Fireproofing strip

Abstract

Fireproofing device (1), in particular a fireproofing strip (1), with an elongate support (2), which is produced from a foam material, a non-woven fabric and/or a fibrous body and is provided with an impregnating agent. According to the invention this impregnating agent contains as components at least one liquid medium and a binder for binding solid components of the impregnating agent to the foam material and expandable graphite.

Claims

1. Fireproofing device, in particular a fireproofing strip with an elongate support, which is produced from a foam material and is provided with an impregnating agent, wherein this impregnating agent contains as components at least one liquid medium and a binder for binding solid components of the impregnating agent to the foam material and expandable graphite, wherein the foam material is squeezed and the strip has a delayed resilience.

2. Fireproofing device according to claim 1, wherein the impregnating agent has a phosphorus-containing compound.

3. Fireproofing device according to claim 1, wherein the foam material is a reticulated foam material.

4. Fireproofing device according to claim 1, wherein the foam material support has a cell size between 2000 m and 7000 m.

5. Fireproofing device according to claim 1, wherein the foam material support is penetrated at least partially by the impregnating agent.

6. Fireproofing device according to claim 1, wherein the binder is an acrylate binder.

7. Fireproofing device according to claim 1, wherein the impregnating agent contains as a phosphorus-containing compound a phosphate.

8. Fireproofing device according to claim 1, wherein the binder together with the expandable graphite and/or with ammonium polyphosphate forms an intumescent material.

9. Fireproofing device according to claim 1, wherein the impregnating agent has a proportion of water of between 40 and 60 parts per hundred parts, and/or a proportion of binder of between 25 and 35 parts and/or a proportion of expandable graphite of between 15 and 25 parts.

10. Fireproofing device according to claim 1, wherein the liquid medium is water or contains water and/or the liquid medium contains solvent.

11. Fireproofing device according to claim 1, wherein the foam material is a reticulated PU soft foam.

12. Fireproofing device according to claim 1, wherein the foam material support has a cell size between 3000 m and 6000 m.

13. Fireproofing device according to claim 1, wherein the foam material support has a cell size between 3400 m and 5600 m.

14. Fireproofing device according to claim 1, wherein the foam material support is penetrated completely by the impregnating agent.

15. Fireproofing device according to claim 1, wherein the impregnating agent contains as a phosphorus-containing compound a polyphosphate.

16. Fireproofing device according to claim 1, wherein the impregnating agent contains as a phosphorus-containing compound an ammonium polyphosphate.

17. Fireproofing device according to claim 1, wherein the liquid medium contains an organic solvent.

18. Method of producing a fireproofing strip providing a delayed resistence, comprising the steps of: providing a support made of a compressible foam material; impregnating this foam material with an impregnating agent, wherein this impregnating agent contains as components at least water and a binder for binding components of the impregnating agent to the foam material, expandable graphite as well as a phosphorus-containing compound; and squeezing and drying the impregnated foam material and thus firm bonding of components of the impregnating agent to the foam material.

Description

(1) In the drawings:

(2) FIG. 1 shows a representation of a fireproofing strip according to the invention.

(3) FIG. 1 shows a schematic representation of a fireproofing strip 1 according to the invention. In this case this fireproofing strip 1 extends along a lengthwise direction L and is preferably also rolled up in this lengthwise direction L. The reference sign B designates a width of the fireproofing strip. This is preferably between 10 mm and 150 mm, preferably between 20 mm and 100 mm.

(4) The reference H designates the height of the fireproofing strip. As explained above, in this vertical direction the fireproofing strip can be compressed and can be rolled up in this compressed state. The height H of the strip is smaller than the width B, preferably also in an expanded state.

(5) The reference 2 designates the support of the fireproofing device, which in particular is a PU soft foam support. As can be seen in the drawing, this support has a plurality of cells 6 in which expandable graphite (not shown) can be embedded. Furthermore, the support shown in the drawing is penetrated by an impregnating agent (not shown).

(6) The applicant reserves the right to claim all the features disclosed in the application documents as essential to the invention in so far as they are individually or in combination novel over the prior art. Furthermore it is pointed out that in the individual drawings features were also described which may be advantageous per se. The person skilled in the art recognises immediately that a specific feature described in a drawing may also be advantageous without the incorporation of further features from this drawing. Furthermore the person skilled in the art recognises that advantages may also result from a combination of several features shown in individual drawings or in different drawings.

LIST OF REFERENCE SIGNS

(7) 1 fireproofing device 2 support 6 cell L length of the fireproofing device B width of the fireproofing device H height of the fireproofing device