Storage-stable tris(hydroxyalkyl)isocyanurate polyol dispersions, process for their preparation and their utilization

US4514526A · kind A · utility

Assignee

• BASF SE

Inventors

• Matthias Marx · Fürstenfeldbruck, DE
• Helmut Ganss · Ludwigshafen, DE
• Wolfram Frank · Heidelberg, DE

Key dates

• Filing date: Jul 23, 1984
• Grant date: Apr 30, 1985
• Expiry date: Jul 23, 2004

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S516/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to storage-stable tris(hydroxyalkyl)isocyanurate polyol dispersions containing PA0 (a) from 2 to 70 parts by weight tris(hydroxyalkyl)isocyanurate, PA0 (b) from 98 to 30 parts by weight of at least one polyol having a functionality of from 2 to 8 and a hydroxyl number from 20 to 1800, and PA0 (c) from 0 to 20 parts by weight of one or more dispersion stabilizers. The dispersions are prepared by dissolving starting components A and B at temperatures in excess of 100.degree. C., in some cases adding a dispersion stabilizer and/or crystallization accelerator, with continuous and step-wise cooling of the mixture while stirring. The products are utilized for the preparation of polyurethane plastics, in particular polyisocyanurate foams containing polyurethane or polyurethane groups.