Heat-sealable, opaque, biaxially oriented, multilayer...

Details Heat-sealable, opaque, biaxially oriented, multilayer... Heat-sealable, opaque, biaxially oriented, multilayer...

B - Operations, Transporting

32

B

B32B 27/08 (2006.01) B29C 47/06 (2006.01) B32B 27/32 (2006.01) B65D 65/40 (2006.01)

Patent

CA 2122887

Abstract of the Disclosure The invention relates to a multilayer polypropylene film which comprises a base layer K, an interlayer Z and an outer layer D in the structure KZD. The base layer includes propylene polymer or a propylene polymer mixture and filler. The interlayer includes a propylene polymer or a propylene polymer mixture and pigment. The outer layer is heat-sealable and contains a combination of inorganic and/or organic particles and a tertiary aliphatic amine of the formula I: Image in which R1 is essentially an alkyl radical having at least 18 carbon atoms or an essentially fully saturated alkyl radical having 8 to 26 carbon atoms, and R2 and R3 are identical or different and are R4-CH2OH, in which R4 is an essentially saturated C1-C6-alkyl radical.

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