Patent ID: 8247049
Filing Date: 2012-08-21
Classification: B29B,B29C,B29K,B29L,B65D,Y10T

Abstract:
1. An injection molded preform for making a stretch blow molded container, wherein the preform comprises a container grade PET Copolymer, wherein the container grade PET Copolymer has a free blow volume of from about 650 to about 800 ml measured at 100° C. and 90 psi using a 25 gram weight preform designed for a 500 ml container with a maximum diameter of 65 mm and a height of 200 mm from below the container finish and having a hoop stretch ratio of 5.5 and an axial stretch ratio of 2.6, wherein the preform is configured for making a stretch blow molded container having an overall stretch ratio of the container relative to the preform of from about 12 to about 16, wherein the overall stretch ratio is a product of a hoop stretch ratio and an axial stretch ratio, wherein the hoop stretch ratio of the container relative to the preform is from about 5.6 to about 6.5, and wherein the axial stretch ratio of the container relative to the preform is from about 2.4 to about 2.7.