A biodegradable material containing starch, a polyvinyl alcohol-co-vinyl acetate copolymer and plasticizer is provided. The material is injection moldable to produce articles such as those for entertaining animals.
The invention relates to a starch based biodegradable material comprising starch, polyvinyl-alcohol-co-vinylacetate copolymer and at least one plasticizer and to articles obtained therefrom particularly suitable to be injection molded.
Materials in the form of foam sheet comprising destructured or complexed starch expanded as a contiguous phase, having a density lying between 20 and 150 kg/m3, cell dimensions in the range lying between 25 and 700 μm and with a cell distribution such that 80% of them have a dimension lying between ...
The invention relates to a starch based biodegradable composition comprising starch, a polyvinyl alcohol co-vinyl acetate copolymer and pentaerythritol, which can be produced industrially according to the techniques commonly used for traditional plastics.