Appeal No. 95-3789
Application No. 08/047,047
APPENDIX
15. In a hot filled container of the type which is filled
with a hot liquid product and thereafter internally pressurized
and then sealed with a closure, the improvement comprising;
an expanded biaxially-oriented polyester preform
container, the container including a neck finish, a body
portion and a base portion;
the body portion having a moderately high degree of
biaxial orientation with orientation induced crystallinity
based on a planar stretch ratio on the order of 9 to 12,
said orientation providing both thermal stability and a high
resistance to internal pressurization of the container;
the base portion being substantially thicker than the
body portion to provide both thermal stability and a high
resistance to internal pressurization of the container; and
the container having been filled with a hot product at
a temperature on the order of 185-190°F, internally
pressurized at a pressure on the order of 40 to 45 psig and
then sealed by application of a closure to the neck finish,
without the container undergoing any substantial vacuum
collapse or creep deformation.
19. In a method of making a hot filled container of the
type which is filled with a hot liquid product and thereafter
internally pressurized and then sealed with a closure, the
improvement comprising;
stretch blow molding a biaxially oriented polyester
container from a preform, the container including a neck
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Last modified: November 3, 2007