3,4-polyisoprene-containing rubber blend mixtures for tire treads

US5104941A · kind A · utility

Assignee

• Huels Aktiengesellschaft · DE

Inventors

• Jurgen Wolpers · Bochum, DE
• Hans-Bernd Fuchs · Marl, DE
• Christoph Herrmann · Aachen, DE
• Walter Hellermann · Dorsten, DE
• Karl-Heinz Nordsiek

Key dates

• Filing date: Mar 20, 1991
• Grant date: Apr 14, 1992
• Expiry date: Mar 20, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S152/905
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Rubber mixtures for tire treads are found, which show an improved wet skid resistance coupled with balanced abrasion and rolling resistance properties. This is achieved by rubber blend mixtures which contain 3,4-polyisoprene having a 3,4-content from 55 to 75%, a glass transition temperature from 0.degree. to -25.degree. C., a number average molecular weight of 200,000 and higher and an inhomogeneity U of less than 1.8. Motor vehicle tires can be prepared in an advantageous manner with these rubber mixtures.