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US 2005/0154184 A1Published application
Condensation compression molding process and apparatus for production of container preforms
AssigneeThe Coca-Cola Company
InventorYu Shi
Life of this patent
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Abstract
In a method and apparatus for making a container preform comprising a poly(ethylene terephthalate) based resin, a PET based melt is fed from a condensation reactor, in which the PET based melt is made from reacting a diol component and a diacid component, to a compression mold without solidifying the PET based melt between the reactor and the compression mold.
Claims18
A method for making a container preform comprising a poly(ethylene terephthalate) based resin, the method comprising:
- condensation reacting a diol component comprising repeat units from ethylene glycol and a diacid component comprising repeat units from terephthalic acid in a reactor to form a poly(ethylene terephthalate) based melt;
- feeding the poly(ethylene terephthalate) based melt to a compression mold without solidifying the poly(ethylene terephthalate) based melt between the reactor and the compression molder;
- and
- compression molding and solidifying the poly(ethylene terephthalate) based melt in the compression molder to form the preform.
1 more element
An apparatus for making a container preform comprising a poly(ethylene terephthalate) based resin, the method comprising:
- a reactor for reacting a diol component comprising repeat units from ethylene glycol and a diacid comprising repeat units from terephthalic acid in a condensation reaction to form a poly(ethylene terephthalate) based melt;
- a compression molder for receiving the poly(ethylene terephthalate) based melt from the reactor and compression molding the poly(ethylene terephthalate) based melt to form the preform;
- and
- a feeder for feeding the poly(ethylene terephthalate) based melt from the reactor to the compression molder without solidifying the poly(ethylene terephthalate) based melt between the reactor and the compression molder.
1 more element
Dependencies are inferred from the claim text.