Fire protection element for sealing passage openings in components

Patent metadata

Field	Value
Publication number	US-12296205-B2
Application number	US-201917287597-A
Country	US
Kind code	B2
Filing date	Oct 23, 2019
Priority date	Oct 24, 2018
Publication date	May 13, 2025
Grant date	May 13, 2025

Abstract

A fire protection element containing a layered body can be utilized for sealing passage openings in components, such as building components, through which conduits are guided. A method can be used for producing the fire protection element. The fire protection element can be used for sealing passage openings and/or joints in components against fire and flue gases.

First claim

The invention claimed is:

1. A fire protection element, comprising:
at least one fire protection layer; and
at least one functional layer,
wherein the at least one fire protection layer comprises a carrier material and a number of particles of at least one layered, physically acting blowing agent,

the at least one functional layer has a temperature resistance up to at least 300° C.,
the at least one fire protection layer and the at least one functional layer are at least planarly firmly bonded to one another and wherein adjacent particles of the at least one layered, physically acting blowing agent are arranged substantially in parallel with one another over an entirety of the at least one fire protection layer,
the at least one functional layer comprises at least one semi-rigid material, and

said at least one functional layer is placed and/or pressed into a not-yet dried carrier material of said at least one fire protection layer and then said carrier material is cured by physical drying.

2. The fire protection element according to claim 1 , wherein the at least one layered, physically acting blowing agent is selected from a group consisting of graphite intercalation compounds, phyllosilicate intercalation compounds, and mixtures thereof.

3. The fire protection element according to claim 1 , wherein the at least one layered, physically acting blowing agent is embedded into the carrier material.

4. The fire protection element according to claim 1 , wherein the at least one layered, physically acting blowing agent is applied on one or more areas of a surface of the carrier material.

5. The fire protection element according to claim 1 , wherein the carrier material has a softening or decomposition point in the range of from 80° C. to 500° C.

6. The fire protection element according to claim 1 , wherein the at least one semi-rigid material is selected from a group consisting of fiber composite material, metal, metal alloys, and combinations thereof.

7. The fire protection element according to claim 1 , wherein the at least one semi-rigid material is formed as a film, as a perforated plate, as a mat, as a grid, or as a woven fabric.

8. The fire protection element according to claim 7 , wherein the at least one semi-rigid material is selected from a group consisting of expanded metal, glass fiber woven fabric, aluminum foil, and combinations thereof.

9. The fire protection element according to claim 1 , formed as a layered body comprising at least two fire protection layers and at least one functional layer arranged between the at least two fire protection layers.

10. The fire protection element according to claim 9 , wherein the at least two fire protection layers and the at least one functional layer arranged between the at least two fire protection layers are at least planarly firmly bonded to one another.

11. The fire protection element according to claim 1 , wherein one or more fire protection layers of the at least one fire protection layer and/or the at least one functional layer additionally comprise one or more intermediate layers.

12. The fire protection element according to claim 1 , wherein the at least one fire protection layer has a maximum average layer thickness of ≤10 mm.

13. The fire protection element according to claim 9 , wherein the layered body is strip-shaped.

14. A method for producing a fire protection element according to claim 1 , the method comprising:
i) providing a fire protection layer,
ii) providing a functional layer,
iii) connecting the fire protection layer to the functional layer, and
iv) establishing an at least planar firm bond between the fire protection layer and the functional layer.

15. A method for sealing passage openings and/or joints in components with a fire protection element against fire and flue gases, the method comprising:
expanding the fire protection element according to claim 1 to the passage openings and/or joints in components.

16. The fire protection element according to claim 4 , wherein the at least one layered, physically acting blowing agent is applied to an area on the surface of the carrier material that faces the at least one functional layer.

Assignees

• Hilti Ag

Inventors

• Ahlers Andreas
• Simon Sebastian
• Prem Ramona
• Willner Ralf
• Freudling Sarah

Classifications

• B32B2307/3065

  Flame resistant or retardant, fire resistant or retardant · CPC title

• B32B2264/108

  Carbon, e.g. graphite particles · CPC title

• B32B9/041

  of metal · CPC title

• B32B9/007

  comprising carbon, e.g. graphite, composite carbon · CPC title

• B32B3/266

  characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12 · CPC title