Laminates of improved edge stability

US5149574A · kind A · utility

Assignee

• BASF SE

Inventors

• Bernd Gross · Langenfeld, DE
• Heinz Weber · Uerdingen, DE
• Georg Schuon · Laupheim, DE

Key dates

• Filing date: Jan 9, 1991
• Grant date: Sep 22, 1992
• Expiry date: Jan 9, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/647
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Laminates of improved edge strength have a foam or honeycomb core layer A comprising a heat resistant plastic and cover layers B comprising fiber reinforced heat resistant plastic, at least one edge of the core layer being joined to a foam strip C of a heat resistant thermoplastic material whose density is higher than the density of the core.