Method for improving magnesium oxide steel coatings
CA 1308339 C · Owner: Marine Magnesium Company · Inventors: Howe, Michael W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE OF THE INVENTION, "METHOD FOR IMPROVING MAGNESIUM OXIDE STEEL COATINGS" ABSTRACT OF THE INVENTION, This invention is directed to improved magnesium oxide slurries for use in coating silicon steels prior to high temperature annealing, comprising a calcination-modified magnesium oxide and water. Inorganic salts of barium chromium, silicon, zinc or, aluminum are added to magnesium hydroxide prior to calcination, resulting in a calcined magnesium oxide product having improved properties. This invention is also directed to an improved process for coating silicon steel, using the above described improved magnesium oxide product.
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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
- Granted October 6, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 6, 2009.
- 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.