Production of fibre composite component part based on aluminium and polyurethane

US9902096B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Uwe Stapperfenne · Uerdingen, DE
• Sandra Reemers · Munster, DE
• Markus Hallack · Schermbeck, DE

Key dates

• Filing date: May 6, 2015
• Grant date: Feb 27, 2018
• Expiry date: Feb 6, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J2475/00
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A method of producing a fiber composite component part has the following steps: a) providing two or more metal sheets each comprising an aluminum material; b) providing at least one textile fabric; c) providing an anhydrous mixture having one or more than one hardener having a uretdione having an NCO functionality of not less than two, one or more than one binder having hydroxyl groups to an OH functionality of three to six, and one or more than one cobinder having oxirane groups; d) coating the textile fabric with the anhydrous mixture, to obtain a mixture-coated fabric; e) applying energy to the mixture-coated fabric for the purpose of performing a first crosslinking reaction to react hardener, binder and cobinder to form a thermoplastic polymer adhering to the textile fabric; f) hot pressing the metal sheets and the textile fabric together with the thermoplastic polymer adhering thereto into a sandwich such that the thermoplastic polymer joins the metal sheets together while enclosing the textile fabric; g) forming the sandwich into a shaped article; and h) heat treating the shaped article to obtain the fiber composite component part, wherein the thermoplastic polymer undergoes …