Method and apparatus for forming elongate ptfe material and...

Details Method and apparatus for forming elongate ptfe material and... Method and apparatus for forming elongate ptfe material and...

B - Operations, Transporting

29

C

B29C 55/06 (2006.01) A61C 15/04 (2006.01)

Patent

CA 2201499

An elongate PTFE material is formed by passing an unsintered PTFE tape across a heated surface in sliding contact therewith while applying tension to the tape, such that the PTFE tape, when its temperature is raised by contact with the heated surface (8), is longitudinally stretched with simultaneous width and thickness reduction while in contact with the surface. PTFE tapes having different properties, e.g., coefficients of friction at opposite faces can be produced. Such tapes are suitable for use as dental flosses.

On obtient du PTFE (polytétrafluoroéthylène) de forme allongée en faisant défiler une bande de PTFE non frittée au contact d'une surface chauffée, tout en appliquant une tension à cette bande de façon que, lorsque sa température s'élève au contact de cette surface (8), elle soit étirée dans le sens longitudinal tout en subissant une réduction simultanée de largeur et d'épaisseur. On peut produire des bandes de PTFE présentant des propriétés différentes, c'est-à-dire des coefficients de friction différents sur leurs deux faces. Ces bandes conviennent pour une utilisation en tant que soie dentaire.

Affiliated with

Also associated with

Rating

Method and apparatus for forming elongate ptfe material and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for forming elongate ptfe material and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for forming elongate ptfe material and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1954536