Bridged metallocene complex for olefin polymerization

US9815917B2 · kind B2 · utility

Assignee

• SAUDI BASIC INDUSTRIES CORPORATION · SA

Inventors

• Nedumbamana Sankaran · Bengaluru, IN
• Prashant Sukumar Shinge · Bengaluru, IN
• Sharankumar G. Shetty · Bengaluru, IN
• Girish Chandra · Kanchinakote, IN
• Haif Al-Shammari · Riyadh, SA
• Abdulaziz Hamad Al-Humydi · Riyadh, SA
• Edward J. Nesakumar · Bengaluru, IN
• Pradeep Nadkarni · Bengaluru, IN

Key dates

• Filing date: Aug 29, 2014
• Grant date: Nov 14, 2017
• Expiry date: Aug 29, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F4/65916
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a metallocene complex according to formula (1) wherein M is a metal selected from lanthanides or transition metals from group 3, 4, 5 or 6 of the Periodic System of the Elements, Q is an anionic ligand to M, k is the number of Q groups and equals the valence of M minus 2, Z1, Z2, Z3 and Z4 are identical or different and can be chosen from the group consisting of hydrogen and a hydrocarbon radical with 1-20 carbon atoms, and adjacent substituents Z can form a ring system together with the carbon atoms of the Cp ring to which they are bound.