Process for the production of compression-molded materials containing polyisocyanate binders using latent, heat activatable catalysts

US4608407A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Dimitrios Kerimis · Cologne, DE
• Hanns P. Muller · Leverkusen, DE
• Manfred Kapps · Bensberg, DE

Key dates

• Filing date: Jul 19, 1984
• Grant date: Aug 26, 1986
• Expiry date: Jul 19, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L97/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention is directed to a process for the production of compression-molded materials by the compression molding lignocellulose-containing materials mixed and/or impregnated with polyisocyanates as binder in the presence of catalysts, the improvement wherein the catalysts used are latent, heat-activatable catalysts based on ammonium salts of the type which can be obtained by reacting PA0 (i) monofunctional or polyfunctional, primary, secondary and/or tertiary amines with PA0 (ii) alkyl esters of acids of phosphorus. or secondary and/or tertiary amines (i) with PA0 acidic alkylester of acids of phosporous (ii) under neutralization in substantially equivalent quantities.