Siliceous-based polyurea compositions

US8785539B2 · kind B2 · utility

Assignee

• CONSTRUCTION RESEARCH & TECHNOLOGY GMBH · DE

Inventors

• Shane Oliver McDonnell · Val-de-Reuil, FR
• Christian Trieflinger · Altötting, DE
• Werner Temme · Meßkirch, DE
• Grzegorz Gomulka · Rheinfelden (Baden), DE
• Michael Melchart · Traunstein, DE
• Burkhard Walther · Taching am See, DE

Key dates

• Filing date: Jul 7, 2010
• Grant date: Jul 22, 2014
• Expiry date: Mar 27, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/91
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention provides siliceous-based polyurea compositions, obtainable by reacting isocyanates, alkali silicates and hydratable aluminosilicates. Moreover, the present invention provides a process for the manufacture of these compositions, comprising the steps of mixing a hydratable aluminosilicate with an aqueous silicate and reacting this mixture with a polyisocyanate and/or a polyisocyanate prepolymer, optionally in the presence of a polyol and/or with the inclusion of an inert filler. Finally, the present invention provides the use of these compositions in the fields of aviation, automotive assemblies, construction, consumer products, fire protection, furniture components, insulation, shipbuilding and/or windmill construction. The compositions obtainable according to the present invention are lightweight, high load bearing, flame retarding materials.