Ems Inventa Ag

Fritz Buehler

Eduard Schmid

Rainer Frische

Bernd Best

Klaus Wollmann

Renate Gross-Lannert

The present invention relates to water-resistant, thermoplastic starch materials processable into environmentally safe, thermoplastically produced products and cast sheets, which consist of starch acyl compounds, obtainable from high amylose starches and the derivatives thereof and being sparingly soluble in water, and of plasticizers which like ethyl citrate, glycerol acetate and lactic acid ester have a gelatinizing effect and preferably a dissolution property resulting in brilliant transparence and, as can be proved, are biodegradable.

Water-resistant starch materials for the production of cast sheets and

Water-resistant, thermoplastic starch materials which are processable into environmentally safe, thermoplastically produced products and cast sheets. They consist of starch acyl compounds, obtainable from high amylose starches and their derivatives (being sparingly soluble in water), and of plasticizers (like citric acid ethyl ester, glycerol acetate and lactic acid ester), which have a gelatinizing effect, and preferably, a dissolution property resulting in brilliant transparence and, as can be proved, are biodegradable.

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Thusis, Switzerland

Fritz Buehler