| 发明名称 |
MANUFACTURING PROCESS FOR POLYESTER FILM EXHIBITING LOW THERMAL SHRINKAGE |
| 摘要 |
A process in which a wound roll of biaxially oriented polyester film having a glass transition temperature (Tg (°C)) is annealed at a temperature T a (°C) above Tg where Tg < T a ‰¤ Tg + 100 (°C) for a time t after thermal equilibrium where 1 hour ‰¤ t ‰¤ 72 hours and cooled, for the purpose of improving the shrinkage of said polyester film. |
| 申请公布号 |
EP2001657(B1) |
申请公布日期 |
2012.05.30 |
| 申请号 |
EP20070712702 |
申请日期 |
2007.02.09 |
| 申请人 |
DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP |
发明人 |
MACKERRON, DUNCAN, HENRY;HASHIMOTO, KATSUYUKI |
| 分类号 |
B29C71/02;B32B27/36;C08J7/04 |
主分类号 |
B29C71/02 |
| 代理机构 |
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