Adhesive compositions
Disclosed is an adhesive composition, devices including the adhesive composition and uses of the devices including the adhesive composition. The adhesive composition is for attachment to skin and includes an adhesive polymer component selected from a mixture of a polyethylene copolymer and polypropylene glycol (PPG), and styrene-ethylene/butylene-styrene (SEBS) block copolymer. The composition further includes polyolefin, polybutene, polyacrylic acid (PAA), and at least one further absorbent material.
1. An adhesive composition for attachment to skin, the composition comprising 10-14% (w/w) of a polyethylene copolymer, 15-20% (w/w) of a polypropylene glycol, 13-18% (w/w) of a polyolefin, 10-15% (w/w) of a polybutene, 1-5% (w/w) of a wax, 4-8% (w/w) of a polyacrylic acid, and a total of 30-35% (w/w) of one or more absorbent material(s).
2. The adhesive composition according to claim 1 , wherein the composition consists of 10-14% (w/w) of the polyethylene copolymer, 15-20% (w/w) of the polypropylene glycol, 13-18% (w/w) of the polyolefin, 10-15% (w/w) of the polybutene, 1-5% (w/w) of the wax, 4-8% (w/w) PAA, and a total of 30-35% (w/w) of one or more further absorbent material(s).
3. The adhesive composition according to claim 1 , wherein the composition has an absorption at 2 hours of at least 0.1 g/cm 2 /2 h per a 6.25 cm 2 sample having a 1 mm thickness.
4. The adhesive composition according to claim 2 , wherein the composition has an absorption at 24 hours of at least 0.5 g/cm 2 /24 h.
5. The adhesive composition according to claim 1 , wherein the composition has a gel strength where a 1 mm thick sample, soaked in an isotonic saline solution for 24 hours, has a value of below 4 N.
6. An adhesive device for attachment to a skin surface of a user, the device comprising an adhesive composition according to claim 1 and at least one release liner.
7. The adhesive device according to claim 6 , wherein the device has a skin-facing surface and a surface facing away from the skin during use, and wherein the release liner is disposed on the skin-facing surface.
8. The adhesive device according to claim 7 , wherein a second release liner is disposed on the surface facing away from the skin during use.
9. The adhesive device according to claim 6 , wherein the adhesive device is ring or oval shaped with a through-going hole for fitting around a stoma of the user.
10. The adhesive device according to claim 9 , wherein the outer diameter of the device is in the range of 30 to 60 mm.
11. The adhesive device according to claim 9 , wherein the diameter of the hole is in the range of 10 to 25 mm.
12. The adhesive device according to claim 6 , wherein the thickness of the device, including release liner(s) is in the range of 3.5 to 5.5 mm.
13. A method to attach an adhesive device to a patient in need thereof, comprising the steps of
providing an adhesive device according to claim 6 ;
removing one or more release liners from the adhesive device; and
attaching the adhesive device to a skin surface surrounding a stoma of the patient in need thereof.
14. The method according to claim 13 , comprising a further step of attaching the adhesive device to an adhesive baseplate of an ostomy device.