Additive mixing method reducing to a minimum additive...

Details Additive mixing method reducing to a minimum additive... Additive mixing method reducing to a minimum additive...

C - Chemistry, Metallurgy

08

J

C08J 3/00 (2006.01) A61L 15/00 (2006.01) A61L 15/46 (2006.01) C08J 3/20 (2006.01) C08K 9/04 (2006.01)

Patent

CA 2394241

The invention concerns a method for preparing a composition containing a superabsorbent and antimicrobial powder acting as deodorizing additive. The inventive method consists in an oven drying of a mixture of the elements of the composition, at a temperature higher than 5 DEG C than the additive melting point.

L'invention concerne un procédé d'enrobage de particules d'un polymère superabsorbant par un additif anti-microbien. Le procédé selon l'invention comprend les étapes suivantes : (a) mélangeage et malaxage du polymère superabsorbant et de l'additif anti-microbien de façon à former une composition contenant 90 à 99,99% en poids de polymère et 0,01 à 10% en poids d'additif anti-microbien; et (b) étuvage de la composition obtenue à l'étape (a) à une température comprise entre la température de fusion de l'additif et 200°C, jusqu'à la fusion totale de l'additif. Ce procédé permet de minimiser la ségrégation de l'additif et sa migration.

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