| 摘要 |
This invention discloses a novel polyester composition having ultraviolet light penetration reduction characteristics use to manufacture polyester bottles. The polyester composition of this invention results from mixing preferably 10-1000 ppm of azimido-benzene ultraviolet absorbent with preferably 0.01 to 2 mol % of 2,6 naphthalene dicarboxylate copolyester and pre-polymerized polyester of preferably over 98 mol %. Using precise concentration and mole ratios when forming the polyester composition of this invention is critical for reducing ultraviolet light penetration, and for keeping manufactured polyester bottles haze values to commercial acceptable levels.
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