C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 21/00 (2006.01) B60C 1/00 (2006.01) C08L 19/00 (2006.01) C08L 51/04 (2006.01)
Patent
CA 2279220
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 3x10 -9 to 1x10 -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 dithiophosphonic 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 3x10 -9 to 1x10 -6, 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 thin rubber mixture in tires, for example, the rolling resistance is reduced and the wet slippage behavior is improved in relation to the conventional rubber mixture. Methods of formulating such rubber mixtures are also provided.
Monroy Victor
Obrecht Werner
Scholl Thomas
Well Michael
Wendling Peter
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Continental Aktiengesellschaft
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