Purac Biochem Bv

Huhtamaki Oyj

Purac Biochem N.v.

Sicco De Vos

Aad Hoekstra

Gerald G J Schennink

Geraldg J Schennink

An essentially biobased and optionally biodegradable, thermoformable composition containing

Essentially biobased, thermoformable composition and containers formed thereof

The present invention is directed to stable lactide particles, more specifically lactide particles which are stable enough to be stored and transported at room temperature and have a quality high enough for use as starting material for polylactic acid. The lactide particles have a surface/volume ratio of the particle is lower than 3000. Preferably the lactide in the particle has an optical purity of at least 95%. The lactide particles are prepared by subjecting lactide to a shaping step comprising extrusion, pastillation, prilling, tabletting, or flaking.

Stable lactide particles

The present invention is directed to a method for the manufacture of stable lactide particles, more specifically lactide particles which are stable enough to be stored and transported at room temperature and have a quality high enough for use as starting material for polylactic acid. The lactide particles are obtained via a flaking process, comprising the contacting of a continuous flow of molten lactide with a surface on which the lactide solidifies and subsequently is removed from said surface.

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Arnhem, Netherlands

Sicco De Vos