| abstract |
FIELD: chemistry. n SUBSTANCE: invention relates to sulphur-crosslinkable rubberizing mixture for strengthening elements in vehicle pneumatic tyres, comprising 70 to 100 phr (parts by weight, based on 100 parts by weight of total rubbers in the mixture) of natural rubber, up to 30 phr of at least one polybutadiene, up to 15 phr of at least one carbon black, 20 to 100 phr of at least one high-dispersibility silica dioxide, at least one silane coupling agent and a bonding system. Present invention also relates to automotive pneumatic tyres comprising sulphur-crosslinkable rubberizing mixture. High-dispersibility silica dioxide has a CTAB number to ASTM D 3765 of more than 130 m 2 /g. n EFFECT: improved resistance to cracking and growth of cracks with good adhesion and good mechanical and dynamic properties. n 9 cl, 1 tbl |