Apparatus for the simultaneous production of preforms consisting of polyethylene terephthalate (PET) fed and distributed to a plurality of cavities. In order to reduce the occurrence of acetaldehyde formation in a cavity, for example, a heated distributor block used in the production of preforms of the...http://www.google.de/patents/US5421715?utm_source=gb-gplus-sharePatent US5421715 - Apparatus for enabling a simultaneous production of preforms
