Desiccant plastic composition for a shaped article

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 23/08 (2006.01) B01D 53/28 (2006.01) B29C 45/00 (2006.01) B65D 81/26 (2006.01) C08L 23/16 (2006.01)

Patent

CA 2609787

In one embodiment, the present invention is a shaped article comprising an injection molded desiccant plastic composition, wherein the shaped article is a cylinder with an outside diameter of at least about 8.00 mm, a wall thickness of at least about 0.4 mm and an overall length of at least about 50.0 mm, wherein the desiccant plastic composition comprises a desiccant and a base polymer of a thermoplastic, and wherein the resulting shaped article has properties including a moisture uptake rate of at least about 20 mg in 24 hour measured by the Desiccant Rate of Absorption Test Procedure and of a stiffness of at least about 25 Newtons measured by the Mechanical Resistance Control test method.

La présente invention concerne, dans un mode de réalisation, un article profilé comprenant une composition plastique desséchante moulée par injection, lequel article profilé est un cylindre présentant un diamètre extérieur d'au moins environ 8,00 mm, une épaisseur de paroi d'au moins environ 0,4 mm et une longueur totale d'au moins environ 50,0 mm, laquelle composition plastique desséchante comprend un desséchant et un polymère de base d'un thermoplastique. L'article profilé ainsi obtenu présente des propriétés telles qu'un taux d'absorption d'humidité, mesuré par la procédure d'essai de taux d'absorption de desséchant, d'au moins environ 20 mg par 24 heures et une rigidité, mesurée par le procédé d'essai de contrôle de résistance mécanique, d'au moins environ 25 Newtons.

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