powders and additives after mixing.
  • the dispenser 32 is disposed operatively parallel with respect to the weighing device 31 and the mixer 33, in order to introduce into the cooler 35, and therefore into the mixture of powders and additives, a further additive of the chemical expanding type.
  • the additive introduced has a composition of exothermic parts and endothermic parts, so as to exploit to the utmost the extrusion temperatures so as to determine an optimum closed-cell expansion of the material.
  • the mixing station 13 also comprises a transport screw 36 through which the mixture of powders, added with the chemical expander, is transported to the station for extrusion and drawing passage through the draw-plate 15.
  • the station for extrusion and drawing passage through the draw- plate 15 comprises a plurality of extruders 37 disposed in this case parallel and substantially all the same.
  • Each extruder 37 comprises at least an extrusion screw or Archimedes screw 39 and a draw-plate 40.
  • the extrusion screw 39 is advantageously suitable to extrude material in powder form.
  • Both the extrusion screw 39 and the draw-plate 40 can be provided different from the other extruders 37, so as to allow a parallel production of elements made of composite material 10 of different conformations.
  • the extrusion screw 39 is conformed on its length so as to define a plurality of operating portions each having a ratio between the pitch of the coils 39a and the diameter of the core 39b such as to define a determinate operating condition on the composite material being worked.
  • the extrusion screw 39 comprises five distinct operating portions, respectively a first 41, a second 42, a third 43, a fourth 44 and a fifth 45.
  • the first operating portion 41 of the extrusion screw 39 is conformed to promote the feed of the mixture of powders and additives arriving from the transport screw 36, and provides a substantially constant pitch of the coils 39a.
  • the second operating portion 42 of the extrusion screw 39 is conformed to promote the compression of the mixture of powders and additives, and provides a substantially variable pitch of the coils 39a.
  • the third operating portion 43 of the extrusion screw 39 is conformed to promote the plasticization of the mixture of powders and additives, and provides a very close pitch of the coils 39a and an increased diameter of the core 39b.
  • the fourth operating portion 44 of the extrusion screw 39 is conformed to promote the de-gassing of the plasticized composite material, and provides a substantially wide and constant pitch of the coils 39a and a reduced diameter of the core 39b.
  • the fifth operating portion 45 of the extrusion screw 39 is conformed to promote the dosing to the draw-plate 40 of the plasticized composite material, and provides a substantially constant pitch of the coils 39a.
  • the de-gassing effected due to the conformation of the fourth operating portion 44 of the extrusion screw 39 determines a further de- humidification of the mixture, and in particular of the wood fibers, allowing to obtain the above technical characteristics of the element made of composite material 10.
  • the draw-plate 40 is associated in this case with a calibrator-carrying bench, with a length calculated according to the desired form and section of the profile to be cooled, a tracked drawing device, a circular saw cutter and a profile collection bench.
  • a calibration unit 50 is provided in direct cooperation with the draw-plate 40, to determine the desired final form and section of the product (fig. 4).
  • the calibration unit 50 is disposed directly downstream of the draw-plate 40, where the arrow F indicates the sense of advance of the material, so that between the exit 40a of the draw-plate 40 and the entrance 50a to the calibration unit 50 the space is limited, substantially zero.
  • This reciprocal disposition of the draw-plate 40 and the calibration unit 50 determines that the material just drawn is directly gripped by the calibration unit 50, and this allows to prevent an uncontrolled expansion of the material that has just been extruded and drawn; it is thus fed directly to the calibration unit 50 where, instead, the form and section are kept controlled and the desired specific weight and the desired surface hardness are obtained, as described above.
  • the element made of composite material 10 at exit from the draw-plate 40 passes through these passages so as to be cooled and to reach at the end the dimensional stability laid down by specifications.
  • Composite mono-material according to the present invention formed by a mixture consisting of the components of the following Table 1.
  • Composite mono-material according to the present invention formed by a mixture consisting of the components in the following Table 2.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Toxicology (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

L'invention porte sur un élément fait de matière composite (10), sur une installation (11) pour fabriquer ledit élément et sur un procédé correspondant, où il est prévu au moins une station de mélange (13) dans laquelle un premier composant plastique et un second composant plastique sont mélangés entre eux, et au moins une station pour l'extrusion et le passage d'étirage à travers une filière (15), station dans laquelle lesdits premier et second composants mélangés sont extrudés et étirés afin d'obtenir l'élément (10) ayant une section transversale profilée. L'installation (11) comprend au moins un organe distributeur (32) destiné à distribuer un agent gonflant chimique sous forme pulvérulente dans le mélange afin d'assurer une expansion en cellules fermées de la matière, et de donner à l'élément (10) une conformation interne poreuse. L'élément (10) qui peut être obtenu de cette façon est une mono-matière composite qui comprend un noyau intérieur ayant une forme et une section transversale conformées de la façon souhaitée et une conformation poreuse à cellules fermées réalisée par expansion, et une partie ou surface de recouvrement extérieure qui possède une dureté de surface et un poids spécifique supérieurs aux valeurs de dureté et de poids spécifique du noyau intérieur.
PCT/IB2011/000545 2010-03-22 2011-03-15 Élément fait de matière composite, installation et procédé pour fabriquer cet élément WO2011117699A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP11716029A EP2550143A1 (fr) 2010-03-22 2011-03-15 Élément fait de matière composite, installation et procédé pour fabriquer cet élément
RU2012144573/05A RU2012144573A (ru) 2010-03-22 2011-03-15 Элемент из композиционного материала, установка и способ для изготовления этого элемента
BR112012024122A BR112012024122A2 (pt) 2010-03-22 2011-03-15 elemento feito de material compósito, planta para fazer tal elemento e respectivo método de preparação

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITUD2010A000054A IT1399064B1 (it) 2010-03-22 2010-03-22 Elemento in materiale composito, impianto per la realizzazione di tale elemento in materiale composito e relativo procedimento di realizzazione
ITUD2010A000054 2010-03-22
ITUD2010A000146A IT1402684B1 (it) 2010-03-22 2010-07-21 Elemento in materiale composito, impianto per la realizzazione di tale elemento in materiale composito e relativo procedimento di realizzazione
ITUD2010A000146 2010-07-21

Publications (1)

Publication Number Publication Date
WO2011117699A1 true WO2011117699A1 (fr) 2011-09-29

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PCT/IB2011/000545 WO2011117699A1 (fr) 2010-03-22 2011-03-15 Élément fait de matière composite, installation et procédé pour fabriquer cet élément

Country Status (6)

Country Link
EP (1) EP2550143A1 (fr)
BR (1) BR112012024122A2 (fr)
CO (1) CO6620003A2 (fr)
IT (2) IT1399064B1 (fr)
RU (1) RU2012144573A (fr)
WO (1) WO2011117699A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014125462A1 (fr) 2013-02-18 2014-08-21 Friul Filiere S.P.A. Élément de construction pour fabriquer des parois et procédé de production correspondant

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001056773A1 (fr) * 2000-02-03 2001-08-09 Pactiv Corporation Plaque de mousse polymere a peau densifiee, procede et dispositif de production correspondants
US20040142160A1 (en) 2000-03-06 2004-07-22 Mikron Industries, Inc. Wood fiber polymer composite extrusion and method
US20070054107A1 (en) 2002-05-30 2007-03-08 Polymer Doors Limited Moulded components
US20080193740A1 (en) * 2007-01-31 2008-08-14 Nesbitt Jeffrey E Composite building material and method for making composite building material

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7585557B2 (en) * 2004-02-17 2009-09-08 Eastman Kodak Company Foam core imaging element with gradient density core
KR20070097445A (ko) * 2004-11-19 2007-10-04 가부시키가이샤 프라임 폴리머 프로필렌계 수지 압출 발포체 및 프로필렌계 수지 압출발포체의 제조 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001056773A1 (fr) * 2000-02-03 2001-08-09 Pactiv Corporation Plaque de mousse polymere a peau densifiee, procede et dispositif de production correspondants
US20040142160A1 (en) 2000-03-06 2004-07-22 Mikron Industries, Inc. Wood fiber polymer composite extrusion and method
US20070054107A1 (en) 2002-05-30 2007-03-08 Polymer Doors Limited Moulded components
US20080193740A1 (en) * 2007-01-31 2008-08-14 Nesbitt Jeffrey E Composite building material and method for making composite building material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014125462A1 (fr) 2013-02-18 2014-08-21 Friul Filiere S.P.A. Élément de construction pour fabriquer des parois et procédé de production correspondant

Also Published As

Publication number Publication date
EP2550143A1 (fr) 2013-01-30
IT1399064B1 (it) 2013-04-05
CO6620003A2 (es) 2013-02-15
ITUD20100146A1 (it) 2011-09-23
ITUD20100054A1 (it) 2011-09-23
IT1402684B1 (it) 2013-09-13
RU2012144573A (ru) 2014-04-27
BR112012024122A2 (pt) 2017-10-24

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