Use of a composite material based on a one component polyurethane adhesive

US8557389B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Manfred Genz · Ostercappeln, DE
• Hans U. Schmidt · Griesheim, DE
• Timo Prozeske · Stemshorn, DE
• Stefan Meyer · Ronneburg, DE
• Harald Roedel · Rehau, DE
• Norbert Strubel · Schifferstadt, DE
• Johann Goertz · Beindersheim, DE
• Frank Loewer · Haßloch, DE
• Karl-Heinz Koch · Castrop-Rauxel, DE
• Hasan Kuscu · Landau, DE

Key dates

• Filing date: Apr 26, 2010
• Grant date: Oct 15, 2013
• Expiry date: Sep 12, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31591
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to the use of a composite material having two or more superimposed layers of wood as a support element in structural engineering, nautical, vehicle and aircraft constructions, energy production systems, mining or in the production of furniture. The wood layers are joined together by means of a one component polyurethane adhesive containing a prepolymer with free NCO groups and the wood has a structure having a volume fraction of libriform fibers of between 50%-70%.