| 发明名称 |
METHOD FOR PRODUCING POLYESTER |
| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyester which gives a bottle having a high clarity and exhibiting a good crystallization at the cap section and which hardly stains a metal mold when molded. SOLUTION: This polyester is produced by using a crystalline germanium dioxide having an alkali metal content of 100 ppm or lower as a polycondensation catalyst.
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| 申请公布号 |
JP2001233952(A) |
申请公布日期 |
2001.08.28 |
| 申请号 |
JP20000382277 |
申请日期 |
2000.12.15 |
| 申请人 |
TOYOBO CO LTD |
发明人 |
MATSUI YOSHINAO;SONODA HIROTOSHI;AZUMA MASAHIKO;KIMURA NOBUTAKE;ETO YOSHITAKA |
| 分类号 |
C08G63/85;C08G63/86;C08G63/88;C08G63/90;(IPC1-7):C08G63/85 |
主分类号 |
C08G63/85 |
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