| 摘要 |
<p>Disclosed herein is a polyethylene-2,6-naphthalate film suitable for magnetic recording tapes and, in particular, a polyethylene-2,6-naphthalate film suitable for a base film of high-density magnetic recording tapes, having a Young's modulus of not less than 800 kg/mm<Sup>2</Sup> in the machine direction (the longitudinal direction) and of not less than 600 kg/mm<Sup>2</Sup> in the transverse direction.</p> |
