Films having a fibrillated surface and method of making
Assignee3M Innovative Properties Company
InventorsMario A. Perez, Sundaravel Damodaran, Michael D. Swan
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Abstract
Fibers and fibrillated articles are provided by imparting fluid energy to at least one surface of a highly oriented, voided, melt-processed polymeric film. The fibers and fibrillated articles are useful as tape backings, filters, thermal and acoustical insulation and as reinforcement fibers for polymers or cast building materials such as concrete.
Claims18
An oriented film comprising a melt-processed immiscible mixture comprising a semicrystalline polymer component and a void initiating component, said film having at least one microfibrillated surface, wherein said surface is microfibrillated by imparting sufficient fluid energy to at least one surface of said film.
Dependencies are inferred from the claim text.