Surface treatment method by photopolymerization to obtain biocidal properties
CA 2505115 C · Owner: Arnautu, Monica · Inventors: Arnautu, Monica; Perichaud, Alain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for treating the surface of a solid substrate which consists in carrying out a photopolymerization and a covalent grafting in situ on said substrate of a biocidal copolymer. Said method is characterized in that it comprises the following steps: a) contacting said solid substrate with a formulation containing: 1) at least one monomer including a biocidal group; 2) at least one compound copolymerizable with said biocidal monomer including a monodi-or polyfunctional monomer or oligomer selected among acrylate epoxide or vinylether monomers or oligomers; 3) at least one photoinitiator selected among free radical and/or cationic photoinitiators; and 4) at least on …
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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
- Filed November 4, 2003 and granted November 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 4, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2025.
- 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
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.