Polymerisation and/or crosslinking method under electron beam and/or gamma radiation
CA 2339899 A1 · Owner: Frances, Jean-Marc · Inventors: Priou, Christian; Frances, Jean-Marc; Dhaler, Didier
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a polymerisation and/or crosslinking method under electron beam and/or gamma radiation for compositions based on monomers oligomers and/or polymers with organic functional groups. The invention is characterised in that the crosslinking and/or polymerisation is carried out in the presence of an initiator capable of being activated under electron beam and/or gamma radiation comprising a boron derivative of formula (I) M?+¿B(Ar)¿4?- wherein: M?+¿ a unit bearing a positive charge, is an alkaline metal selected among those of columns IA and IIA of the periodic table; Ar is an aromatic derivative optionally substituted by at least a substituent selected among a fluorine …
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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 August 2, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 2, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 2, 2021.
- 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.