| 发明名称 |
MELT POLYMERIZATION REACTOR SYSTEM AND METHOD |
| 摘要 |
A reactor system for producing polycarbonate includes a surface area in contact with a reaction mixture. The reaction mixture comprises a melt transesterification catalyst, a dihydroxy compound, a diaryl carbonate, and an phenolic byproduct. The surface area in contact with the reaction mixture contains one or more welds joining reactor system parts. All welds in contact with the reaction mixture join reactor system parts made from the same type of metal. If a filler metal is contained in the weld, the filler metal is made from the same type of metal as the metal parts joined by the weld. |
| 申请公布号 |
US2016039971(A1) |
申请公布日期 |
2016.02.11 |
| 申请号 |
US201214239618 |
申请日期 |
2012.08.17 |
| 申请人 |
Fernandez Ignacio Vic;Garcia Agudo Jorge;Campman Maarten |
发明人 |
Fernandez Ignacio Vic;Garcia Agudo Jorge;Campman Maarten |
| 分类号 |
C08G64/06;B01J19/24 |
主分类号 |
C08G64/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A melt polymerization reactor system for producing polycarbonate, the reactor system comprising a surface area in contact with a reaction mixture, wherein:
(I) the reaction mixture comprises a melt transesterification catalyst, a dihydroxy compound, an ester-substituted diaryl carbonate, and an ester-substituted phenol, (II) the surface area in contact with the reaction mixture contains a weld joining metal reactor system parts, (III) all welds in contact with the reaction mixture join reactor system parts made from the same type of metal, and (IV) filler metal is contained in the weld, the filler metal is made from the same type of metal as the metal parts joined by the weld. |
| 地址 |
Santo Angel ES |
