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.

The presently disclosed subject matter is generally directed to a packaging film constructed from water-dispersible and/or biodegradable compositions. Particularly, the disclosed film comprises a first layer constructed from one or more water-dispersible materials, such as water-dispersible paper. The film further comprises a second layer constructed from one or more biodegradable materials, such as poly(hydroxyalkanoate). The first and second layers can be constructed to form a packaging material used to enclose a wide variety of products, including liquids and moisture-sensitive solids. Advantageously, the disclosed film (and associated packaging materials) are dissolvable in water and/or biodegrade when exposed to landfill conditions and/or water.

Disclosed is a composite gypsum board comprising a board core and a concentrated layer, as well as related methods of preparing board and slurries. The board core and the concentrated layer both are formed from water and stucco. The concentrated layer is designed to have higher density and/or nail pull than the core. The concentrated layer is further formed from a polysaccharide that forms a complex with calcium ions, e.g., an alginate compound such as sodium alginate. In some embodiments, the concentrated layer is formed from an enhancing additive to enhance strength therein, while the core is formed without using enhancing additive or less enhancing additive than used in forming the board core.

A method for producing a multilayer film including at least two layers joined by a two-component adhesive includes the following steps: spreading a first component A of a two-component adhesive on a first face of a first layer of film; spreading a second component B of the two-component adhesive on a first face of a second layer of film; bringing the first and second faces of the first and second layers into mutual contact joining the components and to form an adhesive and join the two layers in a multilayer film; and winding the multilayer film obtained.

A plasterboard comprising a gypsum matrix having wood particles embedded therein in an amount of at least 2 wt % relative to the gypsum, the gypsum matrix further comprising glass fibres in an amount of at least 1 wt % relative to the gypsum.

An example composite building material includes one or more layers of polymeric fibers, binding agent, and optional fillers, and at least one surface layer of resin-impregnated paper disposed above and/or below the one or more layers. The one or more layers can include a core layer with longer polymeric fibers and top and bottom layers with shorter polymeric fibers. A method of manufacturing the composite building material includes forming the one or more layers, applying the at least one surface layer above and/or below the one or more layers, and heating and pressing the combined layers.

A multi-layer packaging film structure is disclosed. This packaging film structure includes a barrier web made up of a barrier web core layer, a barrier web skin layer, and a packaging sealant layer. Each of the aforementioned film layers is biodegradable and/or compostable. At least one of the film layers is made up of at least 1 weight percent of poly(3-hydroxypropionate). The packaging film structure may also include a print web or a paperboard substrate.

A load structure may include a panel, a layer of fibrous material, and/or an over mold coating. The panel may include a core. The layer of fibrous material may be disposed on a first side of the panel and an edge of the panel. The over mold coating may be disposed on a second side of the panel.

The present invention relates generally to the field of multi-layer flexible packaging material. In particularly, the present invention relates to a multi-layer flexible packaging material comprising a paper layer, an aluminium layer, a nanoclay barrier coating layer, and a sealing layer applied to the surface of the nanoclay barrier coating layer representing the inner surface of the multi-layer flexible packaging material, said multilayer flexible barrier material being deprived of a polyolefin layer, such as a polyethylene (PE), polyethylene terepthalate (PET) or a polypropylene (PP) layer. The present invention further relates to the use of the multi- layer flexible packaging material in accordance with the present invention to package dry food.

A method of forming a dry floor assembly includes cleaning an upper layer with methyl ethyl ketone (MEK) prior to bonding the upper layer to a carbon wicking layer. Said cleaning removes release agent from the upper layer. The method also includes bonding the upper layer to the carbon wicking layer after said cleaning.