×

Expanded PTFE floss material and method of making same

  • US 5,518,012 A
  • Filed: 06/15/1994
  • Issued: 05/21/1996
  • Est. Priority Date: 06/15/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. A dental floss having a length, width, and thickness, comprising:

  • a single expanded polytetrafluoroethylene (PTFE) fiber having a density of 1.0 to 1.9 g/cc and uniform dimensions of width and thickness along its length and having an outer surface of essentially rectangular to oblong cross-sectional dimension, the single fiber being without folds so that its outer surface is fully exposed;

    wherein the floss has essentially parallel exposed edges and the edges are resistant to fibrillation during use.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×