| 摘要 |
<p>1,272,010. Cellular ceramics. OTSUKA KAGAKU YAKUHIN K.K. 28 Nov., 1969 [20 Jan., 1969], No. 58297/69. Heading C1J. A light weight ceramic is obtained from a mixture of a ceramic powder, sufficient aqueous solution of SiO 2 or Al 2 O 3 providing 4-40% solids, and a blowing agent decomposable at 50-300‹ C., and of 5000-50,000 c.p.s. viscosity by placing in a mould and heating to foam and gel the mixture, followed by firing at 800- 1600‹ C. Ceramics and blowing agents are as in Specification 1,272,009. Clay and water soluble organics (again as in Specification 1,272,009) are optional.</p> |
