| 摘要 |
<p>A laminate product is provided. The laminate product includes a first layer of porous expanded polytetrafluoroethylene membrane, and a second layer of woven fabric of polytetrafluoroethylene containing yarn. The membrane preferably has an air permeability of at least 0.31 m (0.01 cfm/ft2) 124.5 Pa at (0.5 inch water gauge), and a thickness of greater than about 12.7 ν(0.5 mil). The woven fabric preferably has a weight of between 531 g/m2 (15 ospy) and about 1023 g/m2 (30 opsy). The laminate product can be sewn to provide a filter bag for use in pulse jet filter applications.</p> |
