B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/08 (2006.01) B65D 65/40 (2006.01) B65D 81/24 (2006.01)
Patent
CA 2261514
The present invention relates to a multi-ply, asymmetric sequence of layers (I) usable in conjunction with a substrate as a heat sealable layer, having an outer ply (b) on the heat sealable side, wherein a melt flow rate MFR of at least 0.1 g/ 10 min, measured to DIN ISO 1133 at 190°C and 2.16 kg, is measurable for the material composition forming the overall sequence of layers (I), the sequence of layers (I) has one or more plies (i1), (i2) etc. of a material composition each of which has a higher melt flow rate MFR, measured to DIN ISO 1133 at 190°C and 2.16 kg, than the material composition forming ply (b), the sum of the weights per unit area of each of the plies (i1), (i2) etc. is at least 40%, relative to the weight per unit area of the entire sequence of layers (I).
Eggers Holger
Klein Rudi
Fetherstonhaugh & Co.
Wolff Walsrode Ag
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