HYDROCOLLOID ADHESIVES AND WOUND DRESSINGS CONTAINING A HYDROCOLLOID ADHESIVE
Hydrocolloid adhesive compositions, wound dressings comprising hydrocolloid adhesive compositions and methods of producing such compositions are provided. A hydrocolloid adhesive composition comprises a base polymer, a hydrocarbon tackifier, an absorbent, and a plasticizer. The hydrocarbon tackifier may comprise a cycloaliphatic hydrocarbon modified with aromatic functional groups. A wound dressing comprising the hydrocolloid layer is disposed on a carrier film. The wound dressing may comprise a discontinuous hydrocolloid layer. The hydrocolloid adhesive compositions are substantially transparent to improve visibility through a dressing. The compositions may further include materials that reduce allergic reactions by the user.
1 . A hydrocolloid adhesive composition comprising:
a base polymer;
a hydrocarbon tackifier;
an absorbent; and
a plasticizer.
2 . The hydrocolloid adhesive composition of claim 1 , wherein the base polymer comprises about 5% to about 20% by weight of the composition.
3 . The hydrocolloid adhesive composition of claim 1 , wherein the hydrocarbon tackifier comprise about 25% to about 40% by weight of the composition.
4 . The hydrocolloid adhesive composition of claim 1 , wherein the absorbent comprises about 30% to about 50% by weight of the composition.
5 . The hydrocolloid adhesive composition of claim 1 , wherein the plasticizer comprises up to about 20% by weight of the composition.
6 . The hydrocolloid adhesive composition of claim 1 , wherein the hydrocarbon tackifier is a cycloaliphatic hydrocarbon modified with aromatic functional groups.
7 . The hydrocolloid adhesive composition of claim 2 , wherein the cycloaliphatic hydrocarbon modified with aromatic functional groups comprises about 5 wt. % to about 15 wt. % aromatic protons.
8 . The hydrocolloid adhesive composition of claim 1 , wherein the base polymer comprises a poly(styrene-olefin-styrene) polymer or a poly(styrene-isoprene-styrene) polymer.
9 . The hydrocolloid adhesive composition of claim 1 , wherein the absorbent is a hydrophilic polymer.
10 . The hydrocolloid adhesive composition of claim 9 , wherein the hydrophilic polymer is a cellulose.
11 . The hydrocolloid adhesive composition of claim 1 , wherein the plasticizer is selected from mineral oil, liquid isoprene rubber and combinations thereof.
12 . A wound dressing comprising:
a carrier film; and
a hydrocolloid layer disposed on the carrier film, wherein the hydrocolloid layer comprises:
a base polymer;
a hydrocarbon tackifier;
an absorbent; and
a plasticizer.
13 . The wound dressing according to claim 12 , wherein the carrier film is selected from the group consisting of a polyurethane film, an ethylene vinyl acetate film, or a combination thereof.
14 . The wound dressing of claim 12 , wherein the hydrocolloid layer is discontinuous.
15 . The wound dressing of claim 12 , wherein the hydrocolloid layer comprises a plurality of undulating lines of the hydrocolloid adhesive composition disposed on the carrier film.
16 . The wound dressing of claim 12 , wherein the hydrocolloid layer comprises a plurality of dots of the hydrocolloid adhesive composition disposed on the carrier film.
17 . The wound dressing of claim 12 , wherein the hydrocolloid layer comprises a plurality of parallel lines of the hydrocolloid adhesive composition disposed on the carrier film.
18 . A hydrocolloid adhesive composition comprising:
a base polymer;
a tackifier;
an absorbent;
a plasticizer; and
wherein the hydrocolloid adhesive composition is substantially transparent.
19 . The hydrocolloid adhesive composition of claim 18 , wherein the composition has a refractive index ranging from about 1 to about 2.
20 . The hydrocolloid adhesive composition of claim 18 , wherein the composition has a total transmittance of at least about 50%.