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FILTER MEDIUM AND FILTER UNIT
专利权人:
NITTO DENKO CORPORATION
发明人:
WADA Shiho
申请号:
US201615567722
公开号:
US2018104637(A1)
申请日:
2016.05.02
申请国别(地区):
美国
年份:
2018
代理人:
摘要:
A filter medium includes a first porous PTFE membrane, a first air-permeable support member, a second porous PTFE membrane, and a second air-permeable support member. A surface of the filter medium is formed by the first porous PTFE membrane. A bond strength, as measured by a 180° peel test, between the first porous PTFE membrane and the first air-permeable support member is higher than 1.2 N/25 mm. The first air-permeable support member is an embossed non-woven fabric having one or more recessed portions and one or more projecting portions. A ratio of the area of the recessed portion or the total area of the recessed portions to the area of the embossed non-woven fabric serving as the first air-permeable support member is more than 15%.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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