Adhesive Articles Which Contain At Least One Hydrophilic Or Hydrophobic Layer, Method For Making And Uses For Same
Patent #: 7,175,897
Inventor(s): Richard Baron, Paul Boulier, Michael Gilbert, Thanh Nguyen, Frank Rizzo and Frank Shih
Company: Avery Dennison Corporation
An article for fluid transport has been granted a patent. The article includes a substrate with at least one fluid transport structure and at least one adhesive article. The adhesive article features a base layer with a first and second surface and at least one coating layer on at least one surface of a base layer. The coating layer comprises: (A) at least one adhesive resin and (B) at least one hydrophilic polymer, at least one surfactant or a combination of at least one hydrophilic polymer and at least one surfactant, with the provision that when (B) is only a surfactant, then the coating layer contains less than about 40% by weight polyurethane. The hydrophilic polymer is selected from cellulosic polymers, polyvinyl alcohol, polyvinyl pyrolidone, dextran, nylons, polyamides, hydroxyethyl methacrylate, starches and gelatins. At least one adhesive article is heat sealed to the substrate and covers the at least one fluid transport structure and the coating layer is positioned to contact fluid of the fluid transport structure.
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