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 |
EP2311628(A3) |
申请公布日期 |
2011.10.12 |
申请号 |
EP20110151632 |
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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代理人 |
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主权项 |
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地址 |
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