Low trauma adhesive article

A - Human Necessities – 61 – L

Patent

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Details

A61L 15/58 (2006.01) A61B 5/04 (2006.01)

Patent

CA 2312389

A low trauma pressure-sensitive adhesive coated substrate comprising a sheet material, tape or laminate structure designed to adhere to skin or like surfaces. The pressure-sensitive adhesive layer of this adhesive coated substrate is a fibrous adhesive layer generally having a basis weight of from 5 to 200 g/m2 applied to a conformable backing or substrate. The fibrous adhesive layer has a textured outer face and persistent porosity between discrete adhesive fibers. Generally, the fibrous adhesive layer has an MVTR (measured by ASTM E 96-80 at 40 °C) of at least 1000 g/m2/day, preferably at least 6000 g/m2/day.

L'invention concerne un substrat recouvert d'adhésif autocollant, peu traumatisant, qui comporte un matériau en feuille, une bande ou une structure stratifiée conçus pour adhérer à la peau ou à des surfaces analogues. La couche adhésive autocollante de ce substrat recouvert d'adhésif consiste en une couche adhésive fibreuse présentant, généralement, un grammage compris entre 5 et 200 g/m<2>, appliquée sur un support ou un substrat déformable. La couche adhésive fibreuse présente une surface extérieure structurée et une porosité persistante entre des fibres adhésives discrètes. De manière générale, la couche adhésive fibreuse présente un indice de perméabilité à l'humidité (mesuré selon la norme ASTM E 96-80 à 40 DEG C) d'au moins 1000 g/m<2>/jour, de préférence d'au moins 6000 g/m<2>/jour.

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