Composite element having improved properties

US11806965B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Christof Grieser-Schmitz · Lemförde, DE
• Andre Kamm · Bohmte, DE

Key dates

• Filing date: Jan 25, 2019
• Grant date: Nov 7, 2023
• Expiry date: Feb 19, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2607/00
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The disclosure provides a composite element having a layer structure with 2 mm to 20 mm of metal, 10 mm to 100 mm of compact polyurethane formulation and another 2 mm to 20 mm of metal, a method of using thereof and corresponding production process therefor. The polyurethane formulation is obtainable by reacting (a) a compound having at least two isocyanate groups with (b) polyether polyol and the polyether polyol (b) is a mixture including at least the constituents of polyether polyol (b1) and polyether polyol (b2).