FINE FIBER PULP FROM SPINNING AND WET LAID FILTER MEDIA
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United States of America Patent
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Apr 18, 2017
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Apr 20, 2016
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Abstract
A material comprising a fine fiber pulp is provided. The fine fiber pulp has a plurality of fine fibers have an average diameter of less than 1 micron and an average length of less than 1 millimeter. In embodiments, the fine fibers formed of a polymer. The material can be created according to a method in which the fine fiber strands are formed from a polymer melt or a polymer solution, the fine fiber strands are cooled to a temperature of less than −25° C. to increase brittleness of the fine fibers, and the fine fiber strands are granulated into the fine fiber pulp.
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