Composite films for deep-drawn packings
First Claim
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1. A heat-sealable composite film shrinkable by deep drawing, which comprises(1) at least one layer of at least one copolyamide 6/12 containing at least 50% by weight of ε
- -caprolactam units and having a melting temperature of 75°
to 215°
C.,(2) at least one heat-sealable layer of a copolymer containing at least 50 mole percent of ethylene and, optionally,(3) an adhesive or adhesion-promoting layer between layers 1 and 2.
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Abstract
The invention relates to composite packing films shrinkable by deep drawing and consisting of at least one copolyamide layer containing at least 50% by weight of ε-caprolactam units and at least one heat-sealable layer, and optionally, an adhesion-promoting layer.
30 Citations
15 Claims
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1. A heat-sealable composite film shrinkable by deep drawing, which comprises
(1) at least one layer of at least one copolyamide 6/12 containing at least 50% by weight of ε - -caprolactam units and having a melting temperature of 75°
to 215°
C.,(2) at least one heat-sealable layer of a copolymer containing at least 50 mole percent of ethylene and, optionally, (3) an adhesive or adhesion-promoting layer between layers 1 and 2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- -caprolactam units and having a melting temperature of 75°
Specification