EP3966403A1 - Entkopplungsbahn - Google Patents
EntkopplungsbahnInfo
- Publication number
- EP3966403A1 EP3966403A1 EP20733955.7A EP20733955A EP3966403A1 EP 3966403 A1 EP3966403 A1 EP 3966403A1 EP 20733955 A EP20733955 A EP 20733955A EP 3966403 A1 EP3966403 A1 EP 3966403A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vinyl acetate
- weight
- layer
- decoupling
- ethylene
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/185—Underlayers in the form of studded or ribbed plates
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/182—Underlayers coated with adhesive or mortar to receive the flooring
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
- E04F15/203—Separately-laid layers for sound insulation
Definitions
- the invention relates to a decoupling web with a carrier web and a plurality of knobs protruding from the carrier web plane, the carrier web having a, preferably thermoplastic, plastic as material.
- the decoupling membrane is provided in particular for use for a surface covering structure that can be covered with covering elements, preferably for tile coverings.
- the term “decoupling” is understood to mean the reduction of shear stresses or stress peaks between two layers arranged in a solid bond. Effective decoupling thus prevents shear stresses or stress peaks in one of the layers from being transferred to the other layer of the composite structure and from causing damage there.
- Decoupling sheets of the aforementioned type are used, for example, in construction when laying floor covering elements such as ceramic tiles, in particular for decoupling, sealing and / or for vapor pressure equalization.
- the decoupling strips are laid, in particular glued, on a sub-floor and form the support surface for the floor covering elements.
- Tiles are laid, especially on young screed, using the thin-bed method. If no decoupling membrane is laid between the tiled floor and the new screed, if the screed shrinks, the tiles, in particular due to their low expansion coefficient, cannot follow the movement of the screed, so that shear stresses arise that ultimately lead to detachment or even tearing the tiles can lead.
- Decoupling membranes are also required when laying coverings on particularly critical substrates, such as old wood floors.
- decoupling sheet are made of film-like plastic, that is, a flexible plastic layer that deforms under the action of external forces.
- the material is usually selected so that it is low in emissions, especially with regard to pollutants.
- a fleece is generally provided which is firmly connected to the carrier sheet can.
- the fleece can be arranged on a substrate and glued to the substrate.
- An adhesive layer can therefore be provided between the underside of the decoupling membrane facing away from the covering elements and the substrate.
- tile adhesive also called adhesive mortar or bonding layer
- adhesive mortar or bonding layer is then applied to the support plane of the decoupling membrane.
- tile adhesives are usually combed with a notched trowel or a toothed smoothing trowel and a different tile adhesive is used depending on the area of application and / or the substrate.
- a reaction resin adhesive, a cementitious thin-bed mortar, a casein tile adhesive or a dispersion adhesive is used as the tile adhesive.
- the individual flooring elements or the tiles are laid on the tile adhesive. During application, the tile adhesive penetrates into the depressions of the decoupling membrane and hardens.
- the connected floor covering elements are separated from the subsurface and mechanically decoupled.
- the arrangement of the knobs transversely to the longitudinal direction and in the longitudinal direction of the carrier plate results in channels which extend over the entire carrier plate. These channels work together with the knobs in such a way that they absorb and compensate for mechanical loads and, in particular, shear stresses. This stress on the floor covering elements can be generated due to the effects of temperature and moisture and / or weight loading.
- Adhesive tensile strength sometimes also referred to as tear strength, is understood to be a characteristic value which is used to evaluate the adhesion and / or adhesion of layers on surfaces, in particular of the tile adhesive on the decoupling membrane.
- the adhesive tensile strength can be determined using an adhesive tensile test.
- the aforementioned object is at least essentially achieved according to the invention in that the carrier sheet has and / or consists of a copolymer containing ethylene and vinyl acetate as material.
- the copolymer comprising ethylene and vinyl acetate is very particularly preferably designed as a copolymer of ethylene and vinyl acetate, preferably ethylene-vinyl acetate (EVA, EVAC).
- EVA ethylene-vinyl acetate
- the carrier web can also only “partially” contain the copolymer comprising ethylene and vinyl acetate, preferably EVAC.
- the material of the carrier web can also have a further, preferably thermoplastic, plastic.
- thermoplastic, plastic materials can also be provided.
- the mechanical properties of the decoupling sheet can be significantly improved compared to the decoupling sheets known from the prior art by the copolymer comprising ethylene and vinyl acetate.
- a significantly better flattening preferably by up to 60%, can be achieved compared to decoupling tracks known from practice.
- the flaking is improved in particular for the fleece and / or for the tile adhesive.
- the decoupling track is not only much more flexible, but also shows better decoupling properties than the decoupling tracks known from practice.
- the packaging, in particular into rolls, of the decoupling sheet can be made simpler, which reduces the expenditure for storing the decoupling sheet.
- the improved adhesion of tile adhesive to the decoupling membrane can also improve the tensile strength of the entire decoupling membrane.
- ethylene vinyl acetate (EVA, also called EVAC) ultimately designates a group of copolymers that are formed by the polymerization of ethylene and vinyl acetate. Despite the strong branching of the chain molecules, the structure of ethylene vinyl acetate is only crystalline in a few places. With a corresponding vinyl acetate content, the ethylene-vinyl acetate can be partially crystalline and thermoplastic.
- a translucent design of the ethylene vinyl acetate is also known.
- the density and the other properties depend particularly on the vinyl acetate content (VAC).
- VAC vinyl acetate content
- a higher vinyl acetate content reduces the strength, stiffness and chemical resistance.
- the copolymer according to the invention comprising ethylene and vinyl acetate has a flexibility that is at least essentially similar to rubber and ultimately resembles, in particular in terms of its property profile, soft polyvinyl chloride. At the same time, however, tear and impact resistance as well as light transmission and especially gloss increase.
- the properties of the decoupling sheet with regard to watertightness, vapor pressure equalization and good drying continue to be ensured.
- the decoupling membrane according to the invention is waterproof, enables good vapor pressure equalization and also good drying.
- the vapor pressure equalization and the drying can also be improved in that the channels extending over the decoupling membrane and running between the adjacent knobs are connected to one another indirectly and / or directly for the entire dimpled membrane.
- the decoupling effect is advantageously designed in such a way that, on the one hand, no cracks occur in the surface of the covering facing away from the decoupling membrane and, on the other hand, that possible cracks in the subsurface, which occur in particular only after the decoupling membrane has been laid, do not appear in the tile adhesive layer and / or the Draw the covering elements.
- the decoupling sheet according to the invention enables a high winding ability, so that the decoupling sheet can easily be rolled up, preferably for transport.
- the decoupling sheet according to the invention can have high torsional rigidity or high torsional rigidity, so that the decoupling sheet cannot be kinked and / or twisted, in particular by 90 °.
- the decoupling sheet according to the invention in addition to its excellent decoupling properties, also has very good impact sound insulation. This effect is also the result of the inventive addition of the copolymer containing ethylene and vinyl acetate.
- the carrier web has at least one thermoplastic polymer and / or elastomer as a further material.
- Hard polyethylene (HDPE), polyethylene (PE) and / or polypropylene (PP) can in particular be provided as thermoplastic polymer and / or elastomer.
- the material of the carrier web can have a further thermoplastic material.
- the copolymer containing ethylene and vinyl acetate can be mixed with the further material.
- the further material has a mass fraction of the material of the carrier web of at least 20% by weight, preferably between 30% by weight to 99% by weight, more preferably between 40% by weight. % to 95% by weight, more preferably further between 50% by weight to 80% by weight.
- the addition of the copolymer containing ethylene and vinyl acetate to thermoplastic synthetic materials known per se in practice for the carrier web significantly increases the essential properties of the decoupling web, in particular the decoupling properties and the adhesive tensile strength, significantly, preferably up to 50%, can be improved.
- EVAC ethylene-vinyl acetate
- the properties, in particular the adhesive tensile strength and / or the decoupling properties, of the decoupling web can be adjusted accordingly. An individual adaptation to the respective customer requirements and / or the properties intended for the respective use can then be easily possible.
- the copolymer containing ethylene and vinyl acetate has a vinyl acetate content of at least 5%, preferably between 10% to 50%, more preferably between 12% to 40%, more preferably more between 16% to 30% and in particular at least substantially between 25% to 29%, in particular based on the copolymer comprising ethylene and vinyl acetate.
- the properties of the copolymer can be adjusted or varied accordingly, in particular as a function of the respective customer requirements, application specifications or the like. From a macroscopic point of view, the modulus of elasticity of the material, in particular of the copolymer containing ethylene and vinyl acetate, should decrease as the proportion of vinyl acetate (VAC) increases.
- VAC vinyl acetate
- the copolymer containing ethylene and vinyl acetate is largely amorphous, with a vinyl acetate of less than 30 to 40% by weight, on the other hand, the copolymer containing ethylene and vinyl acetate is partially crystalline and thermoplastic.
- the copolymer containing ethylene and vinyl acetate is thermoplastic, so that in particular the vinyl acetate content is below 40% by weight, based on the copolymer containing ethylene and vinyl acetate.
- the copolymer containing ethylene and vinyl acetate with a vinyl acetate content of 28% is not only inexpensive but also readily available, which significantly simplifies the production of the carrier web.
- the copolymer containing ethylene and vinyl acetate, in particular ethylene-vinyl acetate, with a vinyl acetate of about 28% is also referred to as "EVA28".
- the decoupling properties and / or the adhesion in particular the adhesive tensile strength
- can / can be significantly improved compared to the decoupling sheets known from the prior art through a multilayer structure of the carrier web.
- a multi-layer structure of the carrier web can have layers which differ from one another with regard to adhesion, adhesive tensile strength, elasticity and / or elongation at break.
- the carrier web preferably has a layer structure of at least two layers, at least two layers (A, B) having a material composition that differs from one another.
- the differing material composition has an effect in particular with regard to differences in flexibility, elasticity, adhesion and / or adhesive tensile strength.
- This aspect of the multilayer structure of the carrier web is accordingly particularly advantageous in combination with the addition of the copolymer comprising ethylene and vinyl acetate to the material of the carrier web and / or as the material of the carrier web. Accordingly, the copolymer comprising ethylene and vinyl acetate can be introduced both in the entire carrier web, in particular in each layer of the carrier web, or else only in at least one layer of the carrier web.
- the outside of the carrier web facing the fleece and / or the tile adhesive can be provided or offset with the copolymer comprising ethylene and vinyl acetate, as a result of which the adhesion to the fleece and / or the tile adhesive can be significantly improved.
- At least one layer - either layer A and / or layer B - of the carrier web has and / or consists of the copolymer comprising ethylene and vinyl acetate, in particular ethylene-vinyl acetate (EVAC).
- EVAC ethylene-vinyl acetate
- at least one outer layer has the copolymer containing ethylene and vinyl acetate, as mentioned above, and / or consists of it.
- a layer structure in the form A-B-A or A-B is preferably provided.
- the outer layers A, A can have at least essentially the same construction - i.e. the same material composition and / or the same layer thickness.
- a layer structure in the form A-B-C would also be conceivable, an outer layer C being different from the outer layer A.
- the outer layer C can have a different proportion of the copolymer containing ethylene and vinyl acetate or contain no copolymer at all containing ethylene and vinyl acetate.
- the aforementioned layer structures make it possible according to the invention that the copolymer comprising ethylene and vinyl acetate is ultimately used in those layers - and there contributes to improving the mechanical properties - where it is also "required". For example, it is not immediately necessary to integrate the copolymer comprising ethylene and vinyl acetate in the middle layer (layer B), although this is of course not excluded according to the invention.
- the outer sides or outer layers of the carrier web can have the copolymer containing ethylene and vinyl acetate, and if necessary only one outer side or one outer layer of the carrier web can also contain the copolymer containing ethylene and vinyl acetate.
- each outer layer (A) and / or the outer layers ((A, A) and / or (A, C)) has / have the copolymer comprising ethylene and vinyl acetate.
- each layer ((A, B) and / or (A, B, C)) of the layer structure (for example AB, ABA and / or ABC) of the carrier web to have the copolymer containing ethylene and vinyl acetate and / or consists of it.
- the copolymer comprising ethylene and vinyl acetate can be introduced or introduced precisely into the layers in which the properties, in particular the mechanical properties, are to be improved.
- the layer (A, B, C) containing the copolymer containing ethylene and vinyl acetate has a mass fraction of the copolymer containing ethylene and vinyl acetate in the material of the layer (A, B, C) of at least 5 wt. -%, preferably between 10% by weight to 80% by weight, more preferably between 20% by weight to 60% by weight, more preferably furthermore between 25% by weight to 55% by weight.
- the aforementioned mass fractions of the copolymer comprising ethylene and vinyl acetate improve the adhesion and the decoupling properties of the entire decoupling sheet and in particular of the carrier sheet to a particular extent.
- thermoplastic polymer and / or elastomer is provided as a further material in the layer (A, B, C) which has the copolymer comprising ethylene and vinyl acetate.
- HDPE, PE and / or PP is very particularly preferably provided as the thermoplastic plastic.
- the copolymer containing ethylene and vinyl acetate is preferably mixed with the further material of the layer (A, B, C) containing the copolymer containing ethylene and vinyl acetate with the further thermoplastic material.
- the further material can in turn have a mass fraction of the material of the carrier web and / or of the mass fraction of the material of the layer (A, B, C) of at least 20% by weight, preferably between 30% by weight to 99% by weight , more preferably between 40% by weight to 95% by weight, more preferably further between 50% by weight to 80% by weight.
- the mass fractions of the further thermoplastic material with the mass fractions of the copolymer containing ethylene and vinyl acetate in the layer (A, B, C) comprising the copolymer containing ethylene and vinyl acetate add up to 100% by weight.
- the layer (A, B, C) containing the copolymer containing ethylene and vinyl acetate has, in addition to the copolymer containing ethylene and vinyl acetate, only one further thermoplastic material.
- a particularly preferred embodiment of the present invention provides that the outer layer (A) and / or the outer layers (A, A) and / or the outer layers (A, C) at least 10%, preferably between 10% to 90% %, more preferably between 40% to 60% and in particular at least substantially 50%, of the layer thickness of a further, in particular central, layer (in particular layer B).
- the advantage of the aforementioned ratios is that the outer layers (layer A or layer C) can have a smaller layer thickness than the "main layer” or central layer B and thus a smaller proportion of material - measured against the total material proportion of the carrier web.
- a multi-layer structure of the carrier web can easily be produced by extrusion molding.
- a coextrusion nozzle and / or a multilayer nozzle can be used to apply or manufacture the carrier web.
- the carrier web can be produced by deep-drawing thermoplastic material.
- a multilayer nozzle can be used as the extrusion nozzle which enables a layer structure in the form A-B-A or A-B-C or A-B.
- a multilayer blown film is produced, which is shaped in a deep-drawing process in particular after its production.
- the above-mentioned preferred ratios of the layer thicknesses of the layer structure of the carrier web ensure the lowest possible material consumption of the copolymer containing ethylene and vinyl acetate, while at the same time that of the copolymer containing ethylene and vinyl acetate associated improvements according to the invention over the prior art can be guaranteed.
- the carrier web in particular the decoupling web, preferably has an adhesive tensile strength of greater than 0.1 N / mm 2 , preferably greater than 0.2 N / mm 2 , more preferably between 0.2 N / mm 2 and 5 N / mm 2 , on.
- the adhesive tensile strength is determined by means of a special test, which is also called adhesive tensile test and / or tear-off test.
- DIN EN 12004: 2017-05 has a specification for determining the adhesive tensile strength under defined conditions.
- Adhesive tensile strengths in the aforementioned order of magnitude enable, in particular, good adhesion to the substrate and also ensure good adhesion to the tile adhesive.
- the tensile adhesive strength of the carrier web can be increased by adding the copolymer containing ethylene and vinyl acetate.
- the carrier web in particular the decoupling web, has a modulus of elasticity of less than 100 GPa, preferably less than 10 GPa, more preferably between 0.01 to 5 GPa and preferably between 0.05 to 2 , 5 GPa.
- the modulus of elasticity is a material parameter from materials engineering, which ultimately describes the proportional relationship between stress and strain in the deformation of a solid body with a linear-elastic behavior.
- the modulus of elasticity is the proportional elasticity constant in Hooke's law. The higher the modulus of elasticity, the less elastic or flexible the solid body. In particular, the modulus of elasticity can be determined according to EN ISO 527-1 (as of May 2019).
- the aforementioned standard is a European standard for plastic to determine the tensile properties, which can be determined by a tensile test with a tensile testing machine.
- the decoupling web in particular on the side opposite the plane of the carrier web, can have a fabric and / or fleece layer.
- the fabric and / or fleece layer can be firmly connected to the carrier web, in particular in particular, the fabric and / or non-woven layer being laminated onto the carrier web.
- the adhesion to the nonwoven layer can in particular be improved by using the copolymer containing ethylene and vinyl acetate compared to the prior art, preferably by up to 30%.
- a spunbonded nonwoven can be used as the nonwoven, in particular a spunbonded nonwoven comprising thermoplastic synthetic material being provided, preferably a polypropylene spunbonded nonwoven.
- the fleece can ultimately correspond to the fleeces already known in practice, which are arranged on a carrier web.
- the knobs are arranged at a distance from one another and, preferably, transversely to the longitudinal direction and in the longitudinal direction of the decoupling sheet.
- the knobs can form a distance to the carrier web plane and to a lower knob plane formed by the knob face.
- the knobs represent so-called “depressions” in the carrier web, so that ultimately an upper carrier web plane results which has a plurality of recesses formed by the knobs, so that the knob faces form the lower knob plane.
- the aforementioned design of the knobs makes it possible, according to the invention, that "channels" arise which contribute to the decoupling.
- knobs are conceivable.
- an at least essentially cuboid-shaped nub can be used.
- a nub with an at least essentially three-legged shape - seen in cross section - is also conceivable.
- the knobs designed as a recess ultimately form side walls of the knobs that connect the knob face to the carrier web plane.
- the knobs and / or at least one knob have an undercut at least in sections, preferably on at least one side wall of the knob.
- the undercut serves to improve the adhesion or clawing of the tile adhesive.
- the decoupling membrane is leveled out after it has been placed on a substrate, in particular with the outer side of the carrier strip having the nonwoven or fabric layer being arranged on the substrate.
- Tile adhesive can be used for filling. A surface covering, in particular tiles, can then be arranged on the tile adhesive.
- the tile adhesive can preferably be introduced into the knobs or into the depressions formed by the knobs and filled out using the decoupling membrane.
- the tile adhesive penetrates the flint cut during the filling process, so that improved clawing is produced. This in turn leads to a fixation and / or a form-fitting fixing of the tile sheet or the covering elements to be applied to the decoupling sheet.
- knobs in particular all knobs, are designed to be at least essentially identical.
- the height of the knobs is between 1 mm and 5 mm, preferably 2 mm to 4 mm, more preferably 2.5 mm to 3.5 mm.
- This comparatively low nub height enables a small overall layer structure and implies the reduced amount of tile adhesive required for the connection between the decoupling membrane and the paving elements. Nevertheless, due to the inventive addition of the copolymer, holding ethylene and vinyl acetate a firm connection between the tile adhesive and the decoupling membrane is achieved while at the same time achieving an excellent decoupling effect.
- the clear distance between adjacent knobs has a width of greater than 2 mm, in particular between 3 mm to 9 mm, preferably between 4 mm to 8 mm, more preferably between 5 mm to 6 mm. This clear distance also determines the width of the channel section and definition with the free space to the adjacent knobs.
- the ratio of the area of the knobbed bottoms or knobbed end faces of all knobs to the carrier web plane is preferably between 40% to 70%, more preferably between 45% to 55% and in particular at least substantially 50%.
- the abovementioned ratios, together with the knob height also define, among other things, the required amount of tile adhesive that is used to bond the decoupling membrane and the covering element. Load distribution of the tensile stress occurring through the channels is made possible in particular on the carrier plate, because the stress occurring is preferably compensated.
- the ratio of 40% to 60%, preferably 45% to 55% is particularly advantageous and has good decoupling properties and good flaft tensile strength.
- intervals and range limits contain any intermediate intervals and individual values and are to be regarded as disclosed as being essential to the invention, even if these intermediate intervals and individual values are not specifically specified.
- FIG. 1 shows a schematic representation of a layer structure of the carrier web according to the invention
- FIG. 3 shows a schematic illustration of a further embodiment of a layer structure according to the invention of the carrier web
- FIG. 4 shows a schematic illustration of a further embodiment of a layer structure according to the invention of the carrier web
- FIG. 6 shows a schematic perspective illustration of a decoupling sheet according to the invention
- FIG. 7 shows a schematic perspective illustration of a further embodiment of a decoupling sheet according to the invention.
- FIG. 8 shows a schematic perspective illustration of a further embodiment of a decoupling sheet according to the invention.
- 6 shows a decoupling sheet 1.
- the decoupling sheet 1 has a carrier sheet 3 and a plurality of knobs 5 protruding from the carrier sheet plane 4.
- the carrier web 3 has a plastic as material and / or consists of a plastic.
- the carrier web 3 can have a thermoplastic material as the material.
- FIG. 5 shows that the decoupling sheet 1 can be covered with covering elements, in the exemplary embodiment shown with tiles 14, for use in a covering element Surface covering structure 2 is provided.
- FIG. 5 shows that a tile covering is provided as the surface covering structure 2.
- the carrier web 3 shown in the exemplary embodiments has a copolymer containing ethylene and vinyl acetate as material and / or consists thereof.
- the copolymer containing ethylene and vinyl acetate is designed as a copolymer of ethylene and vinyl acetate, preferably as ethylene-vinyl acetate (EVA, EVAC).
- the carrier web 3 can have at least one thermoplastic polymer and / or elastomer as a further material.
- FIDPE, PE and / or PP can be provided as a thermoplastic plastic and thus as a further material.
- the copolymer containing ethylene and vinyl acetate can be mixed with the further thermoplastic material.
- the further thermoplastic plastic material of the carrier web 3 can have a mass fraction of the material of the carrier web 3 between 40 to 95% by weight.
- the proportion of the material of the carrier web 3 of the further thermoplastic synthetic material, in particular in relation to the copolymer containing ethylene and vinyl acetate, can be selected as a function of the application environment or the intended use.
- the copolymer comprising ethylene and vinyl acetate can have a mass fraction in the material of the carrier web 3 of at least 5% by weight and in further embodiments between 25% by weight to 55% by weight.
- the copolymer comprising ethylene and vinyl acetate has a vinyl acetate content of at least 5% and in further embodiments between 16% to 30% - based on the copolymer comprising ethylene and vinyl acetate.
- the copolymer containing ethylene and vinyl acetate is thermoplastic.
- FIG. 1 shows that the carrier web 3 has a single-layer structure and is thus formed by the material layer A.
- this layer structure can also be produced by a multilayer extrusion nozzle, with layer A accordingly being able to be applied in several layers of the same material composition.
- the material layer A has an at least substantially homogeneous material distribution.
- FIG. 2 shows that the carrier web 3 has an at least two-layer layer structure 6.
- layers A and B are provided, with both layer A and layer B being designed as outer layers, that is to say forming an outer side of carrier web 3.
- the layers A and B have a material composition that differs from one another.
- Layer A which is shown in Fig. 2, can face the tile adhesive.
- At least one layer A and / or B of the carrier web 3 can have the copolymer comprising ethylene and vinyl acetate.
- the outer layer A has the copolymer containing ethylene and vinyl acetate.
- Fig. 2 a layer structure in the form A-B is shown.
- Layer B may or may not contain the copolymer comprising ethylene and vinyl acetate.
- FIG. 3 shows a layer structure in the form A-B-A, with the outer layers A being able to be of identical or identical design with regard to their layer thickness 7 and / or their material composition.
- the layers A, which are shown in FIG. 3, can have a material composition that differs from the layer B.
- the layer C can have a material composition and / or layer thickness 7 that differs from the outer layer A and / or from the layer B.
- the outer layer C has a changed proportion of the copolymer containing ethylene and vinyl acetate or even no proportion of the copolymer containing ethylene and vinyl acetate at all.
- each layer A, B or A, B, C of the layer structure 6 of the carrier web 3 can have the copolymer containing ethylene and vinyl acetate, the individual layers being can be different in terms of their material composition, their properties and / or their layer thicknesses 7.
- a plurality of further layers can be provided which differ with regard to or compared to layers A, B or A, B, C by their material composition, their properties and / or different layer thickness 7.
- Layer A, B and / or C containing the copolymer containing ethylene and vinyl acetate can have a mass fraction of the copolymer containing ethylene and vinyl acetate in the material of the respective layer A, B and / or C of at least 5% by weight.
- the mass fraction of the copolymer comprising ethylene and vinyl acetate in the outer layer A and / or in the outer layer C is between 30 and 50% by weight.
- at least one thermoplastic plastic material in particular a polymer and / or elastomer
- HDPE, PE and / or PP can be provided as the plastic material.
- the copolymer containing ethylene and vinyl acetate can be mixed with the further plastic material.
- the further plastic material can have a mass fraction between 50 to 90% by weight of the material of the carrier web 3 and / or of the material of the layer A, B and / or C containing the copolymer containing ethylene and vinyl acetate. It is very particularly preferred that the mass fraction of the further plastic layer in layer B is greater than the mass fraction of the copolymer containing ethylene and vinyl acetate.
- the mass fraction of the copolymer containing ethylene and vinyl acetate in the outer layers A and / or C is greater, preferably by at least 50%, than the mass fraction of the copolymer containing ethylene and vinyl acetate in the central or wide area.
- the outer layer A and / or the outer layers A, A and / or A, C at least 10%, in the illustrated embodiment at least essentially 50%, of the layer thickness 7 of a further, in particular central, layer B. Accordingly, the material of the layer B on the overall material of the carrier web 3 or the layer structure 6 of the carrier web 3 have a significantly higher proportion, in particular of up to 80% and / or of at least 40%.
- the carrier web 3, in particular the decoupling web 1 has an adhesive tensile strength of greater than 0.1 N / mm 2 , in further embodiments between 0.2 N / mm 2 to 5 N / mm 2 .
- the carrier web 3, in particular the decoupling web 1 has a modulus of elasticity of less than 100 GPa, in further embodiments between 0.05 to 2.5 GPa.
- FIG. 5 shows that the decoupling sheet 1 has a fabric and / or fleece layer 8.
- a fleece layer 8 is provided.
- the fleece layer 8 is firmly connected to the carrier web 3.
- the fleece layer 8 can be laminated onto the carrier web 3.
- the fleece layer 8 is arranged on the knob face surfaces 10 or on the knob plane 11.
- the fleece layer 8 is arranged on a substrate 17, as can be seen from FIG. 5.
- the fleece layer 8 can be glued to the substrate 17 via an adhesive layer.
- the fleece layer 8 is glued to the substrate 17 by means of the tile adhesive 13.
- the tile 14 has a height of approximately 5 mm +/- 3 mm.
- the height of the knob 5 can be about 4 mm.
- the tile adhesive 13 applied to the top of the carrier web plane 4 can, for example, have a height between 2 to 10 mm, in particular between 3 to 6 mm.
- the thickness of the carrier web 3 and / or the fleece layer 8 can be approximately 0.5 mm.
- the tile adhesive layer can have a height of 3 to 6 mm.
- FIGS. 6 to 8 show that the knobs 5 are arranged at a distance from one another.
- the knobs 5 run both in the longitudinal direction L and transversely to the longitudinal direction L.
- the knobs 5 have an orderly arrangement. But this does not have to be the case.
- Disordered arrangements of the knobs 5 are also possible.
- the knobs 5 point to the upper carrier web plane 5 and a lower Ren, formed by the outer knob face 10 knob plane 1 1 a distance 9 on.
- the knob plane 1 1 is formed by the knob face surfaces 10.
- knobs 5 form an at least substantially cuboidal depression.
- 7 and 8 show that the knobs 5 have an at least essentially three-legged cross-sectional shape. In principle, however, other shapes are also possible.
- the distance 9 to the upper carrier web plane 5 is ultimately determined by the fleas of the side walls 16 of the knob 5, the side walls 16 connecting the carrier web plane 4 with the knob plane 11.
- the knob interior 15 is ultimately limited by the side walls 16.
- knobs 5 and / or at least one knob 5 has a flint cut 12 at least in sections.
- the flint cut 12 is crescent-shaped or in the shape of an arcuate section.
- a flint cut 12 having at least an essentially rectangular cross-sectional shape is also possible in principle.
- projections 18 are provided on the knob end faces 11. Ultimately, the projections 18 can have any shape and ultimately serve to structure the knobbed base.
- the embodiments according to the invention to be compared with one another and comparative example 0 not according to the invention have an at least essentially structurally identical design of the shape of the decoupling sheet, the nub shapes of the examples corresponding in geometric shape.
- the exemplary embodiments differ only in terms of their material composition.
- the carrier webs of the decoupling web are produced by extrusion of thermoplastic plastic and subsequent molding on a deep vacuum roll.
- a polypropylene spunbond is laminated to the carrier sheet on the nub level.
- the extrusion takes place with a multi-layer nozzle, the "single-layer structure" also being obtained by the multi-layer extrusion nozzle, although the same material composition is ultimately present in the applied layers so that the multi-layer extrusion nozzle can then produce a single-layer structure.
- the exemplary embodiments to be compared also have at least essentially the same total layer thickness of the carrier web, the ratio of the layers being specified in the table below in the case of a multilayer structure.
- the knob shape of the exemplary embodiments corresponds at least essentially to the square knob shown in FIG. 6.
- the exemplary embodiments have the following material composition:
- a two-layer structure is provided, namely a layer structure of the form AB.
- a spunbonded layer comprising polypropylene is arranged, in particular laminated, on layer B.
- HDPE is provided as a further thermoplastic plastic material and also as a material for the comparative examples not according to the invention.
- the copolymer containing ethylene and vinyl acetate is formed as ethylene-vinyl acetate and has a vinyl acetate content of at least essentially 28% based on the copolymer of ethylene and vinyl acetate.
- This material is named "EVA28”.
- Another copolymer containing ethylene and vinyl acetate is designed as ethylene-vinyl acetate and has a vinyl acetate content of at least essentially 18% based on the copolymer of ethylene and vinyl acetate. This material is referred to as "EVA18".
- thermoplastic plastic material When adding the copolymer of ethylene and vinyl acetate to the thermoplastic plastic material, it is provided that this is mixed with the thermoplastic plastic material prior to extrusion of the carrier web. An extrusion takes place both with the thermoplastic material and with the copolymer of ethylene and vinyl acetate.
- the aforementioned exemplary embodiments have been examined with regard to different criteria.
- the adhesive tensile strength was determined in accordance with DIN EN 12004-02: 2017-05.
- modulus of elasticity was determined to determine the flexibility.
- decoupling properties have been investigated when using the decoupling sheet as a decoupling underlay for a tile covering. The adhesion to the tile adhesive of the decoupling membrane was also determined. The water resistance has also been determined.
- the addition of the copolymer containing ethylene and vinyl acetate can also improve the adhesion to the tile adhesive and the decoupling properties. This results in an improved application and an improved use of the decoupling sheet according to the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019004633.1A DE102019004633A1 (de) | 2019-07-05 | 2019-07-05 | Entkopplungsbahn |
| PCT/EP2020/066913 WO2021004745A1 (de) | 2019-07-05 | 2020-06-18 | Entkopplungsbahn |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3966403A1 true EP3966403A1 (de) | 2022-03-16 |
| EP3966403C0 EP3966403C0 (de) | 2024-03-20 |
| EP3966403B1 EP3966403B1 (de) | 2024-03-20 |
Family
ID=71111425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20733955.7A Active EP3966403B1 (de) | 2019-07-05 | 2020-06-18 | Entkopplungsbahn |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20220372767A1 (de) |
| EP (1) | EP3966403B1 (de) |
| CA (1) | CA3143883C (de) |
| DE (1) | DE102019004633A1 (de) |
| WO (1) | WO2021004745A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11725399B1 (en) * | 2022-10-17 | 2023-08-15 | Dmx Membranes Limited | Flooring underlayment |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4141187A (en) * | 1977-01-28 | 1979-02-27 | Graves Robert J | Roofing and surfacing material and method |
| US4844849A (en) * | 1985-02-21 | 1989-07-04 | Congoleum Corporation | Method of making embossed decorative sheets |
| DE3701414A1 (de) * | 1987-01-20 | 1988-07-28 | Werner Schlueter | Verfahren und vorrichtung zum aufbringen von verkleidungen, wie keramikplattenbelaegen, putzmoertel oder dergleichen auf einem wand- oder einem bodenuntergrund eines gebaeudes |
| DE19918343C2 (de) * | 1999-04-22 | 2001-03-08 | Wacker Chemie Gmbh | Verfahren zur Herstellung von Faservliesen nach dem Airlaidverfahren |
| US7393371B2 (en) * | 2004-04-13 | 2008-07-01 | 3M Innovative Properties Company | Nonwoven abrasive articles and methods |
| NO320438B1 (no) * | 2004-04-15 | 2005-12-05 | Isola As | Knasteplate |
| KR100601401B1 (ko) * | 2004-11-02 | 2006-07-13 | 주식회사 익성 | 차음 조성물 및 그 차음재 |
| ES2431241T3 (es) * | 2005-04-13 | 2013-11-25 | Schluter-Systems Kg | Estructura del suelo, embaldosada con losetas de cerámica |
| US7651757B2 (en) * | 2005-08-31 | 2010-01-26 | Sealed Air Corporation (Us) | Floor underlayment |
| KR20100068761A (ko) * | 2008-12-15 | 2010-06-24 | 고덕기 | 층간 바닥 충격음 차단 시공방법 |
| ES2603555T3 (es) * | 2009-03-18 | 2017-02-28 | Construction Research & Technology Gmbh | Estera de separación |
| EP2372041B1 (de) * | 2010-03-29 | 2016-08-17 | Infinex Holding GmbH | Trägerplatte sowie Verfahren zu deren Herstellung |
| US20120237743A1 (en) * | 2011-03-18 | 2012-09-20 | O'donnell Hugh Joseph | Reinforced Multi-Layer Polymeric Films and Methods of Forming Same |
| US20150104627A1 (en) * | 2013-10-11 | 2015-04-16 | The Procter & Gamble Company | Multi-Layer Polymeric Films |
| DE102013224774A1 (de) * | 2013-12-03 | 2015-06-03 | Tesa Se | Mehrschichtiges Produkt |
| WO2015161888A1 (de) * | 2014-04-24 | 2015-10-29 | Ardex Anlagen Gmbh | Entkopplungsmatte für einen mit belagselementen bedeckbaren flächenbelagsaufbau |
| KR20160019141A (ko) * | 2014-08-11 | 2016-02-19 | 송종근 | 층간소음 전달 방지 및 원적외선 기능이 부여된 차음재 및 그의 설치방법 |
| EP3064561A1 (de) * | 2015-03-04 | 2016-09-07 | Sika Technology AG | Schmelzklebstoff mit verbesserter uv-stabilität und verwendung zur herstellung einer mehrschichtigen kunststoffbahn |
| US9328520B1 (en) * | 2015-07-17 | 2016-05-03 | Matthew Kriser | High strength in-floor decoupling membrane |
| DE102016123211A1 (de) * | 2016-12-01 | 2018-06-07 | Gebrüder Jaeger GmbH | Entkopplungsmatte |
-
2019
- 2019-07-05 DE DE102019004633.1A patent/DE102019004633A1/de not_active Withdrawn
-
2020
- 2020-06-18 CA CA3143883A patent/CA3143883C/en active Active
- 2020-06-18 US US17/623,308 patent/US20220372767A1/en not_active Abandoned
- 2020-06-18 WO PCT/EP2020/066913 patent/WO2021004745A1/de not_active Ceased
- 2020-06-18 EP EP20733955.7A patent/EP3966403B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20220372767A1 (en) | 2022-11-24 |
| EP3966403C0 (de) | 2024-03-20 |
| EP3966403B1 (de) | 2024-03-20 |
| WO2021004745A1 (de) | 2021-01-14 |
| CA3143883C (en) | 2024-04-16 |
| DE102019004633A1 (de) | 2021-01-07 |
| CA3143883A1 (en) | 2021-01-14 |
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