Title:
分岐ポリカーボネートの製造方法
Document Type and Number:
Japanese Patent JP4690320
Kind Code:
B2
Abstract:
The present invention is a process for producing branched polycarbonate providing for optimum utilization of the branching agent. It was surprisingly found that adding at least a portion of the coupling catalyst to the polymerization at a point during the oligomerization in the reaction results in a higher degree of branching and improved rheological properties.
More Like This:
Inventors:
Rohde, Susan
Erbert, Barnhard
Erbert, Barnhard
Application Number:
JP2006521085A
Publication Date:
June 01, 2011
Filing Date:
June 29, 2004
Export Citation:
Assignee:
Dow Global Technologies Inc.
International Classes:
C08G64/20; C08G64/14; C08G64/24
Domestic Patent References:
| JP7165901A | ||||
| JP2000186136A | ||||
| JP6336522A |
Attorney, Agent or Firm:
Takehiko Saito
Yasuyuki Hata
Yasuyuki Hata