Heat-curable compositions which are storage-stable at room temperature and are based on compounds having reactive hydrogen atoms and polyisocyanates

US4581432A · kind A · utility

Assignee

• BASF SE

Inventors

• Rainer Blum · Ludwigshafen, DE
• Frank Werner · Jackson, US
• Peter Horn · Heidelberg, DE
• Rolf Osterloh · Lechenich, DE
• Martin Welz · Bad Dürkheim, DE

Key dates

• Filing date: Nov 23, 1984
• Grant date: Apr 8, 1986
• Expiry date: Nov 23, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2115/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to compositions which are storage-stable at room temperature and which can be heat-cured to form molded parts having polyurethane, polyurea, and polyisocyanurate groups, said composition containing PA0 (a) one or more polyols having a molecular weight of from 400 to 10,000 and a functionality of from 2 to 8, PA0 (b) at least one polyfunctional compound having a molecular weight of 62 to 400 and being selected from the group consisting of aliphatic hydroxyl compound, cycloaliphatic hydroxyl compounds, aromatic amino compounds, or mixtures thereof, and PA0 (c) an organic polyisocyanate which is present in the form of discrete particles, which are deactivated on their surfaces and are dispersed in the liquid component, and depending on the product needs, PA0 (d) catalysts, PA0 (e) blowing agents, PA0 (f) reinforcing materials, and PA0 (g) auxiliaries and additives, The single-component systems are used for the preparation of cellular or noncellular, optionally reinforced polyurethane, polyurea, and/or polyisocyanurate group-containing molded parts.