Preparation of a stable dispersion of melamine in polyol components

US6034146A · kind A · utility

Assignee

• BASF SE

Inventors

• Peter Falke · Schwarzheide, DE
• Regina Hendreich · Ortrand, DE
• Michael Reichelt · Ruhland, DE

Key dates

• Filing date: Aug 23, 1999
• Grant date: Mar 7, 2000
• Expiry date: Aug 23, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2110/0083
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A stable dispersion of melamine in polyol components comprising at least one relatively high molecular weight compound containing at least two reactive hydrogen atoms and, if desired, low molecular weight chain extenders and/or crosslinkers, blowing agents, catalysts, flame retardants and also further auxiliaries and/or additives is prepared by using the melamine in combination with at least one amine and at least one organic and/or modified organic isocyanate. Such a dispersion can be used for producing flame-resistant polyurethane foams.