MICROGEL CONTAINING TREAD MIXTURE FOR WINTER TYRES

摘要

(L SBR)(BR)(NR)The present invention relates to vulcanisable rubber mixtures containing at least the following components: I) 100 pbw of an oil free rubber matrix consisting of a) 15 79 pbw preferably 20 70 pbw of at least one solution SBR (L SBR) (oil free) with a glass transition temperature (Tg) between 70°C and 10°C b) 20 75 pbw preferably 25 70 pbw of at least one 1 4 cis polybutadiene (BR) (oil free) with a glass transition temperature (Tg) between 95°C and 115°C c) 1 37.5 pbw preferably 5 35 pbw of natural rubber (NR) (oil free) and/or at least one synthetically produced polyisoprene (IR) with a glass transition temperature (Tg) between 50°C and 75°C relative to the oil free natural rubber (NR) or the oil free synthetically produced polyisoprene (IR); II) at least one polybutadiene based microgel that contains hydroxyl groups; III) at least one oxide filler that contains hydroxyl groups; IV) at least one polysulphide containing alkoxysilane; V) at least one vulcanisation agent; VI) optionally at least one rubber additive.