Heat-resistant poly-l-lactic acid preform

Details Heat-resistant poly-l-lactic acid preform Heat-resistant poly-l-lactic acid preform

C - Chemistry, Metallurgy

08

J

C08J 3/20 (2006.01) B29B 11/06 (2006.01) B65D 1/00 (2006.01) B65D 65/46 (2006.01) C08L 67/04 (2006.01)

Patent

CA 2658794

Disclosed is a preform which comprises a functional filler blended into a resin comprising a poly(L-lactic acid) and which has an opening treated by heating. Also disclosed is a hollow molded article formed by the blow-molding of the preform. The preform is improved in the degree of crystallinity at the opening and has good heat resistance. Therefore, the preform is suitable for practical use.

L'invention concerne une préforme qui comporte une charge fonctionnelle mélangée dans une résine comprenant un acide poly(L-lactique) et qui est munie d'une ouverture traitée par chauffage. L'invention concerne également un article moulé creux formé par un moulage par soufflage de la préforme. Le degré de cristallinité à l'ouverture de la préforme est améliorée et sa résistance à la chaleur est satisfaisante, ce qui rend l'utilisation de la plate-forme très pratique.

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