Method for photopolymerzation of a polymerisable coating, installation therefor and product comprising the coating obtained
CA 2477665 A1 · Owner: Benhamou, Francis · Inventors: Hansz, Bernard; Gauthier, Jean-Jacques; Benhamou, Francis
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 photopolymerizing a polymerisable coating applied on a substrate as well as an installation for implementing said method enabling very high quality coatings to be obtained and polymerization time to be significantly reduced. Said method is essentially characterized in that it consists in performing at least two rapid simultaneous or successive exposures of the coating deposited on the substrate to infrared rays having different wavelengths derived from at least one generator of short infrared rays (22a) and from at least one generator of medium infrared rays (22b) arranged on the side of said substrate surface (23). The invention is useful for coating …
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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 March 6, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 6, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 2025.
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Timeline
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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.