Hot melt adhesive composition containing antimicrobial compound
CA 2207641 C · Owner: Cox, David D. · Inventors: Annett, Leland W.; Cox, David D.; Lund, Robert E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adhesive composition having dispersed therein a broad spectrum antimicrobial , agent for use in medical applications such as an adhesive for surgical , drapes wound dressings and tapes. The adhesive is composed of acrylic polymers tackifiers and a antimicrobial agent, diiodomethyl-p-tolylsulfone. The adhesive , composition is essentially solventless and capable of application in a hot melt , process while maintaining stability at elevated temperatures in the range of 275F. to , 350F. which not only allows hot melt application but allows for ethylene , oxide , sterilization under heat stress.
Read the whole patent
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
- Filed June 12, 1997 and granted May 15, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 12, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 12, 2019.
- 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.