초록

The present invention provides a blow molded heat set PET container having enhanced thermal properties and a first glass transition temperature and a second endothermic transition temperature substantially higher than the glass transition temperature.

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1. A blow molded PET container comprising a wall having a density greater than about 1.370 g/cc that, when subjected to a DSC analysis, the wall has a first endothermic glass transition temperature and a second endothermic transition temperature that is at least 20° C. higher than the first endother

1. A blow molded PET container comprising a wall having a density greater than about 1.370 g/cc that, when subjected to a DSC analysis, the wall has a first endothermic glass transition temperature and a second endothermic transition temperature that is at least 20° C. higher than the first endothermic glass transition temperature, wherein the blow molded container will not experience a change in volume of more than 3% when filled with a liquid having a temperature of from 100° C. to 132° C. 2. The container of claim 1 wherein the first endothermic glass transition temperature is less than about 100° C. 3. The container of claim 1 wherein a change in heat capacity at the first endothermic glass transition temperature of less than about 0.10 J/g° C. is exhibited. 4. The container of claim 1 wherein the enthalpy of the second endothermic transition temperature is higher than about 2.0 J/g° C. 5. The container of claim 1 wherein the second endothermic transition temperature is higher than 120° C. 6. The container of claim 1 wherein the second endothermic transition temperature is higher than 140° C. 7. The container of claim 1 wherein the second endothermic transition temperature is higher than 160° C. 8. The container of claim 1 wherein the container will experience a change in volume of less than 2%. 9. The container of claim 8 wherein the container will experience a change in volume of less than 1.5%. 10. The container of claim 1 wherein the wall, when subjected to a DSC analysis, will not exhibit a cold crystallization exotherm from 115° C. to 150° C.