CPC B32B 27/36 (2013.01) [B32B 15/09 (2013.01); B32B 15/20 (2013.01); B32B 27/08 (2013.01); B32B 27/20 (2013.01); B32B 2250/03 (2013.01); B32B 2255/06 (2013.01); B32B 2264/102 (2013.01); B32B 2307/31 (2013.01); B32B 2307/518 (2013.01)] | 18 Claims |
1. A laminate structure comprising:
a multilayer film comprising:
a first formable layer comprising biaxially-oriented PET having a metaphase evidenced by a metaphase transition at about 180° C. to about 200° C. as measured by differential scanning calorimetry (DSC) upon a first heating; and
a sealing layer comprising a copolyester material, the sealing layer overlying the first formable layer and having an outer surface opposite the first formable layer, the sealing layer having a crystallinity from 10% to 20% as measured by differential scanning calorimetry (DSC);
a core structure comprising a first PET layer, a second PET layer, and a silica-containing PET layer interposed between the first PET layer and the second PET layer, wherein at least one layer of the core structure has a metaphase transition at about 180° C. to about 200° C. as measured by differential scanning calorimetry (DSC) upon a first heating and has a molded volume of greater than or equal to about 200%; and
an intermediate layer comprising a soft metal foil interposed between the multilayer film and the core structure.
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