Pressure-sensitive adhesive film article having high moisture vapor transmission
CA 1330503 C · Owner: Minnesota Mining And Manufacturing Company · Inventors: Cole, Susan M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A dressing having a continuous film of pressure-sensitive adhesive is described which film has dispersed therein a discontinous gaseous phase contained within voids in the adhesive and a high moisture vapor transmission such that the adhesive is useful as a dressing for moist healing of wounded skin without skin maceration. The cellular structure of the adhesive film provides microreserviors in the adhesive which provide mechanical cushioning of a wound covered by the adhesive film and in, conjunction with the hydrophilicity of the adhesive allow, for the controlled transmission of moisture through the adhesive and absorbence of moisture by the adhesive. This controlled …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 5, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 5, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.