To obtain a material showing a hysteresis action improved in a vulcanized state by formulating a gel having an electrophilic center on the surface and a material acting as a binder between a gel and a filler to a mixture containing a rubber component, the filler having a nucleophilic group on the surface and an additive.
A rubber mixture comprises practically a rubber wherein a particle size has 3×10-9-1×10-6 m and 1-15 of a swelling index in toluene. A gel having an electrophilic center uses a material acting as a binder represented as X-R1-Si-(R2)3. Wherein X is a nucleophilic group; R1 is a 1-6C straight chain a branched chain, a cyclic alkyl or phenyl; R2 is an alkyl and an alkoxy or only an alkoxy; and the carbon chain has carbon atoms up to 6 in total which may be either straight or branched chain. The case which contains the gel of 10-110 phr and silic acid of 10-110 phr at the standards of all mixture in the rubber is specifically preferable. If this mixture is used for tire, rolling resistance reduces.
SCHOLL THOMAS
WENDLING PETER
WELL MICHAEL DR
MONROY VICTOR DR
