Patent ID: 9221223
Filing Date: 2015-12-29
Classification: B29C,B29D

Abstract:
1. A method of forming a container that is operable to hold a liquid substance, the container made from a polymeric material, the method comprising: providing a preform of the container, the preform being heated and having a wall with an interior region and an exterior region; disposing the preform in a mold cavity having a mold surface; while in the mold cavity, the interior region of the preform being at a first interior temperature and the exterior region of the preform being at a first exterior temperature, the first interior temperature being greater than the first exterior temperature; introducing the liquid substance into the preform at a substance temperature to expand the preform toward the mold surface while the interior region of the preform is at the first interior temperature and the exterior region of the preform is at the first exterior temperature, the substance temperature being less than the first exterior temperature; and completing the introducing of the liquid substance, wherein after completing the introducing of the liquid substance the interior region of the wall is at a second interior temperature and the exterior region of the wall is at a second exterior temperature, the second interior temperature being not significantly less than the second exterior temperature.