| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyester tire cord that exhibits excellent uniformity, running stability and durability and is suitable for a tire with reduced rolling resistance, as well as a pneumatic tire employing it. SOLUTION: A tire cord comprises a polyester fiber, the polyester fiber comprises laminar nanoparticles having side lenths of 5-100 nm and an interlayer spacing of 1-5 nm, the laminar nanoparticle is composed of a compound comprising a metal element, especially at least one metal element selected from the group consisting of Zn, Mn, Co and Mg. The laminar nanoparticles are composed of a metal-phosphorus compound, and the phosphorus compound is a phenylphosphonic acid derivative. The polyester fiber employed for the tire cord is selected from the group consisting of ethylene terephthalate, ethylene 2,6-naphthalate, trimethylene terephthalate, trimethylene 2,6-naphthalate, butylene terephthalate and butylene 2,6-naphthalate. COPYRIGHT: (C)2011,JPO&INPIT |
