Prilling method
CA 2558902 C · Owner: Advansix Resins & Chemicals Llc · Inventors: Shirley, Arthur Ray Jr.; Holt, Timothy G.; Cochran, Keith D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A prilling method comprising the steps of: providing a molten first component. mixing at least a second component with the molten first component. reacting the components to form a shear-thinnable mixture: and prilling the shear--thinnable mixture wherein the prilling comprises mechanically agitating in the prill head to shear thin the shear-thinnable mixture sufficiently to permit prilling. The inventive method can be used to produce fertilizer product comprising ammonium sulfate nitrate.
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 September 7, 2006 and granted March 18, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 7, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.