METHOD OF MANUFACTURING TYRE REGENERATE Russian patent published in 1999 - IPC

FIELD: rubber industry. SUBSTANCE: method is first of all distinguished by using tyre crumb obtained by barodestruction disintegration. Process conditions and chemical reagents are selected to provide rubber devulcanization, that is to give a maximum destruction of polysulfide bonds and simultaneously prevent rubber molecule destruction. Resultant regenerate, when recurred, shows high level of mechanical properties and contains little volatile and extractable admixtures. Rubber crumb is mixed with other ingredients, devulcanization is accomplished through mechanical destruction, and regenerate is refined on special rolls. EFFECT: avoided gas emission and prevented environmental pollution. 2 cl, 1 tbl