Process for the synthesis of resins containing unsaturations of the (meth)acrylic type to be cured by radiation or heat and used for powder paints
CA 2228267 A1 · Owner: Solutia Italy S.R.L. · Inventors: Farronato, Silvestro; Chinellato, Roberto; Gazzea, Sergio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is characterized by the fact that resins comprising (meth)acrylic unsaturations are obtained by reacting functional groups of unsaturated monomers without solvents at temperatures above 150 ~C and under controlled heat exchange, while maintaining intact their unsaturations with , functional groups of saturated and/or unsaturated polymers. The technologies and the work cycles used for conventional resins may also be used for these resin types.
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 May 24, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 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.