Pneumatic vehicle tire

US9233578B2 · kind B2 · utility

Assignee

• Continental Reifen Deutschland GmbH · DE

Inventors

• Carla Recker · Hannover, DE
• Marc Kreye · Braunschweig, DE
• Thomas Kramer · Herford, DE
• Thorsten Torbruegge · Langenhagen, DE

Key dates

• Filing date: Feb 20, 2014
• Grant date: Jan 12, 2016
• Expiry date: Feb 20, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L61/12
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

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.