| 发明名称 |
Process for preparing catalyst-free polyester |
| 摘要 |
{PG,1 The invention relates to a process for preparing high molecular weight polyester resin by reacting ethylene glycol with terephthalic acid in the absence of a catalyst and polymerizing the product under solid state polymerization conditions to form high molecular weight polyester.
|
| 申请公布号 |
US4150215(A) |
申请公布日期 |
1979.04.17 |
| 申请号 |
US19780919889 |
申请日期 |
1978.06.28 |
| 申请人 |
THE GOODYEAR TIRE & RUBBER COMPANY |
发明人 |
KELLEY, MELLIS M. |
| 分类号 |
C08G63/00;C08G63/78;C08G63/80;(IPC1-7):C08G63/26 |
主分类号 |
C08G63/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
