Coordination polymerization catalyst

Abstract

Abstract A COORDINATION CATALYST FOR POLYMERIZING OLEFINS, DIOLEFINS AND ALKYLENE OXIDES, CONSISTING ESSENTIALLY OF (A) AN IRON COMPLEX COMPRISING A LIGAND CONTAINING OXYGEN DONOR ATOMS AND SELECTED FROM THE GROUP CONSISTING OF IRON ACETYLACETONATE, IRON OCTOATE AND IRON NAPHTHENATE; (B) A TRIALKYL ALUMINUM COMPOUND; AND (C) A BIDENATE LIGAND CAPABLE OF BOTH PI AND SIGMA BONDING TO FORM A FIVE- OR SIX-MEMBERED CHELATE RING, SAID LIGAND BEING CHARACTERIZED BY THE STRUCTURAL FORMULA ((R)Y-PYRID-2-YL)-(C(-R)2)X-C(-R)M=N-(Q)M WHEREIN M IS A NUMBER FROM 0 TO 1, X IS A NUMBER FROM 0 TO 1, Y IS A NUMBER FROM 0 TO ABOUT 4, R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL, ARYL, HALOGEN, HYDROXYL, AND ACETOXY, AND Q IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL, HALOGEN, HYDROXYL AND ACETOXY, THE MAJOR PORTION OF SAID SIGMA BONDING BEING ATTRIBUTABLE TO THE RING NITROGEN, WHEREIN THE MOLAR RATIO OF TRIALKYL ALUMINUM COMPOUND TO IRON COMPLEX IS FROM ABOUT 1/1 TO 4/1 AND THE MOLAR RATIO OF BIDENTATE LIGAND TO THE IRON COMPLEX IS FROM ABOUT 0.1/1 TO ABOUT 2.5/1.

Inventors

• 👤 John E Dozik
• 👤 Harold E Swift
• 👤 Ching-Yong Wu

Bibliographic Details