AN ESSENTIALLY BIOBASED THERMOFORMABLE COMPOSITION AND CONTAINERS FORMED THEREOF

摘要

The present invention relates to an essentially biobased and optionally biodegradable thermoformable composition containing a) as thermoformable resin at least one poly L lactide with less than 1 mol% of D lactoyl units (PLLA) or at least one poly L lactide with from 1 mol% to 5 mol% of D lactoyl units (PLA) and b) a nucleating combination consisting of a) 1 to 10 % by weight based on the total amount of the thermoformable resin a) of at least one poly D lactide with less than 1 mol% of L lactoyl units (PDLA) as component a 1 ) or of 0.5 to 5% by weight based on the total amount of the thermoformable resin a) of PLLA/PDLA or PLA/PDLA stereocomplex crystallites preferably with a molar ratio of 1:1 as component a 2) ß) 0.1 to 25% by weight based on the total amount of the thermoformable resin a) of an inorganic nucleating agent preferably talc and ?) 0.1 to 30 % by weight based on the total amount of the thermoformable resin a) of at least an inorganic filler with lamellar structure preferably a lamellar clay mineral and to thermoformed essentially biobased and optionally biodegradable containers formed of the inventive compositions.