Castable refractory powder composition, premixed material prepared therefrom, method for casting premixed material, and hardened refractory body obtained therefrom
CA 2491530 A1 · Owner: Oba, Jun · Inventors: Tanaka, Kunio; Takahashi, Nobuyuki; Oba, Jun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A powder composition for a castable refractory comprising a refractory aggregate, a refractory fine powder, an alumina cement a dispersant, and a , hydration terminating agent for the alumina cement; a premixed material prepared by kneading the powder composition for a castable refractory together with water, wherein the hydration terminating agent comprises a substance exhibiting acidity in the form of a solution and is added in an amount adjusted so as for the premixed material to have a pH of 2 to 7; a method for applying the premixed material, which comprises kneading the premixed material together with a hydration initiating agent and then pouring the resulting mixture into a …
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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
- Filed June 30, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 30, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2025.
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Sources & verification
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.