发明名称 |
METHOD OF POLYMERIZING DEIONIZED BIS-BETA-HYDROXYETHYL TEREPHTHALATE |
摘要 |
<p>A method of producing a polyester from high-purity bis- beta -hydroxyethyl terephthalate as a raw material containing cations and anions in trace amounts. Polyester production raw materials including bis- beta -hydroxyethyl terephthalate containing cations and anions in a total weight of not more than 50 ppm, ethylene glycol and antimony trioxide and/or germanium dioxide as a polymerization catalyst are heated without substantially distilling off ethylene glycol and then heated under reduced pressure to be polycondensed while ethylene glycol is distilled off.</p> |
申请公布号 |
EP1156069(A1) |
申请公布日期 |
2001.11.21 |
申请号 |
EP20000969853 |
申请日期 |
2000.10.18 |
申请人 |
AIES CO., LTD. |
发明人 |
INADA, SHUJI;SATO, KIKUCHI |
分类号 |
C08G63/183;C08G63/78;C08G63/86;(IPC1-7):C08G63/78 |
主分类号 |
C08G63/183 |
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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