Polymethylpentene release sheet

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

18/1000, 400/942

C08L 23/20 (2006.01) B29C 33/68 (2006.01) C08J 5/18 (2006.01) H05K 1/18 (2006.01) H05K 3/02 (2006.01)

Patent

CA 1296833

ABSTRACT OF THE DISCLOSURE A release sheet, comprising poly-4-methylpentene-1 film containing a copper salt of an alkanoic acid and at least one of an alkali metal halide and an alkaline earth metal halide, is dsclosed. Such film is useful as a release sheet in the manufacture of printed circuit boards

563299

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