ENVIRONMENTALLY DEGRADABLE POLYMERIC COMPOUNDS, THEIR PREPARATION AND USE AS HOT MELT ADHESIVE

摘要

The invention is directed to methods for preparing environmentally degradable polymeric compounds as well as to these compounds per se and to their use. The compounds of the present invention are comprised of a polycondensated lactic acid containing polymer, having a molecular weight (Mw) of from 500 to 50 000 g/mol, to which a flexibilizing aliphatic polyester having a molecular weight of from 500 to 50 000 g/mol is coupled. The amount of lactic acid comprising groups in the polymeric compound ranges from 50 to 99% and the amount of flexibilizing polyester groups ranges from 1 to 50%.