METHOD OF MAKING RECYCLED RUBBER Russian patent published in 2013 - IPC C08J11/10 B29B17/00 C08L21/00 C08K5/09 C08K5/47 

FIELD: process engineering.

SUBSTANCE: invention relates to processing of worn-out tires and to methods of rubber wastes recovery. Proposed method comprises mixing crumb of worn-out tires with digester containing carbon chain rubber and altax to complete digestion of rubber wastes. Zinc stearate in amount of 26 wt % of total amount of digester is added to the latter prior to its mixing with crumb. Sheet is produced from digestion mix to be cut into equal weight and area plates to be laid regularly over the length and width of feeder belt. Said plates are rolled to sheet of thickness smaller than 1 mm. Surface of made sheet is filled with rubber crumb at digester-to-crumb ratio of 5:95. Sheet is passed through rolls several times and folded, at least, in two after every pass in rolls.

EFFECT: simplified process, lower costs.

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