Composition of emulsion styrene butadiene rubber and Tire manufactured with the emulsion.

摘要

Emulsion styrene butadiene rubber (SBR) that can be used to produce formulations for treads of Tyre Rolling Resistance and have characteristics ofWear of the belt are similar to those made with the solution SBR but with better characteristics of Traction.In this way,The SBR emulsion of the invention is superior in many ways for use in tire Tread compounds to the conventional Solution SBR and conventional emulsion SBR.More specifically this Invention reveals a Composition of styrene butadiene rubber is composed of repeating units that are derived from styrene and 13 - butadieneWhere the composition of styrene butadiene rubber has a Number Average Molecular weight as determined by the Thermal Field Flow Fractionation is within dThe margin of about 50 to 150.000, where styrene butadiene rubber presents a Light Scattering in the reason of refractive index which is within the range of 1.8 to 3.9.This Invention also reveals a Composition of styrene butadiene rubber which comprises Repeat units derived from styrene and butadiene are 1.3,Where a diagram of frequency versus Log Storage modules of the composition of styrene butadiene rubber Crosses through a diagram of frequency versus mod RecordsLoss angle of the composition of styrene butadiene rubber at a frequency of registration within the margin of 0.001.