Thermoformable laminate
First Claim
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1. A thermoformable polymeric laminate comprising:
- (a) a core layer comprising an oxygen barrier material;
(b) a polyamide layer disposed on each surface respectively of the core layer, the polyamide including a nucleating agent;
(c) an outer sealant layer;
(d) a second outer layer comprising a moisture barrier material;
and(e) an intermediate layer disposed between the polyamide layer and each of the sealant layer and second outer layer respectively, and comprising an anhydide grafted polyolefin.
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Abstract
A thermoformable polymeric laminate with good optical properties, extended shelf life, and memory characteristics comprises a core layer comprising an oxygen barrier material; a polyamide layer disposed on each surface respectively of the core layer, the polyamide having controlled crystallinity; a sealant layer; an outer layer comprising a moisture barrier material; and an intermediate layer disposed between the polyamide layer and each of the sealant layer and outer layer respectively, and comprising an anhydride grafted polyolefin.
122 Citations
8 Claims
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1. A thermoformable polymeric laminate comprising:
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(a) a core layer comprising an oxygen barrier material; (b) a polyamide layer disposed on each surface respectively of the core layer, the polyamide including a nucleating agent; (c) an outer sealant layer; (d) a second outer layer comprising a moisture barrier material; and (e) an intermediate layer disposed between the polyamide layer and each of the sealant layer and second outer layer respectively, and comprising an anhydide grafted polyolefin. - View Dependent Claims (2, 3, 4, 6, 7, 8)
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5. The sealant layer according to claim 5 further comprising a small amount of an antiblock agent.
Specification