发明名称 |
FELT COMPOSITE |
摘要 |
A felt-layered composite of the following structure:… a. a first layer (1) of a predominantly horizontal coplanar superimposed layers of filamentary polytetrafluoroethylene components interrupted by occasional interlayered orientation;… b. a thin high density nonwoven layer (2) of fine glass staple fibres;… c. a scrim fabric (3) of polytetrafluoroethylene fibres and… d. a second predominantly horizontal coplanar superimposed layers (2) of filamentary polytetrafluoroethylene components interrupted by occasional interlayer orientation;… wherein the layers are mechanically bonded together by filamentary polytetrafluoroethylene components extending vertically throughout the composite and a process for making this composite; the composite is useful as a filter fabric and is primarily used for bag filters to remove fly ash from the gaseous combustion products of coal fired furnaces and boilers. |
申请公布号 |
AU542175(B2) |
申请公布日期 |
1985.02.07 |
申请号 |
AU19810078615 |
申请日期 |
1981.12.17 |
申请人 |
DU PONT DE NEMOURS, E.I. + CO. |
发明人 |
JOSEPH PATRICK FAGAN |
分类号 |
B01D39/14;B01D39/16;B01D39/20;B01D46/00;B32B5/26;B32B17/00;D04H13/00 |
主分类号 |
B01D39/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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