Procatalyst composition with alkoxyalkyl 2-propenoate internal electron donor and polymer from same
US8536290B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Dec 21, 2010 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Aug 1, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein are catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present catalyst compositions contain an internal electron donor of an alkoxyalkyl 2-propenoate and optionally a mixed external electron donor. The present catalyst compositions improve catalyst selectivity and polymer stiffness. Polypropylene homopolymer produced from the present catalyst composition has a xylene solubles content less than 4 wt % and a TMF greater than 172.0° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.