Method for blow molding and cooling plastic articles

摘要

A technique for internally cooling a blow molded article with a coolant comprising a mixture of subzero temperature dry air and water. A pressure swing dessicant bed type dryer and chiller are used to supply the dry air having a dew point of the order of -60 DEG F and a temperature ranging from -30 DEG to -50 DEG F for introduction into the blow molded article.