Method for online estimation of reactor split for multimodal polyolefins
US6988022B2 · kind B2 · utility
21Cited by
10References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 13, 2004 |
| Grant date | Jan 17, 2006 |
| Priority date | — |
| Expiry date | Jul 8, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/905
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present method is directed to techniques for estimating and periodically controlling the reactor split of alpha-olefin polymerizations using multiple catalysts that selectively incorporate monomers and other reactants into polymer compositions. The method provides for the rapid determination of instantaneous reactor split and cumulative split in polymerization reactors by the use of a novel linear relationship between Incorporation and Reactor Split.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.