Absorbent article with a multifunctional acrylate skin-adhesive composition
Improved skin-adhesive compositions for bonding a substrate, such as an absorbent article, to skin are disclosed. More particularly, the skin-adhesive composition has an improved, yet gentle, adhesion to the skin of a user, while maintaining strong, effective bonding to various inanimate, non-skin substrates. In one embodiment, the skin-adhesive composition can provide one or more skin benefit agents to the user. The skin-adhesive composition may applied to an absorbent article, such as a panty-liner, sanitary napkin, or an incontinence article, for directly adhering the article to the skin of a user.
1. An absorbent article for attachment to a wearer's skin in the vulva region, the absorbent article comprising an absorbent structure and a shell,
the shell having a body-facing surface and a garment-facing surface, a first region having a pair of lateral side regions extending from the first region, the pair of lateral side regions each comprise a proximate end adjacent the first region and a free distal end, and the pair of lateral side regions and the first region define an opening in the shell,
the absorbent structure being adapted to be attached to the garment-facing surface of the shell such that at least a portion of the absorbent structure is positioned in the opening in the shell and a majority of the opening of the shell has the absorbent structure positioned therein, wherein the absorbent structure has an absorbent capacity,
wherein when applied to the wearer, the body-facing surface of the shell contacts the wearer's skin surrounding the vulva region and the shell is sized and shaped such that the body-facing surface of the shell only contacts the skin of the wearer proximate to the vulva region of the wearer, and
the body-facing surface having a removable and re-attachable skin-adhesive composition thereon for adhering the shell directly to a wearer, the skin-adhesive composition comprising a hot-melt acrylate-based adhesive having 50% by weight acrylate, an adhesion modifier, and a skin benefit agent, wherein the the adhesion modifier and the skin benefit agent are present in an amount of about 10% (by total weight of the composition), wherein the adhesion modifier is patricles of lauryl methacrylate/glycol dimethacrylate crosspolymer, wherein the adhesive composition is substantially free of a solvent, and wherein the adhesion modifier is a matrix filled with the skin benefit agent and the skin benefit agent-containing matrix is dispersed within the acrylate-based adhesive to form a single layer adhesive composition.
2. The absorbent article as set forth in claim 1 wherein the adhesive composition comprises about 90% (by total weight of the composition) of the hot-melt acrylate-based adhesive.
3. The absorbent article as set forth in claim 1 wherein the skin benefit agent is tocopherol.
4. The absorbent article as set forth in claim 1 wherein the adhesive composition comprises about 6% (by total weight of the composition) skin benefit agent.
5. The absorbent article as set forth in claim 1 wherein the matrix is selected from the group consisting of a channel-like matrix and a pore-like matrix, the matrix being capable of allowing controlled-release of the skin benefit agent.
6. The absorbent article as set forth in claim 1 wherein the body-facing surface comprises from about 10 gram per square meter to about 400 grams per square meter skin-adhesive composition.