BALLISTIC MULTILAYER ARRANGEMENT

• US 20140208930A1
• Filed: 08/22/2012
• Published: 07/31/2014
• Est. Priority Date: 08/22/2011
• Status: Active Grant

• Current Assignee: RELION Protection Systems AG
• Original Assignee: RELION Protection Systems AG
• Inventors: Phillips, Roland
• Granted Patent: US 10,928,164 B2
• Time in Patent Office: Days
• US Class Current: 89/36.02
• CPC Class Codes: F41H 5/0407 Transparent bullet-proof laminatesinformative reference: layered products essentially comprising glass in general B32B17/06, e.g. B32B17/10009; manufacture or composition of glass, e.g. joining glass to glass C03; permanent multiple-glazing windows, e.g. with spacing therebetween, E06B3/66
• CPC Class Codes: F41H 5/0414 Layered armour containing ceramic material
• CPC Class Codes: F41H 5/0421 Ceramic layers in combination with metal layers
• CPC Class Codes: F41H 5/0428 Ceramic layers in combination with additional layers made of fibres, fabrics or plastics
• CPC Class Codes: F41H 5/0457 Metal layers in combination with additional layers made of fibres, fabrics or plastics
• CPC Class Codes: F41H 5/0471 Layered armour containing fibre- or fabric-reinforced layers in combination with ceramic layers F41H5/0428, with metal layers F41H5/0457
• CPC Class Codes: F41H 5/0478 Fibre- or fabric-reinforced layers in combination with plastics layers
• CPC Class Codes: F41H 5/0492 Layered armour containing hard elements, e.g. plates, spheres, rods, separated from each other, the elements being connected to a further flexible layer or being embedded in a plastics or an elastomer matrix

Abstract

The invention relates to a ballistic layer for a ballistic multilayer arrangement (1), wherein it is formed by an absorption layer (2, 2a, 2b) that entirely or largely comprises expanded glass (21) and by a ballistic multilayer arrangement (1) with an impact side (A) and a back side (B), wherein at least one of the layers is formed by such an absorption layer (2, 2a, 2b) that entirely or largely comprises expanded glass (21).

Claims

1. A ballistic layer for a ballistic multilayer arrangement, wherein it is formed by an absorption layer that entirely or largely comprises expanded glass.

2. The ballistic layer according to claim 1, wherein the expanded glass is present in the form of sintered expanded-glass granulate.

3. The ballistic layer according to claim 1, wherein the expanded glass is present in the form of expanded-glass granulate held in a dense packing or fill by means of a matrix that encloses the expanded-glass granulate.

4. The ballistic layer according to claim 1, wherein the expanded-glass granulate comprises a granulate size of 0.01 mm to 5 mm.

5. The ballistic layer according to claim 1, wherein the expanded glass or expanded-glass granulate predominantly comprises SiO₂.

7. The ballistic layer according to claim 1, wherein as further ingredients the expanded glass or expanded-glass granulate comprises a small amount, in each case below 10 percent weight by weight, of Al₂O₃ and/or MgO and/or K₂O.

10. A ballistic multilayer arrangement with an impact side (A) and a back side (B) and a ballistic layer according to claim 1, wherein at least one of the layers is formed by a multilayer fibre layer comprising layers of aramid fibres or comparable fibres, wherein said multilayer fibre layer is, in particular, designed in the form of a woven material or a multilayer woven material.

11. The ballistic multilayer arrangement according to claim 10, wherein at least one of the layers is formed by a plate comprising fine stone or natural stone or ceramic or a ceramic mix, in particular comprising a composite-structure material.

12. The ballistic multilayer arrangement according to claim 10, wherein at least one layer is a spall layer comprising spalls of ceramic or ceramic metal or fine stone or natural stone, which spalls are bound in a matrix.

13. The ballistic multilayer arrangement according to claim 10, wherein at least one layer is formed by a metal plate.

14. The ballistic multilayer arrangement according to claim 10, wherein at least one layer is formed by a highly tenacious synthetic layer.

15. The ballistic multilayer arrangement according to claim 14, wherein the highly tenacious synthetic layer forms the matrix of the absorption layer.

16. The ballistic multilayer arrangement according to claim 10, wherein said arrangement is surrounded by a synthetic cover layer or a fibre-reinforced synthetic braiding layer at least on one of the impact side (A) and the back side (B).

17. The ballistic multilayer arrangement according to claim 10, wherein in the layer sequence the absorption layer is followed at least on one of its sides by a fibre layer.

18. The ballistic multilayer arrangement according to claim 10, wherein the arrangement is designed so as to be flexible as a mat or a blanket.

19. The ballistic multilayer arrangement according to claim 10, wherein the arrangement is designed as a rigid plate.

20. The ballistic multilayer arrangement according to claim 10, wherein at least one fine stone layer, natural stone layer or ceramic layer, a fibre layer and a metal layer are provided.

21. The ballistic multilayer arrangement according to claim 10, wherein the layer sequence is selected as follows:

an enveloping layer,

a ceramic layer, in particular followed by a metal layer,

a fibre layer and an absorption layer sequence,

a metal layer.

6. The ballistic layer according to, wherein as further ingredients the expanded glass or expanded-glass granulate comprises Na₂O and CaO.

8. The ballistic layer according to, wherein the matrix comprises a synthetic material or a synthetic resin or a mixture of synthetic material/synthetic resin, which mixture is, in particular, impact-resistant.

9. The ballistic layer according to claim 8, wherein the synthetic material mixture comprises polyurethane and/or polyethylene and/or epoxy resin and/or silicon and/or an impact-proof synthetic material and/or an impact-resistant synthetic material.