| 摘要 |
<p>PURPOSE:To improve natural resource economy by using as cleaning material or forming material of an extruding machine and to reutilize it economically by a method in which powdered cross linked plastic scrap is mixed with the same kind of thermoplastic which is uncross linked and is molten at specified temperature, and then it is pelletized. CONSTITUTION:Cross linked plastic scrap A [e.g. cros linked polyethylene, gel fraction value by ASTMD2765 must be equal to or more than 30%, or cross linked vinyl acetate copolymer (EVA), gel fraction value by ASTMD2765 must be equal to or more than 40%] is powdered. This powdered material is mixed with the same kind of thermoplastic which is uncross linked (B), and after said mixture is molten at extruding temperature of 150-230 deg.C, it is pelletized by cooling and solidifying. This product is excellent in adhesive wiping effect, so high cleaning effect may be obtained by less amount of resin and shorter time than by former products.</p> |
