| 摘要 |
PURPOSE:To mold a paraffin-based heat storage material into a desired shape in a short time at a high productivity. CONSTITUTION:A raw material compsn. comprising a paraffin and a hydrocarbon polymer is melt mixed, cooled, formed into particles or a band, and extrusion molded at a temp. at least 5 deg.C higher than the heat storage temp. and at least 5 deg.C lower than the m.p. of the polymer. |
