Solvent-free, two-component polyurethane adhesive systems

US5998538A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Walter Meckel · Neuss, DE
• Eduard Hansel · Wuppertal, DE
• Klaus Konig · Leverkusen, DE
• Otto Ganster · Odenthal, DE
• Jörg Büchner · Bensberg, DE

Key dates

• Filing date: Sep 16, 1993
• Grant date: Dec 7, 1999
• Expiry date: Sep 16, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/7621
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to solvent-free two-component polyurethane adhesive systems with high initial strengths and low levels of migration derived from a select reactants comprising a hydroxyl polyester and an isocyanate containing prepolymer.