Pneumatic vehicle tire
AssigneeContinental Reifen Deutschland GmbH
InventorsCarla Recker, Marc Kreye, Thomas Kramer, Thorsten Torbruegge
Life of this patent
Estimating the term…
Abstract
A pneumatic vehicle tire has a radial carcass, a sulfur-impregnated rubber mixture which contains 70 to 100 phr (parts per weight related to 100 parts per weight of the entire types of rubber in the mixture) of natural rubber, up to 30 phr of at least one polybutadiene, up to 15 phr of at least one soot, 20 to 100 phr of at least one silica, at least one silane coupling agent and one adhesive system. In order to lengthen the service life of the pneumatic vehicle tire, the rubber mixture is the carcass rubber coating and the silica has a CTAB number according to ASTM D 3765 of more than 100 m2/g.
Claims8
A pneumatic tire having a radial carcass made from a sulfur-crosslinked rubber mixture which comprises:
- 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 0 to 15 phr of at least one carbon black;
- from 20 to 100 phr of at least one silica;
- at least one silane coupling agent;
- and,
- an adhesive system,
- wherein the rubber mixture is a carcass rubber mixture and the silica has a CTAB number above 100 m2/g in accordance with ASTM D3765;
- and,
- wherein the rubber mixture comprises less than 15 phr of processing aid.
Dependencies are inferred from the claim text.