A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 9/70 (2006.01) A61L 15/58 (2006.01) A61L 24/00 (2006.01) A61L 24/04 (2006.01) A61L 24/08 (2006.01) C08G 65/336 (2006.01) C08L 83/04 (2006.01) C09J 183/12 (2006.01)
Patent
CA 2651343
Accordingly, the present invention relates to a pressure sensitive adhesive composition consisting of a continuous phase comprising cross-linked polyalkyleneoxide polymer and a discontinuous phase comprising water absorbent hydrophilic agents wherein a) the water absorbent hydrophilic agent(s) is present in an amount between 1 and 40 % w/w of the total adhesive composition; and b) the continuous phase comprises the reaction product (X) of: (i) a polyalkyleneoxide polymer having one or more unsaturated end groups, and where more than 90 % w/w of the polyalkylene oxide polymer consist of polymerised alkyleneoxide moities having three or more carbon atoms, and (ii) an organosiloxane comprising one or more Si-H groups, carried out in the presence of an addition reaction catalyst. The present invention also relates to medical devices comprising such pressure sensitive adhesives.
L'invention se rapporte à une composition adhésive autocollante constituée d'une phase continue contenant un polymère polyalkylène réticulé et d'une phase discontinue contenant des agents hydrophiles absorbant l'eau. Dans cette composition, a) un ou plusieurs des agents hydrophiles absorbant l'eau sont présents à raison d'une proportion comprise entre 1 et 40% en poids de la composition adhésive totale, et b) la phase continue contient le produit réactionnel (X) de :(i) un polymère oxyde de polyalkylène possédant un ou plusieurs groupes d'extrémité insaturés, plus de 90% en poids de ce polymère oxyde de polyalkylène étant constitué de fractions oxyde d'alkylène polymérisées comprenant au moins trois atomes de carbone, et (ii) un organosiloxane contenant un ou plusieurs groupes Si-H, la réaction étant conduite en présence d'un catalyseur de réaction d'addition. L'invention concerne également des dispositifs médicaux contenant de tels adhésifs autocollants
Bach Anders
Hansen Kristoffer
Lam Peter Kwok Hing
Lykke Mads
Coloplast A/s
Ridout & Maybee Llp
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