The invention relates to conductive multi-layer materials for leak detection applications. The electrically conductive multi-layer material comprises a woven glass fibre web (2) having a binding agent (4) and a fire retardant compound (5), which is impregnated with electrically conductive carbon particles (6), wherein one side of the glass fibre web (2) is coated with metallic electrically conductive layer (10) by the means of vacuum deposition.
B32B 7/00 - Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical propert; Layered products characterised by the interconnection of layers
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
C03C 25/47 - Coatings containing composite materials containing particles, fibres or flakes, e.g. in a continuous phase
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
D06M 11/84 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising combined with mechanical treatment
B32B 5/22 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous
B32B 3/08 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
B32B 17/04 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like in the form of fibres or filaments bonded with or embedded in a plastic substance
B32B 17/02 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like in the form of fibres or filaments
2.
AN ELECTRICALLY CONDUCTIVE MATERIAL FOR APPLYING IT UNDER A NON-CONDUCTIVE WATER INSULATION LAYER
The invention relates to electrically conductive materials for leak detection applications. The conductive multilayer materials are especially suitable for water tightness inspections on roofs and other leak proof structures. Electrically conductive material (1) for applying it under a non- conductive water insulation layer comprises a nonwoven PET (Polyethylene terephthalate) or PP (Polypropylene) polymer layer (2) and a conductive particle coating (3) consisting of electrically conductive carbon and/or metal particles (4), uniformly covering complete surface of the polymer layer (2), and an acrylic binder (5). The invention further relates to the method of manufacture of said electrically conductive material as well as the use thereof.
B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
H01B 1/02 - Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
H01B 1/04 - Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon, or silicon
patents
