| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a novel copolymerization polyethylene naphthalate which is excellent in heat resistance, transparency, and oxygen barrier properties. <P>SOLUTION: A polyethylene naphthalate is formed by copolymerizing a tricyclo [5.2.1.0<SP POS="POST">2,6</SP>] decane dimethanol shown in formula (I). <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
