Process for preparing films and coatings

Details Process for preparing films and coatings Process for preparing films and coatings

C - Chemistry, Metallurgy

08

J

C08J 5/18 (2006.01) B29C 47/88 (2006.01) B32B 29/00 (2006.01) C09D 167/04 (2006.01)

Patent

CA 2179522

Extrusion films and coatings are prepared by applying a polyhydroxyalkanoate (PHA) to a surface which is in the range from 20 °C above to 20°C below the optimum crystallisation temperature of the PHA. A PHA of high melt flow index is preferred.

Selon l'invention, on prépare des films et des revêtements formés par extrusion en appliquant un polyhydroxyalcanoate (PHA) sur une surface dont la température est comprise dans une plage allant de 20 ~C au-dessus à 20 ~C au-dessous de la température optimale de cristallisation du PHA. On préfère un PHA présentant un indice élevé de fluidité à chaud.

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