DRAWN POLY(ETHYLENETEREPHTHALATE) FIBER, POLY(ETHYLENETEREPHTHALATE) TIRE-CORD, THEIR PREPARATION METHOD AND TIRE COMPRISING THE SAME

摘要

The present invention relates to a PET tire cord, of which a shrinkage behavior index (SBI) defined by the following Calculation Formula 1 is 0.1 (g/d)/% or more under the conditions of the load of 0.0565 g/d and the temperature of 180°C: Shrinkage behavior index SBI = Shrinkage force g / d / Shrinkage rate % ,
to a method of preparing the same and to a pneumatic tire including the same.