Process for the preparation of dodecamethylenebismelamine and the use thereof

US4730084A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Peter Werle · Gelnhausen, DE
• Holger Focke · Bruchköbel, DE
• Alwin Boes · Rodenbach, DE

Key dates

• Filing date: May 19, 1987
• Grant date: Mar 8, 1988
• Expiry date: May 19, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C45/86
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing dodecamethylenebismelamine (DMB) by reacting 2,4-diamino-6-chloro-1,3,5-triazine with 1,12-diaminododecane in an alkaline aqueous suspension, to which the diamine has been added in a water-miscible solvent. The product is used to stabilize aqueous formaldehye solutions.