Patent · US Expired

Polycyclic, fused ring compounds, metal complexes and polymerization process

US6613921B2 · kind B2 · utility

8Cited by
12References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 12, 2001
Grant dateSep 2, 2003
Priority date
Expiry dateOct 11, 2021

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S526/943
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Compounds and metal complexes comprising a polycyclic, fused ring ligand or inertly substituted derivative thereof having up to 60 atoms other than hydrogen, said ligand comprising at least: (1) a cyclopentadienyl ring, (2) a 6, 7, or 8 membered ring other than a 6-carbon aromatic ring, and (3) an aromatic ring, with the proviso that said 6, 7, or 8 membered ring (2), is fused to both the cyclopentadienyl ring (1), and the aromatic ring (3), polymerization catalysts, a process to prepare the novel compounds and complexes, and olefin polymerization processes using the same are disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.