| 发明名称 |
PREPARATION METHOD OF ORGANIC ZINC CATALYST AND POLY(ALKYLENE CARBONATE) RESIN |
| 摘要 |
The present invention relates to a preparation method of an organic zinc catalyst capable of preparing an organic zinc catalyst having a finer and more uniform particle size and more improved activity during a polymerization process for preparing a poly(alkylene carbonate) resin, and a preparation method of a poly(alkylene carbonate) resin using the organic zinc catalyst. The preparation method of an organic zinc catalyst includes reacting a zinc precursor and a dicarboxylic acid in the presence of a dispersant to form a zinc dicarboxylate-based catalyst, wherein a reaction step is performed under a condition at which the number of moles of the dicarboxylic acid present in a reaction system is larger than that of the zinc precursor throughout the entire reaction step. |
| 申请公布号 |
US2015361023(A1) |
申请公布日期 |
2015.12.17 |
| 申请号 |
US201514734856 |
申请日期 |
2015.06.09 |
| 申请人 |
LG CHEM, LTD. |
发明人 |
KIM Sung Kyoung;KANG Seong Kyun;LEE Jun Wye;PARK Seung Young;CHOI Hyeon |
| 分类号 |
C07C51/41;C08G64/34 |
主分类号 |
C07C51/41 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A preparation method of an organic zinc catalyst, the preparation method comprising reacting a zinc precursor surface-treated with a dispersant and a dicarboxylic acid having 3 to 20 carbon atoms to form a zinc dicarboxylate-based catalyst,
wherein a reaction step is performed under a condition at which the number of moles of the dicarboxylic acid present in a reaction system is larger than that of the zinc precursor throughout the entire reaction step. |
| 地址 |
Seoul KR |
