EP0911453A1 - Méthode pour produire des matériaux légers de construction résistante à la compression et poromère - Google Patents

Méthode pour produire des matériaux légers de construction résistante à la compression et poromère Download PDF

Info

Publication number
EP0911453A1
EP0911453A1 EP98120045A EP98120045A EP0911453A1 EP 0911453 A1 EP0911453 A1 EP 0911453A1 EP 98120045 A EP98120045 A EP 98120045A EP 98120045 A EP98120045 A EP 98120045A EP 0911453 A1 EP0911453 A1 EP 0911453A1
Authority
EP
European Patent Office
Prior art keywords
building material
lightweight
lightweight building
polyurethane
mold
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.)
Withdrawn
Application number
EP98120045A
Other languages
German (de)
English (en)
Inventor
Erwin Härtwich
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0911453A1 publication Critical patent/EP0911453A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls

Definitions

  • the invention relates to a method for producing pressure-resistant and breathable Lightweight building materials, the lightweight building material itself and its use.
  • a binder such as polyurethane a filler, such as cork granules or cork flour, as loose Fill the fill into a mold and form the molded part by curing. Resulting from it molded parts, for example for medical purposes as a shoe insert or similar can be used. Above all, such molded parts must be elastic in order to to meet the requirements for comfort when wearing.
  • EP 0 411 598 B1 also describes a process for producing polyurethane / cork granule compositions, where the polyurethane and the cork grains as Batch filled into a mold and the desired molded parts by heating and compression be formed. Moldings formed in this way are suitable for example for the production of soles for footwear.
  • the present invention was based on the object to provide a lightweight material that is pressure-resistant and breathable and at the same time can be produced inexpensively.
  • This object is achieved by a method in which filler particles are mixed with a binder wetted and the filler particles wetted in this way are filled into a mold as a loose fill be, the lightweight building material is formed by curing the molded part.
  • the filler particles are only wetted with the binder, with as little as possible from the binder used, one obtains breathable, moisture and Light building materials that prevent heat build-up.
  • the binder is preferably a plastic and this plastic is particularly preferred a polyurethane.
  • polyurethanes consist of an isocyanate and a polyol component.
  • diphenylmethane diisocyanate MDI
  • PMDI polymeric diphenylmethane diisocyanate
  • the polyurethane preferably cures at room temperature in a pot life of approximately 30 minutes.
  • the polyol component of the polyurethane consists of vegetable oil.
  • Vegetable oils include, in particular, sunflower, castor, soy, Rapeseed oil and mixtures thereof in question.
  • the invention is not based on use of such vegetable oils.
  • all polyols can be used as polyol components are used, which are not used in the polymerization reaction to form the polyurethane or just lightly foam and a pot life of about 30 min. exhibit.
  • the filler is preferably selected from the group consisting of cork granules, Expanded clay, expanded pearlite, vegetable fibers and mixtures thereof. Together with the The polyol component mentioned above has the particular advantage that it is a lightweight material can be made essentially from materials occurring in nature exists and its use in the field of ecological building is possible.
  • the mold can be shaken during curing. Thereby becomes an intimate connection between the only wetting binder and the Filler reached, but without leading to compression and the pores in the formed Close lightweight building material and prevent breathability.
  • the shape after filling the wetted filler particles on their open side essentially full surface with a breathable cover in the form of a coherent Layer of vegetable or artificial fibers or fabrics is provided.
  • This Measure may be required to keep the lightweight building material smooth on this side To give surface.
  • This effect can be improved by the fact that the cover is pressed against the wetted filler particles. There is only so much pressure as required to cover the entire surface substantially with the surface of the in to connect the filled, wetted filler particles. The pressure so exerted should do not serve to compact the particles themselves.
  • the invention also relates to a pressure-resistant and breathable lightweight building material is obtainable by the process according to the invention.
  • the invention further relates to the use of such a lightweight material as insulation, in the form of a floor slab, as a wall element and as a roof slab.
  • the lightweight building material When using the lightweight building material as an insulating element, its breathability is particularly important to carry.
  • z. B. house walls acts according to the invention Insulating element against moisture and heat build-up.
  • Insulating element against moisture and heat build-up The use of a very high proportion of natural raw materials possible, which makes the lightweight material also suitable for ecological building.
  • the lightweight building material is used in the form of floor panels, the special one exists Advantage that it can be used in conjunction with underfloor heating. This is due to the fact that the breathability of the lightweight building material does not result in heat build-up can. Rather, the heat given off by the underfloor heating becomes even the room, which is provided with the floor tiles according to the invention, given.
  • the lightweight building material according to the invention is in principle also suitable as a replacement screed.
  • the use according to the invention as a roof tile enables the replacement of roof tiles.
  • This has significant advantages in terms of the statics of the house, since roof tiles are a significant one Weight and thus put a great burden on the statics of a house.
  • it is necessary to face the roof panel in the form of the lightweight building material to be provided with a waterproof layer.
  • This use is advantageous further that the lightweight building material can also be formed in roof tile form, what is easily accessible by appropriate design of the form and what the usual Appearance of a house roof can be preserved.
  • plastic fibers can also be used instead of the vegetable fibers.
  • the polyol component of the polyurethane used consisted essentially of sunflower, Castor, soybean or rapeseed oil.
  • the manufacture of the lightweight building board was in each case performed so that each of the oils mentioned is used as the polyol component has been.
  • the ratios of binder and filler are determined on site by a person skilled in the art.
  • the filler particles 1 wetted in this way are in the form of a loose bed in one Figure filled with 3 designated plate shape.
  • the pot life for curing the polyurethane binder is about 30 minutes, the temperature of the surroundings being about 20 ° C.
  • the ambient temperature is set to around 130 ° C, which results in a pot life of about 1 min. revealed.
  • the filler particles 1 After filling in the form 3, the filler particles 1 with one in the drawing not shown and known vibrator throughout shaken pot life indicated above.
  • the shaking favors the wetting of the filler with the binder.
  • it causes the lightweight building material to solidify slightly, which, however, is not sufficient, as in the pressing processes known in the prior art, to reduce or destroy the breathability of the lightweight building material.
  • the slight solidification means better placement and alignment of the filler particles to understand each other and causes essentially no compression.
  • lightweight building boards are created, either already have the size of the desired panels or are manufactured and made as larger units can be sawn to the desired dimensions at a later date.
  • a block of slabs 2 to 3 m long, 1 m wide and 1 deep deep also made 1 m in a suitably large form 3 and then in slices sawn a desired thickness to give the lightweight building boards according to the invention.
  • This method of production has proven itself to quickly produce a large number of plates to be able to manufacture.
  • the filler particles 1 wetted according to example 1) form within the boundaries 5, 5 ', 5''of the mold 3 and, due to this, form smooth and uniform surfaces.
  • an essentially smooth surface is also formed on the open side of the mold 3.
  • an approximately full-area cover 7 in the form of a thin paper layer is applied here. Paper is also breathable and light, so that the advantages of the lightweight building board according to the invention are not diminished by the application of this layer.
  • a stamp 9 which is not completely shown in the figure, is now applied, the stamp surface 11 of which approximately corresponds to the opening of the mold 3 and thus its open side.
  • this stamp 9 is chosen so large that the paper layer is thereby pressed onto the surface of the batch 1 essentially over the entire surface. At the same time, this compensates for the surface in such a way that unevenness and uneven filling of the batch 1 into the mold 3 are compensated for.
  • the stamp 9 is then removed again. It should not compress the filler particles.
  • the lightweight building material panel produced according to example 1) and optionally additionally according to example 1a) was used as the floor panel.
  • the floor slab produced in this way shows a capillary effect, via which moisture and air can be exchanged with the surroundings.
  • This floor panel according to the invention is therefore particularly suitable as a covering where there is underfloor heating.
  • the floor slab is also pressure resistant. Tests have shown that the compressive strength is sufficient for heavy pieces of furniture, such as cupboards.
  • the floor plate of this embodiment is manufactured in the same way as under example 1 and 1a).
  • the cover 7 is not paper, but a jute fabric applied the surface of the filler particles 1. All polyol components specified in Example 1) have also been used successfully here.
  • Rapeseed oil as the polyol component and PMDI as the isocyanate are mixed in a ratio of 1: 1 and mixed with expanded clay as a filler so that there is wetting of the expanded clay particles.
  • the procedure is as described in Examples 1 and 1a).
  • cover 7 a layer of paper is used.
  • the other polyol components specified in Example 1) have also been used successfully.
  • Rapeseed oil as the polyol component and PMDI as the isocyanate are mixed in a ratio of 1: 1 and mixed with expanded pearlite in such a way that the pearlite particles are wetted. Otherwise the procedure is the same as that given in the exemplary embodiment under 2a). Also the cover 7 again consists of a paper layer.
  • Rapeseed oil as the polyol component and PMDI as the isocyanate are mixed in a ratio of 1: 1 and mixed with hemp fibers. Otherwise, the procedure is the same as in the exemplary embodiment 1) and 1a).
  • the cover 7 also consists of a paper layer.
  • a house wall element produced in this way can be used, for example, for the expansion of a Attic are used.
  • This house wall element is also manufactured as described under 3a). Instead of Hemp fibers, however, are flax fibers.
  • Such a lightweight building material roof panel is manufactured essentially like the floor panel in Example 1b). However, in order to be able to use it as an umbrella system, this is Provide the roof panel with a waterproof layer on the side facing outwards.
  • a water-impermeable layer can be in the form of a polyurethane layer, for example are applied in a manner known per se.
  • the roof tiles according to the invention are lightweight building material roof tiles.
  • the lightweight building material roof panels have the shape of roof tiles.
  • they advantageously lack the roof tiles own weight, so that there are considerable advantages for the statics of using the lightweight roof tiles provided house. In doing so, these lightweight building material roof tiles have to be fixed with the surface on which they are attached.
  • binder and filler as well as cover. It is of course also possible Manufacture floorboards using hemp or flax fibers or in one other way for insulation, roof panels and / or house wall elements another one large number of possible fillers and / or covers to use. Also as a binder Not only is polyurethane considered, but many other plastics can also be considered Binders can be used.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)
EP98120045A 1997-10-24 1998-10-23 Méthode pour produire des matériaux légers de construction résistante à la compression et poromère Withdrawn EP0911453A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19747189 1997-10-24
DE1997147189 DE19747189A1 (de) 1997-10-24 1997-10-24 Verfahren zur Herstellung von druckfesten und atmungsaktiven Leichtbaustoffen

Publications (1)

Publication Number Publication Date
EP0911453A1 true EP0911453A1 (fr) 1999-04-28

Family

ID=7846608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98120045A Withdrawn EP0911453A1 (fr) 1997-10-24 1998-10-23 Méthode pour produire des matériaux légers de construction résistante à la compression et poromère

Country Status (2)

Country Link
EP (1) EP0911453A1 (fr)
DE (1) DE19747189A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2000508A3 (fr) * 2007-06-02 2009-11-25 Glunz Ag Procédé de fabrication d'un corps de formage léger et flexible à base de fibres contenant de la lignocellulose
DE102008048541A1 (de) 2008-09-15 2010-04-15 Härtwich, Erwin Schicht-Verbundelement und Verfahren zu dessen Herstellung
US8846776B2 (en) 2009-08-14 2014-09-30 Boral Ip Holdings Llc Filled polyurethane composites and methods of making same
EP2853821A1 (fr) * 2013-09-25 2015-04-01 Köhler, Bettina Dispositif de chauffage
DE102014000036A1 (de) * 2014-01-06 2015-07-09 Erfurt & Sohn Kg Wandinnenplatte
US9481759B2 (en) 2009-08-14 2016-11-01 Boral Ip Holdings Llc Polyurethanes derived from highly reactive reactants and coal ash
US9932457B2 (en) 2013-04-12 2018-04-03 Boral Ip Holdings (Australia) Pty Limited Composites formed from an absorptive filler and a polyurethane
US10138341B2 (en) 2014-07-28 2018-11-27 Boral Ip Holdings (Australia) Pty Limited Use of evaporative coolants to manufacture filled polyurethane composites

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3004840A1 (de) 1980-02-09 1981-08-20 G. Siempelkamp Gmbh & Co, 4150 Krefeld Verfahren zur herstellung von korkgranulat-platten
EP0354526A2 (fr) * 1988-08-10 1990-02-14 Jacques Leclerc Mélange de liège pour sels insonorisants
US4947611A (en) * 1988-01-22 1990-08-14 Michio Otsuka A wall material, and method of preparing a wall material of soils and vegetable materials
EP0411598A2 (fr) 1989-08-02 1991-02-06 Gianfranco Losio Procédé pour fabriquer des composés de polyuréthane contenant des granulés de liège ou des substances similaires, notamment pour fabriquer des semelles de chaussures, appareil pour réaliser le procédé et produit fabriqué de cette façon
US5345738A (en) * 1991-03-22 1994-09-13 Weyerhaeuser Company Multi-functional exterior structural foam sheathing panel
DE19547156A1 (de) 1995-03-31 1996-10-02 Felsing Ohg Verfahren und Vorrichtung zur Herstellung von weichelastischen Formteilen, insbesondere weichelastischen Dekorationsmitteln zum Einstecken von Blumen und anderen Dekorationsgegenständen, auf der Basis von Korkgranulat

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3004840A1 (de) 1980-02-09 1981-08-20 G. Siempelkamp Gmbh & Co, 4150 Krefeld Verfahren zur herstellung von korkgranulat-platten
US4947611A (en) * 1988-01-22 1990-08-14 Michio Otsuka A wall material, and method of preparing a wall material of soils and vegetable materials
EP0354526A2 (fr) * 1988-08-10 1990-02-14 Jacques Leclerc Mélange de liège pour sels insonorisants
EP0411598A2 (fr) 1989-08-02 1991-02-06 Gianfranco Losio Procédé pour fabriquer des composés de polyuréthane contenant des granulés de liège ou des substances similaires, notamment pour fabriquer des semelles de chaussures, appareil pour réaliser le procédé et produit fabriqué de cette façon
US5345738A (en) * 1991-03-22 1994-09-13 Weyerhaeuser Company Multi-functional exterior structural foam sheathing panel
DE19547156A1 (de) 1995-03-31 1996-10-02 Felsing Ohg Verfahren und Vorrichtung zur Herstellung von weichelastischen Formteilen, insbesondere weichelastischen Dekorationsmitteln zum Einstecken von Blumen und anderen Dekorationsgegenständen, auf der Basis von Korkgranulat

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2000508A3 (fr) * 2007-06-02 2009-11-25 Glunz Ag Procédé de fabrication d'un corps de formage léger et flexible à base de fibres contenant de la lignocellulose
DE102008048541A1 (de) 2008-09-15 2010-04-15 Härtwich, Erwin Schicht-Verbundelement und Verfahren zu dessen Herstellung
US8846776B2 (en) 2009-08-14 2014-09-30 Boral Ip Holdings Llc Filled polyurethane composites and methods of making same
US9481759B2 (en) 2009-08-14 2016-11-01 Boral Ip Holdings Llc Polyurethanes derived from highly reactive reactants and coal ash
US9932457B2 (en) 2013-04-12 2018-04-03 Boral Ip Holdings (Australia) Pty Limited Composites formed from an absorptive filler and a polyurethane
US10324978B2 (en) 2013-04-12 2019-06-18 Boral Ip Holdings (Australia) Pty Limited Composites formed from an absorptive filler and a polyurethane
EP2853821A1 (fr) * 2013-09-25 2015-04-01 Köhler, Bettina Dispositif de chauffage
DE102014000036A1 (de) * 2014-01-06 2015-07-09 Erfurt & Sohn Kg Wandinnenplatte
US10138341B2 (en) 2014-07-28 2018-11-27 Boral Ip Holdings (Australia) Pty Limited Use of evaporative coolants to manufacture filled polyurethane composites

Also Published As

Publication number Publication date
DE19747189A1 (de) 1999-04-29

Similar Documents

Publication Publication Date Title
WO1993024719A1 (fr) Revetement en liege, notamment pour planchers
DE1504636B1 (de) Verfahren zum herstellen eines zellartigen oder porigen erzeug nisses aus polyurethan schaum und glasfasern
DE3533625C2 (fr)
EP2376400B1 (fr) Corps moulé à pores ouverts et procédé de fabrication associé
EP0911453A1 (fr) Méthode pour produire des matériaux légers de construction résistante à la compression et poromère
DE2312666A1 (de) Werkstoff aus gummiabfaellen, insbesondere aus reifenschnitzeln
DE19963096C1 (de) Verfahren zur Herstellung Polyurethan-gebundener Formkörper aus Lignocellulose-haltigen Partikeln
EP0640030B1 (fr) Procede de fabrication d'un element de construction leger se presentant sous forme de panneau ou de carreau
EP1606969A2 (fr) Piece acoustique en mousse composite
EP0524920A1 (fr) Nouveaux objets moules
DE1453374B2 (de) Verfahren zur herstellung von verbundkoerpern
EP3444086B1 (fr) Plaque multifonction en bois et en fibres à deux composants et procédé de fabrication associé
DE102005009270B4 (de) Verfahren zur Herstellung eines Baustoffes und Baustoff
EP1396325B1 (fr) Procédé de production de panneau coupe-feu
AT401268B (de) Schaumstoffelement, insbesondere formteil aus einer oder mehreren platten aus schaumstoff und verfahren zu seiner herstellung
EP0998387B1 (fr) Materiau sous forme de panneau
DE1704551B2 (de) Verfahren zum Herstellen von Leicht baustoffen aus Perlen, aus geschäumtem Polystyrol oder einem gleichartigen feinkornigen Isolierstoff
EP0009053A1 (fr) Procédé pour la fabrication de panneaux ou autres éléments en fibres de bois résistant aux intempéries et panneaux ou autres éléments fabriqués selon ce procédé
DE3215684C2 (fr)
DE602004011020T2 (de) Verbundwerkstoffe
DE3310227C2 (de) Verfahren und zur Herstellung eines Fassadenelementes aus Beton mit strukturierter Sichtbetonoberfläche
DE10019662B4 (de) Verfahren zum Herstellen einer Platte sowie nach diesem Verfahren hergestellte Platte
DE4225333C2 (de) Verfahren zur Herstellung von Formkörpern aus Altgummi sowie hiernach hergestellter Formkörper
EP3424706A1 (fr) Composant en forme de plaque et son procédé de fabrication
WO2000069609A1 (fr) Procede de realisation d"une plaque et plaque fabriquee selon ce procede

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid

Free format text: DE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19991029