| 摘要 |
A filter element which is not causative of environmental pollution when discarded, can be easily produced, has improved pressure loss, and can be produced at a reduced cost. The filter element is characterized by comprisin g: a filter element base which comprises a permeable porous molding obtained fr om a synthetic resin powder, nonwoven fabric, or felt through heating/sintering ; and fine particles of ultrahigh-molecular polyethylene which have been packe d in surface pores of the base, have an average molecular weight of 3,000,000 to 11,000,000 and a bulk specific gravity of 0.15 to 0.29, are aggregates of primary particles, and have voids of 1 to 5 ~m at joints between primary particles.
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