Claims
- 1. A polyester bottle made by:reacting either DMT or TA with EG by undergoing an esterification reaction followed by a polycondensation reaction, thereby forming a resin; adding before said polycondensation reaction, a preblended cobalt-phosphorus additive; injection molding said resin to produce a preform; and stretch-blow molding said preform to form a bottle.
- 2. The bottle of claim 1, wherein said cobalt is selected from the class of cobalt acetate, cobalt benzoate, cobalt arsenate, cobalt formate, and mixtures of these.
- 3. The bottle of claim 2, wherein said phosphorus is selected from the class of phosphoric acid, polyphosphoric acid, and phosphorus acid, and a mixture of these.
- 4. The bottle of claim 1, wherein the percent haze and the yellowness of the bottle are less than bottles having no cobalt-phosphorus preblended.
- 5. A polyester bottle made by:reacting either DMT or TA with EG by undergoing an esterification reaction followed by a polycondensation reaction, thereby forming a resin; adding before said polycondensation reaction, a preblended cobalt-phosphorus additive; and molding said resin to form a bottle.
- 6. The bottle of claim 5, wherein said cobalt is selected from the class of cobalt acetate, cobalt benzoate, cobalt arsenate, cobalt formate, and mixtures of these.
- 7. The bottle of claim 6, wherein said phosphorus is selected from the class of phosphoric acid, polyphosphoric acid, and phosphorus acid, and a mixture of these.
- 8. The bottle of claim 5, wherein the percent haze and the yellowness of the bottle are less than bottles having no cobalt-phosphorus preblended.
- 9. A polyester preform made by:reacting either DMT or TA with EG by undergoing an esterification reaction, followed by a polycondensation reaction, thereby forming a resin; adding before said polycondensation reaction, a preblended cobalt-phosphorus additive; and injection molding said resin to produce a preform.
- 10. The preform of claim 9, wherein said cobalt is selected from the class of cobalt acetate, cobalt benzoate, cobalt arsenate, cobalt formate, and mixtures of these.
- 11. The preform of claim 10, wherein said phosphorus is selected from the class of phosphoric acid, polyphosphoric acid, phosphorus acid, and mixtures of these.
Parent Case Info
This application is a divisional of application Ser. No. 09/587,064, filed Jun. 2, 2000 now U.S. Pat. No. 6,632,917.
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