| 摘要 |
<p>The present invention relates to a suckling bottle for infant and a process of preparing the same, which does not exhaust any Environmental Hormone such as bis phenol-A, and has more than 30 times of excellent repetitious heat resistance. The present invention is characterized that firstly, prepare preform by melting injection the homopolyester resin or copolyester resin comprising 85 mole % - 100 mole % of dimethyl-2,6-naphthalene dicarboxylate (NDC), and then produce the suckling bottle for infant by re-heating and blowing molding the prepared preform under the following conditions: inherent viscosity of homopolyester or copolyester: 0.68∩0.83dl/g; re-heating temperature of preform: 160∩210 °C; drawing ratio of vertical and horizontal direction during blowing molding: 1.5∩2.5 times.</p> |
