FIELD: chemistry.
SUBSTANCE: invention relates to polymer foams, applied for heat insulation, and methods of their obtaining. Claimed is polymer foam, which includes a polymer matrix, in which there is more than 50 wt % of thermoplastic polymers, determining multiple cells, which are dispersed in it, and bemite aluminium oxide dispersed inside the polymer matrix in a quantity of 0.5-5 wt % per weight of the polymer composition. A method of obtaining the said foam is also claimed.
EFFECT: possibility of obtaining the polymer foam with closed cells, which contains a heat-insulating additive, which produces a minimal impact on the polymer foam colour and practically does not interfere with an application of pigments for the polymer foam coloration.
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