Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2007-02-13
2007-02-13
Yoon, Tae H (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C524S493000, C977S726000
Reexamination Certificate
active
10286377
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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Jo Deog Jae
Kim Soon Sik
Lee Jin Woo
Egbert Law Offices
Saehan Industries Incorporated
Yoon Tae H
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