Saturated polyester for plastic containers with excellent heat resistance and gas impermeability and method for manufacturing the same
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United States of America Patent
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Feb 13, 2007
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app pub date -
Nov 4, 2002
filing date -
Nov 4, 2002
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Abstract
A method of manufacturing a plastic container includes adding nano-sized silica particles to a saturated polyester in an amount of 20 ppm to 10% by weight during transesterification or esterification and polycondensing an aromatic dicarboxylic acid and ethylene glycol as starting materials. The silica particles have an average particle diameter of 3 100 nm. The saturated polyester is polyethyleneterephthalate.
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