Coating processes and curable compositions
CA 2006536 C · Owner: Suemul, Daljit K. · Inventors: Bovey, Denis M. H.; Nield, Eric; Suemul, Daljit K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Curable partially plasticised (optionally particulate) compositions comprising partially crystalline polymers which can be made by for example a non-attritive method comprising heating a mixture of the polymer in a preferably moderate curable solvent for the polymer to a temperature above the melting point of the polymer when in the solvent and then cooling whereupon the polymer re-crystallises from the mixture. Also the use of such compositions in coating and in coating formulation.
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 December 22, 1989 and granted August 24, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 22, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 22, 2011.
- 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.