C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
18/23
C25B 13/08 (2006.01) C08J 5/12 (2006.01)
Patent
CA 1046217
ABSTRACT OF THE DISCLOSURE A method of manufacturing a porous diaphragm for an electrolytic cell from a plurality of sheets of filled polytetra- fluoroethylene which method comprises fusing a melt-processable fluorinated polymer into juxtaposed edges of said sheets at a temperature which will not substantially decompose the filler in said sheets, solidifying the melt-processable polymer so as to effect joining of the shoots and thereafter removing filler from the thus joined sheets.
230328
Imperial Chemical Industries Limited
Na
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