Sulfur-crosslinkable rubberizing mixture

摘要

A sulfur-crosslinkable rubberizing mixture for strengthening elements in motor vehicle pneumatic tires comprises 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, 40 to 70 phr of at least one carbon black and a bonding system. Further, motor vehicle pneumatic tires are disclosed that comprise the sulfur-crosslinked rubberizing mixture. The key conflict between tear propagation resistance, stiffness and heat build-up is solved by virtue of the carbon black being a nanostructured carbon black with a rough surface.

主权项

1. A sulfur-crosslinkable rubberizing mixture for reinforcement in pneumatic tires, the mixture comprising:
from 70 to 100 phr (parts by weight, based on 100 parts by weight of all of the rubbers in the mixture) of natural rubber; from 0 to 30 phr of at least one polybutadiene; from 40 to 70 phr of at least one carbon black; and, an adhesive system,wherein the at least one carbon black is a nanostructured carbon black with a specific surface area STSA accessible for rubber in accordance with ASTM D6556 of ≧ 80 m2/g.