Preform for blow molding a bottle from bioresin
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United States of America Patent
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Issued Date -
Jun 10, 2010
app pub date -
Dec 5, 2008
filing date -
Dec 5, 2008
priority date (Note) -
Abandoned
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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.
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