EP0414920A1 — Aerosol preparation for external use
Assigned to Taisho Pharmaceutical Co Ltd · Expires 1991-03-06 · 35y expired
What this patent protects
The present invention provides a new aerosol preparation for external use mainly directed to skin cooling, which forms sherbet-like foams when sprayed. The stock solution is composed of a mixture of water with a lower alcohol as the base and a mixture of liquefied petroleum gas w…
USPTO Abstract
The present invention provides a new aerosol preparation for external use mainly directed to skin cooling, which forms sherbet-like foams when sprayed. The stock solution is composed of a mixture of water with a lower alcohol as the base and a mixture of liquefied petroleum gas with dimethyl ether as the propellant, blended in a specified compositional ratio so as to form sherbet-like foams. This aerosol preparation is expected to exhibit a combined effect of the aerosol preparation as the coolant and the main ingredient as the drug. It is especially excellent in its application to t he affected part of a human body as compared with the conventional aerosol preparations for external use which are sprayed as droplets.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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