Fire-resistant foam, construction elements therefrom, system for fire-tight sealing of an opening, and method for sealing an opening in a wall
First Claim
1. A fire-resistant material comprising an elastomeric foam of cross-linked ethylene vinyl acetate (EVA) with a substantially closed cell structure, wherein the foam further comprises at least one crust-forming fire-retardant material and a pH neutralized graphite material, wherein the crust-forming fire-retardant material has been selected from poly ammonium phosphate and/or melamine phosphate, and wherein the crust-forming fire-retardant material is present in such an amount that a fire-retardant crust is formed on a side of the foam when directly exposed to high temperatures due to the presence of a fire, wherein the fire-retardant crust provides a shield against the effect of the fire.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a fire resistant material based on an elastomeric foam. The invention further comprises a system for sealing off, at least during a fire taking place adjacent the wall, in an at least virtually entirely fire-tight manner, an open extending through that wall through which a transporting device comprising for instance a cable, duct or pipe has been fed, the system being provided with elements manufactured from a fire resistant material which expands under the influence of temperature increase. In addition, the invention extends to a wall in which such a system has been incorporated and a method for scaling off an opening extending through a wall through which at least one transporting device such as a cable, duct or pipe has been fed.
81 Citations
12 Claims
- 1. A fire-resistant material comprising an elastomeric foam of cross-linked ethylene vinyl acetate (EVA) with a substantially closed cell structure, wherein the foam further comprises at least one crust-forming fire-retardant material and a pH neutralized graphite material, wherein the crust-forming fire-retardant material has been selected from poly ammonium phosphate and/or melamine phosphate, and wherein the crust-forming fire-retardant material is present in such an amount that a fire-retardant crust is formed on a side of the foam when directly exposed to high temperatures due to the presence of a fire, wherein the fire-retardant crust provides a shield against the effect of the fire.
- 4. A system for sealing off, at least during a fire taking place adjacent a wall, in at least one of a virtually entirely flame-tight manner and smoke-tight manner, an opening extending through this wall, through which a transporting device comprising at least one of a cable, duct and pipe has been fed, the system being provided with elements manufactured from a fire-resistant material which expands under the influence of temperature increase, wherein the elements are manufactured from a fire-resistant material comprising an elastomeric foam of cross-linked ethylene vinyl acetate (EVA) with a substantially closed cell structure, wherein the foam further comprises at least one crust-forming fire-retardant material and a pH neutralized graphite material, wherein the crust-forming fire retardant material has been selected from poly ammonium phosphate and/or melamine phosphate, and wherein the crust-forming fire-retardant material is present in such an amount that a fire-retardant crust is formed on a side of the foam when directly exposed to high temperatures due to the presence of a fire, wherein the fire-retardant crust provides a shield against the effect of the fire.
Specification