Metal-polyamide/polyethylene-metal laminate

US10166742B2 · kind B2 · utility

Assignees

• USINOR · FR
• THYSSEN KRUPP STAHL AG · DE

Inventors

• Antoine Gauriat · Bourg-la-Reine, FR
• Cedric Calvez · Villiers-sur-Marne, FR
• Francis Schmit · Ansacq, FR
• Cetin Nazikkol · Duisburg, DE
• Christoph Filthaut · Dortmund, DE
• Roland Herd Smith · Cergy, FR
• Jiri Pac · Brno, CZ

Key dates

• Filing date: Aug 4, 2004
• Grant date: Jan 1, 2019
• Expiry date: Sep 27, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31699
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention concerns a metal laminate comprising between two outer metal sheets an adhesive polymer layer, characterized in that the adhesive polymer layer comprises polyamide, a copolymer of ethylene and an unsaturated carboxylic acid and/or a derivative thereof and a reactive copolymer. The invention further concerns a process for the manufacture of such a metal laminate and the use of such metal laminates for the manufacture of automotive body parts.