A discontinuous silicone adhesive article

Abstract

A discontinuous silicone article is disclosed that includes a plurality of strands of radiation cured silicone gel arranged to form a net-like structure with openings between strands. The silicone gel provides adhesion to a surface, such as skin, and the openings provide for moisture transmission away from the surface. The discontinuous silicone article comprises at least one adhesive polymer strand and a plurality of joining strands. The adhesive polymer strands comprise a radiation cured silicone gel and each polymer strand repeatedly contacts an adjacent joining strand at bond regions.

Description

Technical field [0001] The present disclosure relates to discontinuous silicone adhesive articles and methods for preparing discontinuous silicone adhesive articles. Background technique [0002] Silicone adhesives can be used in medical tapes and dressings because they can provide adhesion to the skin and are gently removed from the skin without causing trauma or stripping skin cells or hair. Skin, especially wounds, can produce moisture. Silicone adhesives are generally very hydrophobic and do not allow fluid absorption or passage of fluids. Therefore, moisture from the skin can weaken the adhesive bond to the skin and cause the adhesive to lift off the skin. Moreover, moisture from the skin can be trapped and can cause skin maceration. [0003] To help remove moisture or fluid from the skin, hydrophilic silicones can be blended with hydrophobic silicones to improve moisture absorption, see, for example, US Patent 7,842,752. In other designs, incorporating absorbent particles...

AI Technical Summary

Problems solved by technology

However, perforating the adhesive coated film during the production process creates wasted material and thus increases cost

Furthermore, the perforation process increases the risk of particles or debris from the cutting process becoming embedded in the silicone adhesive and being introduced into the skin or wound

Images