Abstract: Compositions and methods for generating ClO2 gas are disclosed. A composition that includes a chlorite salt is activated by exposure to ultraviolet light. After an optional storage period, the composition is then exposed to moisture, resulting in the generation of ClO2 gas. Exemplary compositions include polymers in which the chlorite salt is dispersed. The polymers may be used to form films that can be used to package, e.g., food products, pharmaceutical products, medical devices, and/or laboratory devices. Upon exposure to ultraviolet light and moisture, the packaging releases controlled quantities of ClO2 gas, which may disinfect and/or deodorize the packaged device or product.

Abstract: An ovenable tray composite comprises a polymeric based liner and a fiber based component. The polymeric based liner incorporates polyolefin materials for performance in both adhesion (during use) and separation (for disposal) from the fiber based component, as well as high temperature resistant polymers that allow for the entire tray composite to be ovenable. Packages made from the lined trays described herein can be used for packaging food items intended to be heated for cooking or reheating the contents.

Abstract: A package is described. The package comprises a first wall, a second wall, and a first seal. The first wall comprises an exterior layer, an interior layer, and a peelable adhesive layer positioned between the exterior layer and the interior layer. The interior layer comprises a first Sine of weakness and a second Sine of weakness, and the peelable adhesive layer comprises a peelable adhesive region and a first void. The first void is aligned with the first Sine of weakness. The first seal is positioned between the first line of weakness and the second line of weakness, and a first end portion of the first seal is aligned with the first void. Various embodiments of the package are also described.

Abstract: The present invention is directed to packages having a peelable/resealable tamper-evident label adhesively sealed to the portion of packaging body with a line of weakness. The peelable/resealable tamper-evident label comprises an unsealed pull tab and a plurality of adjacent tear slits positioned at or near the periphery of the peelable/resealable tamper-evident label. The tear slits are slanted towards the unsealed pull tab. The packages provide evidence of tampering when one Improperly attempts to open the package by removing the label at a corner or a side of the label. When the label is lifted anywhere other than the unsealed pull tab, it will tear at one or more tear slits which indicates that the label has been tampered with.

Abstract: A thermoformed packaging unit is produced from a thermoformable sheet that has a printed pigment deposit located generally in a central position between the first and second rigid components. The packaging unit has only a low level of pigment distortion even when thermoformed to a draw ratio greater than 4.

Abstract: The present invention is directed to hot-fill/retort packaging films having a sealant layer composition comprising a first propylene-ethylene copolymer, a second propylene-ethylene copolymer and a polyethylene. Hot-fill/retort packaging films are provided herein having a sealant layer composition that exhibits an ultimate hot tack within a range from 88 N/m to 876 H/m (0.5 lb./in to 5 lb./in) at a temperature within the range from 116° C. to 182° C. (240° F. to 360° F.).

Abstract: The invention provides a sterilizable pouch having at least one wall formed of a flexible film and including an opening formed therein for providing communication to an interior space of the package. A breathable material is disposed on an outer surface of the wall covering the opening. The breathable material is joined to the outer surface of the wall with a continuous heat seal. The flexible film forming the wall comprises a multilayer film having a peel feature that permits the breathable material to be peelably removed from the surface of the pouch.

Abstract: A packaging film is described. The packaging film comprises an exterior layer comprising a first polyolefin having a density of less than or equal to 0.925 g/cm3 and a first polyolefin-silicone copolymer. The packaging film is adapted for exposure to temperatures from 88° C. to 177° C. (154° F. to 350° F.). Various embodiments of the packaging film are also described.

Abstract: The present invention provides a peelable microwavable food package capable of absorbing undesired liquids released from packaged food products during storage, display, or heating, including microwave cooking. The present invention provides a peelably sealed microwavable food package in any packaging format including pouches, flow-wrap, horizontal form fill seal (HFFS), vertical form fill seal (VFFS), gas-flushed, vacuum-packaged, sealed rigid plastic containers and the like.

Abstract: Heat-seal condition indicating packages include a first sealing substrate comprising a leuco dye and a second sealing substrate comprising a leuco dye developer. The packages may optionally include a leuco dye sensitizer which dissolves both the leuco dye and the leuco dye developer when melted. The packages further include a heat-seal produced between the first sealing substrate and the second seating substrate. The heat-seal comprises a reaction product of the leuco dye and the leuco dye developer. The reaction product may be colored, which may provide the heat-seal with a detectable optical characteristic. A magnitude of the optical characteristic may be proportion to the strength of the seal between the first and second seating substrates.

Abstract: A multilayer produce packaging film includes a first layer and a chlorine dioxide-producing layer. The chlorine dioxide-producing layer includes a polymer composition and a plurality of chlorite ions. The chlorine dioxide-producing layer is substantially free of an energy-activated catalyst and is substantially free of an acid-releasing compound. However, the film is capable of generating chlorine dioxide when exposed to UV light and moisture.

Abstract: A lidding film to use in food packaging, or the packaging of suitable non-food products, includes a substrate having an outer major surface on which is disposed at least a 5 heat-sealing layer (HS layer), a non-heat-sealing layer (NTIS layer), and a hydrophobic coating. On a side of the lidding film that corresponds to the outer major surface of the substrate is a peripheral region that encircles a central region. At least a first portion of the HS layer fills the peripheral region, and the NIS layer is absent as a cover on, or does not cover, the HIS layer in the peripheral region. At least a first portion of the NHS layer fills the 10 central region, and the HS layer is absent as a cover on, or does not cover, the NIS layer in the central region.

Abstract: Resealable packages having a pressure sensitive adhesive (PSA) layer that is fully integrated into the packaging film and a removable portion easily accessed by a peel tab at the edge of the package, adjacent to a score. Removal of a portion of the package exposes the pressure sensitive adhesive layer and allows for access to the product in the package interior. The package is easily resealed by folding the exposed pressure sensitive adhesive layer to adhere to the outer surface of the package.

Abstract: The present invention relates packaging webs having at least one surface comprising a product-release coating composition which is capable of easily separating from a food product without tearing the web or changing the appearance of the food product, where the product-release coating composition includes a compound of the following formula (I):

Abstract: The present invention is directed to fluid-dispensing flexible pouches having at least a first wall portion, a second wall portion and a means to manually discharge a fluid product from inside the pouch. The means to manually discharge a fluid from inside the pouch comprises an orifice formed in either one of the first or second wall portions or a patch, and a flexible self-sealing dispensing valve having at least two intersecting lines of weakness formed in either one of the first or second wall portions or the patch.

Abstract: The present invention is directed to packaging films having accelerated migration rates of an antimicrobial agent through a product-contact layer which extends the shelf-life of products packaged therein. The product-contact layer includes an ethylene vinyl acetate (EVA) copolymer having a melt flow index of greater than 6 dg/min at 190 C/2.18 kg, an antimicrobial agent and a wetting agent. In some preferred embodiments, greater than 30% of the initial amount of antimicrobial agent present in the product-contact layer can be released after 21 days upon contact with water. The packaging films can be converted into bags, pillow pouches, stand-up pouches, quad pouches, zipped pouches, over-wraps, lidding films, thermoformed trays, vacuum packages, vacuum skin packaging and the like. These films can be used for any product in which it would advantageous to reduce harmful microbial contaminants.

Abstract: A package label is described. The package label comprises a first ply, a second ply, and a first edge. The second ply comprises a pull tab comprising a first boundary adjacent the first edge, a second boundary opposing the first boundary, and a first adhesive deadener area. The second ply also comprises a first line of weakness adjacent the second boundary and positioned apart from the first adhesive deadener area. The first line of weakness is linear. The second ply further comprises a first stopping feature adjacent a first end of the first line of weakness and a second stopping feature adjacent a second end of the first line of weakness. Various embodiments of the package label are also described.

Abstract: A multilayer medical packaging film includes a first layer and a chlorine dioxide-producing layer. The chlorine dioxide-producing layer includes a polymer composition and a plurality of chlorite ions. The chlorine dioxide-producing layer is substantially free of an energy-activated catalyst and is substantially free of an acid-releasing compound. However, the film is capable of generating chlorine dioxide when exposed to UV light and moisture.

Abstract: A film for packaging a product that has a pharmaceutical active agent includes a product-contacting sealing layer. The product contacting layer includes at least 90 wt. % of an ethylene norbornene copolymer having a glass transition temperature in a range from 50° C. to 110° C. The pharmaceutical active agent comprises a Hansen Solubility Parameter for the product-contacting sealing layer of 0.5 or greater.

Abstract: A peelable package is described. The package comprises a first sealant layer comprising low density polyethylene and a first contaminant and a second sealant layer comprising polyethylene polymer, such as high-density polyethylene, low density polyethylene, ethylene alpha-olefin copolymer or blends of such, and a second contaminant. The first contaminant and the second contaminant are selected from the group consisting propylene/ethylene copolymer with ethylene content from about 0.1 mol % to about 5 mol %, polypropylene homopolymer, butene/ethylene copolymer and polybutene homopolymer. The first contaminant of the first sealant layer may be the same as or different than the second contaminant of the second sealant layer. Also described are various embodiments of the first sealant layer, the second sealant layer and the peelable seal that is formed between the first sealant layer and the second sealant layer.