Process for the (co)polymerization of ethylene
US7678867B2 · kind B2 · utility
19Cited by
12References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 24, 2004 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Nov 24, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a broad molecular weight polyethylene carried out in the presence of a catalyst system comprising (i) a solid catalyst component comprising Mg, Ti, halogen, and optionally an internal electron donor compound, and (ii) an Al-alkyl cocatalyst said process comprising at least two step of polymerization (a) and (b), in which:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.