Heat-sealable microporous polypropylene films

C - Chemistry – Metallurgy – 08 – J

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C08J 7/04 (2006.01) B29C 55/12 (2006.01) B32B 27/32 (2006.01) C08J 9/00 (2006.01) C08L 23/00 (2006.01)

Patent

CA 1323153

0636p Hill Case 1 Heat-Sealable Microporous Polypropylene Films Summary of the Invention This invention relates to a microporous film having a heat-sealable layer on one or both sides thereof. The poros- ity and permeability of the microporous layer are retained despite the application of the heat-sealable layer.

560913

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