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US 12,251,861 B2Granted
Barriers for plastic preforms and containers and preforms and containers made therewith
AssigneePlastipak Belgium BVBA
InventorYouri Michiels
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Abstract
A barrier for injection molding, the barrier including a manganese (Mn) catalyst and an oxygen barrier. In embodiments, the oxygen barrier comprises MXD6. Such barriers may be included with a polymer to form a composition used in an injection process. In other embodiments, a barrier includes a transition metal catalyst, an organic compound, and a radical initiator. In embodiments, the radical initiator comprises one or more azo-compounds or peroxides. Plastic preforms and containers that are injection molded with such barriers/compositions are also disclosed.
Claims21
A barrier for plastic injection molding, the barrier comprising:
- a manganese catalyst;
- and
- an oxygen barrier;
- wherein a polynuclear complex is created via manganese ions that are separated by organic bifunctional ligands comprising terephthalic acid.
1 more element
Dependencies are inferred from the claim text.