Productivity catalysts and microstructure control
US7056996B2 · kind B2 · utility
1Cited by
24References
22Claims
0Family size
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Key dates
| Filing date | Aug 27, 2003 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Dec 15, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/847
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Improved Group 3–11 transition metal based catalysts and processes for the polymerization of olefins are described. Some of the ligands are characterized by a preferred substitution pattern which allows for higher productivities of highly branched olefins; substitution patterns which boost productivity or alter the polymer microstructure are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.