Rubber composition, method of adding and blending the composition and vehicle tire made from the composition

US6207757A · kind A · utility

Assignee

• Continental AG · DE

Inventors

• Werner Obrecht · Moers, DE
• Thomas Scholl · New Haven, US
• Peter Wendling · Leverkusen, DE
• Michael Well · Vechelde, DE
• Victor Monroy · Charlotte, US

Key dates

• Filing date: Jul 30, 1999
• Grant date: Mar 27, 2001
• Expiry date: Jul 30, 2019

Classification

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

Abstract

A rubber composition which contains a rubber mixture that can be vulcanized with a vulcanizing agent, which includes at least one rubber component, at least one filler having nucleophilic groups, gel particles comprising a rubber, having a particle size between about 3.times.10.sup.-9 and about 1.times.10.sup.-6 m and a swelling index in toluene of about 1 to about 15 and whose surface has electrophilic centers, and a substance acting as a coupling agent between the filler having nucleophilic groups and the additional filler, the substance acting as a coupling agent having the following structure: X--R.sub.1 --Si--(R.sub.2).sub.3, wherein X is a nucleophilic group, R.sub.1 is an alkyl group having up to about 6 carbon atoms or a phenyl group, and R.sub.2 may be the same as or different from each other and from R.sub.1 and is an alkyl or alkoxy group having up to 6 carbon atoms and at least one of R.sub.2 is an alkoxy group. The rubber composition has improved hysteresis behavior in the vulcanized state so that with the use of this rubber composition in tires, the rolling resistance is reduced and the wet slippage behavior is improved in relation to conventional rubber compositions.…