DE3012926A1 - METHOD FOR PRODUCING PANELS FROM SOFT CELL-PLASTIC PLASTICS - Google Patents

METHOD FOR PRODUCING PANELS FROM SOFT CELL-PLASTIC PLASTICS

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Publication number
DE3012926A1
DE3012926A1 DE19803012926 DE3012926A DE3012926A1 DE 3012926 A1 DE3012926 A1 DE 3012926A1 DE 19803012926 DE19803012926 DE 19803012926 DE 3012926 A DE3012926 A DE 3012926A DE 3012926 A1 DE3012926 A1 DE 3012926A1
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DE
Germany
Prior art keywords
film
solution
cellular plastics
soft
soft cellular
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
DE19803012926
Other languages
German (de)
Inventor
Nobuhiro Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wako Chemical Co Ltd
Original Assignee
Wako Chemical Co Ltd
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 Wako Chemical Co Ltd filed Critical Wako Chemical Co Ltd
Publication of DE3012926A1 publication Critical patent/DE3012926A1/en
Ceased 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
    • 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
    • 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
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5618—Impregnating foam articles
    • 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
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • 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
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/467—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements during mould closing
    • 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
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/08—Impregnating
    • 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
    • B32B5/02—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 structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • 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
    • B32B5/245—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 being a foam 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
    • B32B5/28—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 impregnated with or embedded in a plastic substance
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/36—After-treatment
    • C08J9/40—Impregnation
    • C08J9/42—Impregnation with macromolecular compounds
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • 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
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins
    • 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
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B29K2105/045—Condition, form or state of moulded material or of the material to be shaped cellular or porous with open cells
    • 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
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • B29K2105/128—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles in the form of a mat
    • 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
    • B29K2105/25—Solid
    • B29K2105/253—Preform
    • B29K2105/256—Sheets, plates, blanks or films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/10—Building elements, e.g. bricks, blocks, tiles, panels, posts, beams
    • 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
    • B32B2266/06—Open cell foam
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Moulding By Coating Moulds (AREA)

Description

Verfahren zur Herstellung von Platten aus weichen zell-Process for the production of panels from soft cellular

förmigen Kunststoffen Die Erfindung beziehMsich auf ein Verfahren zur Herstellung von Platten aus weichen zellförmigen Kunststoffen des offenzelligen Typs. shaped plastics The invention relates to a method for the production of panels from soft cellular plastics of the open-cell Type.

Es ist bereits eine Anzahl von Verfahren zur Herstellung von wärmeisolierenden oder akustischen Platten, z. B. Fahrzeugdeckenplatten bekannt. Ein solches Verfahren sieht die Imprägnierung von Hanffilz mit Phenolharz und dessen Formung zu einer Platte unter Hitze vor. Das erhaltene Produkt ist, obwohl ausreichend steif, verhältnismäßig schwer und kostspielig. Ein anderes Verfahren sieht die Wärmeformung von Glaswolle und Phenolharz zu einer Platte vor, erwies sich jedoch als umständlich, da es die Hantierung der Glaswolle umfaßt, obwohl das Produkt verhältnismäßig leicht ist. Weiter verursacht das Phenolharz eine Umwltverschmutzung. Nach einem weiteren Verfahren werden Polyäthylenschaum und -leisten miteinander zur Bildung einer Platte verbunden, die jedoch schwer und aufwendig herzustellen ist. There are already a number of methods of making heat insulating or acoustic panels, e.g. B. vehicle ceiling panels known. Such a procedure sees the impregnation of hemp felt with phenolic resin and its shaping into one Plate under heat. The product obtained, although sufficiently stiff, is proportionate heavy and expensive. Another method sees the thermoforming of glass wool and phenolic resin to a plate before, however, proved to be cumbersome as it the Includes handling of the glass wool, although the product is relatively light. Furthermore, the phenolic resin causes environmental pollution. After another process polyethylene foam and strips are connected to each other to form a Plate connected, which is difficult and expensive to manufacture.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung von Platten aus weichen zellförmigen Kunststoffen zu entwickeln, die steif und leicht, gasdurchlässig und möglichst unaufwendig sind, wobei das Verfahren gegenüber den bekannten vereinfacht sein soll. The invention is based on the object of a method for production to develop sheets of soft cellular plastics that are stiff and light, are gas-permeable and as inexpensive as possible, the method compared to the known should be simplified.

Gegenstand der Erfindung, womit diese Aufgabe gelöst wird, ist ein Verfahren zur Herstellung von Platten aus weichen zellförmigen Kunststoffen, das durch-die folgenden Verfahrensschritte gekennzeichnet ist: a) Eintauchen einer Folie aus offenzelligen, weichen zellförmigen Kunststoffen in eine Lösung eines warmhärtbaren Harzes, b) Quetschen der Folie zur Entfernung einer wesentlichen Menge der Lösung aus der Folie bei gleichmäßiger Verteilung des Rests der Lösung in der ganzen Folie, c) Trocknen der Folie zum Verdampfen des Lösungsmittels in der Lösung, d) Anordnen einer Verstärkungsfolie auf der Folie aus weichen zellförmigen Kunststoffen, e) Warmpressen der Kunststoffolie und der Verstärkungsfolie zu einer Platte und f) Verbinden der Verstärkungsfolie mit der Folie aus weichen zellförmigen Kunststoffen. The invention, with which this object is achieved, is a Process for the production of panels from soft cellular plastics, the characterized by the following process steps: a) immersing a film from open-cell, soft cellular plastics in a solution of a thermosetting Resin, b) squeezing the film to remove a substantial amount of the solution from the foil with even distribution of the rest of the solution throughout the foil, c) drying the film to evaporate the solvent in the solution, d) arranging a reinforcement film on the film made of soft cellular plastics, e) Hot pressing of the plastic film and the reinforcement film to form a plate and f) Joining the reinforcement film with the film made of soft cellular plastics.

Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet. Refinements of the invention are characterized in the subclaims.

Die Erfindung wird anhand der in der Zeichnung veranschaulichten Ausführungsbeispiele näher erläutert; darin zeigen: Fig. 1 eine schematische Ansicht zur Veranschaulichung der kontinuierlich aufeinanderfolgenden Schritte eines Verfahrens gemäß der Erfindung; Fig. 2 eine schematische Ansicht einer oberen und einer unteren Form zur Veranschaulichung eines Warmformschrittes nach einem Verfahren gemäß der Erfindung; und Fig. 3 eine Perspektivansicht einer nach dem erfindungsgemäßen Verfahren hergestellten Platte. The invention is illustrated with reference to the in the drawing Embodiments explained in more detail; 1 shows a schematic view to illustrate the continuously successive steps of a process according to the invention; Fig. 2 is a schematic view of an upper and a lower one Mold to illustrate a hot-forming step according to a method according to FIG Invention; and FIG. 3 is a perspective view of one according to the method according to the invention manufactured plate.

Gemäß Fig. 1 wird eine längliche Folie oder ein Band 10 aus weichen zellförmigen Kunststoffen des offenzelligen Typs, wie z. B. aus weichem Polyurethanschaum, weichem Vinylschaum oder weichem Harnstoffschaum, in Längsrichtung gefördert und durch Rollen 16, 18 kontinuierlich in eine Lösung 12 in einem Behälter 14 eingetaucht. Die Lösung 12 wird hergestellt, indem man 100 Gewichtsteile eines warmhärtbaren Harzes, wie z. B. eines Isocyanatharzes, Epoximaterials, ungesättigten Polyesterharzes, mit 20 bis 50 Gewichtsteilen eines Lösungsmittels, wie z. B. Methylenchlorids, Dichlorpropans, Toluols oder 1,1,1-TrichlorSthans, verdünnt, wobei das Methylenchlorid wegen seines niedrigen Siedepunkts von 41,6 OC und damit wegen seiner hohen Flüchtigkeit bevorzugt wird. Wenn die Folie 10 aus weichen zellförmigen Kunststoffen durch die Lösung 12 durchläuft, wird die Folie 10 mit der Lösung 12 imprägniert, die sowohl in den Zellen als auch den Wänden in der Folie 10 zurückgehalten wird. According to Fig. 1, an elongated film or tape 10 is made of soft cellular plastics of the open cell type, such as e.g. B. made of soft polyurethane foam, soft vinyl foam or soft urea foam, conveyed lengthways and continuously immersed in a solution 12 in a container 14 by rollers 16, 18. Solution 12 is prepared by adding 100 parts by weight of a thermosetting Resin, such as B. an isocyanate resin, epoxy material, unsaturated polyester resin, with 20 to 50 parts by weight of a solvent, such as. B. methylene chloride, dichloropropane, Toluene or 1,1,1-TrichlorSthans, diluted, whereby the methylene chloride because of its low boiling point of 41.6 OC and therefore preferred because of its high volatility will. When the film 10 made of soft cellular plastics through the solution 12 passes through, the film 10 is impregnated with the solution 12, which is both in the cells as well as the walls in the film 10 is retained.

Man läßt dann die Folie 10 zwischen einem Paar von Klemmrollen 20, 22 durchlaufen, um eine wesentliche Menge der Lösung 12 auszuquetschen und den Rest der Lösung 12 gleichmäßig durch die ganze Folie 10 zu verteilen. Die in der Folie 10 zu belassende Menge der Lösung 12 variiert mit der gewUnschten Eigenschaft eines Endprodukts, liegt jedoch vorzugsweise im Bereich von 20 bis 100 g je 1 1 der weichen zellförmigen Kunststoffe. Da eine wesentliche Menge der Lösung 12 so aus der Folie 10 entfernt ist, wird ein Plattenendprodukt leicht und gasdurchlässig. The film 10 is then left between a pair of pinch rollers 20, 22 to squeeze out a substantial amount of solution 12 and the rest to distribute the solution 12 evenly through the entire film 10. The one in the slide The amount of solution 12 to be left will vary with the desired property of one End product, but is preferably in the range of 20 to 100 g per 1 liter of the soft cellular plastics. Because a substantial amount of the solution 12 is so out of the slide 10 is removed, a final panel product becomes light and gas permeable.

Man läßt da, n die Folie 10 sich durch eine Trocknungskammer 24 bewegen, in der das Lösungsmittel in der Lösung 12 verdampft wird. Das Lösungsmittel kann bei einer verhältnismäßig niedrigen Temperatur verdampft werden, wenn das Lösungsmittel Methylenchlorid ist. Falls das Lösungsmittel irgendeiner der anderen.Stoffe mit einem höheren Siedepunkt ist, müßte die Trocknungskammer 24 auf eine höhere Temperatur erhitzt werden, damiNdas Lösungsmittel verdampft wird. Der Lösungsmitteldampf kann aus der Trocknungskammer 24 mittels eines Ventilators 26 durch ein Auslaßrohr 28 abgeführt werden. Die aus der Trocknungskammer 24 herauskommende längliche Folie 10 wird über Rollen 30 auf einen Schneidtisch 32 gefördert, auf dem die Folie 10 mittels eines Schneidmessers 34, das sich nach unten in der Richtung des Pfeils P zum Schneidtisch 32 hin bewegt, in eine bestimmte Länge 36 (Fig. 2) geschnitten wird. The film 10 is allowed to move through a drying chamber 24, in which the solvent in solution 12 is evaporated. The solvent can be evaporated at a relatively low temperature when the solvent Is methylene chloride. If the solvent contains any of the other substances a higher boiling point, the drying chamber 24 would have to be at a higher temperature heated so that the solvent is evaporated. The solvent vapor can from the drying chamber 24 by means of a fan 26 through an outlet pipe 28 be discharged. The elongated film coming out of the drying chamber 24 10 is conveyed via rollers 30 to a cutting table 32 on which the film 10 by means of a cutting knife 34 moving downward in the direction of the arrow P moved towards the cutting table 32, cut into a certain length 36 (FIG. 2) will.

Fig. 2 zeigt eine obere Form 40, die durch eine elektrische Heizvorrichtung 41 heizbar ist, und eine untere Form 42, die hohl ist und durch in sie durch ein Ventil 43 eingeführten Dampf erhitzt werden kann. Die geschnittene Länge 36 aus den behandelten weichen zellförmigen Kunststoffen wird zwischen der oberen Form 40 und der unteren Form 42 angeordnet und von einem Paar von Verstärkungsfolien 38, 38, wie z. B. Fig. 2 shows an upper mold 40 which is operated by an electric heater 41 is heatable, and a lower mold 42 that is hollow and through into it through a Valve 43 introduced steam can be heated. The cut length 36 from the treated soft cellular plastics is between the top mold 40 and the lower mold 42 are arranged and a pair of reinforcement sheets 38, 38, e.g. B.

aus ungewebtem Stoff, Victoriagras, perforiertem Hochpolymerfilm oder Papier, mit der erforderlichen Festigkeit und Gasdurchlässigkeit eingefaßt. Dann wird die obere Form 40 zur unteren Form 42 abgesenkt, um die Länge 36 aus den weichen zellförmigen Kunststoffen und die Verstärkungsfolien 38, 38 mit Wärmeeinwirkung zu einer Platte 44 (Fig.3) mit einer gewünschten Form zu pressen, die nach der Aushärtung aus den Formen 40, 42 herausgenommen wird. Während des Preßvorganges schlägt ein Teil des in den Zellen in der Länge 36 aus den weichen zellförmigen Kunststoffen, die auf 5-30 % ihrer Dicke zusammengepreßt sind, verbliebenen warmhärtbaren Harzes zur Oberfläche der Länge 36 der weichen zellförmigen Kunststoffe durch bzw. sickert zu dieser aus. Dieses ausgesickerte Harz dient als Kleber zwischen der Länge 36 aus den weichen zellförmigen Kunststoffen und den Verstärkungsfolien 38, 38. Dementsprechend werden die Formung und die Verbindung der Platte 44 durch das Zusammenwirken der oberen Form 40 und der unteren Form 42 gleichzeitig durchgeführt. Eine Decklage 46 kann auf einer der Verstärkungsfolien 38, 38, die der oberen Form 40 zugewandt ist, angeordnet werden, wobei die Decklage 46 vorzugsweise ein geeignetes dekoratives Muster aufweist, um der Platte 44 ein gefälliges Aussehen zu geben. Dies wird besonders bevorzugt, wenn die Platte 44 als Deckenbauteil für ein Kraftfahrzeug, Haus usw. verwendet wird.made of non-woven fabric, victoria grass, perforated high polymer film or Paper, edged with the required strength and gas permeability. then the upper mold 40 is lowered to the lower mold 42, the length 36 from the soft cellular plastics and the reinforcing films 38, 38 with the action of heat to press a plate 44 (Fig.3) with a desired shape, which after curing is removed from the molds 40,42. Strikes during the pressing process Part of the cells in length 36 from the soft cellular plastics, which are compressed to 5-30% of their thickness, remaining thermosetting resin to the surface of the length 36 of the soft cellular plastics through or seeps through to this one out. This oozed resin acts as an adhesive between length 36 from the soft cellular plastics and the reinforcing foils 38, 38. Accordingly the formation and the connection of the plate 44 through the cooperation of the upper mold 40 and lower mold 42 performed simultaneously. A top layer 46 can be placed on one of the reinforcement foils 38, 38 facing the upper mold 40 is, are arranged, the topsheet 46 preferably being a suitable decorative Has pattern to give the plate 44 a pleasing appearance. This is going to be special preferred if the plate 44 is used as a ceiling component for a motor vehicle, house, etc. is used.

Obwohl im veranschaulichten Ausführungsbeispiel die längliche Folie 10 für eine kontinuierliche Verarbeitung gezeigt wurde, kann man auch eine Mehrzahl von einzelnen Längen aus weichen zellförmigen Kunststoffen, die vorher zugeschnitten wurden, zur Imprägnierung mit der Lösung 12, zum Ausquetschen und zur Trocknung verwenden. Es kann auch eine Preßeinrichtung anstelle der Klemmrollen 20, 22 zum Ausquetschen der Folie 10 verwendet werden, oder man kann auch auf ein Ausquetschen von Hand besonders dann zurückgreifen, wenn eine geringe Anzahl von Platten 44 herzustellen ist. Obwohl die Länge 36 der verarbeiteten weichen zellförmigen Kunststoffe, die verhältnismäßig steif ist, als solche als Deckenbauteil brauchbar ist, sollte man wenigstens eine Verstärkungsfolie allgemein auf eine Seite der Folie 36 aufbringen, um sie steifer zu machen. Although in the illustrated embodiment, the elongated film 10 for continuous processing, one can also use a plurality from individual lengths soft cellular plastics that were previously cut, for impregnation with the solution 12, for squeezing and use for drying. A pressing device can also be used instead of the pinch rollers 20, 22 can be used to squeeze out the film 10, or you can also click on a Use hand squeezing especially when a small number of Plates 44 is to be produced. Although the length 36 of the processed soft cellular Plastics that are relatively stiff can be used as such as ceiling components there should be at least one reinforcement sheet generally on one side of the sheet 36 to make them stiffer.

Die erfindungsgemäß hergestellte Platte 44 hat eine hohe Biegefestigkeit und eine gute Gasdurchlässigkeit und ist leicht. The plate 44 produced according to the invention has a high flexural strength and good gas permeability and is light.

Es wurde ein Vergleichsversuch mit einem Erzeugnis gemäß der Erfindung und einem "FRP"-Erzeugnis durchgeführt, das aus mit Phenolharz imprägnierter Glaswolle hergestellt wurde, und die Ergebnisse sind in der folgenden Tabelle aufgeführt: Produkt gemäß der Herkömmliches Bemerkungen Erfindung "FRP"-Produkt Spezifisches 0,075 0,19 Gewicht Maximale Biege- 2,5 kg 3,5 kg 3-Punkt- last biegetest biegetest RelativeFestig- 4,2 2,3 keit Bei dem. Test der maximalen Biegelast ließ man die Last zentral auf einen Probekörper mit einer Dicke von 8 mm, einer Breite von 50 mm und einer Länge von 100 mm im Fall des erfindungsgemäßen Erzeugnisses einwirken, und in gleicher Weise wirkte die Last zentral auf einen Probe körper mit einer Dicke von 5 mm, einer Breite von 50 mm und einer Länge von 100 mm im Fall des "FRP"-Produkts ein.A comparative test was carried out with a product according to the invention and an "FRP" product made from glass wool impregnated with phenolic resin, and the results are given in the following table: Product according to the conventional remarks Invention "FRP" product Specific 0.075 0.19 weight Maximum bending 2.5 kg 3.5 kg 3-point load bending test bending test RelativeFestig- 4.2 2.3 speed In which. In the test of the maximum bending load, the load was applied centrally to a test specimen with a thickness of 8 mm, a width of 50 mm and a length of 100 mm in the case of the product according to the invention, and in the same way the load acted centrally on a test specimen a thickness of 5 mm, a width of 50 mm and a length of 100 mm in the case of the "FRP" product.

Die relative Festigkeit kann durch Dividieren der maximalen Biegelast (kg) durch eine Flächeneinheit (m2) erhalten werden.The relative strength can be calculated by dividing the maximum bending load (kg) can be obtained by a unit area (m2).

Je höher die relative Festigkeit ist, umso leichter und fester ist das Produkt. Der Wert des spezifischen Gewichts zeigt, daß das Erzeugnis gemäß der Erfindung beträchtlich leichter als das "FRP"-Erzeugnis ist.The higher the relative strength, the lighter and stronger it is the product. The specific gravity value shows that the product according to the Invention is considerably lighter than the "FRP" product.

Wenn die weichen zellförmigen Kunststoffe an den gegenüberliegenden Seiten mit den Verstärkungsfolien für eine erhöhte Festigkeit verstärkt sind, ist das Erzeugnis gemäß der Erfindung gegenüber einer Verformung aufgrund hoher Feuchtigkeit und Temperatur hoch widerstandsfähig und ist daher zur Verwendung als Deckenbauteil in einem Kraftfahrzeugfahrgastraum, in einer Steuerkabine auf einem kleinen Schiff, in einem Kochraum, in einem Badezimmer, in einer Halle usw. When the soft cellular plastics on the opposite Sides are reinforced with the reinforcement foils for increased strength the product according to the invention against deformation due to high humidity and temperature highly resistant and is therefore for use as a ceiling component in a motor vehicle passenger compartment, in a control cabin on a small ship, in a cooking room, bathroom, hall, etc.

geeignet. Das Erzeugnis gemäß der Erfindung braucht, wenn es als Deckenbauteil verwendet wird, nicht besonders aufgehängt, sondern einfach an seinen Kanten an die Gehäusekonstruktion nur angelegt zu werden, ohne daß die Notwendigkeit eines zusätzlichen Aufhängungsrahmenwerks besteht. Außerdem ist das erfindungsgemäße Erzeugnis schwingungsbeständig und dient als Geräusch-und Wärmeisolation.suitable. The product according to the invention needs when it is used as a ceiling component used, is not specially hung, but simply attached to its edges the housing construction can only be applied without the need for a additional suspension framework. In addition, the product according to the invention is vibration-resistant and serves as noise and heat insulation.

L e e r s e i t eL e r s e i t e

Claims (8)

Ansprüche 1. Verfahren zur Herstellung von Platten aus weichen zellförmigen Kunststoffen, gekennzeichnet durch die Verfahrensschritte a) Eintauchen einer Folie (10) aus offenzelligen, weichen zellförmigen Kunststoffen in eine Lösung (12) eines warmhärtbaren Harzes, b) Quetschen der Folie (10) zur Entfernung einer wesentlichen Menge der Lösung (12) aus der Folie (10) bei gleichmäßiger Verteilung des Rests der Lösung (12) in der ganzen Folie (10), c) Trocknen der Folie (10) zum Verdampfen des Lösungsmittels in der Lösung (12), d) Anordnen einer Verstärkungsfolie (38) auf der Folie (36) aus weichen zellförmigen Kunststoffen, e) Warmpressen der Kunststoffolie (36) und der Verstärkungsfolie (38) zu einer Platte (44) und f) Verbinden der Verstärkungsfolie (38) mit der Folie (36) aus weichen zellförmigen Kunststoffen. Claims 1. A method for the production of panels from soft cellular Plastics, characterized by the process steps a) immersing a film (10) of open-cell, soft cellular plastics in a solution (12) of a thermosetting resin, b) squeezing the film (10) to remove a substantial portion Amount of the solution (12) from the film (10) with even distribution of the remainder the solution (12) in the entire film (10), c) drying the film (10) to evaporate of the solvent in the solution (12), d) arranging a reinforcing film (38) on the film (36) made of soft cellular plastics, e) hot pressing of the plastic film (36) and the reinforcing foil (38) to form a plate (44) and f) connecting the reinforcing foil (38) with the film (36) made of soft cellular plastics. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man als offenzellige, weiche zellförmige Kunststoffe weichen Polyurethanschaum und als Lösung (12) mit Methylenchlorid verdünntes Isocyanatharz verwendet.2. The method according to claim 1, characterized in that as open-cell, soft cellular plastics, soft polyurethane foam and as a solution (12) Isocyanate resin diluted with methylene chloride is used. 3. Verfahren nach Anspruch 1,dadurch gekennzeichnet, man eine Verstärkungsfolie (38) aus ungewebtem Stoff verwendet.3. The method according to claim 1, characterized in that a reinforcing film (38) made of non-woven fabric. 4. Verfahren nach Anspruch 1,dadurch gekennzeichnet, daß man die Lösung (12) mit 100 Gewichtsteilen des warmhärtbaren Harzes und 20 bis 50 Gewichtsteilen des Lösungsmittels verwendet.4. The method according to claim 1, characterized in that the solution (12) with 100 parts by weight of the thermosetting resin and 20 to 50 parts by weight of the solvent used. 5. Verfahren nach Anspruch 1,dadurch gekennzeichnet, daß man den Rest im Bereich von 20 bis 100 g Lösung (12) je 1 1 der weichen zellförmigen Kunststoffe einstellt.5. The method according to claim 1, characterized in that the remainder in the range from 20 to 100 g of solution (12) per 1 liter of the soft cellular plastics adjusts. 6. Verfahren nach Anspruch 1,dadurch gekennzeichnet, daß man die Schritte des Warmpressens und Verbindens gleichzeitig durchführt.6. The method according to claim 1, characterized in that the steps of hot pressing and joining is carried out at the same time. 7. Verfahren nach Anspruch 1, gekennzeichnet durch den zusätzlichen Verfahrensschritt des Anordnens einer dekorativen Folie (46) auf der Vertärkungsfolie (38) vor dem Verfahrensschritt des Warmpressens.7. The method according to claim 1, characterized by the additional Process step of arranging a decorative film (46) on the reinforcement film (38) before the hot pressing step. 8. Verfahren nach Anspruch 1, gekennzeichnet durch den zusätzlichen Verfahrens schritt des Schneidens der Kunststoffolie (10) in einzelne Längen (36) nach dem Verfahrensschritt des Trocknens.8. The method according to claim 1, characterized by the additional Process step of cutting the plastic film (10) into individual lengths (36) after the drying step.
DE19803012926 1979-04-05 1980-04-02 METHOD FOR PRODUCING PANELS FROM SOFT CELL-PLASTIC PLASTICS Ceased DE3012926A1 (en)

Applications Claiming Priority (1)

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JP54041200A JPS5852495B2 (en) 1979-04-05 1979-04-05 Method for manufacturing small molded ceiling panels for automobiles, ships, houses, etc.

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DE3012926A1 true DE3012926A1 (en) 1980-10-23

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WO2013020707A3 (en) * 2011-08-09 2013-07-25 Rehau Ag + Co Battery housing part for receiving a traction battery of an electric vehicle and method for producing the battery housing part

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FR2503721B1 (en) * 1981-04-14 1985-11-15 Nobel Bozel METHOD FOR MANUFACTURING LIGHTWEIGHT, INSULATING, FLEXIBLE, RIGID OR SEMI-RIGID ELEMENTS OF THE VARIABLE FORM AND THICKNESS TYPE OR PIECES AND ELEMENTS RESULTING FROM THE SAME
JPS57205125A (en) * 1981-06-12 1982-12-16 Nippon Tokushu Toryo Kk Manufacture of light weight sound insulating molded material
JPS597840U (en) * 1982-07-07 1984-01-19 井上エムテ−ピ−株式会社 Sound insulation damping material
JPS63139144U (en) * 1987-03-05 1988-09-13
GB2207855B (en) * 1987-08-08 1991-09-18 Austin Rover Group A method of cleaning a press tool and a cleaning means for use in such a method
BE1003036A6 (en) * 1989-03-23 1991-10-29 Recticel METHOD FOR MANUFACTURING A PLASTIC FOAM CONTAINING ELEMENT AND ELEMENT OBTAINED BY THIS METHOD
AU2019317217B2 (en) * 2018-08-08 2021-11-11 Fast Build Systems Pty Ltd Preform, composite structure and panel, and methods of forming same

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US3269887A (en) * 1963-08-07 1966-08-30 Dow Chemical Co Settable, flexible, foamed resins
FR2096506A1 (en) * 1970-06-26 1972-02-18 Shell Int Research Thermosetting resin articles - by compressing and curing
GB1540076A (en) * 1976-05-03 1979-02-07 Ici Ltd Shaped articles

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Publication number Priority date Publication date Assignee Title
WO2013020707A3 (en) * 2011-08-09 2013-07-25 Rehau Ag + Co Battery housing part for receiving a traction battery of an electric vehicle and method for producing the battery housing part

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FR2453021B1 (en) 1984-04-13
GB2045684A (en) 1980-11-05
GB2045684B (en) 1983-03-16
JPS55133931A (en) 1980-10-18
FR2453021A1 (en) 1980-10-31
JPS5852495B2 (en) 1983-11-22

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