Method for preparing organic zinc catalyst, organic zinc catalyst prepared by the method and method for preparing polyalkylene carbonate resin using the catalyst
US11219887B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Aug 28, 2018 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Jun 1, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/48
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The disclosed relates to a method for preparing an organic zinc catalyst used in the synthesis of a polyalkylene carbonate resin, an organic zinc catalyst provided therefrom, and a method for preparing a polyalkylene carbonate resin using the catalyst. The organic zinc catalyst according to the present disclosure includes a predetermined amount of Zr on the surface through a simple process, and thus can exhibit improved catalytic activity as compared to a conventional catalyst in the polymerization process for preparing a polyalkylene carbonate resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.