Bioriented film

Details Bioriented film Bioriented film

B - Operations, Transporting

29

C

18/1040

B29C 55/14 (2006.01) B29C 55/00 (2006.01) C08J 5/18 (2006.01) C08L 23/08 (2006.01)

Patent

CA 2019876

At least one layer of a mono- or multilayered, bioriented film contains as film-forming polymers (A) from 75 to 100 percent of a linear ethylene/alpha-olefin copolymer having a density of from 0.890 g/cm3 to 0.930 g/cm3 and (B) from 25 to 0 percent of a high density linear polyethylene having a density of from 0.935 g/cm3 to 0.960 g/cm3. All percentages are based on the total weight of (A) and (B). The total of the film-forming polymers (A) and (B) has a single melting point as determined by differential scanning calorimetry. The bioriented film is produced by biorienting a flat film in at least two steps first in one direction and then in the other direction. The bioriented film is useful in a process for packaging an article wherein the film is wrapped around the article, heat-shrunk and sealed.

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