The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2001
Filed:
Jul. 30, 1999
Werner Obrecht, Moers, DE;
Thomas Scholl, Bergisch Gladbach, DE;
Peter Wendling, Leverkusen, DE;
Michael Well, Vechelde, DE;
Victor Monroy, Charlotte, NC (US);
Continental Aktiengesellschaft, Hannover, DE;
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 3×10,and about 1×10,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,—Si—(R,),, wherein X is a nucleophilic group, R,is an alkyl group having up to about 6 carbon atoms or a phenyl group, and R,may be the same as or different from each other and from R,and is an alkyl or alkoxy group having up to 6 carbon atoms and at least one of R,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. A method of adding and blending the rubber composition as well as a composition useful for tire treads and vehicle tires containing the composition are disclosed.