Polyamines and their use in coating compositions

US5902897A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Christian Wamprecht · Neuss, DE
• Theodor Engbert · Recklinghausen, DE
• Holger Casselmann · Odenthal, DE
• Josef Pedain · Cologne, DE
• Jurgen Meixner · Krefeld, DE

Key dates

• Filing date: Jul 19, 1996
• Grant date: May 11, 1999
• Expiry date: Jul 19, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D179/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to polyamines which are prepared by reacting PA1 a) unsaturated oligoesters having an average of 2 to 4 double bonds per molecule and PA1 b) optionally other unsaturated compounds suitable as Michael addition acceptors and having an average of 1 to 4 double bonds per molecule with PA1 c) (cyclo)aliphatic diamines having two primary amino groups and PA1 d) optionally other amino-functional compounds suitable as Michael addition donors. The present invention also relates to the use of these polyamines as a binder component in lacquers and coating compositions, particularly as reactants for blocked polyisocyanates in one-component stoving lacquers.