METHOD FOR MANUFACTURING RUBBER TILES Russian patent published in 2017 - IPC C09D175/04 B32B5/00 C08L17/00 E01C13/00 E01C15/00 

FIELD: construction.

SUBSTANCE: method for manufacturing rubber tiles comprises preparing the mixture by mixing the filler from the rubber crumb and the polyurethane-based binder, while simultaneously and separately preparing the mixtures for the base layer and the upper coloured layer. In the mixture for the base layer, the filler of rubber crumb with the fraction of 1-2 mm is used; in the mixture for the top coloured layer, the filler of rubber crumb with the fraction of 0.5-1 mm and a pigmentary dye are used. While preparing the mixture for the top coloured layer, with the exception of the red and the grey colour, the mixture bleaching process is first carried out by means of adding titanium dioxide and then mixing the bleached mixture with the pigment dye; thereinafter, the mixture for the top coloured layer and the mixture for the base layer are subsequently loaded into the mould. The moulds with the mixtures are installed in vertical rows, pressed under pressure, then the resulting mixture is maintained until completely cured.

EFFECT: invention allows to improve the quality of rubber tiles due to obtaining a smoother and more dense surface, to reduce the consumption of mounting glue, to eliminate the formation of lumps when mixing, to simplify the production line.

6 cl, 5 ex