Rubber compounds, method for producing rubber compounds and use of polyurethanes as effective plasticizers in rubber compounds

Abstract

The subject of the application is rubber mixtures, a method for obtaining them, and new plasticizers for use in rubber mixtures. The rubber mixtures contain natural rubber and / or synthetic rubber in an amount of 100 parts by weight. and from 2 to 8 parts by mass of a plasticizer per 100 parts by mass of natural rubber and / or synthetic rubber, wherein the plasticizer is a glycolysate being a product of thermochemical depolymerization of a polyurethane material in a solid and / or foamed form, obtained from glycol or oligodiol and a polyurethane material in the glycolysis process, and the natural and / or synthetic rubber includes isoprene rubber (IR), butadiene rubber (BR), styrene butadiene rubber (SBR), nitrile butadiene rubber (NBR), hydrogenated nitrile butadiene rubber (HNBR), ethylene propylene rubber (EPM) and / or ethylene propylene diene rubber (EPDM).