发明名称 |
Process for preparing poly(ester-carbonates) from dicarboxylic acid chlorides. |
摘要 |
<p>A process for poly(ester-carbonates) from dihydric phenols, especially bisphenol A; aromatic or cycloaliphatic dicarboxylic acids, especially terephthalic acid; and phosgene as carbonate precursor wherein a reaction of the acid and phosgene is carried out in a first stage forming dicarboxylic acid chloride; and then phosgene and bisphenol A are added in separate streams, simultaneously during most of the second or condensation stage. Thereby only one kettle is required for carrying out the complete polymer production.</p> |
申请公布号 |
EP0013761(A1) |
申请公布日期 |
1980.08.06 |
申请号 |
EP19790105397 |
申请日期 |
1979.12.28 |
申请人 |
ALLIED CORPORATION |
发明人 |
BAKER, JOSEFINA TECSON;COOKE, ROBERT SANDERSON;SIFNIADES, STYLIANOS |
分类号 |
C08G63/00;C08G63/64;(IPC1-7):08G63/64 |
主分类号 |
C08G63/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|