COEXTRUSION BINDERS ON A RENEWABLE/BIODEGRADABLE BASIS

摘要

The invention relates to coextrusion binders including biorenewable and/or biodegradable polymers having good adhesion properties: at least one biorenewable and/or biodegradable polymer (A) grafted with a functional monomer including at least one reactive function, the grafting ratio being < 1% by weight of the grafted polymer (A); at least one non-grafted biorenewable and/or biodegradable polymer (B) identical to (A) or compatible with (A); optionally a softener (C); and optionally a starch-based material (D). The invention also relates to multilayer structures including the binder of the present invention, in which the layers are preferably made of biorenewable and/or biodegradable compounds. The multilayer structures are advantageously useful in the field of food packaging.