| 发明名称 | Surface-modified fluoropolymer membrane | ||
| 摘要 | A method for use in the manufacture of a filtration article includes providing a porous, fluoropolymer membrane, and applying a force to at least a portion of a first side surface of the membrane to modify the first side surface. The applied force may have a non-normal directional component relative to the first side surface. The surface modification may increase the density of the modified surface and/or reduce the porosity of the modified surface. Particle retention capabilities are thereby enhanced across the modified surface while maintaining permeability across the volume of the membrane. | ||
| 申请公布号 | US9427709(B2) | 申请公布日期 | 2016.08.30 |
| 申请号 | US201213624012 | 申请日期 | 2012.09.21 |
| 申请人 | W. L. Gore & Associates, Inc. | 发明人 | McClary Bradley Marshall;Poddar Tarun |
| 分类号 | D02J1/22;D02J1/06;B29C49/08;B01D67/00;B01D69/02;B01D71/32 | 主分类号 | D02J1/22 |
| 代理机构 | Kilpatrick Townsend & Stockton, LLP | 代理人 | Kilpatrick Townsend & Stockton, LLP |
| 主权项 | 1. A method for modifying a filtration article, comprising: providing a porous, fluoropolymer membrane; and, contacting a first side surface of said fluoropolymer membrane with a contact surface of a surface modification device to mechanically modify the first side surface; wherein said contact surface comprises at least one member selected from wovens, non-wovens, nets and knits; and wherein the contact surface applies a force having a non-normal directional component to at least a portion of the first side surface of said fluoropolymer membrane. | ||
| 地址 | Newark DE US | ||