Rubber mixture with improved abrasion

US8227538B2 · kind B2 · utility

Assignee

• Continental AG · DE

Inventors

• William Michael York · Concord, US
• Carla Recker · Hannover, DE
• Katharina Herzog · Harsum, DE
• Hajo Weinreich · Hessisch Oldendorf, DE
• Boris Mergell · Barsinghausen, DE
• Viktoriya Tkachenko · Hannover, DE
• Norbert Mueller · Ostseebad Nienhagen, DE
• Juergen Wagemann · Bad Salzdetfurth, DE

Key dates

• Filing date: Jun 5, 2008
• Grant date: Jul 24, 2012
• Expiry date: Jun 16, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/548
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A rubber mixture with improved abrasion with improved abrasion performance, in particular for pneumatic tires, has the following composition: from 30 to 100 phr of at least one diene rubber; from 0.1 to 10 phr of at least one vulcanization accelerator selected from the group consisting of: thiazole accelerators, mercapto accelerators, sulfenamide accelerators, guanidine accelerators, thiuram accelerators, dithiocarbamate accelerators, amine accelerators, thioureas, and/or other accelerators; and a vulcanization system of sulfur comprising elemental sulfur, sulfur donor and silane between 0.25 and 0.08 moles per 100 parts by weight of the rubber elastometer, whereby the free sulfur contributes in the range of 0 to 70%, the sulfur donor contributes in the range of 5 to 30%, and the silane contributes in the range of 20 to 95%.