B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 69/00 (2006.01) B26F 1/02 (2006.01) B26F 1/18 (2006.01) B26F 1/24 (2006.01) B29C 55/00 (2006.01) B29C 55/02 (2006.01) B29D 28/00 (2006.01)
Patent
CA 2155324
A macroscopically perforated porous expanded polytetrafluoroethylene sheet material having a microstructure of nodes interconnected by fibrils wherein the perforations have a minimum diameter of about 0.1 mm and wherein the orientation of a fibril varies as a function of the proximity of a fibril to the edge of a perforation. The length of the fibrils may also vary as a function of the proximity of a fibril to the edge of a perforation. The sheet material may be provided in a tubular form.
Cette invention concerne une feuille de polytétrafluoroéthylène poreux avec perforations macroscopiques qui présente un microstructure de noeuds interconnectés par des fibrilles, le diamètre minimum des perforations étant d'environ 0,1 mm et l'orientation des fibrilles variant en fonction de la proximité de la fibrille au bord d'une perforation. La feuille peut se présenter sous forme tubulaire.
Moen Layne L.
Walter James T.
Gowling Lafleur Henderson Llp
W. L. Gore & Associates Inc.
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