Patent · US Expired

Process for the preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine

US6437186B1 · kind B1 · utility

6Cited by

1References

21Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Daniel Ostgard · Kleinostheim, DE
Monika Berweiler · Maintal, DE
Stefan Röder · Koblenzer Straße, DE
Jorg Sauer · Rodenbach, DE
Bernd Jaeger · Emmelshausen, DE
Norbert Finke · Johannesweg, DE
Christian Lettmann · Coesfeld, DE

Key dates

Filing date	Dec 19, 2001
Grant date	Aug 20, 2002
Priority date	—
Expiry date	Dec 19, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2601/14
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Process for the preparation of isophorone diamine from isophorone nitrile, isophorone nitrilimine or mixtures containing isophorone nitrile and/or isophorone nitrilimine by hydrogenation through to amine in the presence of at least ammonia, hydrogen and a formed Raney hydrogenation catalyst based on cobalt, nickel, copper and/or iron, wherein the Raney catalyst is present in the form of hollow bodies.

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