Corrosion resistant coating formed from a petroleum coke and epoxy resin composition
CA 2020592 C · Owner: Filippo, Giuseppe Di · Inventors: Pocaterra, Ricardo Luis Pardey; Filippo, Giuseppe Di
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel organic coating to be used on metal surfaces as a protective barrier against corrosion is described. The coating comprises a base component formed from epoxy resin, petroleum coke magnesium, silicate, a solvent, and optionally a thixotropic agent and/or coal tar and a catalyst component preferably selected from the group consisting of polyamide resins and an amine. The coating of the present invention has a highly enhanced hardness and excellent abrasion resistance properties. A method of preparing a liquid paint-like material to be applied to a metal substrate to form the coating of the present invention is also described.
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 July 6, 1990 and granted November 5, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 6, 2012.
- 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.