Method for the production of alicyclic polycarboxylic acid esters from partial esters of aromatic polycarboxylic acids

US7632961B2 · kind B2 · utility

Assignee

• OXENO OLEFINCHEMIE GMBH · DE

Inventors

• Wilfried Bueschken · Haltern, DE
• Michael Grass · Bend, US
• Alfred Kaizik · Marl, DE
• Dietrich Maschmeyer · Recklinghausen, DE
• Franz Nierlich · Marl, DE
• Axel Tuchlenski · Weinheim, DE

Key dates

• Filing date: Sep 14, 2002
• Grant date: Dec 15, 2009
• Expiry date: Jun 6, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/303
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing full esters of alicyclic polycarboxylic acids from partial esters of aromatic polycarboxylic acids by hydrogenation of the partial ester followed by esterification of this compound.