Fire-retardant edge material for panels, corresponding sandwich panel, and fire-retardant cover layer

Patent metadata

Field	Value
Publication number	US-9744746-B2
Application number	US-201414907434-A
Country	US
Kind code	B2
Filing date	Jul 15, 2014
Priority date	Jul 23, 2013
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

The invention relates to an edge material for panels, the edge material being constructed from a plurality of bonded layers. The edge material comprises a first layer, which is non-metallic, and a core layer, which is made of at least one metal layer. The edge material also comprises a second layer, which is non-metallic. Furthermore, the invention relates to a corresponding sandwich panel and to a corresponding cover layer for panels.

First claim

The invention claimed is:

1. An edge material for a panel, comprising:
a first layer,
wherein the first layer is non-metallic;
a core layer,
wherein the core layer is made of at least one metal layer; and
a second layer,
wherein the second layer is non-metallic,
wherein the core layer is arranged between the first layer and the second layer,
wherein the core layer is made of a first metal layer and a second metal layer,
wherein the first metal layer and the second metal layer are bonded directly together, and
wherein the edge material has a material thickness between 0.3 mm and 3.0 mm, and each of the first metal layer and the second metal layer has a thickness between 0.1 mm and 0.5 mm.

2. The edge material according to claim 1 ,
wherein each of the first metal layer and the second metal layer consists of aluminum or an aluminum base alloy.

3. The edge material according to claim 1 ,
wherein:
(i) the first layer consists of a composite material,
wherein the composite material has a percentage by mass of phenolic resin of at least 20%;
(ii) the second layer consists of a composite material,
wherein the composite material has a percentage by mass of phenolic resin of at least 20%; or
(iii) the first layer consists of a first composite material and the second layer consists of a second composite material,
wherein each of the first composite material and the second composite material has a percentage by mass of phenolic resin of at least 20%.

4. The edge material according to claim 1 ,
wherein:
(i) a metal or non-metal decorative layer is arranged on the first layer;
(ii) a metal or non-metal decorative layer is arranged on the second layer; or
(iii) a first metal or non-metal decorative layer is arranged on the first layer and a second metal or non-metal decorative layer is arranged on the second layer.

5. A sandwich panel, comprising:
a first cover ply,
wherein the first cover ply is made of a first cover material;
a second cover ply,
wherein the second cover ply is made of a second cover material;
a core material arranged between the first cover material of the first cover ply and the second cover material of the second cover ply;
at least one side edge,
wherein each side edge of the at least one side edge includes:
a first cover edge of the first cover ply;
a second cover edge of the second cover ply; and
a core edge of the core material that runs between the first cover edge of the first cover ply and the second cover edge of the second cover ply; and

an edge material according to claim 1 ,
wherein the edge material according to claim 1 is applied or bonded to a first side edge of the at least one side edge such that at least a first core edge of the core material of the first side edge of the at least one side edge is covered by the edge material according to claim 1 .

6. The sandwich panel according to claim 5 ,
wherein:
(i) the first cover material is the edge material according to claim 1 ;
(ii) the second cover material is the edge material according to claim 1 ; or
(iii) the first cover material and the second cover material are the edge material according to claim 1 .

7. A cover layer for panels,
wherein the cover layer is made of an edge material according to claim 1 .

8. The sandwich panel according to claim 5 , further comprising:
a first cover layer,
wherein the first cover layer covers the first cover ply, and
wherein the first cover layer is made of the edge material according to claim 1 .

9. The edge material according to claim 1 ,
wherein each of the first metal layer and the second metal layer consists of aluminum or an aluminum base alloy, and
wherein:
(i) the first layer consists of a composite material,
wherein the composite material has a percentage by mass of phenolic resin of at least 20%;
(ii) the second layer consists of a composite material,
wherein the composite material has a percentage by mass of phenolic resin of at least 20%; or
(iii) the first layer consists of a first composite material and the second layer consists of a second composite material,
wherein each of the first composite material and the second composite material has a percentage by mass of phenolic resin of at least 20%.

10. A sandwich panel, comprising:
a first cover ply,
wherein the first cover ply is made of a first cover material;
a second cover ply,
wherein the second cover ply is made of a second cover material;
a core material arranged between the first cover material of the first cover ply and the second cover material of the second cover ply,
wherein the core material has a honeycomb structure;
at least one side edge,
wherein each side edge of the at least one side edge includes:
a first cover edge of the first cover ply;
a second cover edge of the second cover ply; and
a core edge of the core material that runs between the first cover edge of the first cover ply and the second cover edge of the second cover ply; and

an edge material,
wherein the edge material is applied or bonded directly to a first side edge of the at least one side edge such that at least a first core edge of the core material of the first side edge of the at least one side edge is covered by the edge material, and
wherein the edge material comprises:
a first layer,
wherein the first layer is non-metallic;
a core layer,
wherein the core layer is made of at least one metal layer; and
a second layer,
wherein the second layer is non-metallic,
wherein the core layer is arranged between the first layer and the second layer,
wherein the core layer is made of a first metal layer and a second metal layer, and
wherein the first metal layer and the second metal layer are bonded directly together.

11. The sandwich panel according to claim 10 ,
wherein each of the first metal layer and the second metal layer consists of aluminum or an aluminum base alloy,
wherein:
(i) the first layer consists of a composite material,
wherein the composite material has a percentage by mass of phenolic resin of at least 20%;
(ii) the second layer consists of a composite material,
wherein the composite material has a percentage by mass of phenolic resin of at least 20%; or
(iii) the first layer consists of a first composite material and the second layer consists of a second composite material, and
wherein each of the first composite material and the second composite material has a percentage by mass of phenolic resin of at least 20%.

12. The sandwich panel according to claim 10 , further comprising:
a first cover layer,
wherein the first cover layer covers the first cover ply, and
wherein the cover layer is made of the edge material.

13. The sandwich panel according to claim 10 ,
wherein the first cover ply is made of the edge material.

14. A sandwich panel, comprising:
a cover ply,
wherein the cover ply is made of a cover material;
a cover layer; and
a core material arranged between the cover material of the cover ply and the cover layer,
wherein the cover layer comprises:
a first layer,
wherein the first layer is non-metallic;
a core layer,
wherein the core layer is made of at least one metal layer; and
a second layer,
wherein the second layer is non-metallic,
wherein the core layer is arranged between the first layer and the second layer,
wherein the core layer is made of a first metal layer and a second metal layer,
wherein the first metal layer and the second metal layer are bonded directly together, and
wherein each of the first metal layer and the second metal layer has a thickness between 0.1 mm

Assignees

• Lufthansa Technik Ag

Inventors

• Reifferscheid Moritz

Classifications

• B29L2031/608

  Honeycomb structures · CPC title

• B32B15/08

  of synthetic resin · CPC title

• B32B3/08

  characterised by added members at particular parts {(layer formed of separate pieces of material which are juxtaposed side-by-side B32B3/14, B32B3/18)} · CPC title

• B29L2009/003

  comprising a metal layer · CPC title

• B29C63/0026

  an edge face with strip material, e.g. a panel edge (securing a veneer strip to a panel edge B27D5/003) · CPC title