| 摘要 |
PURPOSE:To make a devil's-tongue derivative which is not processed into hydro phobic gel only by freezing or heating, into hydrophobic gel, by blending the devil's-tongue derivative with a catalyst and freezing or heating the blend. CONSTITUTION:A tuberous root of devil's-tongue or devil's-tongue powder is treated with an alkali substance to give a devil's-tongue derivative, which is mixed with a catalyst and frozen or heated. A caustic alkali, alkali carbonate, alkali phosphate, organic acid salt, basic amino acid, amine, glair, etc., may be cited as the catalyst. |
