Biaxially oriented polypropylene film for metallizing...

Details Biaxially oriented polypropylene film for metallizing... Biaxially oriented polypropylene film for metallizing...

B - Operations, Transporting

32

B

154/140, 154/126

B32B 15/08 (2006.01) B32B 27/20 (2006.01) B32B 27/32 (2006.01)

Patent

CA 1315185

Abstract of the Disclosure A metallizable, heat-sealable, biaxially oriented multi-layer film for metallizing applications is described which comprises a base layer comprising polypropylene, a first polyolefinic heat-sealable surface layer and a second polyolefinic metallizable surface layer. The second polyolefinic metallizable surface layer comprises a propylene-ethylene copolymer, which has an ethylene content of 1.2 to 2.8% by weight, a distribution factor VF greater than 10, an enthalpy of fusion .DELTA. Hm greater than 90 J/g and a thermo-oxidation temper- ature Tox greater than 240°C.

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