| abstract |
A biodegradable flexible material suitable for producing at least the soles of biodegradable slippers is described, said material comprising starch, a biodegradable polyester and a plasticizer selected from tributyl citrate, acetyl tributyl citrate and mixtures thereof in non bleeding amounts of at most 15 % by weight referred to the weight of the total mixture as well as a physical expansion material such as microsheres. |