Stable lactide particles

Details Stable lactide particles Stable lactide particles

C - Chemistry, Metallurgy

08

G

C08G 63/00 (2006.01)

Patent

CA 2670931

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.

L'invention concerne un procédé de production de particules de lactide stables, et plus spécifiquement des particules suffisamment stables pour être stockées et transportées à température ambiante et de qualité suffisamment élevée pour être utilisées comme matière de départ pour un acide polylactique. Les particules de lactide sont obtenues via un processus de floconnage consistant à mettre en contact un écoulement continu de lactide fondu avec une surface sur laquelle le lactide se solidifie et de laquelle il est retiré.

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