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Asahi Chemical Industry Co Ltd
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Asahi Chemical Industry Co Ltd
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Application filed by Asahi Chemical Industry Co LtdfiledCriticalAsahi Chemical Industry Co Ltd
Priority to JP19430887ApriorityCriticalpatent/JPS6442336A/en
Publication of JPS6442336ApublicationCriticalpatent/JPS6442336A/en
PURPOSE:To provide a uniform shape to bubbles after foaming by heating and to obtain the titled foamed body having stabilized physical properties by mixing powder consisting of a specified natural glassy mineral and a blowing agent with an aq. alkali metal hydroxide soln. and by granulating the mixture under a reaction. CONSTITUTION:Powder consisting of 100pts.wt. natural glassy mineral of <=20mum average particle size such as obsidian and 0.1-5.0pts.wt. blowing agent such as CaCO3 is preheated to 40-100 deg.C, charged into a mixing granulator such as a rolling or rotating type granulator and mixed with a soln. prepd. by dissolving 15-25pts.wt. alkali metal hydroxide such as NaOH in 7-15pts.wt. water. The mixture is granulated under a reaction and dried at 60-200 deg.C as required to obtain the titled foamed body.
JP19430887A1987-08-051987-08-05Production of foamed body of inorganic glass
PendingJPS6442336A
(en)