Sulfur-crosslinkable rubberizing mixture

US9217077B2 · kind B2 · utility

Assignee

• Continental Reifen Deutschland GmbH · DE

Inventors

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

Key dates

• Filing date: Feb 20, 2014
• Grant date: Dec 22, 2015
• Expiry date: Feb 20, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K2201/011
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

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.