发明名称 |
POLYTETRAFLUOROETHYLENE BLACK POROUS MEMBRANE, METHOD FOR PRODUCING SAME, AND BREATHABLE MEMBRANE AND BREATHABLE MATERIAL USING SAME |
摘要 |
Provided is a black porous polytetrafluoroethylene membrane including a porous polytetrafluoroethylene membrane dyed black. A whiteness of a principal face of the black porous polytetrafluoroethylene membrane as measured according to JIS L 1015 (Hunter method) is 18.0 to 23.0%, and the whiteness of the principal face falls within a range of 18.0 and 25.0% after heating at 350°C for 1 minute. This black porous PTFE membrane is suitable as a gas-permeable membrane that blocks entry of water and/or dust and that allows permeation of gases; specifically, the black porous PTFE membrane is suitable, for example, as a waterproof sound-transmitting membrane, a waterproof gas-permeable membrane, and a dustproof gas-permeable membrane. |
申请公布号 |
EP2881425(A1) |
申请公布日期 |
2015.06.10 |
申请号 |
EP20130825359 |
申请日期 |
2013.06.03 |
申请人 |
NITTO DENKO CORPORATION |
发明人 |
MORI, MASAAKI;HORIE, YURI |
分类号 |
C08J9/00;B01D39/16;B01D67/00;B01D69/02;B01D71/36;B29C55/00;B29C55/14;B29K27/18;B29K105/00;B29K105/04;B29L7/00;C08L27/18;D06P3/00;D06P7/00 |
主分类号 |
C08J9/00 |
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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