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WO1995028265A1 - Procede et dispositif permettant de fabriquer des mats semi-finis - Google Patents

Procede et dispositif permettant de fabriquer des mats semi-finis Download PDF

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Publication number
WO1995028265A1
WO1995028265A1 PCT/EP1995/000214 EP9500214W WO9528265A1 WO 1995028265 A1 WO1995028265 A1 WO 1995028265A1 EP 9500214 W EP9500214 W EP 9500214W WO 9528265 A1 WO9528265 A1 WO 9528265A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
granulate
adhesive
station
semi
Prior art date
Application number
PCT/EP1995/000214
Other languages
German (de)
English (en)
Inventor
Uwe Frank
Axel Lachenmaier
Gusztav Lang
Hans-Joachim Ludwig
Markus Schäfer
Original Assignee
Pebra Gmbh Paul Braun
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 Pebra Gmbh Paul Braun filed Critical Pebra Gmbh Paul Braun
Publication of WO1995028265A1 publication Critical patent/WO1995028265A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/14—Making preforms characterised by structure or composition
    • B29B11/16—Making preforms characterised by structure or composition comprising fillers or reinforcement
    • 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
    • B32B5/30—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 one layer being formed of particles, e.g. chips, granules, powder
    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
    • B29C44/146—Shaping the lining before foaming
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
    • B29C70/021—Combinations of fibrous reinforcement and non-fibrous material
    • B29C70/025—Combinations of fibrous reinforcement and non-fibrous material with particular filler
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • 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
    • B32B5/16—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 formed of particles, e.g. chips, powder or granules
    • 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
    • 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
    • B32B5/24—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 one layer being a fibrous or filamentary 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
    • 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
    • B32B5/24—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 one layer being a fibrous or filamentary layer
    • B32B5/26—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 one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/26—Scrap or recycled 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
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/101—Glass
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/70—Scrap or recycled material

Definitions

  • the invention relates to a method and a plant for the production of flexible and / or deformable semi-finished mats, which are suitable for the production of plate-shaped or shell-shaped molded parts.
  • the invention is therefore based on the object of developing a method and a system for producing semi-finished mats which are suitable for the reinforcement and filling of even complex three-dimensional, intrinsically curved molded plastic parts and are easy to handle for this purpose and are deformable.
  • the combinations of features specified in patent claims 1 and 24 are proposed.
  • Advantageous refinements and developments of the invention result from the dependent claims.
  • the solution according to the invention is based on the idea of combining granular and mat-shaped additives to form a uniform structure which is sufficiently liquid-permeable and deformable.
  • a carrier layer is sprinkled with a granulate and brought into an adhesive bond with the latter to form a liquid-permeable granulate layer.
  • the granulate layer can moreover be connected to a liquid-permeable cover layer on its side facing away from the carrier layer.
  • a flexible flat material preferably made of glass fibers and / or textile and natural fibers, is advantageously used as the carrier and / or cover layer.
  • a flat or mat-like film or fabric web can be considered as the flat material, for example.
  • pre-formed or cut to length film or fabric blanks can also be used for this purpose.
  • the top layer can be sprinkled with granules and brought into an adhesive bond with it to form a granulate layer, before it is preferably connected on its granule side to the carrier layer and to its granulate layer becomes.
  • a first variant of the invention provides that the carrier layer and / or the cover layer are coated with an adhesive, preferably sprayed, before being sprinkled with granules.
  • an adhesive preferably sprayed
  • shredded plastic waste or production residues are suitable as granules, which in turn can also be glass fiber reinforced.
  • Mineral components for example in the form of expanded clay or expanded glass, can also be used for the granulate.
  • granules with a particle diameter corresponding to 0.2 to 1 times the wall thickness of the semi-finished mat should be used.
  • the carrier and cover layers consisting of blanks can be sprayed simultaneously or in succession with an adhesive layer, then sprinkled with the granules either only on the carrier layer side or also on the cover layer side, and then folded and joined together with their sprayed and / or coated sides.
  • the carrier layer in the form of a film or mat web can be continuously pulled off a supply roll, sprayed with adhesive and sprinkled with granules, while the top layer in the form of a film or mat web is pulled off a second supply roll with Sprayed adhesive and with its adhesive-coated side can be laminated onto the granulate layer on the carrier layer side.
  • the semi-finished mat consisting of the carrier layer, the granulate layer and, if appropriate, the cover layer is expediently subjected to a pressing pressure and / or an elevated temperature and / or an air stream in order to produce a sufficient adhesive bond.
  • the carrier layer can either be liquid-permeable or liquid-impermeable or can be provided with a liquid-impermeable coating in the course of the final production.
  • the cover is designed, for example, as a decorative layer, carpet material or textile fabric.
  • the semi-finished mats produced in this way can be cut to length for intermediate storage and stacked on top of one another or rolled up to form a supply roll for further use.
  • an installation which also has a conveying section for flat material blanks or webs has at least one adhesive application station, a granulate scattering station and optionally a pressing station for pressing two flat material blanks or webs against the granulate layer located between them.
  • the adhesive application station has at least one spray nozzle, which is either directed against a broad side of the flat material blanks or the flat material web or points into a granule mixing drum.
  • the pressing station advantageously contains a device for folding together two flat material pieces coated with adhesive and / or granulate.
  • every single or every second blank can be sprinkled with the granulate in the granule station.
  • the granulate-free blank is folded over in the pressing station with the aid of a folding device, so that the danger that granules can fall off when folded over is avoided.
  • the granulate station expediently has a closing mechanism which can be alternately opened and closed as the individual blanks pass through.
  • a first feed station is provided in front of the granulate application station for a flat material web that can be pulled off a supply roll see, while behind the pellet application station is arranged a second feed station for a flat material web that can be pulled off a supply roll and laminated onto the pellet layer of the first flat material web.
  • the pressing station expediently comprises a heater.
  • the pressing station An ⁇ this, two from above and below against 'the semi-finished web and Wegende, preferably heated pressure rollers to An ⁇ .
  • a further advantageous embodiment of the invention provides that the conveyor section has a conveyor belt which receives the blanks or the first flat material web.
  • a catcher for excess adhesive or excess granulate can be arranged under the conveyor belt.
  • the semifinished product mats according to the invention advantageously consist of a flexible carrier layer, a liquid-permeable cover layer and a sandwich-like granulate layer which is arranged between the carrier layer and cover layer and connects them to one another.
  • the carrier layer and / or the cover layer in turn advantageously consist of a flexible, preferably film-like or mat-like flat material, for example made of glass and / or textile fibers, while the granulate consists of shredded material Plastic waste or production residues, in particular from glass fiber reinforced polyurethane or from mineral components, for example in the form of expanded clay or expanded glass particles.
  • the semi-finished mats according to the invention can be used for the production of plate-shaped or shell-shaped molded parts, the cavities between the granulate particles being foamed with a reaction plastic.
  • the initially liquid reaction plastic is applied to the granulate layer through the liquid-permeable cover layer under pressure, while the entire semi-finished mat is deformed in the course of the foaming process under the action of pressure.
  • a certain surface contour and variation in wall thickness can also be produced on the molded part being produced.
  • the molded part produced in this way has a layer structure penetrated by a plastic matrix.
  • the carrier and cover layers which are designed, for example, as glass mats, form the outer layers of the molded part and therefore absorb the tensile and bending forces, while the fillers serve as spacers for the two outer layers.
  • the fillers make a significant contribution to volume filling and to minimize the use of new materials.
  • the proportion of recycling can be increased even further if recycling polyol is used as the reaction material, which is made from recycled polyurethane. is cash.
  • FIG. 1 shows a diagram of a production plant for semi-finished mats made from prefabricated blanks
  • FIG. 2 shows an embodiment example modified for the manufacture of semi-finished mats compared to FIG. 1;
  • Fig. 3 is a diagram of a continuously operating
  • FIG. 4 shows a diagram of an exemplary embodiment of a production plant for semi-finished mats modified from FIGS. 1 and 2;
  • Figure 5 shows a section of a semi-finished mat in a sectional enlarged view.
  • Fig. 6 shows a section through a molded part which is produced using a semi-finished mat according to FIG. 5.
  • 1 to 4 contain a conveyor line with several processing stations, which is bridged by an endlessly rotating conveyor belt 10 are .
  • glass mats 14, 15 in the form of blanks are placed in pairs on the conveyor belt 10 one after the other at a feed station and are carried by the latter in the direction of the arrow 16.
  • the glass mats first arrive at an adhesive application station 18, in which liquid adhesive 20 is sprayed onto the glass attenuator via a spray nozzle 22.
  • Under the conveyor belt 10 there is a collecting trough 24 in which excess adhesive is collected and, if necessary, conveyed back for reuse.
  • the glass mats 14, 15 arrive at a granulate scattering station 26 which has a feed hopper 30 which can be fed with granulate via a feed line 28.
  • the feed hopper 30 is provided with a downwardly open outlet opening 32 which can be closed with a closing mechanism 34.
  • Under the conveyor belt is a collecting container 36, in which excess granulate 37 is collected and conveyed back into the feed hopper 30 via the line 38.
  • the granules 37 which preferably consist of shredded plastic waste and production residues or expanded clay or expanded glass, are distributed flatly through the outlet opening 32 on the glass mats 14, 15 to form a granulate layer 40 and bonded to them with the aid of the previously sprayed-on adhesive 20.
  • the second glass mat blank 15 is folded flat against the first cut 14 with the aid of a flap 44 in the direction of arrow 46 and pressed flat with it in the direction of arrows 48 under the action of heat.
  • the flap 44 is driven by a double-acting hydraulic or pneumatic drive cylinder 50.
  • the exemplary embodiment shown in FIG. 2 differs from the exemplary embodiment according to FIG. 1 only in that only the first glass mat blank 14 is sprinkled with granules 37 in the granule spreading station, while the second blank 15 is actuated accordingly Lock mechanism us 34 remains free. This prevents granulate particles from falling off in the pressing station when the second blank 14 is folded over and being able to give rise to faults.
  • a glass mat web 14 ' is continuously drawn off from a roll 52 in the direction of arrow 16 towards the conveyor belt 10 in the feed station 12.
  • the glass mat web 14 passes through an adhesive application station 18, in which it is sprayed with adhesive 20, and a granule scattering station 26, in which it is sprinkled with granules 37 over the entire area.
  • the second glass mat web 15 ' is deflected twice on the deflection rollers 64 and its adhesive-coated side is guided against the granulate layer 40 of the first glass mat web 14'.
  • the glass mat webs 14 'and 15' are pressed by heated pressure rollers 66 against the granulate layer 40 between them and bonded to it with the aid of the adhesive 20 to form a semifinished product web 51.
  • the semifinished web 51 can be cut to mat cuts behind the pressing station 42 and placed in stacks or wound up on a roll.
  • the exemplary embodiment shown in FIG. 4 differs from the exemplary embodiment according to FIG. 1 in that the granules 37 are sprayed with adhesive 20 in a spray drum 68 and are fed from there via the feed line 28 to the granulate scattering station 26. As a result, the adhesive application station 18 can be omitted. This procedure can of course also be used in the continuous mode of operation according to FIG. 3.
  • the manufacturing plants shown in the drawing are only intended as exemplary embodiments, which can also be modified as required. In principle, it is also possible to use only one glass mat 14 or glass mat sheet 14 'which, after coating with the granulate, is folded or folded together to form the semi-finished mat or semi-finished sheet.
  • 5 shows the layer structure of the semifinished mat 51 with carrier layer 14, granulate layer 40 and cover layer 15, the three layers being held together by the perforated adhesive layers 20. Larger cavities 70 remain free between the granulate particles 37 of the granulate layer 40, which ensure that, despite the adhesive connection, an articulated, flexible connection is created between the layers 14, 15, due to which the semi-finished mat 51 is flexible and deformable.
  • the cavities 70 can be filled with a liquid reaction mixture while simultaneously deforming the semi-finished mat 51.
  • at least the cover layer 15 and the associated adhesive layer 20 must be permeable to liquids.
  • the semi-finished mat 51 is placed in the cavity of a molding tool and a reaction mixture, for example made of recycled polyol and isocyanate, is applied to it from the side of the cover layer 15 while simultaneously compressing the pressure.
  • a reaction mixture for example made of recycled polyol and isocyanate
  • the cavities 70 fill with the reaction mixture.
  • a plastic matrix 72 is formed, which counteracts further deformation of the molded part 74.
  • the molded part 74 When the molded part 74 is produced, it can additionally be provided on the outside of the carrier layer 14 with a coating 76, for example made of liquid-free permeable carpet material or made of a decorative film, which is inserted together with the semi-finished mat 51 in the cavity.
  • the coating is bonded to the semi-finished mat 51 with the reaction plastic 72 which penetrates the liquid-permeable carrier layer 14 from the inside.
  • the invention relates to a method for producing flexible and deformable semi-finished mat 51 for reinforcing plate-shaped or shell-shaped molded parts 74.
  • a flexible carrier layer 14 is sprinkled with a granulate of shredded plastic waste or expanded clay and brought into an adhesive connection with this to form a liquid-permeable granulate layer 40.
  • the granulate layer 40 is then connected to a liquid-permeable cover layer 15 on its side facing away from the carrier layer 14.
  • the cavities 70 located between the granulate particles can be foamed with a reaction plastic 72. Because of its flexibility, the semi-finished mat 51 can be deformed during the foaming process under the action of pressure.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé de fabrication de mats semi-finis (51) flexibles et déformables destinés à renforcer des pièces moulées (74) sous forme de plaques ou de coques. Ledit procédé consiste à répandre un granulé constitué de déchets broyés de matières plastiques ou d'argile expansée sur une couche de support flexible (14) et à le coller sur celle-ci pour former une couche de granulé perméable (40). Cette couche de granulé (40) est ensuite liée à une couche de couverture perméable (15) sur son côté opposé à la couche de support (14). La pièce moulée peut être fabriquée par expansion d'une matière plastique réactive (72) dans les cavités (70) situées entre les particules de granulé. En raison de leur flexibilité, les mats semi-finis (51) peuvent subir une déformation sous l'action de la pression lors de l'expansion.
PCT/EP1995/000214 1994-04-13 1995-01-21 Procede et dispositif permettant de fabriquer des mats semi-finis WO1995028265A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4412636.0 1994-04-13
DE4412636A DE4412636A1 (de) 1994-04-13 1994-04-13 Verfahren und Anlage zur Herstellung von verformbaren Halbzeugmatten

Publications (1)

Publication Number Publication Date
WO1995028265A1 true WO1995028265A1 (fr) 1995-10-26

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WO (1) WO1995028265A1 (fr)

Families Citing this family (6)

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DE29518977U1 (de) * 1995-11-30 1996-02-01 Eickenroth, Hans-Dieter, 72108 Rottenburg Kunststoff-Partikel enthaltender Drainage-Belag
DE19720067C5 (de) * 1996-05-29 2004-08-05 Marmorit Gmbh Vorbeschichtete Mineralwollelamellenplatte und Verfahren zur Herstellung derselben
CA2350760A1 (fr) * 1998-11-12 2000-05-25 Flz Faserlogistikzentrum Gmbh Granulat, et procede et dispositif pour sa production
US20050140066A1 (en) * 2003-12-29 2005-06-30 Mark Oliver Particulate core preforming process
DE102013016579B4 (de) 2013-10-08 2019-08-29 Koller Beteiligungs Holding GmbH & Co. KG Polymerverbundwerkstoff, Verfahren zu dessen Herstellung, Verfahren zum Herstellen eines Formteils und Formteil
DE102019116321A1 (de) * 2019-06-14 2020-12-17 Technische Universität Clausthal Verfahren zur Herstellung einer Sandwichstruktur

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Publication number Priority date Publication date Assignee Title
US3726624A (en) * 1970-02-27 1973-04-10 I Schwarz Foam sheet material means
FR2528356A1 (fr) * 1982-06-15 1983-12-16 Eram Chaussures Revetement conformable a haut coefficient de frottement
JPH02175978A (ja) * 1988-12-23 1990-07-09 Takiron Co Ltd スエード調シート類およびその連続製造方法
EP0498310A1 (fr) * 1991-02-05 1992-08-12 Klaus Kurt Kölzer Matériau de remplissage pour des résines thermodurcissable et son procédé de réalisation
NL9200658A (nl) * 1992-04-08 1993-11-01 Janssen Fritsen Beheer B V Werkwijze voor het vervaardigen van een plaat opgebouwd uit een kern van polyurethan die aan de buitenzijde(n) is afgedekt met een deklaag en aldus verkregen platen.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726624A (en) * 1970-02-27 1973-04-10 I Schwarz Foam sheet material means
FR2528356A1 (fr) * 1982-06-15 1983-12-16 Eram Chaussures Revetement conformable a haut coefficient de frottement
JPH02175978A (ja) * 1988-12-23 1990-07-09 Takiron Co Ltd スエード調シート類およびその連続製造方法
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