| 摘要 |
<p>PURPOSE:To prepare a polyester resin compsn. useful for producing a stretched bottle excellent in the transparency, heat resistance, and gas barrier properties by compounding polyethylene terephthalate, polyethylene naphthalate, and a premixture of polyethylene terephthalate with polyethylene naphthalate, each in a specified amt. CONSTITUTION:100 pts.wt. in total of 10 to 90 pts.wt. polyethylene terephthalate and 90 to 10 pts.wt. polyethylene naphthalate is compounded with 1 to 20 pts.wt. premixture of 20 to 80wt.% polyethylene terephthalate with 80 to 20wt.% polyethylene naphthalate.</p> |
