Sheet-Like Composite, Especially Packaging Laminate For Dimensionally Stable Foodstuff Containers, Having A Polymeric Intermediate Layer Characterized By Differential Scanning Calorimetry
Patent No. EP3397480 (titled "Sheet-Like Composite, Especially Packaging Laminate For Dimensionally Stable Foodstuff Containers, Having A Polymeric Intermediate Layer Characterized By Differential Scanning Calorimetry") was filed by SIG Combibloc Services on Dec 21, 2016. The application was issued on Jul 16, 2025.
Patent Summary
A sheet-like composite for foodstuff containers comprises a layer sequence from an external side to an internal side consisting of a carrier layer, a polymeric intermediate layer, and an oxygen barrier layer. The carrier layer, composed of cardboard, paperboard, paper, or combinations thereof, has a weight per unit area of 120–450 g/m². The polymeric intermediate layer consists of a first intermediate layer—containing 10–80 wt% HDPE and 20–90 wt% LDPE—and a further intermediate layer. Differential scanning calorimetry of the polymeric intermediate layer reveals two peaks, A and B, where temperature $T_B > T_A$ and the width of peak B is at least 3°C narrower than that of peak A.
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Date
Description
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EP3397480
- Application Number
- EP16825734A
- Filing Date
- Dec 21, 2016
- Status
- Granted And Under Opposition
- Jun 13, 2025
- Publication Date
- Jul 16, 2025
- External Links
- Slate, Register , Google Patents