The invention is directed to a polymeric product based on a resin composition that comprises a high melting point (Tm) semicrystalline polymer phase and a low melting point (Tm) semicrystalline polymer phase, wherein the high Tm and low Tm semicrystalline polymer phases comprise polymers based on the same monomers and/or isomers thereof, and wherein the high Tm semicrystalline polymer phase has a higher melting point than the melting point of the low Tm semicrystalline polymer phase. In a further aspect, the invention is directed a method for the production of the foam, wherein said method comprises processing the resin composition at a temperature between the melting point of the low Tm semicrystalline polymer phase and the melting point of the high Tm semicrystalline polymer phase.
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