Biobased, eco-friendly hotmelt adhesive

A hotmelt adhesive formulation comprising:

• at least one polylactide having a glass transition temperature of more than 50° C., a melt flow index of more than 25 g/10 min, measured at a temperature of 210° C. with a load of 2.16 kg, a weight-average molecular weight Mw in the range from 120 000 to 280 000 g/mol and a Hansen solubility parameter of 19.2 to 21.1 (J/cm3)0.5, with the fraction of the at least one polylactide being 5 to 45% by weight, based on the total weight of the hotmelt adhesive formulation;
• at least one polybutylene succinate having a melt flow index of 3 to 26 g/10 min, measured at 190° C. with a load of 2.16 kg, a weight-average molecular weight Mw in the range from 60 000 to 190 000 g/mol and a Hansen solubility parameter of 20.1 to 21.2 (J/cm3)0.5, with the fraction of the at least one polybutylene succinate being 10 to 55% by weight, based on the total weight of the hotmelt adhesive formulation;
• at least one naturally occurring resin having a melting temperature between 6° and 150° C., a melt viscosity of 80 to 24 000 mPa·s at 140° C. and a Hansen solubility parameter between 16.0 and 21 (J/cm3)0.5, with the fraction of the at least one naturally occurring resin being 30 to 55% by weight, based on the weight of the hotmelt adhesive formulation;
• at least one citric acid tri (C2-C8)alkyl ester or acetylcitric acid tri (C2-C8)alkyl ester as plasticizer in a fraction of 5 to 15% by weight, based on the total weight of the hotmelt adhesive formulation;
• and
• at least one epoxidized vegetable oil as stabilizer in a fraction of 0.5 to 1.5% by weight, based on the total weight of the hotmelt adhesive formulation.