Patent ID: 6908965

Claim:
Rubber compounds consisting of uncrosslinked rubbers (A), crosslinked rubber particles (B), multifunctional isocyanates (C) and polyols (D), wherein, relative in each case to 100 parts by weight (phr) of the rubber components (A), the content of said crosslinked rubber particles (B) is 1 to 150 parts by weight, the content of said multifunctional isocyanates (C) is 1 to 100 parts by weight, and the content of said polyols (D) is 1 to 50 parts by weight, wherein component (A) is selected from the group consisting of NR, IR, IS, SBR, BR, NBR, IIR, BIIR, CIIR, HNBR, SNBR, SIBR, CR, ENR, X-NBR, X-SBR, EAM, EVM, CO, CEO, Q, AU, EU and mixtures thereof and wherein component D is selected from the group consisting of polyester polyols, polyether polyols, polycarbonate polyols and mixtures thereof.