Rubber composition, method of formulating and blending the same and article and tires made therefrom

US6242534A · 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: Jun 5, 2001
• Expiry date: Jul 30, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T152/10855
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A rubber mixture containing at least one rubber component, at least one filler, and conventional additives that it contain at least one first gel as a filler, which is essentially comprised of a rubber, has a particle size of 3.times.10.sup.-9 to 1.times.10.sup.-6 m, and has a swelling index in toluene of 1 to 15, and at least the surface of this gel has acid or base groups, where these groups have not been produced by means of reaction with dithiophosphoric acid, and comprises: a) at least one second gel as an additional filler, which is essentially comprised of a rubber, has a particle size of 3.times.10.sup.-9 to 1.times.10.sup.-6 m, and has a swelling index in toluene of 1 to 15, which is in a position to undergo a neutralization reaction with the acid or base groups of the first gel and/or b) contains at least one substance as an additional additive, which is capable of undergoing a neutralization reaction with the acid or base groups of at least one gel. The rubber mixture demonstrates an improved hysteresis behavior in the vulcanized state so that, with the use of this rubber mixture in tires, for example, the rolling resistance is reduced and the wet slippage behavior is im…