| abstract |
Expandable polymer particles containing at least one thermoplastic polyurethane (TPU) having a Vicat softening point (according to ISO 306 / ASO) of below 80 ° C and 5 to 95 wt .-%, of at least one polymer obtainable by free-radical polymerization, based on the sum of TPU and polymer obtainable by free-radical polymerization, wherein the polymer obtainable by free-radical polymerization is bound to the TPU as comb, graft or copolymer, are suitable for the production of moldings, in particular for use as insulating material. |