WO2006136550A1 - Materiau d'isolation phonique - Google Patents

Materiau d'isolation phonique Download PDF

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Publication number
WO2006136550A1
WO2006136550A1 PCT/EP2006/063345 EP2006063345W WO2006136550A1 WO 2006136550 A1 WO2006136550 A1 WO 2006136550A1 EP 2006063345 W EP2006063345 W EP 2006063345W WO 2006136550 A1 WO2006136550 A1 WO 2006136550A1
Authority
WO
WIPO (PCT)
Prior art keywords
leather
material according
fiber material
leather fiber
thermoplastic
Prior art date
Application number
PCT/EP2006/063345
Other languages
German (de)
English (en)
Inventor
Albrecht Reiter
Ewald Wilka
Original Assignee
Ledertech Gmbh
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 Ledertech Gmbh filed Critical Ledertech Gmbh
Publication of WO2006136550A1 publication Critical patent/WO2006136550A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • E04B1/88—Insulating elements for both heat and sound
    • E04B1/90—Insulating elements for both heat and sound slab-shaped
    • 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
    • B32B2250/20—All layers being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • B32B2262/08—Animal fibres, e.g. hair, wool, silk
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • 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
    • B32B2419/00—Buildings or parts thereof
    • 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
    • E04B2001/742—Use of special materials; Materials having special structures or shape
    • E04B2001/746—Recycled materials, e.g. made of used tires, bumpers or newspapers
    • 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
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered

Definitions

  • the present invention relates to a leather fiber material and its use as a sound and heat insulating carrier material in the interior of buildings.
  • components for insulation which consist of a wide variety of organic or inorganic substances and are bound together in various ways.
  • components for insulation consist of a wide variety of organic or inorganic substances and are bound together in various ways.
  • cement or gypsum-bonded insulating components of wood fibers, synthetic fibers, mineral wool, cork or textile composites.
  • foam plastics and mineral foams are in use.
  • These components can be present, for example, as mats, plates or bulk materials and are installed in many ways already in the construction of the building with.
  • Heat loss and noise pollution can also be achieved through measures during interior work.
  • the possibilities are clearly limited in comparison to the measures discussed above, since the rooms to be insulated are already in their basic dimensions are present and should not be limited by the additional insulation as possible in their volume or the potential uses.
  • insulating material for interior work should therefore have the lowest possible intrinsic volume (in order not to unnecessarily reduce the space) and, on the other hand, should meet high stability requirements (in order to bear the burdens of use by the residents).
  • a material that is used to insulate floors eg, to improve the impact sound insulation
  • LEFA leather fiber materials
  • LEFA leather fiber materials
  • leather fibers and binders leather fibers and binders.
  • leather pulps are prepared by mixing an aqueous leather fiber slurry with binders diluted in water, fixing the binder to the fibers by adding precipitants, and then Similar to papermaking - the dispersion is dewatered on suitable sieves or by means of suitable sieving machines (see, for example, Ullmanns Encyklopadie der ischen Chemie, 4th Edition, Volume 16, page 174.) Since the end of the thirties, LEFA sheets have been used in the For example, they have been used as substitute material for (more expensive) leather, for example in the bag making and furniture industry.
  • Ma materials that are required for use as a sound-insulating material in interior design can be made of leather pulp.
  • the present invention therefore represents a further development of these materials and opens up a hitherto unknown field of application.
  • this opens up a field of use for such leather pulp, which (for example, due to manufacturing tolerances) do not meet the relatively high demands on the mechanical strength under deformation, which are made of leather pulp for use in footwear or bag making industry.
  • Such leather fibers can still be used for the production of materials according to the invention.
  • the object of the present invention is therefore to provide a modified leather fiber material which, on account of its properties, in particular its insulating effect for sound and heat, its mechanical stability and its low strength tolerance, for the production of insulating components, preferably panels for cladding walls, Ceilings and floors of interiors, is suitable.
  • the low starch tolerances allow in particular the use of the invention Materials in the manufacture of such components that are impact processed, such as floor laminate.
  • the present invention relates to a material for acoustic and thermal insulation of structures, which is characterized in that a layer of leather fiber material is coated on one side or on both sides with a layer of water-insoluble polymer material.
  • the layer of leather fiber material preferably has a thickness of 5 to 15 millimeters. Particularly preferred is a layer thickness of 7 to 15 millimeters, most preferably a layer thickness of 9 to 15 millimeters.
  • the central layer consists of leather fiber material, which has a specific gravity of> 1.00 g / cm 3 .
  • the leather fiber material has a specific gravity of> 1.05 g / cm 3 .
  • the specific gravity of commercially available leather fiber material - depending on the leather quality, fillers and binders used for the production - is well below 1.00 g / cm 3 .
  • leather fiber materials with a specific weight of about 1.00 g / cm 3 are also available.
  • the specified specific gravity values can be produced according to the state of the art in the context of the production processes of leather pulp materials which are described, for example, in international patent applications WO 98/50617, WO 00/67937 or WO 2005/017004.
  • the central layer may consist of a single layer of the leather fiber material. However, it is also possible for two or more layers of the leather fiber material to be joined together in order to achieve a higher layer thickness and thus an increased insulation effect.
  • the compound of the layers is preferably done by gluing.
  • suitable Adhesives for bonding the individual layers are, for example, neoprene adhesives or PVAC adhesives.
  • the water-insoluble polymer material is preferably melamine resin or acrylic resin. However, it is generally usable any water-insoluble polymer, which can be used for coating furniture and floor elements.
  • the layer thickness of the coatings of water-insoluble polymer is preferably less than 1 millimeter, more preferably less than 0.7 millimeters, most preferably less than 0.5 millimeters.
  • the leather fiber material that can be used as the starting material for the invention, that is, any leather fiber material known in the art is basically suitable.
  • thermoplastic leather fiber materials as described, for example, in International Patent Applications WO 98/50617, WO 00/67937 or WO 2005/017004.
  • the insulating material of the present invention obtained therefrom retains the thermoplastic properties of the starting material. It is thus possible to produce moldings from the insulating material by thermoplastic processing methods known from the prior art and to overcome problems such as those encountered in interior finishing by non-normalized spatial configurations. Depending on the nature of the coating material, this deformation may be performed prior to the coating process of the leather fiber material (in non-thermoplastic coating materials such as melamine resin or acrylic resin); when using thermoplastic coating materials, there is no restriction here.
  • the leather fiber material is produced from raw materials that meet the requirements for environmental and health compatibility. So should for example, the leather fiber material may not have been obtained from chrome-tanned leather, since chromium compounds are harmful to human health. Furthermore, for example, in the production of the starting material, a low-emission fatliquoring agent should be used so as not to pollute the indoor climate of the rooms insulated with the material according to the invention. The same applies mutatis mutandis to all other auxiliaries that are used in the production of leather fiber materials, and can not be completely removed from the material. It is preferred that the leather fiber material meet the increased requirements of the German SG certificate.
  • the insulation material is provided with a flame-retardant finish.
  • a flame-retardant finish can be done, for example, by subjecting the surfaces of the leather fiber material used as starting material to a suitable treatment, for example with the commercially available product Flacavon® B 45 from Schill & Seilacher.
  • a suitable flame retardant additive can be co-processed in the production of the leather pulp which serves as starting material. If the starting materials are prepared by the processes described in international patent applications WO 98/50617, WO 00/67937 or WO 2005/017004 (coagulation), for example, the aqueous suspension of the leather fibers can be the product Flacavon® H14-67 from Schill & Seilacher.
  • thermoplastic or non-thermoplastic leather pulps are thermoplastic or non-thermoplastic leather pulps containing
  • a thermoplastic binder consisting of polymers selected from the group consisting of polyurethanes, polyolefins, polyvinyl esters, polyethers, polys
  • the leather fiber material is a thermoplastic leather fiber material.
  • an additional fiber material to the leather fibers in component A of the leather fiber material is any organic fiber material suitable that the leather fiber material of the
  • fibers such as asbestos, glass fibers or carbon fibers do not count as organic fiber material.
  • plastic fibers, vegetable fibers or animal fibers are used in the context of the present invention.
  • Suitable natural fibers include, for example, animal fibers such as wool, hair or silk.
  • plant fibers for example cotton, kapok, flax, hemp, jute, kenaf, ramie, broom, manila, coconut or sisal.
  • Suitable plastic fibers of natural polymers are cupro, viscose, modal, acetate, triacetate and protein fibers or alginate fibers or mixtures of two or more of said fibers.
  • Suitable fibers of synthetic polymers are, for example, polyacrylic, polymethacrylic, polyvinyl chloride, fluorine-containing polymer fibers, polyethylene, polypropylene, vinyl acetate, polyacrylonitrile, polyamide, polyester or polyurethane fibers.
  • organic fiber material in component A exclusively leather fibers.
  • leather residues are comminuted and defibered by a suitable method, so that the fibers obtained can subsequently be used in the process according to the invention for obtaining a composite material having leather-like properties.
  • the leather lasers can basically be won from any kind of leather scraps. It may be either chrome tanned, vegetable tanned or glutaraldehydgegerbte leather or their precursors such. Falzs Georgne or split leather act.
  • Leather types which can be used within the scope of the invention are, for example, upper leather, suede leather, crust leather, bottom leather, lining leather, plain leather and technical leather.
  • the organic fiber material is comminuted to an elongated length of about 0.1 to 20 mm.
  • a length of about 0.5 to 20 mm, preferably about 0.5 to about 10 mm and more preferably about 0.5 to about 8 mm fiber length lends itself.
  • the fiber length is measured in the stretched state of the fiber, depending on the starting material and the type of comminution, it can of course occur that the fiber assumes an irregularly curved shape without any external influence.
  • Component A is contained in the suitable leather pulp in an amount of at least about 15% by weight as the base material. As the proportion of A increases, the material increasingly assumes the properties of the organic fiber material. Depending on the desired effect
  • the proportion of the organic fiber material may also be greater, for example about 30% by weight, 35% by weight, 40% by weight, 45% by weight, 50% by weight, 55% by weight or even greater than about 60 wt.%, with levels of, for example, 65 wt.% or even 70 wt.% and more
  • the proportion of fiber materials is from about 30 to about 90 wt .-%, most preferably from about 40 to about 85 wt .-%.
  • thermoplastic leather pulp as component B contains a mixture of natural latex and a thermoplastic binder, consisting of one or more of the abovementioned polymers.
  • thermoplastic leather pulp contains as component B a thermoplastic binder consisting of one or more of the abovementioned polymers, without the addition of natural latex.
  • thermoplastic binder in the context of the present text polymeric compounds which serve as a matrix in the leather pulp.
  • polymeric materials having a molecular weight of more than about 1,000 are usually used, but preferably, the molecular weight is higher.
  • the molecular weight (M n ) of the polymers present in the binder is preferably between about 10,000 and about 1,000,000, more preferably between about 20,000 and about 300,000, and most preferably between about 50,000 and about 150,000.
  • thermoplastic binder means the entirety of the thermoplastic polymer matrix material, regardless of how many polymeric components it has and how many different formulations containing the thermoplastic binder constituting the polymer (s). , were needed for its production.
  • the molecular weight distribution of the polymers need not be monomodal.
  • the thermoplastic binder may also have a bi- or higher modal distribution.
  • thermoplastic binders are used for the preparation of the leather fiber materials for the component B, which contain one or more different polymers.
  • “different polymers” are understood as meaning polymer types whose chemical composition, ie, the type of monomers involved in the synthesis of the polymers or, if two or more monomers are involved in the synthesis of the polymer, in the ratio of Monomers with each other, or in both, different. It is irrelevant whether the individual polymer has thermoplastic properties, as long as the mixture of different polymers has a corresponding thermoplasticity.
  • polyurethanes are to be understood as meaning all polymers which have at least two urethane groups in the polymer backbone.
  • Suitable polyurethanes in the context of the present invention are all thermoplastic polyurethanes known to the person skilled in the art of polyurethane chemistry, in particular those polyurethanes which are usually used in the production of thermoplastic molded articles, in particular films, or for the thermoplastic coating of surfaces.
  • polyester polyurethanes or polyether polyurethanes are by reacting dicarboxylic acids with appropriate polyfunctional alcohols, in particular difunctional alcohols, for example difunctional polyethers such as polyethylene oxide, polyether or polyester polyols and subsequent reaction of the corresponding polyether or polyester polyols with di- or polyfunctional isocyanates are available.
  • Polyolefins suitable in the context of the present invention are obtainable, for example, by free-radical or coordinative polymerization of ⁇ -olefins, in particular of ethylene or propylene.
  • Suitable polyvinyl esters in the context of the present invention are in particular the polymers of vinyl acetate.
  • Polyethers suitable in the context of the present invention are, for example, polyethylene oxide, polypropylene oxide, polybutylene oxide or polytetrahydrofuran, in particular having a molecular weight of more than about 5,000.
  • polystyrenes for example, the polymers of styrene or ⁇ -methylstyrene are suitable.
  • thermoplastic binder of the thermoplastic composite material are also suitable as polymers for use in the thermoplastic binder of the thermoplastic composite material according to the invention.
  • styrene-olefin copolymers obtainable by copolymerization of styrene with monoolefins or diolefins, in particular butadiene.
  • Suitable polyvinyl esters are the polymers of esters of unsaturated alcohols with corresponding carboxylic acids.
  • Suitable unsaturated alcohols are, for example, the unsaturated aliphatic alcohols having 2 to about 22 C atoms, in particular having 2 to about 8 C atoms.
  • Suitable carboxylic acids are the linear and branched alkanoic acids having 2 to about 22 carbon atoms, in particular having 2 to about 8 carbon atoms.
  • polyacrylate or “polyacrylates” as used in the present text refer in the following to polymers or copolymers of acrylic acid and / or their derivatives as well as to polymers or copolymers of methacrylic acid and / or their derivatives.
  • the polyacrylates used may be homopolymers or copolymers which, in addition to the acrylates (acrylates), also contain styrene, acrylonitrile, vinyl acetate, vinyl propionate, vinyl chloride, vinylidene chloride and / or butadiene.
  • Particularly suitable monomers in the preparation of the polyacrylates are methacrylate, ethyl acrylate, n-butyl acrylate, isobutyl acrylate, tert-butyl acrylate, hexyl acrylate, 2-ethylhexyl acrylate or lauryl acrylate.
  • acrylates and / or methacrylates having one or more functional groups may be present during the polymerization.
  • these are maleic acid, itaconic acid, butanediol diacrylate, hexanediol diacrylate, triethylene glycol diacrylate,
  • Propylene glycol methacrylate, butanediol monoacrylate, ethyl diglycol acrylate and sulfonic acid group-carrying monomer for example, 2-acrylamido-2-methylpropanesulfonic acid.
  • the thermoplastic binder content contains at least one polymer selected from the group consisting of styrene-olefin copolymers, vinyl acetate polymers or ethylene-vinyl acetate copolymers, or mixtures or copolymers of two or more of said polymers.
  • the total amount of component B on the leather fiber material is preferably at least about 10% by weight. It may be advantageous, for example, for a controlled property change, if the leather fiber material contains at least about 15% by weight or 5 at least about 20% by weight or more of component B, for example at least about 40 to at least about 60% by weight. In a preferred embodiment of the invention, the proportion of component B in the total leather fiber material is about 10 to about 50 wt .-%.
  • the leather fiber material may also comprise further components, preferably in a proportion of up to about 20% by weight.
  • these include, for example, inorganic salts, preservatives, dyes, natural and / or synthetic fats, paraffins, natural and / or synthetic oils, silicone oils and ionic
  • nonionic surfactants which are known as auxiliaries in the production and processing of leather fiber materials.
  • the inorganic salts used are preferably salts of aluminum or copper, the aluminum sulfate being particularly preferred. > 0
  • preservatives particularly preferred are those preservatives which have a fungicidal active spectrum.
  • preservative Preventol® Al ID marketed by BAYER, Leverkusen, is well suited.
  • component B contains up to 70% by weight (based on the total weight of component B) of polymer selected from the group consisting of styrene-olefin copolymers, vinyl acetate polymers or ethylene-vinyl acetate copolymers, or mixtures or copolymers of two or more of said polymers.
  • the invention further relates to plate-shaped components for the insulation of walls, ceilings and floors, which contain said material or are made therefrom.
  • one of the polymer coatings may be formed as a decorative layer that mimics a wood pattern, for example.
  • the material according to the invention is suitable, for example, as a sound and heat-insulating replacement for commercially available floor laminate or commercially available wall coverings with wood look.
  • the invention further relates to an insulating material and a method for producing an insulating material as described above, characterized in that it has a low starch tolerance (tolerance in the thickness of the total material).
  • a low starch tolerance tolerance in the thickness of the total material.
  • Such requirements for the maximum starch tolerance exist depending on the intended use.
  • Density tolerances of +/- 0.01 mm are common for use as floor elements.
  • the preferred starch tolerance of the material according to the invention is less than +/- 0.05 mm.
  • Particularly preferred are materials having a starch tolerance of less than +/- 0.03 mm, even more preferably those having a starch tolerance of +/- 0.01 mm.
  • a suitable leather fiber material is supported by area pressure - expediently in a flat press known in the prior art - to the required strength compacted predetermined starch tolerance and then coated one or both sides of this Lederiasermaterials with a water-insoluble polymer.
  • a suitable leather fiber material is coated on one or both sides with a water-insoluble polymer and then brought by surface pressure - useful in a known in the art flat press - to required strength with predetermined strength tolerance.
  • a suitable leather fiber material is coated on one or both sides with a water-insoluble polymer and brought to required strength with predetermined strength tolerance during the lamination process by surface pressure - expedient in a known in the art flat press.
  • the method additionally comprises the step of adhering two or more layers of the leather fiber material before, during or after the densification step.
  • an increase in the specific gravity of the leather fiber material can optionally be achieved by the application of the areal pressure.
  • leather fiber materials, resulting from their manufacturing process having a density of less than 1.00 g / cm 3, the preferred Ausilickungsform of the present invention are also used in accordance with.
  • a leather pulp with a thickness of 3.5 +/- 0.1 millimeters and a specific weight of 1.02 g / cm 3 is produced according to the state of the art, for example according to the instructions given in international patent application WO 98/50617. Subsequently, two layers of this material are precisely placed on each other and glued using a neoprene adhesive and in a flat press at the same time After curing of the adhesive, the material obtained is provided on both sides with a layer of melamine resin by methods known in the art. The finished material accumulates in panels and can be easily cut and processed, and is suitable for use as a floor laminate as well as wall and ceiling panels or sidewalls with good sound and heat insulation.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

L'invention concerne un matériau de fibres de cuivre et son utilisation en tant que matériau support d'isolation phonique et thermique dans l'aménagement intérieur de bâtiments.
PCT/EP2006/063345 2005-06-20 2006-06-20 Materiau d'isolation phonique WO2006136550A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510028465 DE102005028465A1 (de) 2005-06-20 2005-06-20 Schallisolierendes Material
DE102005028465.5 2005-06-20

Publications (1)

Publication Number Publication Date
WO2006136550A1 true WO2006136550A1 (fr) 2006-12-28

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DE (1) DE102005028465A1 (fr)
WO (1) WO2006136550A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020212062A1 (fr) * 2019-04-15 2020-10-22 S.M.B.-Equity GmbH Materiau composite thermoplastique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008017960A1 (de) * 2008-04-08 2009-10-15 Bader Gmbh & Co. Kg Flachmaterialbahn mit einer Faserschicht aus Lederfaser und Bindemittel sowie Verfahren zu deren Herstellung
DE102009047442A1 (de) 2008-12-08 2010-07-08 Basf Se Verbesserte Schaumstoffeigenschaften durch Verwendung nachwachsender Naturfasern

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809597A (en) * 1971-07-19 1974-05-07 Ucote Corp Article for the finishing of leather
US4061822A (en) * 1971-03-12 1977-12-06 Rohm And Haas Company Crushed foam coated leather and leather-like materials
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