Heat-sealable, polyolefinic multilayer film, process for the...

Details Heat-sealable, polyolefinic multilayer film, process for the... Heat-sealable, polyolefinic multilayer film, process for the...

B - Operations, Transporting

32

B

B32B 27/32 (2006.01) B29C 47/06 (2006.01) B65D 65/40 (2006.01)

Patent

CA 2142521

The disclosed heat-sealable, layered film comprises a polyolefinic base layer and at least one outer layer. The outer layer comprises a propylene-olefin copolymer prepared by means of a metallocene catalyst. The film is prepared by coextruding melts corresponding to the individual layers of the film, taking off the coextruded film over a take-off roll whose temperature is between 10 and 90 °C, biaxially stretching and then heat-setting the resulting film, and optionally corona- or flame-treating the film, then winding it up in a wind-up unit.

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