Sheet-like composite, especially packaging laminate for dimensionally stable foodstuff containers, having a polymeric intermediate layer characterized by differential scanning calorimetry

A laminate including as layers of a layer sequence, in a direction from an external side of the laminate to an internal side of the laminate,

• a) a polymeric external layer, wherein the polymeric external layer comprises a polyolefin,
• b) a carrier layer, wherein the carrier layer includes a material selected from the group consisting of cardboard, paperboard, paper, and a combination of at least two thereof;
• c) a polymeric intermediate layer, wherein the polymeric intermediate layer comprises a polyolefin, and
• d) a barrier layer,
• where a graph of differential scanning calorimetry of the polymeric intermediate layer includes a peak A at a temperature TA and a peak B at a temperature TB,
• where the temperature TB is more than the temperature TA,
• where a width of the peak B is less by at least 3° C. than a width of the peak A,
• where the polymeric intermediate layer comprises a first intermediate layer and a second intermediate layer, wherein the first intermediate layer comprises from 20-70 wt. % HDPE, based on the total weight of the first intermediate layer, and 30-80% wt. % of LDPE, based on the total weight of the first intermediate layer;
• and
• where the polyolefin in the polymeric intermediate layer does not include LLDPE;
• wherein the polyolefin in the polymeric external layer does not consist of a polyethylene prepared using a metallocene catalyst (mPE).