Nasal dilators and strips, methods of their manufacture, and methods for improving the breathing of individuals are provided. The strips and dilators include an elongated substrate, with or without a dilating component or portion, having top and bottom surfaces and a pressure-sensitive adhesive disposed on the bottom surface. The dilator is designed to provide a gentle expanding force to the nasal wall tissue when the dilator is adhesively attached to the nose. This invention further includes a cosmetic fragrance, an aromatic medication and/or transdermal medication disposed on the strips or dilators. In order to improve the shelf-life and in-use olfactory effectiveness of such products, fragrance delivery mechanisms are used. Separation of volatile oils and adhesives are also provided to minimize adhesive residue.

Adhesively applied external nasal strips and dilators containing medications and fragrances

Non-uniform water-insoluble interpenetrating polymer blend compositions comprising a first permeable water swellable polymer substrate interpenetrated in a gradient substantially normal to the substrate surface by a second less permeable condensation polymer to form a diffusion rate controlling membrane therein. Such compositions are useful as polymers with reduced permeabilities for water and organic solvents and therefore for the controlled delivery of active ingredients such as fragrances and bio-affecting agents into air or aqueous environments, or in membrane separation processes.

Membrane modified hydrogels

Small honeycombed devices, such as wafers, for hunting, trapping and other purposes are molded from plastic material impregnated with artificial simulations of natural scents or other scents such as insect repellants, attractants or insecticides, deodorants or deodorizers, or decorative and floral fragrances. Means may be included by which the devices can be removably stacked together to intensify a particular scent or to provide a combination of different scents and/or by which the devices can be suspended from a supporting object.

Molded scent impregnated devices

Nasal dilators and methods for improving the breathing of individuals are provid The dilator includes an elongated substrate having top and bottom surfaces and a pressure-sensitive adhesive disposed on the bottom surface The elongated substrate can be made with resilient or spring material, or a resilient member can be bonded to the substrate to provide a gentle expanding force to the nasal wall tissue when the dilator is adhesively attached to the nose This invention further includes an aromatic or transdermal substance, or both, disposed on the dilator to further improve breathing Ideal aromatic substances include camphor and menthol The aromatic substance can be disposed in a segregate form or in body activatable composition

Medicated nasal dilator

Thermoplastic elastomeric films comprise from about 40% to about 80% of an elastomeric block copolymer and from about 20% to about 60% of an ethylene-vinyl acetate copolymer. The block copolymer has at least two monoalkenyl arene polymer end blocks and at least one elastomeric conjugated diene midblock. The monoalkenyl arene polymer blocks comprise from about 8% to about 55% by weight of the block copolymer. The block copolymer has a melt index of less than about 10. The ethylene-vinyl acetate copolymer comprises from about 22% to about 33% vinyl acetate and has a melt index of less than about 0.6. The film is from about 0.03 mm to about 0.15 mm in thickness.

Nonblocking elastomeric polymer blends of ABA block copolymer and ethylene-vinyl acetate copolymer

Slow-release air freshener compositions having favorable depletion characteristics comprise an odorant (perfume) intimately dispersed in a polymeric mixture comprising 10-50% by weight of a certain block copolymer, 2-10% by weight polystyrene and 30-50% by weight of ethylene vinyl acetate copolymer.

Gerrit Nitters

Papers

Slow-release air freshener polymer-blend composition

Mittel zur luftverbesserung