发明名称 |
PREPARATION OF POLYETHYLENE TEREPHTHALATE |
摘要 |
A process is disclosed for preparing polyethylene terephthalate having a predetermined intrinsic viscosity which involves the direct esterification of terephthallic acid with ethylene glycol followed by the polycondensation of the esterification product using a polycondensation catalyst system containing cobalt, manganese-, and antimony-containing components. |
申请公布号 |
ZA9003202(B) |
申请公布日期 |
1991.02.27 |
申请号 |
ZA19900003202 |
申请日期 |
1990.04.26 |
申请人 |
AMOCO CORPORATION |
发明人 |
DAVID EUGENE JAMES;LAWRENCE GRAHAM PACKER |
分类号 |
C08G63/181;C08G63/183;C08G63/189;C08G63/78;C08G63/82 |
主分类号 |
C08G63/181 |
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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