| 摘要 |
<p>Deep-drawn, multilayered, symmetrical, non-curling coextruded foil comprisin g at least the following layers: a) two outer layers (24 and 24') consisting o f polyolefins or olefin copolymer or a mixture of said polymers and optionally conventional lubricating agents and/or antiblocking agents; b) two adjacent inner layers (10 and 10') consisting of polyolefins or olefin copolymers or a mixture of said polymers whose melting point is less than 100 ~C and optionally conventional additives; c) two inner layers (16 and 16') containi ng a polyamide or a mixture of different polyamides; d) an inner layer (14) bordering on the inner layers (12 and 16) and an inner layer (14') bordering on 12' and 16' containing an adhesion promotion polymer and e) an inner laye r (20) bordering on the inner layers 24 and 16 and an inner layer (20') bordering on 24' and 16' containing an adhesion promoting polymer._________< /SDOAB></p> |
