Filter medium for liquid filter and liquid filter
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United States of America Patent
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Dec 29, 2020
Grant Date -
Mar 7, 2019
app pub date -
Feb 20, 2017
filing date -
Mar 15, 2016
priority date (Note) -
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Abstract
The invention addresses the problem of providing a filter medium for a liquid filter, which has a low weight per unit and yet has high strength, high collectability, and a long life, and also a liquid filter. As a means for resolution, using a main fiber having a fiber diameter of 4.0 μm or less and an aspect ratio of 100 to 2,500 and a binder fiber having a fiber diameter of 3.0 μm or less and an aspect ratio of 100 to 2,500, a filter medium for a liquid filter in which the weight proportion of the binder fiber relative to the weight of the filter medium is 10 to 50 wt %, and the weight per unit is within a range of 5 to 80 g/m2, and also a liquid filter are obtained.
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