Melamine based mannich-compounds and a process for obtaining the same

US8802848B2 · kind B2 · utility

Assignee

• Borealis Agrolinz Melamine GmbH · AT

Inventors

• René Dicke · Linz, AT
• Christoph Hahn · Linz, AT
• Martin Burger · Richmond, CA
• Andreas Endesfelder · Overath, DE
• Katarina Rot · Leonding, AT
• Clemens Schwarzinger · Wels, AT
• Klaus Bretterbauer · Linz, AT
• Heinrich Trischler · Eggersdorf bei Graz, AT
• Harald Schmidt · Nideggen, DE

Key dates

• Filing date: Nov 17, 2010
• Grant date: Aug 12, 2014
• Expiry date: Nov 29, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G12/32
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to Melamine based Mannich compounds of the general formulae (1)-(12) and a process for synthesizing melamine based Mannich-products comprising the steps of a) reacting at least one substituted melamine with at least one aldehyde, in particular formaldehyde, under basic conditions to form at least one OH-containing compound, b) reacting the at least one OH-containing compound in the presence of a catalyst to form at least one mannich-base, c1) reacting the at least one mannich-base with at least one enol-forming carbonyl compound, or c2) reacting the at least one mannich-base with at least one aromatic compound, and d) working up the reaction mixture. The invention relates further to precondensates obtainable from these products.