B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
183/109
B01D 39/16 (2006.01) B01D 67/00 (2006.01) B01D 71/36 (2006.01) B29C 55/00 (2006.01) C08J 5/18 (2006.01)
Patent
CA 2024372
A thin, low density porous polytetrafluoroethylene membrane having very large pores (5) and heretofore unknown high air permeabilities is described. Themembrane is produced by a particular series of longitudinal and transverse stretching steps carried out under particular conditions. ,
On a mis au point une membrane en polytétrafluoroéthylène fine, poreuse et de faible densité, présentant des pores (5) très grands, et des perméabilités à l'air élevées inconnues à ce jour. On produit la membrane en une série particulière d'étapes d'étirage longitudinal et transversal exécutées dans des conditions particulières.
Gowling Lafleur Henderson Llp
W.l. Gore & Associates Inc.
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