发明名称 |
FILTERMATTE. |
摘要 |
A fibrous filter mat of which all or a part of the fibers are coated totally or at least in part with a mixture of at least two dye components which are insoluble in one another, one of said components being fat- and/or oil-soluble and of a color which contrasts with that of the fiber blend and/or of the other component, the other component being fat- and/or oil-insoluble. The mat is especially suited for kitchen exhaust hoods since entrapment of fats and oils causes a color change as the oil-soluble dye dissolves and spreads out. |
申请公布号 |
NO146891(C) |
申请公布日期 |
1982.12.29 |
申请号 |
NO19790000264 |
申请日期 |
1979.01.26 |
申请人 |
FREUDENBERG, CARL, |
发明人 |
SCHULTHEISS, WOLFRAM,;HOFFMANN, HARALD, |
分类号 |
B01D39/16;B01D46/10;B01D46/44;F24C15/20;(IPC1-7):01D39/06;47J36/38 |
主分类号 |
B01D39/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|