Patent · US Active

Alicyclic polycarboxylic ester mixtures with a high trans proportion and method for the production thereof

US8044229B2 · kind B2 · utility

3Cited by

7References

21Claims

0Family size

Assignee

Evonik Oxeno GmbH · DE

Inventors

Dietrich Maschmeyer · Recklinghausen, DE
Wilfried Bueschken · Haltern, DE
Michael Grass · Bend, US
Axel Tuchlenski · Weinheim, DE

Key dates

Filing date	Sep 3, 2002
Grant date	Oct 25, 2011
Priority date	—
Expiry date	Jul 5, 2026

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/303
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to the preparation of alicyclic polycarboxylic esters by ring-hydrogenation of the corresponding aromatic polycarboxylic esters on a catalyst which comprises at least one metal from the triad iron, cobalt, nickel, and at least one metal of the IInd, IIIrd, IVth, Vth, and/or VIth transition group of the Periodic Table.An alicyclic carboxylic ester mixture with a proportion above 10 mol % of the trans isomers.The use of the alicyclic polycarboxylic ester mixtures.Mixtures made from plastics and from alicyclic polycarboxylic ester mixtures.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.