Biaxially oriented, multilayer polyolefin film of high...

Details Biaxially oriented, multilayer polyolefin film of high... Biaxially oriented, multilayer polyolefin film of high...

B - Operations, Transporting

32

B

B32B 27/08 (2006.01) B29C 47/06 (2006.01) B32B 27/32 (2006.01) C08L 23/10 (2006.01)

Patent

CA 2099932

A transparent, coextruded, multilayer polyolefin film which can be heat-sealed at low temperatures and comprises a base layer and at least one top layer applied on one side. The multilayer film has, at 120°C, a longitudinal shrinkage of greater than about 10%, preferably from about 15% to about 35%, and a transverse shrinkage of greater than about 10%, preferably from about 15% to about 35%. The multilayer film has, at 90°C, a longitudinal shrinkage of at most about 10%, preferably from about 3% to about 8%, and a transverse shrinkage of at most about 10%, preferably from about 2% to about 8%. The top layers have a minimum sealing temperature of at most about 124 °C, preferably from about 75°C to about 110°C. The film is useful as a packaging film.

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