Abstract: A method of making a bottle whereby a polylactic acid preform is stretch blow molded into a biodegradable bioresin bottle. An injection molded polylactic acid or polylactide preform having a finish, a transition portion, a body portion, and a closed end cap portion for making a blow molded biodegradable bioresin bottle having a substantially circular cross-section and a substantially elliptical cross-section. A biodegradable bioresin bottle having both substantially circular and substantially elliptical cross-sectional shapes. Hoop stiffness and bottle geometry are utilized to control the bottle shape resulting from deformation caused by vacuum creation as water vapor permeates outwardly through the bottle walls.

Abstract: A method of making a bottle whereby a polylactic acid preform is stretch blow molded into a biodegradable bioresin bottle. An injection molded polylactic acid or polylactide preform having a finish, a transition portion, a body portion, and a closed end cap portion for making a blow molded biodegradable bioresin bottle having a substantially circular cross-section and a substantially elliptical cross-section. A biodegradable bioresin bottle having both substantially circular and substantially elliptical cross-sectional shapes. Hoop stiffness and bottle geometry are utilized to control the bottle shape resulting from deformation caused by vacuum creation as water vapor permeates outwardly through the bottle walls.