Abstract:
The present invention provides an oxygen scavenging composition for incorporation into a wall of a package. The composition comprises a polyester base polymer, at least one oligomeric, oxidizable poly(alkylene ether) glycol-a,α, ω-diester having the formula (1) and at least one transition metal in a positive oxidation state. The compositions of the present invention do not exhibit an induction period prior to the onset of oxygen scavenging upon formation into a container.
Abstract:
A crown system includes a crown having a top surface and a bottom surface and a liner having a top surface that contacts a bottom surface of the crown. The liner is configured to absorb oxygen in a headspace and includes at least about 2.2 micromoles of sodium sulfite per cubic millimeter in a volume of the liner to a depth of about 0.003 millimeter from a bottom surface of the liner.
Abstract:
Described herein are oxygen scavengers, oxygen scavenging polymeric compositions, and oxygen scavenging articles. The polymeric compositions comprising the oxygen scavengers may have utility in packaging, sealing, wrapping, and storing oxygen-sensitive substances, e.g., to preserve freshness of foods, beverages, and the like.
Abstract:
The invention provides novel processes for producing in-mold labeled containers and the containers produced using such processes. The processes involve setting a multilayered label having an oxygen barrier layer into a mold and injecting a melted resin suitable for forming a container into the mold. The process forms a container with an oxygen barrier layer. In preferred embodiments, the multilayered label has at least an oxygen absorbing resin layer containing ethylene-vinyl alcohol copolymer and an oxygen absorbent and the container is retortable.
Abstract:
A container for a pH-sensitive product. The container has an openable container body defining an interior volume for holding the product. More specifically, a rigid container defining an interior volume for holding a pH-sensitive product, and comprising at least an inner layer and an outer layer, the inner and outer layers being coextruded layers, the inner layer comprising a polymeric material and a buffer material, the outer layer comprising a moisture-barrier material.
Abstract:
The invention relates to a package (1) for preserving respiring produce (2), in particular vegetables, fruit, and herbs, comprising a packaging material, in particular a polymer film (1A), provided with at least one opening (3) enabling gas exchange with the atmosphere surrounding the package (1). The package (1) contains a scavenger (4).
Abstract:
Die vorliegende Erfindung betrifft ein biologisch abbaubares Material in Form einer Folie oder eines Films, wobei das Material ein Polymer enthält, wobei das Polymer mindestens ein poröses metallorganisches Gerüstmaterial enthält und das mindestens eine poröse metallorganische Gerüstmaterial mindestens eine an mindestens ein Metallion koordinativ gebundene, mindestens zweizähnige organische Verbindung enthält. Die Erfindung betrifft weiterhin Lebensmittelverpackungen enthaltend ein solches Material sowie dessen Verwendung zur Verpackung von Lebensmitteln und die Verwendung eines porösen metallorganischen Gerüstmaterials bei der Lebensmittelverpackung zum Absorbieren von Ethen.
Abstract:
Multilayer oxygen absorbing structure comprising at least two reactive oxygen scavenging layers arranged in sequence: a rapidly absorbing highly reactive oxygen-scavenging system, comprising an oxygen permeable matrix polymer and an oxygen scavenger, and a long life layer comprising high passive oxygen barrier matrix polymer, and an oxygen scavenger.
Abstract:
The present invention teaches a film having a pattern of protruding structures. When used in the vacuum packaging bag material context, the result is a vacuum packaging bag that a consumer can effectively evacuate and hermetically seal. The protruding structures tend to form channels that enable gas to evacuate from within a vacuum packaging bag. In certain embodiments, the protruding structures are formed only on an inner side of the vacuum packaging film, typically through a hot casting or heat-extrusion process. As a result, far less bag material is required than in the prior art patterned film formed through cold embossing processes. The present invention also contemplates a variety of applications for the films, including preformed bags and bag rolls, as well as a variety of apparatus for manufacturing the films and appliances for utilizing the bags and bag rolls.