- SELF-SUPPORTING PLEATABLE FIBROUS WEB ESPECIALLY USEFUL AS OIL FILTER MEDIA AND OIL FILTER COMPRISING THE SAME

摘要

The fibrous filter medium for high temperature oil filtration comprises at least about 15 weight percent of a nonwoven fibrous web containing a binder component selected from thermosetting binder resin and / or binder fibers, based on the total weight of the synthetic fibers and the nonwoven fibrous web . The synthetic fibers of the fibrous web may comprise from about 2% to about 65%, such as from about 10% to about 50% by weight, based on the total weight of fibers in the fibrous web, of thermoplastic synthetic microfibers having an average diameter of less than 5 [ Lt; / RTI The synthetic fibers are bonded to each other by a binder component to form a fibrous web capable of forming a self-supporting pleated oil filter media having pleats on contact with oil having a range of temperatures encountered in the internal combustion engine.