PERFORM ASSEMBLY, CONTAINER ASSEMBLY AND METHOD OF MANUFACTURE PREFORMS OR CONTAINERS WITH THREADS AT THE NECK PORTION

摘要

A finish (14) on a hollow plastic preform (24) or container (12) includes a neck (22) that is at least partially of crystallizable polymer construction and is at least partially crystallized, and a finish ring (14) externally secured over the neck (22). The neck (22) preferably is of molded plastic construction, and preferably is stretched subsequent to molding but prior to external securement of the finish ring. In the preferred embodiments of the invention, the preform (24) or container (12) has an integral body, and the neck (22) is integrally molded with the body (24). The finish ring (14) preferably has at least one external thread (18) for securement of a closure to the container (12) after molding.