| 摘要 |
PURPOSE:To prepare a water-base, liq. cold reserving material which exhibits a good fluidity even at low temp., stores latent heat, and is used for cooling various substances. CONSTITUTION:The title material is prepd. by using, as the main component, microcapsules comprising aminoplast resin shells and a water-immiscible, core compd. which undergoes a phase change and melts at 0-15 deg.C. Water-immiscib1e paraffins, fatty acids, and esters are examples of the compd.; a melamine resin and a urea resin, examples of the resin. |
