Patent Number: 6,310,235

Title: Method for producing ester plasticizers

Abstract: The invention relates to an improved method for producing ester plasticizers by reacting di- or polycarboxylic acids or their anhydrides with alcohols in the presence of metal catalysts.

Inventors: Gick; Wilhelm (Duisburg, DE)

Assignee: Celanese GmbH

International Classification: C07C 67/00 (20060101); C07C 67/08 (20060101); C07C 067/08 ()

Expiration Date: 10/30/2018