Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F15/00—Flooring
  • E04F15/02—Flooring or floor layers composed of a number of similar elements
  • E04F15/02133—Flooring or floor layers composed of a number of similar elements fixed directly to an underlayer by means of magnets, hook and loop-type or similar fasteners, not necessarily involving the side faces of the flooring elements
  • E04F15/02144—Flooring or floor layers composed of a number of similar elements fixed directly to an underlayer by means of magnets, hook and loop-type or similar fasteners, not necessarily involving the side faces of the flooring elements by magnets

Definitions

• the invention relates to a strapless, elastic, plastic-based floor covering which can be fastened reversibly and without adhesive on a magnetically attractable base.
• the invention relates to a strapless, elastic plastic-based floor covering which has a layer which contains at least one particulate magnetic material, the floor covering having a bending stiffness according to DIN 53 350 of 270-1700 N / mm 2 .
• EP 0 567 608 B1 describes a method for reversibly fastening a covering known on a pad. It becomes a magnetic during the production of the covering attractive bulk material integrated into the covering material.
• EP 0 567 608 B1 is a carpet with a decorative top layer (pile layer) and a carrier layer fixing this, in which, instead of the conventionally embedded in the carrier layer, only particles serving to increase the basis weight (e.g. Filler material) magnetically attracting particles. So that leaves achieve the basis weight desired for exact laying and also that the carpet remains on every surface. Because the magnetically attractive particles in the backing of the carpet are integrated, it should be ensured that internal tensions and in consequence of it, dimensional and geometric changes do not occur.
• homogeneous floor coverings such as those based on DIN 16951 or DIN EN 649 are defined by flexible PVC floor coverings, i.e. Floor coverings that are in cross section, i.e. from the top to the bottom of a homogeneous mixture of the components and therefore the same across the entire cross-section have physical and chemical properties, is the incorporation of particulate magnetic materials disadvantageous because these particles a more or less intense coloring (some of these are materials colored black) and thus the coloring and color pattern of the Significantly affect flooring or make it impossible.
• the magnetic Attraction disproportionately with the distance between magnetic attracting and magnetically attractable particles are those magnetically attractive particles in the immediate vicinity of the surface of the Floor coverings that come into contact with the magnetically attractable surface stands (i.e. the underside of the flooring) for the strength of the magnetic Attraction most effective. Conversely, they attract magnetically attractive particles all the less for magnetic attraction and thus for fastening the Flooring, the further they go from the bottom of the flooring towards are removed to its top. To ensure adequate The particulate magnetic material must be relatively attractive Concentration in the vicinity of the underside surface.
• heterogeneous or multi-layered strapless flooring made up of at least two layers, namely the Wear or top layer and at least one lower layer.
• the wear layer is formed from a material that meets the high requirements for a Flooring with regard to e.g. Wear resistance, dirt repellency etc. met.
• the wear layer is patterned in the desired manner provided, either by using differently colored plastic granules, which according to known techniques, e.g. Calenders, in the shape of a be brought flat sheet material, or by applying a pattern using printing and spraying techniques. In the latter case, the patterned Top of the flooring to protect the pattern, preferably one transparent top layer applied, or the top with a varnish or Finish.
• the wear layer is made of high quality materials must be made as thin as possible as a rule for cost reasons.
• the floor covering a usable thickness and for laying if necessary, specific properties such as impact sound insulation, thermal insulation, moisture barrier etc. to lend, depending on the application, one or more Layers applied to the underside of the wear layer. These can partly be filled with inexpensive fillers or recycled material contain.
• the present invention is therefore based on the object of a strapless elastic plastic-based flooring in sheet form or as flooring tiles provide the non-sticky and easy on the surface can be fixed or fastened and which is just as easy and fast from Allows the surface to be loosened without the surface being impaired and an immediate further use without necessary restoration work is available.
• the flooring should be on the Adhere to the underlay so that it does not detach from the subsurface when in use.
• the floor covering should have the desired properties of previous floor coverings maintained on a plastic basis, but without the aforementioned disadvantages to show.
• Another object of the invention is to provide a Process for the production of floor coverings of the type mentioned.
• a strapless, elastic, plastic-based floor covering which can be attached reversibly and without adhesive to a base made of magnetically attractable material, comprising a wear layer and at least one further layer (under layer) arranged under the wear layer, the at least one particulate magnetic material and a binder contains, the floor covering has a bending stiffness according to DIN 53 350 of 270-1700 N / mm 2 .
• floor coverings on a plastic basis only without problems using magnetic forces can be attached to the ground if they have a certain Have rigidity.
• the floor covering must be stiff enough to support the Thrust forces that occur under load, despite the lack of support from to be able to withstand an adhesive sufficiently.
• the floor covering should not be too stiff, otherwise it will no longer adhere to larger areas Can adjust uneven floors.
• the flooring are largely dimensionally stable, i.e. in the event of climate fluctuations (change in Temperature, humidity, etc.) do not go beyond a tolerable level expand or shrink.
• An expansion would result in a detachment from Underground results, whereas shrinking to crevices in the flooring leads.
• the dimensional changes are on the one hand due to different physical Properties of the different components of the floor covering, on the other hand, it can also be attributed to material tensions that are caused by the manufacturing process are.
• the layer containing the magnetic material either as a second Layer on the underside of a homogeneous flooring or as the bottom Layer of a multi-layer flooring is arranged with homogeneous Floor coverings are only created as a starting material or with heterogeneous floor coverings reinforced.
• the layer to be applied according to the invention contains one magnetic material that has completely different physical properties, than a conventional filler, for example.
• the layer containing the magnetic material should be as possible be thin because the magnetic attraction with the distance from the magnetic tightenable pad disproportionately decreases and therefore the relative expensive, particulate magnetic material for economic reasons in immediate surface proximity of the floor covering (i.e. on its underside) should be present. For these reasons and because of the largest possible magnetic attraction that is to be achieved to the flooring in sufficient concentration on the base, the concentration of the magnetic material in the layer should be as high as possible. It is advantageous, a magnetic material with the highest possible magnetic Use susceptibility. It is also preferred that the magnetic Layer containing material as the bottom layer of the floor covering. However, the magnetic layer may need to be provided represents the bottom layer, or the floor covering on its underside with a to provide an additional thin layer or thin film or a varnish. This is necessary, for example, if the flooring is based on plasticizers containing PVC is produced and should be prevented that the Plasticizer migrated into the base or the surface.
• the one containing the magnetic material Layer in their physical behavior can be significantly different from the other layer (s) in the floor covering. Therefore have to the components of the layer or layers with regard to dimensional stability and dimensional stability of the resulting flooring depending on the used magnetic material carefully coordinated become. This also includes that for the manufacture of the magnetic Material containing layer required materials such as polymer Binders, additives, auxiliaries, etc.
• the magnetic material integrated into a layer that is connected to the floor covering over the entire surface is.
• this forms the magnetic material material containing no coherent, the entire surface of the Floor covering (sheet or tile) covering layer, but covers the bottom of the flooring only partially.
• the magnetic Material and at least one polymer binder containing material the underside of the floor covering is applied so that partial areas are created, which are a predetermined distance apart.
• the necessary Distance of the faces can be determined by the maximum dimensional change of material in extreme cases when using floor coverings expected ambient conditions is measured. The smaller the partial areas are, the less material expansion or contraction leads to one Deformation of the flooring.
• the partial areas can be any geometric Have figure.
• Magnetic attraction can be the distances between the faces also be larger than required by the material-related dimensional change is.
• the material containing the magnetic material only applied to the underside of the floor covering in the form of a grid or in spots his.
• the partial areas can be laminated by prefabricated pieces be attached or, for example, using screen printing technology with subsequent drying or curing of the magnetic material containing, screen-printable material, for example by crosslinking of polymer chains.
• the minimum thickness of the covering should not be undercut may, since the shear forces occurring under load can lead to the Push floor covering sheets or floor covering tiles one below the other. Therefore the edges of floor coverings according to the invention must be vertical Have an extent of at least 1.5 mm to serve as a support surface can. This is the one usually attached in the upper edge area Bevel, the slight unevenness of the surface or production-related Should compensate for tolerances in the thickness of the floor coverings, not included.
• magnetic materials can be in particle form according to the invention be used.
• magnetic material are to understand all materials under the influence of an external magnetic field be magnetized permanently.
• permanent, Permanent or hard magnets used i.e. magnetic materials with Coercive field strengths over 1000 A / m, such as so-called AINiCo alloys with the main components Fe, Co, Ni, Al, Cu and Ti.
• PtCo, FeCoVCr and SECo alloys as well as ferrites, coercite, Koerox and Cr, W, Co steels are used.
• hard ferrites are most preferred.
• the base on which the floor coverings according to the invention are attached should either be made of magnetically attractable material, such as e.g. Sheet iron, or must contain magnetically attractable material, e.g. Iron powder in one layer.
• the one having the magnetically attractable material Underlay is before laying the floor coverings according to the invention for the first time and is then available without any further steps after removal of the laid floor covering for re-covering with the invention or other floor coverings.
• the floor coverings according to the invention can have additional layers have that between the wear layer and the magnetic material containing layer are arranged, such as a heat insulation layer, a Impact sound insulation layer, a moisture barrier layer and the like.
• plastic i.e. as a polymeric binder for the wear layer and any another layer of any plastic commonly used for flooring be used.
• plastic include in particular polyvinyl chloride (PVC) and PVC-based plastics, ethylene-vinyl acetate copolymer (EVA), homo- or Copolymers of ethylenically unsaturated compounds or a mixture thereof, such as polyethylene (PE), polypropylene (PP), possibly with one or more Comonomers, ethylene-alkyl acrylate copolymers, and mixtures thereof.
• PVC polyvinyl chloride
• EVA ethylene-vinyl acetate copolymer
• PE polyethylene
• PP polypropylene
• Comonomers ethylene-alkyl acrylate copolymers
• terpolymers such as ethylene-propylene-diene copolymers (EPDM)
• EPDM ethylene-propylene-diene copolymers
• Block copolymers such as styrene-isoprene-styrene (SIS) and styrene-butadiene-styrene (SBS) be used.
• PVC is preferred among the aforementioned plastics.
• the floor coverings according to the invention can also contain conventional fillers such as Chalk, kaolin, talc, wood flour, quartz flour, dolomite, silica, heavy spar and slate flour or any mixture thereof.
• the inventive Common colorants such as dyes and pigments, additives and auxiliaries, such as antioxidants, UV stabilizers, antistatic agents and Lubricant included.
• the layer containing the magnetic material has besides the magnetic material there is no filler or if a If filler is desired, the filler is added in an amount that is clear is less than the amount of magnetic material.
• the production of the floor coverings takes place in such a way that the individual layers are produced separately in a manner known per se, by premixing and plasticizing the components of the layers, then the plasticized mass in a suitable manner in the form of a flat layer is brought (e.g. by calendering) and the obtained Layers are laminated together. It is preferred that the lowest Layer of the floor covering contains the magnetic material.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Floor Finish (AREA)

Applications Claiming Priority (2)

Publications (1)

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Citations (4)

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• 1999
  • 1999-12-10 DE DE1999159681 patent/DE19959681A1/de not_active Ceased
• 2000
  • 2000-12-08 EP EP00126489A patent/EP1106747A1/fr not_active Withdrawn

Patent Citations (5)

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