WO1999046457A1 - Coating on a leather basis having high thermal and sound insulating properties - Google Patents

Coating on a leather basis having high thermal and sound insulating properties Download PDF

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Publication number
WO1999046457A1
WO1999046457A1 PCT/HU1999/000019 HU9900019W WO9946457A1 WO 1999046457 A1 WO1999046457 A1 WO 1999046457A1 HU 9900019 W HU9900019 W HU 9900019W WO 9946457 A1 WO9946457 A1 WO 9946457A1
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WO
WIPO (PCT)
Prior art keywords
leather
mass
coating
weight
ground
Prior art date
Application number
PCT/HU1999/000019
Other languages
German (de)
French (fr)
Inventor
Attila Ferenc Tiszai
Original Assignee
Attila Ferenc Tiszai
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 Attila Ferenc Tiszai filed Critical Attila Ferenc Tiszai
Priority to AU29497/99A priority Critical patent/AU2949799A/en
Priority to DE19980377T priority patent/DE19980377B4/en
Publication of WO1999046457A1 publication Critical patent/WO1999046457A1/en

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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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/18—Waste materials; Refuse organic
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26—Silicates of the alkali metals
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D189/00—Coating compositions based on proteins; Coating compositions based on derivatives thereof
    • C09D189/04—Products derived from waste materials, e.g. horn, hoof or hair
    • C09D189/06—Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482—Coating or impregnation materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the invention relates to a coating which can be applied with water and diluted with high heat and sound insulation from leather materials. According to the invention, after dilution with water on the spot, coatings of any thickness can be applied by hand or with a machine, of course
  • Wall coverings are produced in a conventional manner using mortar (mixture of sand, lime, cement and water) by plastering by hand or by machine.
  • the wall surface created in this way is limed, painted, smoothed or papered.
  • the so-called liquid wallpaper products are manufactured using paper and textile waste as well as minerals.
  • the basic materials are ground, colored, and a powdery wallpaper glue is added to the mixture obtained.
  • the mixture is mixed in at the place of use mixed with water and then sprayed onto the wall using compressed air or even applied by hand.After drying, the surface of the covering acts like a decorative textile wallpaper.With this material, very thin, wallpaper-thick coatings can be produced - very costly - so the warmth is - and soundproofing of the cover despite the good insulating properties of the textiles low
  • the cover cannot be colored arbitrarily, since the basic material is darkly toned, this determines the color of the cover.
  • the cover produced in this way becomes slightly stained because durc h
  • the large amount of water used in the process can be used to remove previous impurities from the wall, which are then conducted to the surface by the paper and textile fibers in the coating. For this reason, high demands are made on the surface preparation of the surface to be coated. 2
  • a noise and heat insulating composition is known from HU 187 067, which comprises finely dispersed leather dust of animal origin, phenoplast or aminoplast and, together with the latter, optionally urea and / or modified furan resin, further optionally Wetting and / or foaming agent as well as an acidic catalyst and possibly water.
  • This composition can be used to produce sound and heat-insulating panels that can be mounted on the wall under operating conditions, but the composition is - primarily because of its importance for the catalysis of chemical processes high acidity - not suitable for immediate use in apartments, in rooms in which living things reside. Accordingly, there was a need for a good sound and heat insulation
  • the object of the invention was therefore to provide a coating which is easy to apply and without surface preparation and which is capable of high levels of heat and sound insulation 3
  • the solution worked out should expediently also have the disadvantages of the known solutions (poor insulating ability, poor adhesion, waterproof character and / or the Eliminate the need for a pretreatment that seals against water
  • the object of the invention is a water-dilutable coating with high heat and sound insulation ability made of leather materials, consisting of
  • ground leather which in an amount of 70-95% by mass contains particles of the size of 0.5-4 mm and / or flaky ground elementary fibers of 1-15 mm in length, and 2-20% by mass of adhesive, or a mixture of 50-94% by mass of ground leather and 1-48% by mass of fillers, further 2-20% by mass of glue and, in the case of colored coatings, on the mass of ground leather or the total mass of ground leather and fillers calculated at most 15% by mass of dye.
  • refractory coatings By adding 1-10% by mass of soluble silicates, refractory coatings can be obtained.
  • the solution set out fulfills the objects of the invention.
  • the coating according to the invention can be colored as desired, it can be applied to the wall surface by hand (with a tool) and mechanically be applied, and it contains as a binder only adhesives that are harmless to the living organism.
  • the basic material of the cover is the waste of the leather processing industry, pieces of different sizes and shapes made from tanned leather, raw leather, leather with fur, occasionally filler, for example synthetic leather, fiber materials of natural and artificial origin. These fabrics are characterized by good heat and sound insulation properties
  • the leather waste used as the base material of the cover material becomes grain or fibers.
  • Certain hard-tanned leather types result in a granular regrind, while the softer leather types become flaky depending on their elementary fiber structure when grinding granular, the thickness of the coating is determined by the greatest expansion of the grains, which in practice is 0.5-4 mm.
  • Soft leather is ground to a fiber length of 1-15 mm for thicker coatings, to a shorter fiber length for thinner coatings
  • the leather waste from the tanned leather processing industry for example from the shoe factories, cannot be sorted into hard and soft leather.
  • a mixed waste arises in the manufacture of shoes, which consists, among other things, of upper leather, lining and sole leather.
  • the leather grist consists of a mixture of granular and flaky particles. Both dimensions must therefore be taken into account when determining the thickness of the coating.
  • the leather waste is crushed in the first stage to pieces of 1-150 mm 2 , then 70-95% of the starting material, depending on the desired thickness of the coating, to grains of 0.5-4 mm in size and / or a 1- Mill 15 mm long flaky material containing elementary fibers.
  • the lower limit is to be used for thin coatings, the upper limit for the ranges specified for coatings with a thickness of several mm, the quantity stated in mass% being inversely proportional to the linear dimension of the regrind particles.
  • 80-98% by weight of leather pulp are used 5
  • the covering material contains 2-20% by mass of adhesive.
  • adhesive proteins, starch, dextrin and soluble silicates that are harmless to the human and animal organism can be used be used.
  • Wallpaper adhesive of the carboxymethyl cellulose (CMC) type is preferably used.
  • the adhesive used in the exemplary embodiments is a product with the trade name MAVIBOND EXTRA (manufacturer Zoltek Rt, Nyerges ⁇ jfalu, HU).
  • the cover can be dyed by a maximum of 15% by mass of dye based on the amount of the ground leather.
  • the basic color of the cover is determined by the color composition of the sorted colored leather residues
  • the covering material In order to be able to apply the covering material by machine or by hand, it is soaked in the appropriate amount of water at the place of use, depending on the temperature of the water, for 10-60 minutes. During this pasting process, part of the dyes of the ground leather, in particular the fuzzy leather material, drawn out, so if a lighter shade is desired, it is not necessary to add dyes. For medium or darker color shades, however, the addition of dye is essential
  • the coating material is mixed with an appropriate amount of water and applied to the wall to be treated. After the water has evaporated and the adhesive has set, the coating of the desired thickness and color becomes firm.
  • the covering material used to produce the cover according to the invention contains the following constituents: 55% by weight of ground leather (which consists in part of a mass of powdery ground material and 2 parts by mass of at most 5 mm long elementary fibers), 20% by mass of textile ground from at most 5 mm long fibers 99% by weight of ground paper, 0.01% by weight of mica to achieve a decorative effect and 15% by weight of powdery CMC wallpaper glue.
  • the 150 g CMC wallpaper glue calculated on 1000 g mass of the above coating material, is dissolved in 1000 g lukewarm water and lump-free stirred. The remaining constituents, calculated on 1000 g of coating material, are added with constant stirring, then a further 4000 g of lukewarm water are added to the mixture obtained.
  • the viscous mixture obtained in this way is applied and smoothed to the wall surface prepared in the usual way, smoothed and coated with dispersion wall paint. Allow the mass to dry for an hour and then smooth it out with a stick. After drying for 48 hours, the 3-4 mm thick, very good heat and sound insulating and also sound absorbing cover is ready. The very decorative wall surface treated in this way appears rougher compared to smoothed wall surfaces.
  • a batch of 30 kg is prepared from the coating material of the composition given in Example 1, with the difference that the mica is not added to the mixture.
  • the prepared coating is sprayed with a mortar spray gun onto the brick wall, prepared in the usual way, of a basement insufficiently insulated against water in an old building in 3 layers. 15% by mass of the prepared mixture is applied to the wall in a uniform thickness as the first layer. After the surface of the first layer has dried (24 hours), the second layer is formed from 75% by mass of the mixture. Now the gum is stirred into the remaining 10 mass% of the mixture and the third layer is applied with this mass.
  • Example 3 1000 g of regrind from tanned leather, which regrind comprises 20% by mass
  • regrind from tanned leather which regrind consists of 15% by mass of a fraction of at most 3 mm particle size and 85% by mass of elementary fibers with an average length of 4 mm
  • 400 g of synthetic leather regrind of 0.5-2 mm particle size 100 g of powdered CMC wallpaper adhesive, 1500 g of water glass and 7000 g of water are mixed together and used to Swelling allowed to stand for 30 minutes. The mixture is stirred thoroughly every 5 minutes and then homogenized after adding a further 1000 g of water. The homogeneous mixture obtained is applied to a wall surface of 10 m 2. After drying for 24 hours, a 3 mm thick coating is obtained, which as a result of the water glass additive is flame-proof
  • the coating material can be smoothed evenly without any particular effort.
  • a high air pressure (1-12 bar) is required, in some cases the wall must be artificially roughened to ensure the appropriate adhesion during preparation.
  • an air pressure of 3-3.5 bar is sufficient to produce the coating according to the invention.
  • the covering material is very easy to smooth, even on vertical, dusty glass surfaces. The extraordinarily good adhesion of the covering material is demonstrated by the fact that a circular covering of 6-8 mm thick, 30 cm in diameter, applied by locking onto a vertically arranged PVC foam, does not slip. not even if the film is moved
  • the coating according to the invention is only sensitive to very coarse contaminations of the surface (for example rust), for wall surfaces of average quality it is sufficient to paint the surface beforehand with a dispersion wall paint.
  • the coating according to the invention can also be formed directly on plastered walls or raw concrete surfaces.
  • the coating is permeable to air because of its porous structure, which ensures ventilation of the coated surface.
  • the extraordinarily good adhesion of the coating according to the invention makes it possible to produce coatings from several layers. Since the covering is already 3-4 mm thick and is extremely well insulated against heat and sound (according to our own measurements, it is about 15 cm thick brick wall), an extraordinarily good heat and sound insulation can be achieved by using a multi-layer covering.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

The invention relates to a coating based on leather materials, which is applied dissolved in water and has high thermal and sound insulating properties. Said coating consists of: between 0 and 98 % by weight ground leather which contains between 70 and 95 % by weight particles between 0.5 and 4 mm in size and/or filaments between 1 and 15 mm in length which have been ground to flakes, as well as between 2 and 20 % by weight of glue; or a mixture of between 50 and 94 % by weight ground leather and between 1 and 48 % by weight fillers as well as between 2 and 20 % by weight glue; in the case coloured coatings no more than 15 % by weight, in relation to the weight of ground leather or total weight of ground leather and fillers, of a dye. The invention also relates to a coating of the type described above which in addition contains between 1 and 10 % by weight soluble silicates to ensure fire resistance.

Description

Überzug von hoher Wärme- und Schallisolierung auf Lederbasis Covering of high heat and sound insulation on leather basis
Die Erfindung betrifft einen mit Wasser verdünnt aufbringbaren Überzug hoher Warme- und Schallisolierfahigkeit aus Ledermaterialien Erfϊndungsgemaß können nach an Ort und Stelle vorgenommenem Verdünnen mit Wasser Überzüge beliebiger Dicke durch Auftragen von Hand oder mit einer Maschine, m naturlicherThe invention relates to a coating which can be applied with water and diluted with high heat and sound insulation from leather materials. According to the invention, after dilution with water on the spot, coatings of any thickness can be applied by hand or with a machine, of course
Farbe oder eingefarbt und/oder in feuerfester Ausführung hergestellt werdenColor or colored and / or manufactured in a fire-resistant version
Wanduberzuge werden in herkömmlicher Weise unter Verwendung von Mörtel (Gemisch aus Sand, Kalk, Zement und Wasser) durch Verputzen von Hand oder maschinell hergestellt Die auf diese Weise geschaffene Wandflache wird gekalkt, angestrichen, geglättet oder tapeziert Bei in Blockbauweise hergestellten Wohnungen genügt es, vor dem Tapezieren die Fabrikationsfehler auszubessern, an den Stoßstellen der Elemente die Niveauunterschiede auszugleichenWall coverings are produced in a conventional manner using mortar (mixture of sand, lime, cement and water) by plastering by hand or by machine. The wall surface created in this way is limed, painted, smoothed or papered. For apartments made in block construction, it is sufficient the wallpapering to correct the manufacturing defects, to compensate for the level differences at the joints of the elements
Die Warme- und Schallisolierfahigkeit dieser Wanduberzuge ist sehr schlecht, die Wohnungen sind infolgedessen kalt und laut, den gegenwartig gültigen Warme- und Schallisolierungsvorschriften entsprechen sie nichtThe heat and sound insulation ability of these wall coverings is very poor, the apartments are consequently cold and noisy, they do not comply with the currently applicable heat and sound insulation regulations
Um die Warme- und Schallisolierfahigkeit zu verbessern, werden unter Verwendung von Papier- und Textilabfallen sowie Mineralstoffen die als sog flussige Tapete bezeichneten Produkte hergestellt Die Grundmaterialien werden vermählen, eingefarbt, und dem erhaltenen Gemisch wird ein pulverfbrmiger Tapetenleim zugesetzt Das Gemisch wird am Ort der Verwendung mit Wasser vermischt und dann unter Anwendung von Druckluft auf die Wand gesprüht oder auch von Hand aufgetragen Nach dem Trocknen wirkt die Oberflache des Überzuges wie eine dekorative Textiltapete Mit diesem Material können - sehr kostenaufwendig - nur dünne, tapetendicke Überzüge hergestellt werden, daher ist die Warme- und Schallisolierung des Überzuges trotz der guten Iso ereigenschaften der Textilien gering Der Überzug kann nicht beliebig eingefarbt werden, da das Grundmateπal dunkel getont ist, dies determiniert die Farbe des Überzuges Der auf die beschriebene Weise hergestellte Überzug wird leicht fleckig, weil durch die in dem Verfahren verwendete große Wassermenge frühere Verunreinigungen aus der Wand herausgelost werden können, die dann von den in dem Überzug befindlichen Papier- und Textilfasern an die Oberflache geleitet werden Aus diesem Grund werden an die Oberflächenvorbereitung der zu überziehenden Oberflache hohe Anforderungen ge- 2In order to improve the heat and sound insulation ability, the so-called liquid wallpaper products are manufactured using paper and textile waste as well as minerals. The basic materials are ground, colored, and a powdery wallpaper glue is added to the mixture obtained. The mixture is mixed in at the place of use mixed with water and then sprayed onto the wall using compressed air or even applied by hand.After drying, the surface of the covering acts like a decorative textile wallpaper.With this material, very thin, wallpaper-thick coatings can be produced - very costly - so the warmth is - and soundproofing of the cover despite the good insulating properties of the textiles low The cover cannot be colored arbitrarily, since the basic material is darkly toned, this determines the color of the cover. The cover produced in this way becomes slightly stained because durc h The large amount of water used in the process can be used to remove previous impurities from the wall, which are then conducted to the surface by the paper and textile fibers in the coating. For this reason, high demands are made on the surface preparation of the surface to be coated. 2
stellt. Die bekannten Verfahren schreiben Tiefengrundierung, Grundierung und Deckgrundierung vor, wodurch das Verfahren außerordentlich zeitaufwendig, schwer ausführbar und teuer wird. Darüber hinaus sind die verwendeten Grundierungen wasserdicht und hindern die Lüftung der behandelten Wand Aus HU 187 067 ist eine gerausch- und warmeisolierende Komposition bekannt, welche feindispersen Lederstaub tierischen Ursprungs, Phenoplast oder Aminoplast und mit letzterem zusammen gegebenenfalls Harnstoff und/oder modifiziertes Furanharz, ferner gegebenenfalls Netz- und/oder Schaummittel sowie einen sauren Katalysator und gegebenenfalls Wasser enthalt Mit dieser Komposition können unter Betriebsbedingungen nachtraglich auf die Wand montierbare, schall- und warmeisolierende Tafeln hergestellt werden, jedoch ist die Komposition - in erster Linie wegen ihres zur Katalyse der chemischen Prozesse notwendigerweise hohen Sauregehaltes - zur unmittelbaren Verwendung in Wohnungen, in Räumen, in denen sich Lebewesen aufhalten, nicht verwendbar Es bestand demnach Bedarf an einem gut schall- und warmeisolierendenprovides. The known methods prescribe deep primer, primer and top primer, which makes the method extremely time-consuming, difficult to carry out and expensive. In addition, the primers used are watertight and prevent ventilation of the treated wall. A noise and heat insulating composition is known from HU 187 067, which comprises finely dispersed leather dust of animal origin, phenoplast or aminoplast and, together with the latter, optionally urea and / or modified furan resin, further optionally Wetting and / or foaming agent as well as an acidic catalyst and possibly water. This composition can be used to produce sound and heat-insulating panels that can be mounted on the wall under operating conditions, but the composition is - primarily because of its importance for the catalysis of chemical processes high acidity - not suitable for immediate use in apartments, in rooms in which living things reside. Accordingly, there was a need for a good sound and heat insulation
Überzug, der aus billigen Grundstoffen und mit einem einfach auszuführenden Verfahren, ohne aufwendige Oberflachenvorbereitung aufgetragen werden kannCoating that can be applied from cheap raw materials and with an easy-to-carry out process, without expensive surface preparation
Gleichzeitig ist es eine Tatsache, daß in der lederverarbeitenden Industrie der bei der Verarbeitung (dem Zuschneiden) des chromgegerbten naturlichen Leders in großer Menge (10-30 %) anfallende sog. Lederabschnitt Schwierigkeiten bereitet Diese Lederreste sind im wesentlichen Abfall, da bislang nur sehr wenig davon genutzt wird (unter anderem als zerkleinertes Füllmaterial zur Herstellung von Schuhsohlen sehr bescheidener Qualität) Der überwiegende Teil des Lederabschnittes wird als Abfall deponiert oder verbrannt. Wegen der beim Gerben in das Leder gelangenden Chromverbindungen wird der Lederabschnitt als gefahrlicher Abfall eingestuft, und zwar, weil das auf Abfallhalden gelagerte Material bei längerem Kontakt mit Wasser zersetzt werden kann und es deshalb zum Herauslosen des Chroms kommt Wegen der hohen Kosten der Abfallbehandlung und wegen der großen Menge des anfallenden Lederabschnittes besteht das Bedürfnis, diesen Abfall als Sekundärrohstoff zu nutzen.At the same time, it is a fact that in the leather processing industry the so-called leather section which arises when processing (cutting) the chrome-tanned natural leather in large quantities (10-30%) causes difficulties. These leather residues are essentially waste, since so far only very little of which is used (among other things as shredded filling material for the production of shoe soles of very modest quality) The majority of the leather section is deposited or burned as waste. Because of the chromium compounds that get into the leather during tanning, the leather section is classified as hazardous waste, because the material stored on waste dumps can decompose on prolonged contact with water and the chromium is therefore removed due to the high costs of waste treatment and because The large amount of the leather section is required to use this waste as a secondary raw material.
Aufgabe der Erfindung war es daher, einen einfach und ohne Oberflachenvorbereitung auftragbaren Überzug hoher Warme- und Schallisolierfahigkeit 3The object of the invention was therefore to provide a coating which is easy to apply and without surface preparation and which is capable of high levels of heat and sound insulation 3
auszuarbeiten, dessen Grundmaterial gemahlene Lederabfalle sind, wodurch auch das Problem, die Abfalle der Lederverarbeitung zu beseitigen, in wirtschaftlicher Weise gelost werden kann Die ausgearbeitete Losung soll zweckmäßig auch die Nachteile der bekannten Losungen (schlechte Isolierfähigkeit, schlechte Haftung, wasserdichter Charakter und/oder die Notwendigkeit einer gegen Wasser abdichtenden Vorbehandlung) beseitigento work out, the base material of which is ground leather waste, which also enables the problem of eliminating the waste from leather processing to be solved in an economical manner. The solution worked out should expediently also have the disadvantages of the known solutions (poor insulating ability, poor adhesion, waterproof character and / or the Eliminate the need for a pretreatment that seals against water
Überraschenderweise wurde nun gefunden, daß die vorteilhaften Eigenschaften des als Fläche vorliegenden natürlichen Leders, zum Beispiel die gute Warme- und Schallisolierfahigkeit, bewahrt werden können, wenn man den Lederabfall vermahlt, die Oberflache des Mahlgutes flockig macht und dann das Mahlgut mit Klebstoff und Wasser vermischt als flussige Tapete auf die Wand auftragt Ebenfalls überraschend ist die außerordentlich gute Haftung des auf diese Weise hergestellten Uberzugsmaterials, die einesteils den Vorgang des Auftragens vereinfacht und zum anderen ermöglicht, einen aus mehreren Schichten bestehenden Überzug der gewünschten Dicke und Isolierfähigkeit auszubilden Die Erfindung beruht auf diesen ErkenntnissenSurprisingly, it has now been found that the advantageous properties of the natural leather present as a surface, for example the good heat and sound insulation ability, can be preserved if the leather waste is ground, the surface of the material to be ground is flaky and then the material to be ground is mixed with adhesive and water applied to the wall as a liquid wallpaper Also surprising is the extraordinarily good adhesion of the coating material produced in this way, which on the one hand simplifies the application process and on the other hand enables a coating of several layers of the desired thickness and insulation ability to be formed. The invention is based on this Realizations
Gegenstand der Erfindung ist ein mit Wasser verdünnt aufbringbarer Überzug hoher Warme- und Schallisolierfahigkeit aus Ledermaterialien, bestehend ausThe object of the invention is a water-dilutable coating with high heat and sound insulation ability made of leather materials, consisting of
80-98 Masse% gemahlenem Leder, das in einer Menge von 70-95 Masse% Teilchen der Große von 0,5-4 mm und/oder flockig gemahlene Elementarfasern von 1-15 mm Lange enthält, und 2-20 Masse% Klebstoff, oder einem Gemisch von 50-94 Masse% gemahlenem Leder und 1-48 Masse% Füllstoffen, ferner 2-20 Masse% Klebstoff und im Fall farbiger Überzuge auf die Masse des gemahlenen Leders bezie- hungsweise auf die Gesamtmasse von gemahlenem Leder und Füllstoffen gerechnet höchstens 15 Masse% Farbstoff.80-98% by mass of ground leather, which in an amount of 70-95% by mass contains particles of the size of 0.5-4 mm and / or flaky ground elementary fibers of 1-15 mm in length, and 2-20% by mass of adhesive, or a mixture of 50-94% by mass of ground leather and 1-48% by mass of fillers, further 2-20% by mass of glue and, in the case of colored coatings, on the mass of ground leather or the total mass of ground leather and fillers calculated at most 15% by mass of dye.
Durch Zusatz von 1-10 Masse% loslicher Silikate können feuerfeste Überzüge erhalten werden.By adding 1-10% by mass of soluble silicates, refractory coatings can be obtained.
Die dargelegte Losung erfüllt die an die Erfindung gestellten Aufgaben. Der erfindungsgemaße Überzug kann beliebig eingefarbt werden, er kann auf die Wandfläche von Hand (mit einem Werkzeug) und maschinell gleichermaßen aufgetragen werden, und er enthalt als Bindemittel lediglich Klebstoffe, die für den lebenden Organismus unschädlich sind.The solution set out fulfills the objects of the invention. The coating according to the invention can be colored as desired, it can be applied to the wall surface by hand (with a tool) and mechanically be applied, and it contains as a binder only adhesives that are harmless to the living organism.
Das Grundmaterial des Überzuges sind die Abfalle der lederverarbeitenden Industrie, Stucke unterschiedlicher Größe und Form aus gegerbtem Leder, Rohleder, Leder mit Fell, fallweise Füllstoff, zum Beispiel Kunstleder, Faserstoffe natürlichen und kunstlichen Ursprungs. Diese Stoffe sind durch eine gute Warme- und Schallisolierfahigkeit gekennzeichnetThe basic material of the cover is the waste of the leather processing industry, pieces of different sizes and shapes made from tanned leather, raw leather, leather with fur, occasionally filler, for example synthetic leather, fiber materials of natural and artificial origin. These fabrics are characterized by good heat and sound insulation properties
Der als Grundstoff des Uberzugsmaterials dienende Lederabfall wird - abhangend von der gewünschten Dicke des Überzuges und der Art des Leders - zu Kornern beziehungsweise Fasern vermählen Bestimmte hartgegerbte Ledersorten ergeben ein korniges Mahlgut, wahrend die weicheren Ledersorten abhangend von ihrer Elementarfaserstruktur beim Mahlen flockig werden Ist das Ledermahlgut körnig, so wird die Dicke des Überzuges durch die größte Ausdehnung der Korner bestimmt, die in der Praxis 0,5-4 mm betragt Weiches Leder wird für dickere Überzuge auf eine Faserlange von 1-15 mm, für dünnere Überzüge auf eine kürzere Faserlange gemahlenDepending on the desired thickness of the cover and the type of leather, the leather waste used as the base material of the cover material becomes grain or fibers. Certain hard-tanned leather types result in a granular regrind, while the softer leather types become flaky depending on their elementary fiber structure when grinding granular, the thickness of the coating is determined by the greatest expansion of the grains, which in practice is 0.5-4 mm. Soft leather is ground to a fiber length of 1-15 mm for thicker coatings, to a shorter fiber length for thinner coatings
Der aus den Betrieben der gegerbtes Leder verarbeitenden Industrie, zum Beispiel aus den Schuhfabriken, stammende Lederabfall kann in der Praxis nicht in hartes und weiches Leder sortiert werden. Bei der Schuhherstellung fallt ein gemischter Abfall an, der unter anderem aus Oberleder, Unterfütter und Sohlenleder besteht.In practice, the leather waste from the tanned leather processing industry, for example from the shoe factories, cannot be sorted into hard and soft leather. A mixed waste arises in the manufacture of shoes, which consists, among other things, of upper leather, lining and sole leather.
In diesen Fallen besteht das Ledermahlgut aus einem Gemisch korniger und flockiger Teilchen. Bei der Bestimmung der Dicke des Überzuges müssen daher beide Maße berücksichtigt werden. Der Lederabfall wird in der ersten Stufe zu Stücken von 1-150 mm2 zerkleinert, dann werden 70-95 % des Ausgangsmaterials, abhangend von der gewünschten Dicke des Überzuges, zu Kornern von 0,5-4 mm Größe und/oder einem 1-15 mm lange Elementarfasern enthaltenden flockigen Material vermählen. Für dünne Überzuge ist die untere Grenze, für mehrere mm dicke Überzuge die obere Grenze der angegebenen Bereiche anzuwenden, wobei die in Masse% angegebene Menge dem linearen Maß der Mahlgutteilchen umgekehrt proportional ist. Zur Herstellung des erfindungsgemaßen Überzuges ohne Füllstoffe werden 80-98 Masse% Ledermahlgut verwendet 5In these cases, the leather grist consists of a mixture of granular and flaky particles. Both dimensions must therefore be taken into account when determining the thickness of the coating. The leather waste is crushed in the first stage to pieces of 1-150 mm 2 , then 70-95% of the starting material, depending on the desired thickness of the coating, to grains of 0.5-4 mm in size and / or a 1- Mill 15 mm long flaky material containing elementary fibers. The lower limit is to be used for thin coatings, the upper limit for the ranges specified for coatings with a thickness of several mm, the quantity stated in mass% being inversely proportional to the linear dimension of the regrind particles. To produce the cover according to the invention without fillers, 80-98% by weight of leather pulp are used 5
Um das gemahlene Leder an die zu überziehende Flache (zum Beispiel an Wände, Beton oder Holzplatten) ankleben zu können, enthält das Uberzugsmaterial 2-20 Masse% Klebstoff Als Klebstoff können für den menschlichen und tierischen Organismus unschädliche Eiweiße, Starke, Dextrin und losliche Silikate verwendet werden. Bevorzugt wird Tapetenkleber vom Typ der Carboxymethylcellulose (CMC) verwendet. Der in den Ausführungsbeispielen verwendete Kleber ist ein Produkt mit dem Handelsnamen MAVIBOND EXTRA (Hersteller Zoltek Rt , Nyergesύjfalu, HU).In order to be able to glue the ground leather to the surface to be covered (e.g. on walls, concrete or wooden panels), the covering material contains 2-20% by mass of adhesive. As an adhesive, proteins, starch, dextrin and soluble silicates that are harmless to the human and animal organism can be used be used. Wallpaper adhesive of the carboxymethyl cellulose (CMC) type is preferably used. The adhesive used in the exemplary embodiments is a product with the trade name MAVIBOND EXTRA (manufacturer Zoltek Rt, Nyergesύjfalu, HU).
Der Überzug kann durch auf die Menge des gemahlenen Leders bezogen höchstens 15 Masse% Farbstoff eingefarbt werden Die Grundfarbe des Überzuges wird durch die Farbzusammensetzung der sortierten farbigen Lederreste bestimmtThe cover can be dyed by a maximum of 15% by mass of dye based on the amount of the ground leather. The basic color of the cover is determined by the color composition of the sorted colored leather residues
Um das Uberzugsmaterial maschinell oder von Hand auftragen zu können, wird es am Ort der Verwendung in einer entsprechenden Menge Wasser - abhangend von der Temperatur des Wassers - 10-60 Minuten lang eingeweicht Wahrend dieses Anteigeprozesses wird ein Teil der Farbstoffe des gemahlenen Leders, insbesondere des flockigen Ledermaterials, herausgelost, deshalb ist, wenn ein hellerer Farbton gewünscht wird, ein Zusatz von Farbstoffen nicht erforderlich. Für mittlere oder dunklere Färb Schattierungen ist der Zusatz von Farbstoff jedoch unverzichtbarIn order to be able to apply the covering material by machine or by hand, it is soaked in the appropriate amount of water at the place of use, depending on the temperature of the water, for 10-60 minutes. During this pasting process, part of the dyes of the ground leather, in particular the fuzzy leather material, drawn out, so if a lighter shade is desired, it is not necessary to add dyes. For medium or darker color shades, however, the addition of dye is essential
Nach dem Anteigen wird das Uberzugsmaterial mit einer entsprechenden Menge Wasser vermischt auf die zu behandelnde Wand aufgetragen. Nach dem Verdunsten des Wassers und dem Abbinden des Klebstoffes wird der Überzug gewünschter Dicke und Farbe fest.After the pasting, the coating material is mixed with an appropriate amount of water and applied to the wall to be treated. After the water has evaporated and the adhesive has set, the coating of the desired thickness and color becomes firm.
Die Erfindung wird an Hand der folgenden Beispiele naher erläutertThe invention is illustrated by the following examples
Beispiel 1example 1
Das zur Herstellung des erfindungsgemäßen Überzuges verwendete Uberzugsmaterial enthält folgende Bestandteile: 55 Masse% Ledermahlgut (das zu einem Masseteil aus pulverfbrmigem Mahlgut und zu 2 Masseteilen aus höchstens 5 mm langen Elementarfasern besteht), 20 Masse% Textilmahlgut aus höchstens 5 mm langen Fasern, 9,99 Masse% Papiermahlgut, 0,01 Masse% Glimmer zum Erzielen einer dekorativen Wirkung und 15 Masse% pulverfbrmigen CMC-Tapetenkleber Die auf 1000 g Masse des obigen Überzugsmaterials gerechneten 150 g CMC- Tapetenkleber werden in 1000 g handwarmem Wasser aufgelost und klumpenfrei verrührt. Unter ständigem Rühren werden die auf 1000 g Uberzugsmaterial berechneten übrigen Bestandteile zugegeben, dann werden dem erhaltenen Gemisch weitere 4000 g handwarmes Wasser zugesetzt. Die auf diese Weise erhaltene viskose Mischung wird auf die in üblicher Weise vorbereitete, geglättete und mit Dispersionswandfarbe angestrichene Wandfläche aufgetragen und geglättet. Man läßt die Masse eine Stunde lang antrocknen und glättet sie dann mit dem Streicheisen. Nach 48stündigem Trocknen ist der 3-4 mm dicke, sehr gut wärme- und schallisolierende und auch schallschluckende Überzug fertig. Die auf diese Weise behandelte, sehr dekorative Wandfläche wirkt verglichen mit geglätteten Wandflächen rauher.The covering material used to produce the cover according to the invention contains the following constituents: 55% by weight of ground leather (which consists in part of a mass of powdery ground material and 2 parts by mass of at most 5 mm long elementary fibers), 20% by mass of textile ground from at most 5 mm long fibers 99% by weight of ground paper, 0.01% by weight of mica to achieve a decorative effect and 15% by weight of powdery CMC wallpaper glue. The 150 g CMC wallpaper glue, calculated on 1000 g mass of the above coating material, is dissolved in 1000 g lukewarm water and lump-free stirred. The remaining constituents, calculated on 1000 g of coating material, are added with constant stirring, then a further 4000 g of lukewarm water are added to the mixture obtained. The viscous mixture obtained in this way is applied and smoothed to the wall surface prepared in the usual way, smoothed and coated with dispersion wall paint. Allow the mass to dry for an hour and then smooth it out with a stick. After drying for 48 hours, the 3-4 mm thick, very good heat and sound insulating and also sound absorbing cover is ready. The very decorative wall surface treated in this way appears rougher compared to smoothed wall surfaces.
Beispiel 2Example 2
Von dem Uberzugsmaterial der im Beispiel 1 angegebenen Zusammensetzung wird eine Charge von 30 kg bereitet mit dem Unterschied, daß der Glimmer dem Gemisch nicht zugesetzt wird. Die vorbereitete Überzugsmasse wird mit einer Mörtel sprühpistole auf die in üblicher Weise vorbereitete Ziegel wand eines gegen Wasser ungenügend isolierten Kellers in einem alten Gebäude in 3 Schichten auftorkretiert. Als erste Schicht werden 15 Masse% des vorbereiteten Gemisches in gleichmäßiger Dicke auf die Wand aufgebracht. Nachdem die Oberfläche der ersten Schicht getrocknet ist (24 Stunden), wird aus 75 Masse% des Gemisches die zweite Schicht ausgebildet. Nun wird der Ghmmer in die verbliebenen 10 Masse% des Gemisches eingerührt und mit dieser Masse die dritte Schicht aufgebracht. Nach 48stündigem Trocknen ist ein 3-5 mm dicker, sehr gut wärme- und schallisolierender und auch schallschluckender Überzug entstanden, dessen Oberfläche sehr dekorativ und etwas texturierter wirkt als die nach Beispiel 1 erhaltene. Es sei hervorgehoben, daß die früher mit üblichen Anstrichmitteln an den feuchten Wänden aufgebrachten Überzüge innerhalb kurzer Zeit zugrunde gingen, während der dem vorliegenden Beispiel gemäß angefertigte Überzug in drei Jahren keinerlei Veränderung zeigte.A batch of 30 kg is prepared from the coating material of the composition given in Example 1, with the difference that the mica is not added to the mixture. The prepared coating is sprayed with a mortar spray gun onto the brick wall, prepared in the usual way, of a basement insufficiently insulated against water in an old building in 3 layers. 15% by mass of the prepared mixture is applied to the wall in a uniform thickness as the first layer. After the surface of the first layer has dried (24 hours), the second layer is formed from 75% by mass of the mixture. Now the gum is stirred into the remaining 10 mass% of the mixture and the third layer is applied with this mass. After drying for 48 hours, a 3-5 mm thick, very good heat and sound insulating and also sound absorbing coating was created, the surface of which is very decorative and somewhat textured than that obtained according to Example 1. It should be emphasized that the coatings which had previously been applied to the damp walls using customary paints disappeared within a short time, while the coating produced according to the present example showed no change in three years.
Beispiel 3 1000 g Mahlgut aus gegerbtem Leder, welches Mahlgut zu 20 Masse% ausExample 3 1000 g of regrind from tanned leather, which regrind comprises 20% by mass
Körnern von höchstens 3 mm Teilchengröße und zu 80 Masse% aus Elementarfasern von durchschnittlich 5 mm Länge besteht, 250 g pulverförmiger CMC- Tapetenkleber und 3550 g Wasser werden miteinander vermischt und zum Quellen 30 Minuten lang stehen gelassen. Das Gemisch wird alle 3-5 Minuten gründlich aufgerührt und dann nach Zugabe von weiteren 1000 g Wasser homogenisiert. Das erhaltene homogene Gemisch wird auf eine 1 1 m2 große Wandfläche aufgetragen. Nach 20stündigem Trocknen erhält man einen 3 mm dicken Überzug.Grains with a maximum particle size of 3 mm and 80% by mass consisting of elementary fibers with an average length of 5 mm, 250 g powdered CMC Wallpaper glue and 3550 g of water are mixed together and left to swell for 30 minutes. The mixture is stirred thoroughly every 3-5 minutes and then homogenized after adding a further 1000 g of water. The homogeneous mixture obtained is applied to a 1 1 m 2 wall surface. After drying for 20 hours, a 3 mm thick coating is obtained.
Beispiel 4Example 4
1000 g Mahlgut aus gegerbtem Leder, welches Mahlgut zu 5 Masse% aus einer Fraktion von höchstens 0,5 mm Teilchengröße und zu 95 Masse% aus Elemen- tarfasern der durchschnittlichen Länge von 2 mm besteht, 100 g pulverförmiger CMC-Tapetenkleber und 18 000 g handwarmes Wasser werden miteinander vermischt und zum Quellen 20 Minuten lang stehen gelassen. Das Gemisch wird alle 5 Minuten kräftig aufgerührt. Das erhaltene homogene Gemisch wird mit der Sprühpistole auf eine 32 m2 große Wandfläche aufgetragen. Nach 18stündigem Trocknen erhält man einen 0,5 mm dicken Überzug.1000 g of regrind from tanned leather, which consists of 5% by mass of a fraction of at most 0.5 mm particle size and 95% by mass of elementary fibers with an average length of 2 mm, 100 g of powdered CMC wallpaper glue and 18,000 g lukewarm water is mixed together and left to swell for 20 minutes. The mixture is stirred vigorously every 5 minutes. The homogeneous mixture obtained is applied with the spray gun to a 32 m 2 wall surface. After drying for 18 hours, a 0.5 mm thick coating is obtained.
Beispiel 5Example 5
1000 g Mahlgut aus gegerbtem Leder, welches Mahlgut zu 30 Masse% aus einer Fraktion von höchstens 3,5 mm Teilchengröße und zu 70 Masse% aus Elemen- tarfasern einer durchschnittlichen Länge von 6 mm besteht, 400 g Stärke, 100 g Farbstoff und 8000 g handwarmes Wasser werden miteinander vermischt und zum Quellen 60 Minuten lang stehen gelassen. Das Gemisch wird alle 5 Minuten gründlich aufgerührt und dann nach Zugabe von weiteren 1000 g Wasser homogenisiert. Das erhaltene homogene Gemisch wird auf eine 10 m2 große Wandfläche auf- getragen. Nach 30stündigem Trocknen erhält man einen 3,5 mm dicken Überzug.1000 g of regrind from tanned leather, which consists of 30% by mass of a fraction of at most 3.5 mm particle size and 70% by mass of elementary fibers with an average length of 6 mm, 400 g of starch, 100 g of dye and 8000 g lukewarm water is mixed together and left to swell for 60 minutes. The mixture is stirred thoroughly every 5 minutes and then homogenized after adding a further 1000 g of water. The homogeneous mixture obtained is applied to a 10 m 2 wall surface. After drying for 30 hours, a 3.5 mm thick coating is obtained.
Beispiel 6Example 6
600 g Mahlgut aus gegerbtem Leder, welches Mahlgut zu 15 Masse% aus einer Fraktion von höchstens 3 mm Teilchengröße und zu 85 Masse% aus Elemen- tarfasern einer durchschnittlichen Länge von 4 mm besteht, 400 g Kunstledermahlgut von 0,5-2 mm Teilchengröße, 100 g pulverformiger CMC-Tapetenkleber, 1500 g Wasserglas und 7000 g Wasser werden miteinander vermischt und zum Quellen 30 Minuten lang stehen gelassen Das Gemisch wird alle 5 Minuten grundlich aufgerührt und dann nach Zugabe von weiteren 1000 g Wasser homogenisiert Das erhaltene homogene Gemisch wird auf eine 10 m2 große Wandflache aufgetragen Nach 24stundιgem Trocknen erhalt man einen 3 mm dicken Überzug, der infolge des Wasserglaszusatzes flammenfest ist600 g of regrind from tanned leather, which regrind consists of 15% by mass of a fraction of at most 3 mm particle size and 85% by mass of elementary fibers with an average length of 4 mm, 400 g of synthetic leather regrind of 0.5-2 mm particle size, 100 g of powdered CMC wallpaper adhesive, 1500 g of water glass and 7000 g of water are mixed together and used to Swelling allowed to stand for 30 minutes. The mixture is stirred thoroughly every 5 minutes and then homogenized after adding a further 1000 g of water. The homogeneous mixture obtained is applied to a wall surface of 10 m 2. After drying for 24 hours, a 3 mm thick coating is obtained, which as a result of the water glass additive is flame-proof
Auf Grund der mit dem erfindungsgemaßen Überzug erworbenen Erfahrungen laßt sich feststellenOn the basis of the experience gained with the coating according to the invention, it can be determined
- Die aus dem Stand der Technik bekannten Uberzugsmateriahen ähnlicher Zweckbestimmung können nicht oder nur schwer geglättet werden, wahrend bei der- The coating materials known from the prior art and having a similar purpose cannot be smoothed, or only with difficulty, while the
Herstellung des erfindungsgemaßen Überzuges das Uberzugsmaterial ohne besondere Kraftanstrengung gleichmaßig geglättet werden kann Zum Torkretieren der bekannten Überzuge ist ein hoher Luftdruck (1 1-12 bar) erforderlich, fallweise muß zur Sicherung der entsprechenden Haftung bei der Vorbereitung die Wand kunstlich aufgerauht werden. Zur Herstellung des erfindungsgemaßen Überzuges ist jedoch bereits ein Luftdruck von 3-3,5 bar zureichend. Überraschenderweise ist das Uberzugsmaterial sehr leicht glattbar, auch auf senkrechten staubigen Glasflachen Die außerordentlich gute Haftung des Uberzugsmaterials wird dadurch bewiesen, daß ein durch Torkretieren auf eine senkrecht angeordnete PVC-Fohe aufgebrachter, 6-8 mm dicker kreisförmiger Überzug von 30 cm Durchmesser nicht rutscht, auch dann nicht, wenn die Folie bewegt wirdProduction of the coating according to the invention, the coating material can be smoothed evenly without any particular effort. To lock the known coatings, a high air pressure (1-12 bar) is required, in some cases the wall must be artificially roughened to ensure the appropriate adhesion during preparation. However, an air pressure of 3-3.5 bar is sufficient to produce the coating according to the invention. Surprisingly, the covering material is very easy to smooth, even on vertical, dusty glass surfaces. The extraordinarily good adhesion of the covering material is demonstrated by the fact that a circular covering of 6-8 mm thick, 30 cm in diameter, applied by locking onto a vertically arranged PVC foam, does not slip. not even if the film is moved
- Wegen der verhältnismäßigen Harte des Grundmaterials des erfindungsgemäßen Überzuges kann beim Zerkleinern - im Gegensatz zu den Grundmaterialien der bekannten Überzüge - eine gleichmäßige Korngroße erzielt werden, was bei der Anwendung einen großen Vorteil bedeutet.- Because of the relative hardness of the base material of the coating according to the invention, a uniform grain size can be achieved during crushing - in contrast to the base materials of the known coatings - which means a great advantage in use.
- Der erfindungsgemaße Überzug ist nur gegen sehr grobe Verunreinigungen der Oberfläche (zum Beispiel Rost) empfindlich, bei Wandflachen durchschnittlicher Qualität ist es ausreichend, die Oberfläche vorher mit einer Dispersionswandfarbe zu streichen. Der erfindungsgemaße Überzug kann auch auf verputzten Wanden oder rohen Betonoberflachen unmittelbar ausgebildet werden Der Überzug ist wegen seiner porösen Struktur luftdurchlässig, dadurch ist die Lüftung der überzogenen Fläche gewährleistet Die außerordentlich gute Haftung des erfindungsgemäßen Überzuges ermöglicht es, Überzüge aus mehreren Schichten herzustellen. Da der Überzug bereits in einer Dicke von 3-4 mm ausgezeichnet gegen Wärme und Schall isoliert (nach eigenen Messungen etwa so gut wie eine 15 cm dicke Ziegelwand), kann durch Anwendung eines mehrschichtigen Überzuges eine außerordentlich gute Warme- und Schallisolierung erzielt werden. - The coating according to the invention is only sensitive to very coarse contaminations of the surface (for example rust), for wall surfaces of average quality it is sufficient to paint the surface beforehand with a dispersion wall paint. The coating according to the invention can also be formed directly on plastered walls or raw concrete surfaces. The coating is permeable to air because of its porous structure, which ensures ventilation of the coated surface The extraordinarily good adhesion of the coating according to the invention makes it possible to produce coatings from several layers. Since the covering is already 3-4 mm thick and is extremely well insulated against heat and sound (according to our own measurements, it is about 15 cm thick brick wall), an extraordinarily good heat and sound insulation can be achieved by using a multi-layer covering.

Claims

10Patentansprüche 10 patent claims
1. Mit Wasser verdünnt aufbringbarer Überzug hoher Warme- und Schalliso- lierfähigkeit aus Ledermaterialien, bestehend aus1. A coating that is diluted with water and has a high heat and sound insulation capacity made from leather materials consisting of
80-98 Masse% gemahlenem Leder, das in einer Menge von 70-95 Masse% Teilchen der Größe von 0,5-4 mm und/oder flockig gemahlene Elementarfasern von 1-15 mm Länge enthält, und 2-20 Masse% Klebstoff, oder einem Gemisch von 50-94 Masse% gemahlenem Leder und 1-48 Masse% Füllstoffen, ferner 2-20 Masse% Klebstoff und im Fall farbiger Überzuge auf die Masse des gemahlenen Leders beziehungsweise auf die Gesamtmasse von gemahlenem Leder und Füllstoffen gerechnet höchstens 15 Masse% Farbstoff.80-98% by mass of ground leather, which in an amount of 70-95% by mass contains particles of the size of 0.5-4 mm and / or flaky ground elementary fibers of 1-15 mm in length, and 2-20% by mass of adhesive, or a mixture of 50-94% by mass of ground leather and 1-48% by mass of fillers, further 2-20% by mass of glue and, in the case of colored coatings, based on the mass of ground leather or on the total mass of ground leather and fillers, a maximum of 15% % Dye.
2. Überzug nach Anspruch 1, zusätzlich enthaltend Feuerfestigket gewahrleistende lösliche Silikate in einer Menge von 1-10 Masse%. 2. A coating according to claim 1, additionally containing refractory soluble silicates in an amount of 1-10 mass%.
PCT/HU1999/000019 1998-03-09 1999-03-08 Coating on a leather basis having high thermal and sound insulating properties WO1999046457A1 (en)

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DE19980377T DE19980377B4 (en) 1998-03-09 1999-03-08 Covering high heat and sound insulation based on leather

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HU9800505A HUP9800505A2 (en) 1998-03-09 1998-03-09 Heat-insulating coat from crashed skin product

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WO2006136550A1 (en) * 2005-06-20 2006-12-28 Ledertech Gmbh Sound-insulating material
DE102006001094A1 (en) * 2006-01-09 2007-07-12 TESCH, Günter Abriebfenster, waterproof floor and wall covering
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DE102006001098A1 (en) * 2006-01-09 2007-07-12 TESCH, Günter Web-shaped material with a cover layer and with a carrier layer

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DE19980377B4 (en) 2004-12-09
DE19980377D2 (en) 2001-11-08
HU9800505D0 (en) 1998-04-28
AU2949799A (en) 1999-09-27

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