Sandwich component and method for producing a sandwich component

Patent metadata

Field	Value
Publication number	US-10414116-B2
Application number	US-201514719774-A
Country	US
Kind code	B2
Filing date	May 22, 2015
Priority date	May 23, 2014
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

A sandwich component has a first cover layer, a second cover layer, and a core disposed therebetween. In the sandwich component, the cover layers are each formed from an outer layer made of a fiber-reinforced thermoplast material having greater resistance to a certain solvent and, fused therewith, an inner layer made of a thermoplast material having lower resistance to the solvent. The core has outer layers, each of which is formed from a thermoplast material having lower resistance to the solvent, and an inner structure, which is formed entirely or partially from a thermoplast material having greater resistance to the solvent. The inner layers of the cover layers were each fused with one of the outer layers of the core with the use of the solvent.

First claim

What is claimed is:

1. A sandwich component, comprising:
a first cover layer, a second cover layer, and a core disposed therebetween, wherein
the first and second cover layers are each formed from an outer layer made of a fiber-reinforced PEEK and, fused therewith, an inner layer made of PEI,
the core has outer layers each of which is formed from PEI, and an inner structure, which is formed entirely or partially from PEEK, and
the inner layers of the cover layers are each fused with one of the outer layers of the core with the use of an organic solvent.

2. The sandwich component according to claim 1 , wherein the core is a honeycomb core.

3. The sandwich component according to claim 2 , wherein the honeycomb core is a folded honeycomb structure.

Assignees

• Airbus Defence & Space Gmbh

Inventors

• Gruenewald Jonas
• Parlevliet Patricia
• Meer Thomas

Classifications

• B29K2679/085

  Thermoplastic polyimides, e.g. polyesterimides, PEI, i.e. polyetherimides or polyamideimides; Derivatives thereof · CPC title

• B29K2671/00

  Use of polyethers {, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone, or derivatives thereof,} for preformed parts, e.g. for inserts · CPC title

• B29K2079/085

  Thermoplastic polyimides, e.g. polyesterimides, PEI, i.e. polyetherimides, or polyamideimides; Derivatives thereof · CPC title

• B29K2071/00

  Use of polyethers {, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone or derivatives thereof}, as moulding material · CPC title

• B29C49/071

  Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties · CPC title