Oxygen-scavenging polymer blends suitable for use in packaging

Details Oxygen-scavenging polymer blends suitable for use in packaging Oxygen-scavenging polymer blends suitable for use in packaging

2011-07-26

2011-07-26

Miggins, Michael C (Department: 1782)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C428S036900, C428S036920, C428S542800, C252S188280, C252S184000, C252S399000, C252S400100, C252S400200, C252S400210, C252S400220, C252S400230, C252S400240

Reexamination Certificate

active

07985456

ABSTRACT:
Polymer blends are disclosed that comprise one or more polybutadiene homopolymers or copolymers having at least one functionality capable of entering into condensation reactions; one or more polyethylene terephthalate homopolymers or copolymers obtained using a catalyst system comprising aluminum atoms and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues, optionally obtained by a melt-phase polymerization process; and one or more transition metal atoms. The blends are useful for packaging, and exhibit improved oxygen-scavenging activity compared with blends made using many conventional polyethylene terephthalate polymers prepared with conventional catalyst systems.

REFERENCES:
patent: 2007/0066735 (2007-03-01), Quillen et al.
patent: WO 2006/025827 (2006-03-01), None

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