C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
18/33
C08J 5/18 (2006.01) B29C 55/02 (2006.01) B29C 59/00 (2006.01) B29D 7/01 (2006.01) B29C 49/00 (2006.01) B29C 55/00 (2006.01) B29C 71/02 (2006.01)
Patent
CA 1322082
ABSTRACT OF THE DISCLOSURE A breathable polyolefin film is prepared by melt embossing a highly filled polyolefin film to impose a pattern of different film thickness therein and by stretching the melt embossed film to impart greater permeability in the areas of reduced thickness in comparison to the areas of greater thickness.
560718
Borden Ladner Gervais Llp
Exxon Chemical Patents Inc.
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