FIELD: chemistry.
SUBSTANCE: invention relates to a foamed article made from thermoplastic polyesters. Polyester foam for making the foamed article contains thermoplastic elastomers and has characteristic viscosity greater than 1.2 dl/g. The foamed article is made using an agent which contains thermoplastic elastomers and dianhydrides of tetracarboxylic acids. The foamed article is made from polyester having a premix of thermoplastic elastomers and dianhydrides of tetracarboxylic acids which is mixed and foamed to form a foamed article. The foamed article contains thermoplastic elastomers or thermoplastic elastomers based on copolyesters in amount of 0.5-15 wt % with respect to weight of the foamed article.
EFFECT: foamed article has high homogeneity, low open porosity and high breaking elongation under shearing stress.
12 cl, 2 tbl, 7 ex
