C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
204/201, 117/88.
C25B 13/08 (2006.01) C08J 5/22 (2006.01)
Patent
CA 1226849
22. ABSTRACT A diaphragm of a porous sheet of an organic polymer for example, polytetrafluoroethylene, which contains a wetting agent distributed through- out the thickness of the sheet, the concentration of the wetting agent in that part of the sheet near to one or to both outer surfaces of the sheet being greater than the concentration of the wetting agent in that part of the sheet remote from the outer surfaces of the sheet.
430042
Cairns John F.
Cowell Gawin W.
Barlow Charles Brian
Imperial Chemical Industries Plc
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