Method of making a melt-blown filter medium for use in air...

Details Method of making a melt-blown filter medium for use in air... Method of making a melt-blown filter medium for use in air...

2005-08-23

2005-08-23

Smith, Duane (Department: 1724)

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

C264S006000, C264S013000, C264S165000, C264SDIG004, C055S385300, C055S521000, C055S527000, C055S528000, C055SDIG005

Reexamination Certificate

active

06932923

ABSTRACT:
The present invention involves using a melt-blowing process to make a filter medium defining pores having a pore size of between 3 and 12 microns. The filter medium is made of a thermoplastic polymer and is adapted for use in an internal combustion engine air filter. A profile is used in the melt-blowing process to mold melt blown fibers into the filter medium.

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