GB747550A - Process for the production of a floor covering and floor construction produced by this process - Google Patents

Abstract

747,550. Floors. RUBEROIDWERKE AKT.-GES. Dec. 6, 1954 [July 2, 1954; Sept. 25, 1954], No. 35297/54. Drawings to Specification. Class 20(4). A floor comprises a layer of resilient material laid on a sub-floor and covered by a foil of wearresistant synthetic material which is of a size and shape corresponding to the floor area to be covered and is stretched along its plane parallel with the floor surface and secured while still under tension along its boundary edges. The foil may be of or contain polyvinyl-chloride or be based on a polyamide or a polyethylene and is made by joining together strips of the material by sticking or welding with or without the use of supporting strips. The resilient layer may be of foam rubber, synthetic foam material or felt produced from animal, vegetable or mineral fibres. When the resilient layer is of foam rubber or synthetic foam material it may be stuck to the wear-resistant material. A wooden frame may be provided round the periphery of the floor area to be covered for the securing by nails of the wear-resistant material ; distance-pieces may be provided on the nails to prevent recesses being formed where the wear-resistant material is secured. Below the layer of resilient - material a further layer of material may be provided to compensate for any unevenness of the sub-floor or to provide additional heat and sound insulation. The sub-floor may be covered with sand in which insulating building slabs are then embedded or a layer of porous concrete, which may be mixed with bitumen or a synthetic resin to increase imperviousness to water, may be cast on the sub-floor. This additional layer may also be built up on a foundation of gypsum or produced as a xylolite finish. A layer of bitumen is preferably provided between this additional layer and the wear-resistant material. This may be done by coating the additional layer with bitumen or providing bituminised cardboard which may be coated with bitumen only on its under side. The bituminised cardboard may be covered with cork granules and then also constitute the resilient layer. In a further modification cork granules may be coated with bitumen or other water-repellant adhesives and formed into a stable layer. When felt is used as the resilient material it may be treated with preservatives. The thickness of the wearresistant foil may suitably be from 0.5 to 0.8 m.m. and the thickness of the resilient layer from 2 to 4 m.m.