Under the economic conditions which improve to granule of converting the method the thermoplastic polymer powder

摘要

The thermoplastic polymer, with the method to granule of converting the thermoplastic polyolefine desirably, it introduces the powder of the thermoplastic polymer which is produced with polymerization reactor into the extruder, melts, and converts homogeneously in the extrusion inside of a plane, it pressurizes after that through the extruding die, to granule it converts the thermoplastic polymer powder and by pulverizing and cools. According to this invention, before introducing the organic solvent or suspension medium, into the extruder, 0.001 - 20 mass % it adds to polymer powder at the quantity of the range. This invention is useful in the especially polyethylene or granule conversion of the polypropylene, it increases the throughput with fixed energy consumption because of this, or it is possible to decrease the energy consumption at the fixed polymer throughput. Selective figure It is not