Method to increase the crystallization rate of polyesters
AssigneeThe Coca-Cola Company
InventorsMark Rule, Yu Shi
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Abstract
A method for increasing the crystallization rate of a crystallization polyester comprises incorporating into the polyester an effective amount of a hyperfunctional nucleation agent. The hyperfunctional nucleating agent comprises a plurality of functional groups and form stable nuclei around which the polyester crystallizes. The hyperfunctional nucleating agent facilitates faster crystallization and formation of many small crystallites. Methods of making articles such as containers with polyesters are also disclosed.
Claims40
A method for increasing the crystallization rate of a crystallizable polyester comprising incorporating into the polyester a hyperfunctional nucleation agent characterized by having a plurality of functional groups which react with polyester chains, the hyperfunctional nucleation agent present in an amount effective to increase the crystallization rate of the crystallizable polyester.
A method for crystallizing polyester comprising thermoforming a mixture comprising polyester and a hyperfunctional nucleation agent characterized by having a plurality of functional groups which react with polyester chains, the hyperfunctional nucleation agent present in an amount effective to increase the crystallization rate of the crystallizable polyester.
A thermally formable composition comprising polyester and a hyperfunctional nucleation agent characterized by having a plurality of functional groups which react with polyester chains, the hyperfunctional nucleation agent present in an amount effective to increase the crystallization rate of the crystallizable polyester.
Dependencies are inferred from the claim text.