Multi-layer polypropylene film structure

Details Multi-layer polypropylene film structure Multi-layer polypropylene film structure

B - Operations, Transporting

32

B

18/783

B32B 27/08 (2006.01) B32B 27/32 (2006.01)

Patent

CA 1263210

ABSTRACT An oriented multi-layer polypropylene film structure comprises a base layer comprising polypropylene of relatively high stereoregularity and a skin layer comprising a polyolefin of relatively low stereoregularity coextruded on at least one surface of the base layer. The skin layer contains a combination of finely divided silica, a silicone oil and a polymer which is incompatible with said skin layer polyolefin and which has a melting point exceeding that of the skin layer polyolefin by at least 83°C (150°C).

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