Novel hydrocolloid adhesive mass with improved resistance to...

C - Chemistry – Metallurgy – 09 – J

Patent

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C09J 153/02 (2006.01) A61L 15/58 (2006.01)

Patent

CA 2367242

The invention concerns novel hydrocolloid adhesive masses consisting of an adhesive mixture based on low molecular polyisobutylene and a block poly(styrene-olefin-styrene) polymer, and a cellulose derivative with which is associated an acrylate polymer having a glass transition temperature less than 20 ~C so as to increase resistance to deterioration of the absorption capacity of said hydrocolloid adhesive mass after sterilisation by radiation. The invention also concerns the use of said novel hydrocolloid adhesive masses for medical, dermatological or cosmetic purposes, in particular for producing dressings for treating blisters, exudative wounds, burns and dermal-epidermal sores whether superficial, deep, chronic or acute.

La présente invention concerne de nouvelles masses adhésives hydrocolloïdes constituées d'un mélange adhésif, à base d'un polyisobutylène de bas poids moléculaire et d'un polymère séquencé poly(styrène-oléfine-styrène), et d'un dérivé de cellulose auxquels est associé un polymère acrylate ayant une température de transition vitreuse inférieure à - 20 ·C dans le but d'augmenter la résistance à la dégradation de la capacité d'absorption de ladite masse adhésive hydrocolloïde après radiostérilisation. L'invention concerne également l'utilisation de ces nouvelles masses adhésives hydrocolloïdes à des fins médicales dermatologiques ou cosmétiques, en particulier pour la réalisation de pansements pour le traitement de l'ampoule, des plaies exsudatives, brûlures et des lésions dermo-épidermiques superficielles, profondes, chroniques ou aiguës.

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