A method for production of porous semiproducts from aluminum alloy powders
CA 2454169 C · Owner: Litvintsev, Alexander Ivanovich · Inventors: Litvintsev, Alexander Ivanovich; Litvintsev, Sergei Alexandrovich; Litvintsev, Boris Alexandrovich
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A method for producing porous materials having high thermal sound insulation, energy , absorption, lightweight incombustibility and ecological cleanness is described. The method , comprises mixing wrought or cast aluminum alloy powders with a foaming agent and adding an , aluminum oxide/aluminum hydroxide mixture or ground scrap particles of aluminum alloys. An , attritor mixes the ground particles to obtain a mechanically alloyed powder alloy. The mixture is , heated and poured in a container for vibro compaction and temperature maintenance, and , transferred to a rectangular groove of a rolling mill for continuous hot compaction in a dead , groove of horizontal rollers between …
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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.
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- Filed June 11, 2002 and granted August 9, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 11, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 2024.
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