Patent ID: 7316798

Claim:
A process for biaxially drawing and blow-molding a polyethylene terephthalate resin bottle, which is a double blow molding process comprising: a primary blow molding step of biaxially drawing and blow molding preform ( 1 ) into a primary intermediate product ( 4 ); a step of heating said primary intermediate product ( 4 ) in the heating furnace to shrink-mold it into a secondary intermediate product ( 5 ); and a secondary blow molding step of molding said secondary intermediate product ( 5 ) into a bottle ( 6 ), wherein just before the secondary blow molding step, the secondary intermediate product ( 5 ) is standing by for the secondary blow molding step and is maintained at a temperature at least 40° C. higher than the mold temperature used in said secondary blow molding step.