Process for the production of storage-stable polyurethane prepregs and mouldings produced therefrom from dissolved polyurethane composition

US10029427B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Friedrich Georg Schmidt · Haltern am See, DE
• Rainer Lomoelder · Munster, DE
• Martina Ortelt · Flein, DE
• Britta Kohlstruk · Gladbeck, DE
• Emmanouil Spyrou · Schermbeck, DE
• Holger Loesch · Herne, DE
• Dirk Fuchsmann · Haltern am See, DE

Key dates

• Filing date: May 30, 2011
• Grant date: Jul 24, 2018
• Expiry date: Dec 11, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/20
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a method for producing storage-stable polyurethane prepregs and molding bodies produced therefrom (composite components), which can be obtained by a method using a polyurethane composition in solution and by impregnation of fiber-reinforced materials such as of woven fabrics and laid scrim using reactive polyurethane compositions.