Method for producing coagulated polymer latex particles
CA 2227969 A1 · Owner: Laffont, Jerome · Inventors: Gervat, Laurent; Laffont, Jerome; Meunier, Gilles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention discloses a method for batch or continuous producing of coagulated polymer latex particles consisting in partially or totally filling at least one container with one fluid A which may be water a polymer latex emulsion, a coagulating solution the said container being provided with baffles comprising at least one orifice injecting into the said container at least one fluid different from the fluid in the previous step the said injected fluid being a polymer latex emulsion and/or a coagulating solution then creating and maintaining inside the said container an oscillating flow or a pulsed flow in conjunction with vortex or whirlpool formation.
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 June 2, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 2, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 2, 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.