A multilayer foam film comprising high density polyethylene for direct and non-direct food contact and aseptic packaging application is disclosed. In an embodiment, the film has a bulk density of less than 0.962 gr/cm.sup.3 wherein more than 50% of the cells in the foam layer are closed cells. In an embodiment, the foam films are thick (generally more than 8 mils thick) and have a bending stiffness value of more than 18, in Taber stiffness unit configuration according to TAPPI/ANSI T 489 om-15, and the ratio of the mass per unit area (the mass of a unit area of the film in gram per meter-squared (gr/m.sup.2)) over the stiffness value in Taber unit configuration is equal to or less than 13. In an embodiment, the film has a very smooth surface with a smoothness value of less than 25 in Sheffiled smoothness unit configuration according to TAPPI T 538. The described foam film can have a water vapor transmission rate value of less than 1 gr/m.sup.2/24 hr, according to ASTM E398-13. The described foam film can have an oxygen transmission rate value of less than 10 cc/m.sup.2/24 hr, according to ASTM D3985.

Provided are barrier laminates including polyethylene which offer heat resistance and a wide sealing window. The laminates can be fully compatible with polyethylene recycling streams and can exhibit improved, maintained, or desirable properties in comparison to existing laminate structures that are not fully compatible with polyethylene recycling streams. The laminate comprises a multilayer film, a polyethylene film, and an adhesive. The adhesive adheres the multilayer film to the polyethylene film to provide the laminate.

Aspects of the present disclosure pertain to compositions and methods for preparing silk films for use in food packaging. Exemplary compositions of the present disclosure comprise silk films and packaging coatings as a replacement for traditional food packaging, such as single-use plastic packaging, and/or to extend the shelf-life of foods. The natural bio-based silk coatings of the present disclosure may be odorless, low cost, edible, compostable, come from a renewable source, removable from the packaging for recycling, and are biodegradable. In some embodiments, the silk films and packaging coatings may prolong the shelf-life, enhance or maintain the quality and safety, and/or provide indication of and regulate the freshness of food products.

A multilayer barrier film for food packaging comprises an outer layer comprising a first polymeric material having a moisture vapor transmission rate (MVTR) of greater than or equal to 10 gram.Math.mil/100 in.sup.2/day; a first inner layer adjacent to the outer layer, the first inner layer comprising a first retortable grade ethylene vinyl alcohol (EVOH) copolymer; a second inner layer adjacent to the first inner layer, the second inner layer comprising a second polymeric material having a moisture vapor transmission rate (MVTR) of greater than or equal to 10 gram.Math.mil/100 in.sup.2/day; a third inner layer adjacent to the second inner layer, the third inner layer comprising a second retortable grade EVOH copolymer; and a sealing layer adjacent to the third inner layer; wherein the first polymeric material is not a retortable grade EVOH copolymer. Excellent recovery of oxygen barrier over time is achieved by these films and retortable containers made therefrom.

A film structure includes a barrier layer, a first encapsulation layer, and a second encapsulation layer. The barrier layer is formed of a barrier material having a first side and a second side. The first encapsulation layer is formed of a first encapsulation material and attached to the first side of the barrier layer. The second encapsulation layer is formed of a second encapsulation material and is attached to the second side of the barrier layer. The first encapsulation material is different than the second encapsulation material and the first and second encapsulation layers encapsulate the barrier layer.

The invention provides a process of obtaining a bi-oriented co-extruded film of 7 layers by triple bubble process for autoclave sterilization processes, which unlike the current existing materials for food sterilization, the invention does not require an individual manufacturing process of each sheet and subsequent lamination, but it is manufactured in a single step, in addition no metal compound is included in its composition, and provides a shelf life of more than a year in food products that are packaged in the process of sterilization (retort) inside the film.

The present disclosure discloses an environment-friendly polymeric composite prepared using biodegradable, compostable and recyclable materials, yet having good mechanical properties. The polymeric composite of the present disclosure comprises a biodegradable and compostable multilayer first substrate comprising an inner later, an outer layer and a core layer; and a second substrate comprising at least one layer selected from metal layer, metallized layer, paper layer and pretreated paper layer, such that the second substrate is disposed on the outer layer of the multilayer first substrate. The present disclosure further discloses a packaging material comprising the polymeric composite suitable for packaging tobacco based products, pharmaceutical products and food products.

The present invention relates to a composite container comprising a bottom film layer and a top film layer at least partially adhered to the bottom film layer. The top film layer is scored to form at least one resealable flap and at least one pull tab which is not adhered to the bottom film layer. The bottom film layer comprises at least one cavity opening. A cardboard layer is adhered on its lower surface to the upper surface of the top film layer, wherein the cardboard layer has at least one cavity opening which is substantially aligned with the scoring of the top film layer resealable flap and the cardboard layer is perforated to define a perimeter of at least one pull tab which is substantially aligned with and adhered, on its underside, to the upper surface of the top film layer pull tab.

An active energy ray-curable resin composition containing: a reaction product (X) of a component (A) and a component (B) below: (A) at least one selected from the group consisting of meta-xylylenediamine and para-xylylenediamine; (B) at least one selected from the group consisting of unsaturated carboxylic acids represented by the following general formula (1) and derivatives of the unsaturated carboxylic acids: ##STR00001## wherein, in the formula (1), R.sup.1 and R.sup.2 each independently represent a hydrogen atom, an alkyl group having from 1 to 8 carbon atoms, an aryl group having from 6 to 12 carbon atoms, or an aralkyl group having from 7 to 13 carbon atoms; (C) a compound having at least one group selected from the group consisting of a glycidyl group and an isocyanate group, and an ethylenically unsaturated bond-containing group; and (D) a phosphoric acid derivative having an ethylenically unsaturated bond-containing group.

Polymeric coating compositions and articles coated with the polymeric coating compositions are provided. The polymeric coating composition can include an ethylene-based polymer that exhibits desirable melting properties and molecular weight distribution. The polymeric coating composition can provide a thin coating layer on an article while still providing advantageous properties, such as seal strength.