A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 9/70 (2006.01) A61L 26/00 (2006.01)
Patent
CA 2341220
The present invention provides novel "patch in a bottle" technology in which a fluid composition, e.g., an aerosol spray, is applied onto a surface as a fluid, but then dries to form a covering element, such as a patch, having a tack free outer surface covering an underlying adhesive that helps adhere the patch to the substrate. The fluid compositions have a unique chemical formulation that allows such composite patches to form in situ. Specifically, the fluid compositions include a tacky component, such as an adhesive, and a film-forming, non-tacky component. The non-tacky and tacky components are selected to be immiscible with each other so that the components undergo phase separation as the fluid compostion dries.
La présente invention concerne une nouvelle technologie dite "timbre en bombe" dans laquelle une composition de fluide, par exemple une pulvérisation en aérosol, est appliquée sur une surface sous la forme d'un fluide, et ensuite sèche pour former un élément de couverture tel qu'un timbre, ayant une surface extérieure sans colle recouvrant un adhésif sous-jacent aidant à coller le timbre au substrat. Les compositions de fluide ont une formulation chimique unique permettant la formation de ces timbres composites in situ. Spécifiquement, les compositions de fluide comprennent un constituant collant tel qu'un adhésif, et un constituant filmogène non collant. Les constituants non collants et collants sont sélectionnés pour être imiscibles l'un à l'autre de manière que lesdits constituants subissent une séparation de phase à mesure que la composition de fluide sèche.
Brandt Patricia J. Andolino
Leir Charles M.
Wirtanen David J.
3m Innovative Properties Company
Robic
LandOfFree
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