Pressure sensitive adhesive composition comprising cross-linked polyalkylene oxide and water absorbent hydrophilic agents

A medical device comprising a pressure sensitive adhesive composition consisting of a continuous phase comprising cross-linked polyalkyleneoxide polymer and a discontinuous phase comprising at least one water absorbent hydrophilic agent characterized in that

• a) the water absorbent hydrophilic agent or agents are 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.

A medical device comprising a pressure sensitive adhesive composition a continuous phase comprising cross-linked polyalkyleneoxide polymer and a discontinuous phase comprising at least one water absorbent hydrophilic agent characterized in that

• a) the water absorbent hydrophilic agent or are 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 and a backing layer.