SE445985B - FORMATED, ARMED CELL POLYURETAN DISC AND SET TO MANUFACTURE IT - Google Patents

FORMATED, ARMED CELL POLYURETAN DISC AND SET TO MANUFACTURE IT

Info

Publication number
SE445985B
SE445985B SE7905895A SE7905895A SE445985B SE 445985 B SE445985 B SE 445985B SE 7905895 A SE7905895 A SE 7905895A SE 7905895 A SE7905895 A SE 7905895A SE 445985 B SE445985 B SE 445985B
Authority
SE
Sweden
Prior art keywords
foils
disc
sheet
stiffening
polyurethane
Prior art date
Application number
SE7905895A
Other languages
Swedish (sv)
Other versions
SE7905895L (en
Inventor
P Seiler
G Ludwiller
Original Assignee
Roth Sa Freres
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 Roth Sa Freres filed Critical Roth Sa Freres
Publication of SE7905895L publication Critical patent/SE7905895L/en
Publication of SE445985B publication Critical patent/SE445985B/en

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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
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/569—Shaping and joining components with different densities or hardness
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
    • B29C51/082—Deep drawing or matched-mould forming, i.e. using mechanical means only by shaping between complementary mould parts
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B29/007—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to 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
    • B32B5/02—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
    • B32B5/024—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
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/022—Foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/18—Fabrics, textiles
    • B32B2305/188—Woven fabrics
    • 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
    • B32B2305/38—Meshes, lattices or nets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08—Dimensions, e.g. volume
    • B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/08—Glass
    • B32B2315/085—Glass fiber cloth or 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
    • B32B2317/00—Animal or vegetable based
    • B32B2317/12—Paper, e.g. cardboard
    • 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
    • B32B2375/00—Polyureas; Polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Body Structure For Vehicles (AREA)

Description

7905895-4 va av 2 m2 yta med en tjocklek av-8 mm och tillräcklig stelhet för att vara självbärande, t.ex.-som ett innertak för en automobil, utgår man från en cellplastskiva av 40 mm tjocklek och en täthet av 80.g/l- Efter_formning och kompression till en tjocklek av 8 mm har 2 m2-skivan en vikt av 6,4 kg, vilket icke går ihop med ett lågt_fabrikspris, I Föreliggande uppfinning har som syfte att avhjälpa dessa olägenhe- ter. '- ' Den har isynnerhet som syfte att åstadkomma ett sätt att genom de- formation under trvck vid förhöjd temperatur tillverka formade cell- polyuretanskivor, vilket sätt har de i patentkravet 1 angivna sär- dragen."f ' ~ Enligt ett kännetecken för uppfinningen tjänar bindemedlet efter återaktiveringen medelst värme såsom smörjmedel för de uppstyvande folierna utmed cellplastskivan. 7905895-4 va of 2 m2 surface with a thickness of -8 mm and sufficient rigidity to be self-supporting, eg-as a ceiling for an automobile, one starts from a foam board of 40 mm thickness and a density of 80. After molding and compression to a thickness of 8 mm, the 2 m2 board has a weight of 6.4 kg, which does not go hand in hand with a low factory price. The present invention has for its object to remedy these disadvantages. In particular, it has for its object to provide a method of producing shaped polyurethane sheets by deformation under pressure at elevated temperature, which method has the features set out in claim 1. According to a feature of the invention, the binder after reactivation by heat as a lubricant for the stiffening foils along the foam sheet.

Enligt ännu ett kännetecken uppvisar bindemedlet polymerisering ef- ter smältningen genom värmning och 48 timmar efter formningen så att processen blir irreversibel även då den formade skivan hålls vid en temperatur av l50°C. "Énligt ytterligare ett kännetecken har pokyuretanelastometen som bildar bindemedlet lämpligen följande sammansättning: - komponent 1: 100 viktdelar monopolyuretan, t.ex. av varumärket 7 Desmocoll från Bayer AG eller med varumärket Witco- bond 5240 från Witco _ - komponent 2: 5-10 viktdelar isocyanathärdare, t.ex. med varumär- ket iwitpo 'xß från witco.According to another feature, the binder exhibits polymerization after melting by heating and 48 hours after molding so that the process becomes irreversible even when the molded sheet is kept at a temperature of 150 ° C. "According to a further feature, the pokyurethane elastomer which forms the binder suitably has the following composition: - component 1: 100 parts by weight of monopolyurethane, eg of the trademark 7 Desmocoll from Bayer AG or with the trademark Witcoboond 5240 from Witco parts by weight of isocyanate hardener, eg with the trademark iwitpo 'xß from witco.

Uppfinningen avser ocksålen enligt ovan beskrivna förfarande till- verkad skiva med de i patentkravet 5 angivna särdragen.The invention also relates to a disc made according to the method described above with the features stated in claim 5.

Uppfinningen beskrivs i det följande med hjälp av en lämplig utfö- ringsform och hänvisning till bifogade ritningar, i vilka fig. 1-3 visar olika faser i tillverkningssättet enligt uppfinningen och fig. 4 visar ett snitt genom en skiva enligt uppfinningen.The invention is described in the following with the aid of a suitable embodiment and reference to the accompanying drawings, in which Figs. 1-3 show different phases in the manufacturing method according to the invention and Fig. 4 shows a section through a disc according to the invention.

En skiva av cellpolyuretan och/eller två förstyvningsfolier beläggs 7905895-4 i förväg med en irreversibel polyuretanelastomer i form av två komponenter. För ändamålet blandas de två komponenterna i ett kärl, till vilket är anslutet en sprutpistol, vilken medger finfördel- ning av de blandade polyuretanelastomererna mot skivan och/eller förstyvningsfoliernal Blandningen torkar på 2-3 timmar vid rumstem- peratur eller på nâgra minuter vid torkning i varmluft eller med infrarödstrålare eller liknande i en ugn. ' Som fig. 1 visar bildas då en skiktad platta genom att skivan 1 på ömse sidor beläggs med folierna 2, varpå skiktplattan anordnas mel- lan två upphettade hällar 3 eller i en ugn, varvid hällarna har en temperatur av 170-220°C. Efter en värmningstid av 1-2 minuter mjuk- nar cellplasten och det elastomera bindemedlet smälter, varvid dess polymerisering startas genom värmningen. Den så erhållna skiktplat- tan uttages från hällarna eller ugnen och placeras genast i en press försedd med en stämpel 4 och en dyna 5, dvs efter en tid av mellan 3 och 10 sekunder och i genomsnitt 5 sekunder-för att formas medelst pressning (fig. 2). Pressen stängs därpâ.Under loppet av deforma- tionen av skivan genom pressning glider förstyvningsfolierna över gcellplastens ytor utan att sarga dem och följer utan spänning alla dess former tack vare smörjverkan av den smälta polyuretanelasto- meren (fig. 3). Skiktskivan hålles under tryck i pressen under 30 sekunder, vilket motsvarar avsvalningstiden med hjälp av cirkeleran- de kallvatten på insidan av stämpeln 4 och dynan 5. Efter kylning- en öppnas pressen för uttag av den formade skivan 6, vars form är fullständig, och vilken uppvisar hög styvhet på grund av den star- ka vidhäftningen mellan förstyvningsfolierna vid cellplasten sedan elastomeren hârdnat vid övergången från sin roll som smörjmedel till bindemedel. ' Efter uttaget av skivan.6 från pressen fortsätter polymeriserings- processen under ännu 48 timmar då den är fullständig och processen dirreversibel, så att även om skivan hålls vid en temperatur av 150°C -detta icke medför smältning av elastomeren.A sheet of cellular polyurethane and / or two stiffening foils are pre-coated with an irreversible polyurethane elastomer in the form of two components. For this purpose, the two components are mixed in a vessel, to which a spray gun is connected, which allows atomization of the mixed polyurethane elastomers against the disc and / or stiffening foil. The mixture dries in 2-3 hours at room temperature or in a few minutes when drying in hot air or with infrared radiators or similar in an oven. As Fig. 1 shows, a layered plate is then formed by coating the disc 1 on both sides with the foils 2, whereupon the layer plate is arranged between two heated hobs 3 or in an oven, the hobs having a temperature of 170-220 ° C. After a heating time of 1-2 minutes, the foam softens and the elastomeric binder melts, starting its polymerization by heating. The layer plate thus obtained is removed from the hobs or oven and immediately placed in a press provided with a stamp 4 and a pad 5, i.e. after a time of between 3 and 10 seconds and an average of 5 seconds - to be formed by pressing (fig. 2). The press is then closed. During the course of the deformation of the disc by pressing, the stiffening foils slide over the surfaces of the cellular plastic without scarring them and follow without tension all its shapes thanks to the lubricating action of the molten polyurethane elastomer (Fig. 3). The layer disc is kept under pressure in the press for 30 seconds, which corresponds to the cooling time by means of circulating cold water on the inside of the piston 4 and the pad 5. After cooling, the press is opened for removal of the shaped disc 6, the shape of which is complete, and which exhibits high rigidity due to the strong adhesion between the stiffening foils of the foam after the elastomer has hardened during the transition from its role as lubricant to binder. After removing the board.6 from the press, the polymerization process continues for another 48 hours when it is complete and the process is reversible, so that even if the board is kept at a temperature of 150 ° C - this does not cause the elastomer to melt.

Förstyvningsfolierna 2 kan bestå av papper och isynnerhet av kraft- papper, av glasfibermatta, av filtade fibrer, av vävnad av ett skiktmaterial eller liknande.The stiffening foils 2 can consist of paper and in particular of kraft paper, of glass fiber mat, of felted fibers, of fabric of a layer material or the like.

Styvheten hos skivan 6 erhålls med hjälp av folierna 2, vilka vid formningen limmas mot skivan 1. Under formningen medger den irre- 79Û5895'4 4. versibla polyuretanelastomeren, vilken smälter vid uppvärmningen, en glidning av folierna-2 utmed plattans 1 ytor så att folierna 2 följer förändringarna i cellplastens relief längs pressverkty- get och antar dess former utan att sarga ytan och utan skadliga ispânningar.The rigidity of the disc 6 is obtained by means of the foils 2, which are glued to the disc 1 during molding. the foils 2 follow the changes in the relief of the cellular plastic along the pressing tool and assume its shapes without scarring the surface and without harmful ice stresses.

Uppfinningen möjliggör tillverkning av t.ex. en självbärande, for- mad skiva om 2 m2 och en vikt av 1,5 kg med utgångspunkt från en cellplastskiva av 15 mm tjocklek och en täthet av 50 g/l.The invention enables the manufacture of e.g. a self-supporting, shaped board of 2 m2 and a weight of 1.5 kg based on a foam board of 15 mm thickness and a density of 50 g / l.

Uppfinningen är naturligtvis icke begränsad till den beskrivna utföringsformen eller ritningarnas figurer. Modifikationer är isyn- nerhet möjliga rörande bindemedlets sammansättning inom uppfinnin- gens ram.The invention is of course not limited to the described embodiment or the figures of the drawings. Modifications are particularly possible regarding the composition of the binder within the scope of the invention.

Claims (5)

7905895-4 _Patentkrav7905895-4 _Patentkrav 1.* Sätt att genom deformation under tryck vid förhöjd temperatur tillverka formade, armerade cellpolyuretanskivor, k ä n n e - t e c k n a t av-att cellplastskivan, som utgöres av en halvstel ,polyuretan, på ömse sidor beläggs med en förstyvningsfolie, var- vid skivan och/eller folierna är belagda med ett bindemedel, som utgörs av en irreversibel polyuretanelastomer, vilken är reakti- verbar med värme och vilken innefattar två polymeriserbara kom- ponenter, att skivan med de två folierna placeras i en ugn eller mellan tvâ uppvärmda hällar under 1-2 minuter vid en temperatur av 170-220°C, att därefter den sammansatts skivan uttages från värmekällan och genast efter en tid mellan 3-10 sekunder och ige- nomsnitt 5 sekunder placeras i en press försedd med en stämpel och en dyna, att skiktplattan pressas under 30 sekunder, varvid binde- medlet tjänar som smörjmedel för förstyvningsfolierna, till dess att den svalnat samt att slutligen pressen öppnas och den slut- giltigt formade skivan tas ut.1. * A method of making shaped, reinforced cellular polyurethane sheets by deformation under pressure at elevated temperature, characterized in that the foam sheet, which consists of a semi-rigid, polyurethane, is coated on both sides with a stiffening foil, whereby the sheet and / or the foils are coated with an adhesive which consists of an irreversible polyurethane elastomer, which is heat reactivatable and which comprises two polymerizable components, that the disc with the two foils is placed in an oven or between two heated hobs for 1-2 minutes at a temperature of 170-220 ° C, that the composite disc is then removed from the heat source and immediately after a time between 3-10 seconds and an average of 5 seconds placed in a press equipped with a stamp and a pad, that the layer plate is pressed for 30 seconds, the binder serving as a lubricant for the stiffening foils, until it has cooled down and finally the press is opened and the finally formed disc is removed. ut. 2. ' 2. Sätt enligt krav 1, k ä n n e t e c k n a t av att binde- medlet efter sin reaktivering medelst värme tjänar som smörjmedel för förstyvningsfolierna utmed cellplastskivan, samt att bindemed- let efter kylning hårdnar. '2. A method according to claim 1, characterized in that the adhesive, after its reactivation by heat, serves as a lubricant for the stiffening foils along the foam sheet, and that the adhesive hardens after cooling. ' 3. Sätt enligt något av krav 1-2, k ä n n e t e c k n a t av att bindemedlet är en elastomer, som polymeriserar efter smältning genom uppvärmning, varvid polymeriseringen fortskrider efter form- . ningen i 48 timmar, så att processen blir irreversibel även då den formade skivan underkastas en temperatur av 150°C.3. A method according to any one of claims 1-2, characterized in that the binder is an elastomer which polymerizes after melting by heating, the polymerization proceeding according to shape. for 48 hours, so that the process becomes irreversible even when the formed disc is subjected to a temperature of 150 ° C. 4. Sätt enligt något av krav 1-3, k ä n n e t e c k n a t av att det irreversibla bindemedlet har en sammansättning av en förs- ta komponent, innefattande 100 viktdelar monopolyuretan, samt en andra komponent innefattande 5-10 viktdelar isocyanathärdare.4. A method according to any one of claims 1-3, characterized in that the irreversible binder has a composition of a first component, comprising 100 parts by weight of monopolyurethane, and a second component comprising 5-10 parts by weight of isocyanate hardener. 5. Formad skiva, tillverkad enligt förfarande enligt krav 1, k ä n n e t e c k n'a d av att den väsentligen innefattar en tunn polyuretancellskiva samt på ömse sidor av skivan anbragta förstyv- ningsfolier, vilka är anbragta medelst ett bindemedel i form av en irriversibel polyuretanelastomer.5. A shaped sheet, made according to the method of claim 1, characterized in that it substantially comprises a thin polyurethane cell sheet and stiffening foils arranged on either side of the sheet, which are applied by means of an adhesive in the form of an irreversible polyurethane elastomer .
SE7905895A 1978-07-07 1979-07-05 FORMATED, ARMED CELL POLYURETAN DISC AND SET TO MANUFACTURE IT SE445985B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7821329A FR2430310A1 (en) 1978-07-07 1978-07-07 METHOD OF MANUFACTURING, BY HIGH-TEMPERATURE PRESSURE DEFORMATION, MOLTEN AND REINFORCED POLYURETHANE FOAM PANELS, AND PANEL OBTAINED THEREBY

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SE7905895L SE7905895L (en) 1980-01-08
SE445985B true SE445985B (en) 1986-08-04

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BE (1) BE877464A (en)
DE (1) DE2927360A1 (en)
ES (1) ES482286A1 (en)
FR (1) FR2430310A1 (en)
GB (1) GB2028714B (en)
IT (1) IT1124119B (en)
NL (1) NL7905316A (en)
PT (1) PT69859A (en)
SE (1) SE445985B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3138442C2 (en) * 1981-09-24 1984-01-26 Günter Hans 1000 Berlin Kiss Arrangement for lamination of molded parts
DE3239065C2 (en) * 1982-10-22 1984-08-30 Peguform-Werke GmbH, 7805 Bötzingen Process for the production of textile-laminated molded parts
US4698252A (en) * 1984-04-26 1987-10-06 Colamco, Inc. Composite foam articles and method for fabricating such articles
GB8520657D0 (en) * 1985-08-17 1985-09-25 Ac Scotland Plc Panel
US4741951A (en) * 1987-01-29 1988-05-03 Reeves Bros., Inc. Method for forming thermoformable polyurethane foam articles
IE880433L (en) * 1988-02-17 1989-08-17 H P Chemie Pelzer Res & Dev Lt Moulding, suitable for use in a motor vehicle and preferably¹comprising a sound proof layer
DE102009033701A1 (en) * 2009-07-16 2011-01-27 Premium Aerotec Gmbh Method for heating thermoplastic boards by means of heat conduction
GB2521348A (en) * 2013-12-04 2015-06-24 Nathan Lewis Automotive water shedder
DE102015007920A1 (en) * 2015-06-20 2016-12-22 Daimler Ag Method and tool for producing a composite component for a vehicle
DE102018217545A1 (en) * 2018-10-12 2020-04-16 BSH Hausgeräte GmbH Procedure and household appliance

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Publication number Priority date Publication date Assignee Title
BE575494A (en) * 1958-02-11 1959-05-29 Lonza Usines Electr Et Chim Sa Conformed laminate plate.
BE659912A (en) * 1964-02-19 1965-08-18
FR2336246A2 (en) * 1975-02-05 1977-07-22 Roth Sa Freres MANUFACTURING PROCESS OF SHAPED PANELS BASED ON CARDBOARD AND FOAM, AND PANELS THUS REALIZED

Also Published As

Publication number Publication date
GB2028714B (en) 1982-07-21
PT69859A (en) 1979-08-01
FR2430310B1 (en) 1981-06-26
DE2927360A1 (en) 1980-01-24
BE877464A (en) 1979-11-05
ES482286A1 (en) 1980-08-16
NL7905316A (en) 1980-01-09
IT7912659A0 (en) 1979-07-03
FR2430310A1 (en) 1980-02-01
GB2028714A (en) 1980-03-12
SE7905895L (en) 1980-01-08
IT1124119B (en) 1986-05-07

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