Patent ID: 8173741
Filing Date: 2012-05-08
Classification: B60C,C08F,C08K,C08L,Y02T

Abstract:
1. A rubber mixture, comprising: (A) at least one functionalized diene rubber having a polymer chain comprising repeat units based on 1,3-butadiene and styrene and functionalized using hydroxyl groups, carboxy groups, and/or salts thereof, wherein the 1,3-butadiene is present in an amount of from 40 to 100% by weight, the styrene is present in an amount of from 1 to 60%, and the proportion of bonded functional groups and/or salts thereof are from 0.02 to 5% by weight, all aforementioned weight based on the diene rubber, and (B) at least one XSBR-styrene/butadiene rubber gel comprising hydroxy groups in an amount of from 20 to 50 mg KOH/g and having a swelling index in toluene of from 1 to 25 and having a particle size of from 5 to 1000 nm; and (C) optionally, further rubbers, fillers and rubber auxiliaries.