| 发明名称 |
A PROCESS FOR THE PRODUCTION OF CLEAR COPOLYESTERS OF TEREPHTHALIC ACID, NAPHTHALENEDICARBOXYLIC ACID AND ETHYLENE GLYCOL |
| 摘要 |
The present invention relates to a process comprising polymerizing repeat units derived from an acid component comprising terephthalic acid and naphthalenedicarboxylic acid and at least one glycol in the presence of less than about 10 ppm sodium carbonate and between about 10 and about 60 ppm phosphorus. Polyesters formed via the process of the present invention display surprisingly good clarity and color.
|
| 申请公布号 |
WO9838235(A1) |
申请公布日期 |
1998.09.03 |
| 申请号 |
WO1998US03945 |
申请日期 |
1998.02.27 |
| 申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
MAAG, MAUREEN, CLARE;BOWERS, DAVID, TAYLOR;STOOTS, ROBERT, LEWIS, JR. |
| 分类号 |
C08G63/183;C08G63/189;C08G63/82;C08G63/83;C08G63/87;(IPC1-7):C08G63/183;C08G63/199;C08K3/26;C08K5/49 |
主分类号 |
C08G63/183 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
