Patent ID: 6207757
Filing Date: 2001-03-27
Classification: B60C,C08K,C08L,Y02T,Y10T

Abstract:
A composition comprising a rubber mixture that can be vulcanized with a vulcanizing agent, which comprisesa) at least one rubber component,b) at least one filler having nucleophilic groups,c) as an additional filler, 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,d) 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.3whereinX is a nucleophilic group,R.sub.1 is an alkyl group having up to about 6 carbon atoms or a phenyl group, andR.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.