# US 2016/0262249 A1 · Electro-conducting tile or floorboard floor covering

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- Number: US 2016/0262249 A1
- Document ID: US20160262249A1
- Status: Published application
- Kind: A1
- Application number: 15/053,472
- Filed: 2016-02-25
- Published: 2016-09-08
- Earliest claimed: 2015-03-02
- Assignees: Gerflor
- Applicants: Gerflor
- Inventors: Olivier Ceysson; Aurélien Carin
- Web page: https://patentgrep.com/patent/US20160262249A1

## CPC

- H05F 3/025: {Floors or floor coverings specially adapted for discharging static charges}
- B32B 3/06: for securing layers together; for attaching the product to another member, e.g. to a support {, or to another product, e.g. groove/tongue, interlocking}
- B32B 5/022: {Non-woven fabric}
- B32B 5/024: {Woven fabric}
- B32B 5/028: {Net structure, e.g. spaced apart filaments bonded at the crossing points}
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 27/12: next to a fibrous or filamentary layer
- B32B 27/18: characterised by the use of special additives
- B32B 27/20: using fillers, pigments, thixotroping agents
- B32B 27/304: {comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF}
- E04C 1/00: Building elements of block or other shape for the construction of parts of buildings (of relatively thin form E04C2/00; structural elongated elements designed for load-supporting E04C3/00, e.g. columns or pillars E04C3/30; manufacture or material of building bricks, stones, or the like B28, C03, C04; paving elements E01C; general building constructions E04B, e.g. walls E04B2/00, floors E04B5/00, roofs E04B7/00, ceilings E04B9/00; {roof coverings E04D; coverings for walls or ceilings E04F13/00; floorings E04F15/00;} structural elements specially designed for built-in conduit shafts E04F17/00; {elements for buildings for particular purposes E04H7/00}; special elements for building ovens or furnaces F24B, F27D)
- E04F 15/105: {of organic plastics with or without reinforcements or filling materials}
- E04F 15/107: {composed of several layers, e.g. sandwich panels (layered products in general B32B; producing decorative panels or veneers B44C5/04)}
- H01B 1/04: mainly consisting of carbon-silicon compounds, carbon or silicon
- B32B 2250/40: Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
- B32B 2255/10: on synthetic resin layer or on natural or synthetic rubber layer
- B32B 2255/26: Polymeric coating
- B32B 2262/101: Glass fibres
- B32B 2264/108: Carbon, e.g. graphite particles
- B32B 2264/12: Mixture of at least two particles made of different materials
- B32B 2307/202: Conductive
- B32B 2307/21: Anti-static
- B32B 2307/412: Transparent
- B32B 2307/718: Weight, e.g. weight per square meter
- B32B 2307/732: Dimensional properties
- B32B 2307/738: Thermoformability
- B32B 2419/04: Tiles for floors or walls
- B32B 2471/00: Floor coverings (B32B2419/04 takes precedence)
- E04F 2201/09: Puzzle-type connections for interlocking male and female panel edge-parts
- E04F 2290/047: with a bottom layer for fire insulation
- H05F: STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- E04C: STRUCTURAL ELEMENTS; BUILDING MATERIALS (for bridges E01D; specially designed for insulation or other protection E04B; elements used as building aids E04G; for mining E21; for tunnels E21D; structural elements with broader range of application than for building engineering F16, particularly F16S)
- E04F: FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS (windows, doors E06B)
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})

## Abstract

A component, such as a title or a floorboard, has electro-conductive properties for producing a floor covering, or a similar system, in particular for a medium sensitive to static electricity. The component includes a stack of layers integral with one another and including successively: a wearing layer of plastic consisting of granules of conductive material spread out through the thickness of said wearing layer, a first textile reinforcing armature, a middle layer of plastic comprising granules of conductive material spread out through the thickness of said middle layer, a second textile reinforcing armature, and an under layer of plastic material consisting of granules of conductive material spread out through the thickness of said under layer.

## Claims

### Claim 1

A component, such as a tile or a floorboard, having electro-conductive properties for producing a floor covering, or a similar system, comprising:
a stack of layers integral with one another and including:
a wearing layer of plastic consisting of granules of conductive material spread out through the thickness of said wearing layer;
a first textile reinforcing armature;
a middle layer of plastic comprising granules of conductive material spread out through the thickness of said middle layer;
a second textile reinforcing armature; and
an under layer of plastic material consisting of granules of conductive material spread out through the thickness of said under layer.

### Claim 2 (depends on 1)

A component according to claim 1, wherein said first and/or second reinforcing armature (4, 6) are coated with a conductive binder.

### Claim 3 (depends on 2)

A component according to claim 2, wherein the first and/or second reinforcing armatures are coated in a conductive binder in a quantity included between 2 and 50 g/m2.

### Claim 4 (depends on 3)

A component according to claim 3, wherein the conductive binder contains carbon black in a quantity included between 30% and 80% by weight.

### Claim 5 (depends on 1)

A component according to claim 1, wherein the granules of conductive material in the wearing layer and/or the middle layer and the under layer are granules of carbon black.

### Claim 6 (depends on 5)

A component according to claim 5, wherein the wearing layer includes between 4% and 10% by weight of conductive granules, which conductive granules contain between 15% and 25% by weight of carbon black.

### Claim 7 (depends on 5)

A component according to claim 5, wherein the middle layer and the under layer comprise between 8% and 25% by weight of conductive granules, which conductive granules contain between 20% and 35% by weight of carbon black.

### Claim 8 (depends on 1)

A component according to claim 1, wherein the wearing layer is aligned on at least one of its faces, or on both, with a layer of conductive varnish.

### Claim 9 (depends on 1)

A component according to claim 1, wherein the under layer is coated, on the reverse side, with a layer of conductive varnish.