| 发明名称 |
Purification of polycarbonate solution |
| 摘要 |
Substantial depletion of pyridine hydrochloride from a polycarbonate reaction solution is accomplished in a non-aqueous system by dialyzing the polycarbonate solution against a sweep solvent in a permeability separatory unit.
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| 申请公布号 |
US4078999(A) |
申请公布日期 |
1978.03.14 |
| 申请号 |
US19760737810 |
申请日期 |
1976.11.01 |
| 申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
PANNELL, CALVIN E. |
| 分类号 |
C08G64/40;(IPC1-7):B01D11/00 |
主分类号 |
C08G64/40 |
| 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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