Composite elements containing compact polyisocyanate polyaddition products

US6770374B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Heike Wild · Olching, DE
• Hans-Juergen Reese · Olching, DE
• Georg Knoblauch · Birkenfeld, DE
• Thomas Bartz · Lynden, US
• Mathäus Rank · Olching, DE
• Heinz Forster · Wuppertal, DE

Key dates

• Filing date: Dec 5, 2000
• Grant date: Aug 3, 2004
• Expiry date: Dec 5, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31605
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Composite elements having the following layer structure:(i) 2-20 mm of metal,(ii) 10-100 mm of compact polyisocyanate polyaddition products obtainable by reacting (a) isocyanates with (b) polyether polyalcohols, if desired in the presence of (c) catalysts and/or (d) auxiliaries and/or additives,(iii) 2-20 mm of metal.