Catalyst systems for high melting thermoplastic elastomeric α-olefin polymers and plastomers

US6960550B2 · kind B2 · utility

Assignee

• The Board of Trustees of the Leland Stanford Junior University · US

Inventors

• Robert M. Waymouth · Palo Alto, US
• Raisa Kravchenko · Wilmington, US
• Larry L. Bendig · Houston, US
• Eric J. Moore · Naperville, US
• Charles L. Myers · Palatine, US
• Roger W. Quan · Vernon Hills, US
• Andreas Ernst · Worms, DE

Key dates

• Filing date: Mar 18, 2003
• Grant date: Nov 1, 2005
• Expiry date: Nov 16, 2023

Classification

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

Abstract

A metallocene catalyst system component for polymerization of olefins includes at least one 2-arylindenyl ligand substituted on the 1-position by a substituted or unsubstituted alkyl, alkylsilyl, or aryl substituent of 1 to 30 carbon atoms.