Catalyst components, process for their preparation and their use as catalyst components in polymerization of olefins
US7176950B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2005 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Dec 12, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the preparation of a pyridinyl-linked bis-amino ligand that comprises, (a) reacting 2,6-dibromophenyl amine with an arylboronic acid component which is substituted or unsubstituted to produce a 2,6-diarylphenyl amine which is substituted or unsubstituted; (b) reacting the 2,6-diarylphenyl amine with a 2,6-dialkanoic pyridine characterized by the formula:wherein R′ and R″ are each independently a C1–C20 hydrocarbyl group; to produce a mono-imine ligand characterized by the formula:wherein TRP is a terphenyl group which is substituted or unsubstituted; and (c) reacting the mono-imine ligand with an aniline which may be substituted or unsubstituted to produce a bis-amine ligand characterized by the structure:wherein: TRP is a substituted or unsubstituted terphenyl group; and AR is a substituted or unsubstituted aryl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.