发明名称 |
Zinc catalyst/additive system for the polymerization of epoxide monomers |
摘要 |
The present invention concerns a catalyst formulation comprising: (a) a Zn catalyst comprising a Zn compound having alcoholate ligand(s) derived from one or more polyols, and (b) a catalyst additive comprising a metal compound (i) having alcoholate ligand(s) derived from one or monohydric alcohol wherein the metal is selected from: (I) group 2 metals, preferably Mg, Ca, Sr, and Ba, more preferably Mg, (II) Li, and (III) combinations of at least two metals selected from (I) and (II). The present invention also relates to a process for polymerizing an epoxide monomer, preferably ethylene oxide, comprising carrying out the process in the presence of the catalyst formulation. |
申请公布号 |
US9624343(B2) |
申请公布日期 |
2017.04.18 |
申请号 |
US201415035407 |
申请日期 |
2014.11.18 |
申请人 |
Dow Global Technologies LLC |
发明人 |
Davis Anna V.;Nickias Peter N. |
分类号 |
C08G65/12;C08G65/26;C08G65/10;B01J31/02 |
主分类号 |
C08G65/12 |
代理机构 |
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代理人 |
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主权项 |
1. A catalyst formulation comprising:
(a) a Zn catalyst comprising a Zn compound having alcoholate ligand(s) derived from one or more polyols, and (b) a catalyst additive comprising a metal compound (i) having alcoholate ligand(s) derived from one or monohydric alcohol wherein the metal is selected from:
(I) group 2 metals,(II) Li, and(III) combinations of at least two metals selected from (I) and (II). |
地址 |
Midland MI US |