The sidewall portion 9 wherein said acute angle is variable between a first angle when the container is molded and empty, and a second angle when the container is filled, capped and cooled, wherein {HEAD ~ a measure} of said first angle is greater than {TAIL ~ a measure} of said second angle 
is greater than
The sidewall portion 9 wherein said acute angle is variable between a first angle when the container is molded and empty , and a second angle when the container is filled , capped and cooled , wherein { HEAD ~ a measure } of said first angle is greater than { TAIL ~ a measure } of said second angle
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH