Self limiting catalyst composition with dicarboxylic acid ester internal donor and propylene polymerization process
US7381779B2 · kind B2 · utility
5Cited by
49References
16Claims
0Family size
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Key dates
| Filing date | Aug 18, 2004 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Aug 18, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more esters of aromatic dicarboxylic acid internal electron donors; one or more aluminum containing cocatalysts; and a mixture of two or more different selectivity control agents, said SCA mixture comprising from 1 to 99 percent of one or more esters of one or more aromatic monocarboxylic acids or substituted derivatives thereof, and from 99 to 1 percent of one or more alkoxysilane compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.