Pneumatic tires for commercial vehicles

US9034980B2 · kind B2 · utility

Assignee

• Continental Reifen Deutschland GmbH · DE

Inventors

• Carla Recker · Hannover, DE
• Philipp Koelle · Hannover, DE
• Thomas Kramer · Herford, DE
• Christoph Jocher · Storkow (Mark), DE
• Thorsten Torbruegge · Langenhagen, DE
• Fabian Dettmer · Braunschweig, DE
• Norbert Daldrup · Sachsenhagen, DE

Key dates

• Filing date: Apr 22, 2013
• Grant date: May 19, 2015
• Expiry date: Aug 14, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T152/10495
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A pneumatic tire for a commercial vehicle with a tread, wherein at least the part of the tread which comes into contact with the road contains a sulphur-vulcanized rubber mixture. The sulphur-vulcanized rubber mixture contains 90 to 50 phr (parts by weight, based on 100 parts by weight, of all of the rubbers in the mixture) of natural rubber, 10 to 50 phr of at least one polybutadiene having a glass transition temperature Tg of −110 to −65° C. and 5 to 50 phr of at least one aliphatic and/or aromatic hydrocarbon resin having a softening point (ring and ball to ASTM E 28) of 0 to 150° C., and a mean molecular weight Mn of less than 2000 g/mol and a polydispersity D=Mw/Mn of 1 to 5.