Polyethylene terephthalate drawn yarn , polyethylene terephthalate tire cord , methods for their preparation and a tire including the same .

摘要

The present invention relates to a tire including the PET drawn yarn which can improve high speed running performance of the tire shape stability is excellent, PET tire cord, and manufacturing method thereof. When containing 90 mol% or more of PET, is fixed over the initial load of 0.01g / d, and allowed to stand for 24 hours under a load of 0.791g / d at 100 ℃, the PET drawn yarn creep rate I will be 5.5% or less. In addition, the PET code, when it is fixed over the initial load of 0.01g / d, and allowed to stand for 24 hours under a load of 0.791g / d at 100 ℃, the creep rate does not exceed 4.0% or less .