Procedure for continuous manufacturing of expandable plastic granulates

摘要

The method for the continuous manufacturing of expandable plastic granulate (G) by the impregnating of a molten plastic melt (F) with a fluid blowing agent (B) entails imparting an increased pressure to the fluid used in the granulating, on account of which a swelling action of the blowing agent in the not yet solidified granulate is at least partially suppressed. A regulating and measuring takes place of the parameters set for granulating, measurement values compared with set values, and deviations used for the influencing by a cooler of the heat absorption from the impregnated melt. An independent claim is included for a plant for the manufacture of expandable plastic granulate.