发明名称 |
Process to prepare a polyester resin |
摘要 |
A process is disclosed to prepare a polyester resin having a predetermined acetaldehyde (AA) content whereby the IV of the melt phase resin is constrained to a certain range resulting in a longer SSP time to achieve a higher level of IV for the resin with an AA content of 1 PPM or less. The resultant resin can be transformed into a bottle preform, which, when blown, forms a bottle suitable for packaging of mineral water.
|
申请公布号 |
US6113997(A) |
申请公布日期 |
2000.09.05 |
申请号 |
US19990316347 |
申请日期 |
1999.05.21 |
申请人 |
SHELL OIL COMPANY |
发明人 |
MASSEY, FREDDIE LEE;TUNG, DEBORAH ANN SNELL;MARTIN-SHULTZ, MILLICENT LOUISE;DUH, BEN;KERN, JR., CHARLES LOUIS |
分类号 |
B29C49/00;C08G63/181;C08G63/183;C08G63/78;C08G63/80;(IPC1-7):B29D22/00;C08G63/16 |
主分类号 |
B29C49/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|