| 发明名称 |
TETRAFLUOROETHYLENE/PERFLUORO(ALKYL VINYL ETHER) COPOLYMER HAVING AN INCREASED MELTING TEMPERATURE |
| 摘要 |
A Process is provided comprising melt fabricating Tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer characterized by an MFR of no greater than 10 g/10 min and PPVE content of no greater than 5 wt % in to a final-shape article and heat aging said article at a temperature of at least 295° C. to increase the melting temperature of said tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer by at least 6° C. |
| 申请公布号 |
US2014308468(A1) |
申请公布日期 |
2014.10.16 |
| 申请号 |
US201214356403 |
申请日期 |
2012.11.20 |
| 申请人 |
E I DU PONT DE NEMOURS AND COMPANY |
发明人 |
Burch Heidi Elizabeth |
| 分类号 |
B29C35/02;H01B3/44;C08F14/26 |
主分类号 |
B29C35/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Process comprising providing melt-fabricable tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer having a melting temperature (Tm1), melt fabricating said tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer into a final-shape article, and heat aging said final-shape article at a temperature of at least 295° C. to obtain a melting temperature (Tm2) that is at least 6° C. greater than Tm1. |
| 地址 |
Wilmington DE US |
