process for preparing rare earth carboxylate liquid compositions, process for preparing rare earth carboxylate liquids and method for polymerizing conjugated dienes.

摘要

Stable Rare Earth carboxylate liquids having high concentrations of Rare Earths and suitable for use in forming active Ziegler Natta catalysts, are prepared with stabilizing agents such as water and/or acid. The liquids comprise from about 4.5% to about 20% Rare Earth element(s). A novel process for making is disclosed.