Use of reactive amines for the preparation for polyurethane foams

US6576682B2 · kind B2 · utility

Assignee

• GOLDSCHMIDT HOLDING GMBH · DE

Inventors

• Oliver Eyrisch · Essen, DE
• Ralf Hoffmann
• Hans-Heinrich Schlons · Essen, DE

Key dates

• Filing date: Jun 18, 2001
• Grant date: Jun 10, 2003
• Expiry date: Jun 18, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2290/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing polyurethane foams (PUR foams) which uses reactive amines of the formula wheren is 1 to 4,R1 and R2 are—(CH2—CH2—O)xH,—(CH2—CH(CH3)—O)xH, or—((CH2—CH(CH2—CH3)—O)xH, andx is 0, 1, 2, 3 or 4,with the proviso that, at least one of the indices in the molecule is greater than 0, in combination with metal salts.