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US 6,110,588 AGranted
Microfibers and method of making
Assignee3M Innovative Properties Company
InventorsMario A. Perez, Michael D. Swan, John W. Louks
Life of this patent
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Abstract
Microfibers and microfibrillated articles are provided by imparting fluid energy to a surface of a highly oriented, highly crystalline, melt-processed polymeric film. The microfibers and microfibrillated articles are useful as tape backings, filters, thermal and acoustical insulation and as reinforcement fibers for polymers or cast building materials such as concrete.
Claims10
Melt processed polymeric microfibers having an average effective diameter of less than 20 microns and a transverse aspect ratio of from 1.5:1 to 20:1.
Dependencies are inferred from the claim text.