| 摘要 |
1,130,725. Refractories. DYNAMIT NOBEL A.G. 18 Jan., 1966 [19 Jan., 1965], No. 2397/66. Heading C1J Refractory bodies are produced by mixing an expanded oxide-containing material and a silicon and/or boron compound, shaping, impregnating with a synthetic resin and thereafter curing the resin. Expanded clay, mica and shale and pumice are the specified oxidecontaining materials. Silicon compounds specified are alkali metal silicates, and silicic acid esters. Boron compounds specified are boric acid, boric acid salts and triphenyl borate. The resin may be a phenol or epoxide resin. |
