POLYMER PELLETS WITHOUT VOIDS, A PROCESS FOR THEIR PREPARATION AND IMPROVED MOLDING PROCESSES AND MOLDED ARTICLES USING VOIDLESS POLYMER PELLETS

摘要

Polymer pellets which do not contain an interior vacuum void or contain only such a void which is reduced in size. These pellets are prepared by cutting an extruded strand which has been quenched in a liquid bath which is warm enough to avoid cooling the exterior shell of the strand and the interior core of the strand at different rates and/or which has been extruded through an elliptical die.