Flame-retardant gas filter material having high dust storage capacity
AssigneeNeenah Gessner GmbH
InventorsAndreas Demmel, Werner Hoerl
Life of this patent
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Abstract
The invention relates to a filter material impregnated on one side with a binding agent that is in particular suited for gas filtration, wherein the filter material comprises a side that is not impregnated with a binding agent, which side contains a halogen-free and boron-free flame protection means. By means of the filter material according to the invention, a high separation rate and a high dust storage capacity are achieved, whereas the filter material is flame-retardant, and in the event of fire, does not release any toxic decomposition products. The invention further relates to a filter element comprising the filter material according to the invention.
Claims20
A filter material comprising at least one material selected from the group consisting of wet-laid nonwovens, dry-laid nonwovens and foams, wherein one side is impregnated with a binding agent throughout the entire surface area of the one side of the filter material, and an opposite side of the filter material is without a binding agent, wherein the opposite side contains a halogen-free and boron-free flame protection means, and wherein the filter material has a separation efficiency of at least 90% and a dust storage capacity of at least 1.0 g/200 cm3.
A filter material comprising at least one material selected from the group consisting of wet-laid nonwovens, dry-laid nonwovens and foams, wherein one side is impregnated with a binding agent throughout the entire surface area of the one side of the filter material, and an opposite side of the filter material is without a binding agent, wherein the opposite side contains a halogen-free and boron-free flame protection means, wherein the filter material is a monolayer, and wherein the filter material has a separation efficiency of at least 90% and a dust storage capacity of at least 1.0 g/200 cm3.
Dependencies are inferred from the claim text.