Dental floss having low density and method of making same

Details Dental floss having low density and method of making same Dental floss having low density and method of making same

2006-06-13

2006-06-13

Edwards, N. (Department: 1774)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

C428S421000, C428S394000, C132S321000

Reexamination Certificate

active

07060354

ABSTRACT:
A dental floss comprising a porous PTFE fiber having a density of less than about 0.7 g/cc. The inventive floss is abrasion resistant, grippable and has a soft feel to the hands and a rough feel in the mouth. The floss is made by an extrusion process with non-contact heating during subsequent expansion with amorphous locking.

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