发明名称 |
Process for the production of polyester copolymers |
摘要 |
The invention is a process for esterifying organic dicarboxylic acid and diol at elevated temperatures and thereafter transesterifying the esterification product in the presence of a diol and a diester at elevated temperatures thereafter polymerizing the transesterification product in a condensation stage to form a polycondensed copolyester having an intrinsic viscosity from 0.2 to 0.9.
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申请公布号 |
US4435562(A) |
申请公布日期 |
1984.03.06 |
申请号 |
US19830492109 |
申请日期 |
1983.05.06 |
申请人 |
THE GOODYEAR TIRE & RUBBER COMPANY |
发明人 |
SULLIVAN, CARL M.;KELLEY, MELLIS M. |
分类号 |
C08G63/00;C08G63/78;(IPC1-7):C08G63/22 |
主分类号 |
C08G63/00 |
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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