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US 2010/0059082 A1Published application
Expanded PTFE Articles and Method of Making Same
AssigneeGore Enterprise Holdings, Inc.
InventorsDavid Isaac Lutz, Norman Ernest Clough
Life of this patent
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Abstract
Unique PTFE structures comprising islands of PTFE attached to an underlying expanded polytetrafluoroethylene (ePTFE) structure and to methods of making such structures is disclosed. The ePTFE material may or may not have been exposed to amorphous locking temperatures. These unique structures exhibit islands of PTFE attached to and raised above the expanded PTFE structures.
Claims10
An article comprising:
- a first PTFE material having a microstructure characterized by nodes interconnected by fibrils, and
- raised islands of a second PTFE material extending from the underlying first PTFE material,
- wherein said article is in the form of a dental floss.
A dental floss comprising a fluoropolymer, said dental floss having a drag resistance of at least 0.175.
An article comprising:
- a first, expanded PTFE material having an outer surface which defines a baseline, and
- raised islands comprising PTFE originating from the first, expanded PTFE material and extending above the baseline,
- wherein said article is in the form of a dental floss.
Dependencies are inferred from the claim text.