| 发明名称 |
TRANSESTERIFICATION PROCESS USING LANTHANUM COMPOUND CATALYSTS |
| 摘要 |
This invention relates to an improved transesterification process for the preparation of bis(3-hydroxypropyl) terephthalate monomer from 1,3-propanedi ol and a dialkyl terephthalate using a lanthanum compound transesterification catalyst.
|
| 申请公布号 |
CA2322281(C) |
申请公布日期 |
2003.12.09 |
| 申请号 |
CA19992322281 |
申请日期 |
1999.03.16 |
| 申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
LIANG, YUANFENG;KURIAN, JOSEPH VARAPADAVIL |
| 分类号 |
B01J31/22;C07B61/00;C07C67/03;C07C69/82;(IPC1-7):C07C67/03 |
主分类号 |
B01J31/22 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
