| 发明名称 |
YIELD OPTIMIZATION OF POLYCARBONATE POLYOLS |
| 摘要 |
Embodiments of the invention provide for methods of producing a polycarbonate polyol. The method includes charging a vessel with butanediol, charging the vessel with a polymerization catalyst, and adding to the vessel dimethyl carbonate at a rate of at least 2.0 g of DMC per minute per kg of BDO to produce polycarbonate polyol at a polycarbonate polyol yield of at least 80% of a theoretical yield. |
| 申请公布号 |
US2015025217(A1) |
申请公布日期 |
2015.01.22 |
| 申请号 |
US201314379576 |
申请日期 |
2013.03.13 |
| 申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
Heath William H.;Singh Harpreet;Singh Amarnath;Jimenez Jorge;Xu Qiuyun |
| 分类号 |
C08G64/30 |
主分类号 |
C08G64/30 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for producing a polycarbonate polyol, the method comprising:
charging a vessel with butanediol (BDO); charging the vessel with a polymerization catalyst; and adding to the vessel dimethyl carbonate (DMC) at a rate of at least 2.0 g of DMC per minute per kg of BDO to produce polycarbonate polyol at a polycarbonate polyol yield of at least 80% of a theoretical yield. |
| 地址 |
Midland MI US |
