Fused ring substituted indenyl metal complexes and polymerization process

US5965756A · kind A · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• Mark H. McAdon · Midland, US
• Jasson T. Patton · Midland, US
• Peter N. Nickias · Midland, US
• Ravi B. Shankar · Midland, US
• Francis J. Timmers · Midland, US
• Brian W. S. Kolthammer · Lake Jackson, US
• Daniel D. VanderLende · Sugar Land, US
• Steven M. Ueligger · Angleton, US

Key dates

• Filing date: Oct 14, 1997
• Grant date: Oct 12, 1999
• Expiry date: Oct 14, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/943
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Group 4 metal constrained geometry complexes comprising a fused ring indenyl derivative ligand, catalytic derivatives thereof, processes for preparing the same and their use as components of olefin polymerization catalysts are disclosed.