| 摘要 |
The present invention relates to a filter material having increased dust filtration efficiency, characterized in that the surfaces of the joints of the filter material comprise at least partially molecules or molecular groups, cross-linked or non-cross-linked, having hydrophobic properties, and a method for producing filter material having increased dust filtration efficiency, characterized in that a liquid comprising or being at least one fluoroalkylsilane of the formula CmF2m+1 CnH2nSi(OR)3, at least one alkylsilane of the formula CkH2k+1Si(OR')3, or a mixture of said compounds, is applied to the filter material and subsequently dried. |
