Polyurethane-based sealing and adhesive compositions containing special diurethane plasticizers

US5525654A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Tore Podola · Monheim, DE
• Martin Majolo · Erkelenz, DE
• Winfried Emmerling · Neuss, DE
• Lothar Unger · Erkrath, DE

Key dates

• Filing date: Sep 16, 1994
• Grant date: Jun 11, 1996
• Expiry date: Sep 16, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S524/912
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Described are moisture-curing sealing and/or adhesive compositions based on alkoxysilane-terminated polyurethanes and containing diurethanes as plasticizers. The diurethanes are prepared either from diol mixtures and mono-functional isocyanates, reacting with substantially all the free hydroxyl groups, or from diisocyanates and mono-functional alcohols, reacting with substantially all the free isocyanate groups. Also described is a method of preparing the moisture-curing sealing and/or adhesive compositions and their use as joint sealants.